From 2cbc9481fa2303dbeecff8ba195f680cb05d8301 Mon Sep 17 00:00:00 2001
From: Oleg Kalachev <okalachev@gmail.com>
Date: Mon, 28 Jan 2019 19:31:13 +0300
Subject: [PATCH] Add ros3d.js web visualization page

---
 .gitattributes                 |     6 +-
 clever/launch/clever.launch    |     3 +
 clever/www/index.html          |     1 +
 clever/www/js/eventemitter2.js |   573 +
 clever/www/js/ros3d.js         | 54809 +++++++++++++++++++++++++++++++
 clever/www/js/roslib.js        |  3693 +++
 clever/www/js/three.min.js     |   898 +
 clever/www/js/viz.js           |    59 +
 clever/www/viz.html            |    14 +
 9 files changed, 60054 insertions(+), 2 deletions(-)
 create mode 100644 clever/www/js/eventemitter2.js
 create mode 100644 clever/www/js/ros3d.js
 create mode 100644 clever/www/js/roslib.js
 create mode 100644 clever/www/js/three.min.js
 create mode 100644 clever/www/js/viz.js
 create mode 100644 clever/www/viz.html

diff --git a/.gitattributes b/.gitattributes
index 498e3427..b27c18f8 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,5 @@
-apps/ios/cleverrc/roslib.js linguist-vendored
 apps/ios/cleverrc/BinUtils.swift linguist-vendored
-apps/android/app/src/main/assets/roslib.js linguist-vendored
+roslib.js linguist-vendored
+eventemitter2.js linguist-vendored
+ros3d.js linguist-vendored
+three.min.js linguist-vendored
diff --git a/clever/launch/clever.launch b/clever/launch/clever.launch
index d019f719..576639cc 100644
--- a/clever/launch/clever.launch
+++ b/clever/launch/clever.launch
@@ -56,6 +56,9 @@
     <!-- rosbridge -->
     <include file="$(find rosbridge_server)/launch/rosbridge_websocket.launch" if="$(eval rosbridge or rc)"/>
 
+    <!-- tf2 republisher for web visualization -->
+    <node name="tf2_web_republisher" pkg="tf2_web_republisher" type="tf2_web_republisher" output="screen" if="$(arg rosbridge)"/>
+
     <!-- vl53l1x ToF rangefinder -->
     <node name="vl53l1x" pkg="vl53l1x" type="vl53l1x_node" output="screen" if="$(arg rangefinder_vl53l1x)">
         <param name="frame_id" value="rangefinder"/>
diff --git a/clever/www/index.html b/clever/www/index.html
index a9c35c1d..029377df 100644
--- a/clever/www/index.html
+++ b/clever/www/index.html
@@ -4,6 +4,7 @@
 	<li><a href="docs">View documentation</a> (snapshot of <a href="http://clever.copterexpress.com">clever.copterexpress.com</a>)</li>
 	<li><a href="" id="wvs">View image topics</a> (<code>web_video_server</code>)</li>
 	<li><a href="" id="butterfly">Open web terminal</a> (<code>Butterfly</code>)</li>
+	<li><a href="viz.html">View 3D visualization</a> (<code>ros3djs</code>)</li>
 </ul>
 
 <script type="text/javascript">
diff --git a/clever/www/js/eventemitter2.js b/clever/www/js/eventemitter2.js
new file mode 100644
index 00000000..bde69e85
--- /dev/null
+++ b/clever/www/js/eventemitter2.js
@@ -0,0 +1,573 @@
+/*!
+ * EventEmitter2
+ * https://github.com/hij1nx/EventEmitter2
+ *
+ * Copyright (c) 2013 hij1nx
+ * Licensed under the MIT license.
+ */
+;!function(undefined) {
+
+  var isArray = Array.isArray ? Array.isArray : function _isArray(obj) {
+    return Object.prototype.toString.call(obj) === "[object Array]";
+  };
+  var defaultMaxListeners = 10;
+
+  function init() {
+    this._events = {};
+    if (this._conf) {
+      configure.call(this, this._conf);
+    }
+  }
+
+  function configure(conf) {
+    if (conf) {
+
+      this._conf = conf;
+
+      conf.delimiter && (this.delimiter = conf.delimiter);
+      conf.maxListeners && (this._events.maxListeners = conf.maxListeners);
+      conf.wildcard && (this.wildcard = conf.wildcard);
+      conf.newListener && (this.newListener = conf.newListener);
+
+      if (this.wildcard) {
+        this.listenerTree = {};
+      }
+    }
+  }
+
+  function EventEmitter(conf) {
+    this._events = {};
+    this.newListener = false;
+    configure.call(this, conf);
+  }
+
+  //
+  // Attention, function return type now is array, always !
+  // It has zero elements if no any matches found and one or more
+  // elements (leafs) if there are matches
+  //
+  function searchListenerTree(handlers, type, tree, i) {
+    if (!tree) {
+      return [];
+    }
+    var listeners=[], leaf, len, branch, xTree, xxTree, isolatedBranch, endReached,
+        typeLength = type.length, currentType = type[i], nextType = type[i+1];
+    if (i === typeLength && tree._listeners) {
+      //
+      // If at the end of the event(s) list and the tree has listeners
+      // invoke those listeners.
+      //
+      if (typeof tree._listeners === 'function') {
+        handlers && handlers.push(tree._listeners);
+        return [tree];
+      } else {
+        for (leaf = 0, len = tree._listeners.length; leaf < len; leaf++) {
+          handlers && handlers.push(tree._listeners[leaf]);
+        }
+        return [tree];
+      }
+    }
+
+    if ((currentType === '*' || currentType === '**') || tree[currentType]) {
+      //
+      // If the event emitted is '*' at this part
+      // or there is a concrete match at this patch
+      //
+      if (currentType === '*') {
+        for (branch in tree) {
+          if (branch !== '_listeners' && tree.hasOwnProperty(branch)) {
+            listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i+1));
+          }
+        }
+        return listeners;
+      } else if(currentType === '**') {
+        endReached = (i+1 === typeLength || (i+2 === typeLength && nextType === '*'));
+        if(endReached && tree._listeners) {
+          // The next element has a _listeners, add it to the handlers.
+          listeners = listeners.concat(searchListenerTree(handlers, type, tree, typeLength));
+        }
+
+        for (branch in tree) {
+          if (branch !== '_listeners' && tree.hasOwnProperty(branch)) {
+            if(branch === '*' || branch === '**') {
+              if(tree[branch]._listeners && !endReached) {
+                listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], typeLength));
+              }
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i));
+            } else if(branch === nextType) {
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i+2));
+            } else {
+              // No match on this one, shift into the tree but not in the type array.
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i));
+            }
+          }
+        }
+        return listeners;
+      }
+
+      listeners = listeners.concat(searchListenerTree(handlers, type, tree[currentType], i+1));
+    }
+
+    xTree = tree['*'];
+    if (xTree) {
+      //
+      // If the listener tree will allow any match for this part,
+      // then recursively explore all branches of the tree
+      //
+      searchListenerTree(handlers, type, xTree, i+1);
+    }
+
+    xxTree = tree['**'];
+    if(xxTree) {
+      if(i < typeLength) {
+        if(xxTree._listeners) {
+          // If we have a listener on a '**', it will catch all, so add its handler.
+          searchListenerTree(handlers, type, xxTree, typeLength);
+        }
+
+        // Build arrays of matching next branches and others.
+        for(branch in xxTree) {
+          if(branch !== '_listeners' && xxTree.hasOwnProperty(branch)) {
+            if(branch === nextType) {
+              // We know the next element will match, so jump twice.
+              searchListenerTree(handlers, type, xxTree[branch], i+2);
+            } else if(branch === currentType) {
+              // Current node matches, move into the tree.
+              searchListenerTree(handlers, type, xxTree[branch], i+1);
+            } else {
+              isolatedBranch = {};
+              isolatedBranch[branch] = xxTree[branch];
+              searchListenerTree(handlers, type, { '**': isolatedBranch }, i+1);
+            }
+          }
+        }
+      } else if(xxTree._listeners) {
+        // We have reached the end and still on a '**'
+        searchListenerTree(handlers, type, xxTree, typeLength);
+      } else if(xxTree['*'] && xxTree['*']._listeners) {
+        searchListenerTree(handlers, type, xxTree['*'], typeLength);
+      }
+    }
+
+    return listeners;
+  }
+
+  function growListenerTree(type, listener) {
+
+    type = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+
+    //
+    // Looks for two consecutive '**', if so, don't add the event at all.
+    //
+    for(var i = 0, len = type.length; i+1 < len; i++) {
+      if(type[i] === '**' && type[i+1] === '**') {
+        return;
+      }
+    }
+
+    var tree = this.listenerTree;
+    var name = type.shift();
+
+    while (name) {
+
+      if (!tree[name]) {
+        tree[name] = {};
+      }
+
+      tree = tree[name];
+
+      if (type.length === 0) {
+
+        if (!tree._listeners) {
+          tree._listeners = listener;
+        }
+        else if(typeof tree._listeners === 'function') {
+          tree._listeners = [tree._listeners, listener];
+        }
+        else if (isArray(tree._listeners)) {
+
+          tree._listeners.push(listener);
+
+          if (!tree._listeners.warned) {
+
+            var m = defaultMaxListeners;
+
+            if (typeof this._events.maxListeners !== 'undefined') {
+              m = this._events.maxListeners;
+            }
+
+            if (m > 0 && tree._listeners.length > m) {
+
+              tree._listeners.warned = true;
+              console.error('(node) warning: possible EventEmitter memory ' +
+                            'leak detected. %d listeners added. ' +
+                            'Use emitter.setMaxListeners() to increase limit.',
+                            tree._listeners.length);
+              console.trace();
+            }
+          }
+        }
+        return true;
+      }
+      name = type.shift();
+    }
+    return true;
+  }
+
+  // By default EventEmitters will print a warning if more than
+  // 10 listeners are added to it. This is a useful default which
+  // helps finding memory leaks.
+  //
+  // Obviously not all Emitters should be limited to 10. This function allows
+  // that to be increased. Set to zero for unlimited.
+
+  EventEmitter.prototype.delimiter = '.';
+
+  EventEmitter.prototype.setMaxListeners = function(n) {
+    this._events || init.call(this);
+    this._events.maxListeners = n;
+    if (!this._conf) this._conf = {};
+    this._conf.maxListeners = n;
+  };
+
+  EventEmitter.prototype.event = '';
+
+  EventEmitter.prototype.once = function(event, fn) {
+    this.many(event, 1, fn);
+    return this;
+  };
+
+  EventEmitter.prototype.many = function(event, ttl, fn) {
+    var self = this;
+
+    if (typeof fn !== 'function') {
+      throw new Error('many only accepts instances of Function');
+    }
+
+    function listener() {
+      if (--ttl === 0) {
+        self.off(event, listener);
+      }
+      fn.apply(this, arguments);
+    }
+
+    listener._origin = fn;
+
+    this.on(event, listener);
+
+    return self;
+  };
+
+  EventEmitter.prototype.emit = function() {
+
+    this._events || init.call(this);
+
+    var type = arguments[0];
+
+    if (type === 'newListener' && !this.newListener) {
+      if (!this._events.newListener) { return false; }
+    }
+
+    // Loop through the *_all* functions and invoke them.
+    if (this._all) {
+      var l = arguments.length;
+      var args = new Array(l - 1);
+      for (var i = 1; i < l; i++) args[i - 1] = arguments[i];
+      for (i = 0, l = this._all.length; i < l; i++) {
+        this.event = type;
+        this._all[i].apply(this, args);
+      }
+    }
+
+    // If there is no 'error' event listener then throw.
+    if (type === 'error') {
+
+      if (!this._all &&
+        !this._events.error &&
+        !(this.wildcard && this.listenerTree.error)) {
+
+        if (arguments[1] instanceof Error) {
+          throw arguments[1]; // Unhandled 'error' event
+        } else {
+          throw new Error("Uncaught, unspecified 'error' event.");
+        }
+        return false;
+      }
+    }
+
+    var handler;
+
+    if(this.wildcard) {
+      handler = [];
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      searchListenerTree.call(this, handler, ns, this.listenerTree, 0);
+    }
+    else {
+      handler = this._events[type];
+    }
+
+    if (typeof handler === 'function') {
+      this.event = type;
+      if (arguments.length === 1) {
+        handler.call(this);
+      }
+      else if (arguments.length > 1)
+        switch (arguments.length) {
+          case 2:
+            handler.call(this, arguments[1]);
+            break;
+          case 3:
+            handler.call(this, arguments[1], arguments[2]);
+            break;
+          // slower
+          default:
+            var l = arguments.length;
+            var args = new Array(l - 1);
+            for (var i = 1; i < l; i++) args[i - 1] = arguments[i];
+            handler.apply(this, args);
+        }
+      return true;
+    }
+    else if (handler) {
+      var l = arguments.length;
+      var args = new Array(l - 1);
+      for (var i = 1; i < l; i++) args[i - 1] = arguments[i];
+
+      var listeners = handler.slice();
+      for (var i = 0, l = listeners.length; i < l; i++) {
+        this.event = type;
+        listeners[i].apply(this, args);
+      }
+      return (listeners.length > 0) || !!this._all;
+    }
+    else {
+      return !!this._all;
+    }
+
+  };
+
+  EventEmitter.prototype.on = function(type, listener) {
+
+    if (typeof type === 'function') {
+      this.onAny(type);
+      return this;
+    }
+
+    if (typeof listener !== 'function') {
+      throw new Error('on only accepts instances of Function');
+    }
+    this._events || init.call(this);
+
+    // To avoid recursion in the case that type == "newListeners"! Before
+    // adding it to the listeners, first emit "newListeners".
+    this.emit('newListener', type, listener);
+
+    if(this.wildcard) {
+      growListenerTree.call(this, type, listener);
+      return this;
+    }
+
+    if (!this._events[type]) {
+      // Optimize the case of one listener. Don't need the extra array object.
+      this._events[type] = listener;
+    }
+    else if(typeof this._events[type] === 'function') {
+      // Adding the second element, need to change to array.
+      this._events[type] = [this._events[type], listener];
+    }
+    else if (isArray(this._events[type])) {
+      // If we've already got an array, just append.
+      this._events[type].push(listener);
+
+      // Check for listener leak
+      if (!this._events[type].warned) {
+
+        var m = defaultMaxListeners;
+
+        if (typeof this._events.maxListeners !== 'undefined') {
+          m = this._events.maxListeners;
+        }
+
+        if (m > 0 && this._events[type].length > m) {
+
+          this._events[type].warned = true;
+          console.error('(node) warning: possible EventEmitter memory ' +
+                        'leak detected. %d listeners added. ' +
+                        'Use emitter.setMaxListeners() to increase limit.',
+                        this._events[type].length);
+          console.trace();
+        }
+      }
+    }
+    return this;
+  };
+
+  EventEmitter.prototype.onAny = function(fn) {
+
+    if (typeof fn !== 'function') {
+      throw new Error('onAny only accepts instances of Function');
+    }
+
+    if(!this._all) {
+      this._all = [];
+    }
+
+    // Add the function to the event listener collection.
+    this._all.push(fn);
+    return this;
+  };
+
+  EventEmitter.prototype.addListener = EventEmitter.prototype.on;
+
+  EventEmitter.prototype.off = function(type, listener) {
+    if (typeof listener !== 'function') {
+      throw new Error('removeListener only takes instances of Function');
+    }
+
+    var handlers,leafs=[];
+
+    if(this.wildcard) {
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      leafs = searchListenerTree.call(this, null, ns, this.listenerTree, 0);
+    }
+    else {
+      // does not use listeners(), so no side effect of creating _events[type]
+      if (!this._events[type]) return this;
+      handlers = this._events[type];
+      leafs.push({_listeners:handlers});
+    }
+
+    for (var iLeaf=0; iLeaf<leafs.length; iLeaf++) {
+      var leaf = leafs[iLeaf];
+      handlers = leaf._listeners;
+      if (isArray(handlers)) {
+
+        var position = -1;
+
+        for (var i = 0, length = handlers.length; i < length; i++) {
+          if (handlers[i] === listener ||
+            (handlers[i].listener && handlers[i].listener === listener) ||
+            (handlers[i]._origin && handlers[i]._origin === listener)) {
+            position = i;
+            break;
+          }
+        }
+
+        if (position < 0) {
+          continue;
+        }
+
+        if(this.wildcard) {
+          leaf._listeners.splice(position, 1);
+        }
+        else {
+          this._events[type].splice(position, 1);
+        }
+
+        if (handlers.length === 0) {
+          if(this.wildcard) {
+            delete leaf._listeners;
+          }
+          else {
+            delete this._events[type];
+          }
+        }
+        return this;
+      }
+      else if (handlers === listener ||
+        (handlers.listener && handlers.listener === listener) ||
+        (handlers._origin && handlers._origin === listener)) {
+        if(this.wildcard) {
+          delete leaf._listeners;
+        }
+        else {
+          delete this._events[type];
+        }
+      }
+    }
+
+    return this;
+  };
+
+  EventEmitter.prototype.offAny = function(fn) {
+    var i = 0, l = 0, fns;
+    if (fn && this._all && this._all.length > 0) {
+      fns = this._all;
+      for(i = 0, l = fns.length; i < l; i++) {
+        if(fn === fns[i]) {
+          fns.splice(i, 1);
+          return this;
+        }
+      }
+    } else {
+      this._all = [];
+    }
+    return this;
+  };
+
+  EventEmitter.prototype.removeListener = EventEmitter.prototype.off;
+
+  EventEmitter.prototype.removeAllListeners = function(type) {
+    if (arguments.length === 0) {
+      !this._events || init.call(this);
+      return this;
+    }
+
+    if(this.wildcard) {
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      var leafs = searchListenerTree.call(this, null, ns, this.listenerTree, 0);
+
+      for (var iLeaf=0; iLeaf<leafs.length; iLeaf++) {
+        var leaf = leafs[iLeaf];
+        leaf._listeners = null;
+      }
+    }
+    else {
+      if (!this._events[type]) return this;
+      this._events[type] = null;
+    }
+    return this;
+  };
+
+  EventEmitter.prototype.listeners = function(type) {
+    if(this.wildcard) {
+      var handlers = [];
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      searchListenerTree.call(this, handlers, ns, this.listenerTree, 0);
+      return handlers;
+    }
+
+    this._events || init.call(this);
+
+    if (!this._events[type]) this._events[type] = [];
+    if (!isArray(this._events[type])) {
+      this._events[type] = [this._events[type]];
+    }
+    return this._events[type];
+  };
+
+  EventEmitter.prototype.listenersAny = function() {
+
+    if(this._all) {
+      return this._all;
+    }
+    else {
+      return [];
+    }
+
+  };
+
+  if (typeof define === 'function' && define.amd) {
+     // AMD. Register as an anonymous module.
+    define(function() {
+      return EventEmitter;
+    });
+  } else if (typeof exports === 'object') {
+    // CommonJS
+    exports.EventEmitter2 = EventEmitter;
+  }
+  else {
+    // Browser global.
+    window.EventEmitter2 = EventEmitter;
+  }
+}();
diff --git a/clever/www/js/ros3d.js b/clever/www/js/ros3d.js
new file mode 100644
index 00000000..f2db774d
--- /dev/null
+++ b/clever/www/js/ros3d.js
@@ -0,0 +1,54809 @@
+var ROS3D = (function (exports,ROSLIB) {
+'use strict';
+
+// Polyfills
+
+if ( Number.EPSILON === undefined ) {
+
+	Number.EPSILON = Math.pow( 2, - 52 );
+
+}
+
+if ( Number.isInteger === undefined ) {
+
+	// Missing in IE
+	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger
+
+	Number.isInteger = function ( value ) {
+
+		return typeof value === 'number' && isFinite( value ) && Math.floor( value ) === value;
+
+	};
+
+}
+
+//
+
+if ( Math.sign === undefined ) {
+
+	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign
+
+	Math.sign = function ( x ) {
+
+		return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;
+
+	};
+
+}
+
+if ( 'name' in Function.prototype === false ) {
+
+	// Missing in IE
+	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name
+
+	Object.defineProperty( Function.prototype, 'name', {
+
+		get: function () {
+
+			return this.toString().match( /^\s*function\s*([^\(\s]*)/ )[ 1 ];
+
+		}
+
+	} );
+
+}
+
+if ( Object.assign === undefined ) {
+
+	// Missing in IE
+	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
+
+	( function () {
+
+		Object.assign = function ( target ) {
+
+			if ( target === undefined || target === null ) {
+
+				throw new TypeError( 'Cannot convert undefined or null to object' );
+
+			}
+
+			var output = Object( target );
+
+			for ( var index = 1; index < arguments.length; index ++ ) {
+
+				var source = arguments[ index ];
+
+				if ( source !== undefined && source !== null ) {
+
+					for ( var nextKey in source ) {
+
+						if ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {
+
+							output[ nextKey ] = source[ nextKey ];
+
+						}
+
+					}
+
+				}
+
+			}
+
+			return output;
+
+		};
+
+	} )();
+
+}
+
+/**
+ * https://github.com/mrdoob/eventdispatcher.js/
+ */
+
+function EventDispatcher() {}
+
+Object.assign( EventDispatcher.prototype, {
+
+	addEventListener: function ( type, listener ) {
+
+		if ( this._listeners === undefined ) this._listeners = {};
+
+		var listeners = this._listeners;
+
+		if ( listeners[ type ] === undefined ) {
+
+			listeners[ type ] = [];
+
+		}
+
+		if ( listeners[ type ].indexOf( listener ) === - 1 ) {
+
+			listeners[ type ].push( listener );
+
+		}
+
+	},
+
+	hasEventListener: function ( type, listener ) {
+
+		if ( this._listeners === undefined ) return false;
+
+		var listeners = this._listeners;
+
+		return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;
+
+	},
+
+	removeEventListener: function ( type, listener ) {
+
+		if ( this._listeners === undefined ) return;
+
+		var listeners = this._listeners;
+		var listenerArray = listeners[ type ];
+
+		if ( listenerArray !== undefined ) {
+
+			var index = listenerArray.indexOf( listener );
+
+			if ( index !== - 1 ) {
+
+				listenerArray.splice( index, 1 );
+
+			}
+
+		}
+
+	},
+
+	dispatchEvent: function ( event ) {
+
+		if ( this._listeners === undefined ) return;
+
+		var listeners = this._listeners;
+		var listenerArray = listeners[ event.type ];
+
+		if ( listenerArray !== undefined ) {
+
+			event.target = this;
+
+			var array = listenerArray.slice( 0 );
+
+			for ( var i = 0, l = array.length; i < l; i ++ ) {
+
+				array[ i ].call( this, event );
+
+			}
+
+		}
+
+	}
+
+} );
+
+var REVISION = '88';
+var MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };
+var CullFaceNone = 0;
+var CullFaceBack = 1;
+var CullFaceFront = 2;
+var CullFaceFrontBack = 3;
+var FrontFaceDirectionCW = 0;
+var FrontFaceDirectionCCW = 1;
+var BasicShadowMap = 0;
+var PCFShadowMap = 1;
+var PCFSoftShadowMap = 2;
+var FrontSide = 0;
+var BackSide = 1;
+var DoubleSide = 2;
+var FlatShading = 1;
+var SmoothShading = 2;
+var NoColors = 0;
+var FaceColors = 1;
+var VertexColors = 2;
+var NoBlending = 0;
+var NormalBlending = 1;
+var AdditiveBlending = 2;
+var SubtractiveBlending = 3;
+var MultiplyBlending = 4;
+var CustomBlending = 5;
+var AddEquation = 100;
+var SubtractEquation = 101;
+var ReverseSubtractEquation = 102;
+var MinEquation = 103;
+var MaxEquation = 104;
+var ZeroFactor = 200;
+var OneFactor = 201;
+var SrcColorFactor = 202;
+var OneMinusSrcColorFactor = 203;
+var SrcAlphaFactor = 204;
+var OneMinusSrcAlphaFactor = 205;
+var DstAlphaFactor = 206;
+var OneMinusDstAlphaFactor = 207;
+var DstColorFactor = 208;
+var OneMinusDstColorFactor = 209;
+var SrcAlphaSaturateFactor = 210;
+var NeverDepth = 0;
+var AlwaysDepth = 1;
+var LessDepth = 2;
+var LessEqualDepth = 3;
+var EqualDepth = 4;
+var GreaterEqualDepth = 5;
+var GreaterDepth = 6;
+var NotEqualDepth = 7;
+var MultiplyOperation = 0;
+var MixOperation = 1;
+var AddOperation = 2;
+var NoToneMapping = 0;
+var LinearToneMapping = 1;
+var ReinhardToneMapping = 2;
+var Uncharted2ToneMapping = 3;
+var CineonToneMapping = 4;
+var UVMapping = 300;
+var CubeReflectionMapping = 301;
+var CubeRefractionMapping = 302;
+var EquirectangularReflectionMapping = 303;
+var EquirectangularRefractionMapping = 304;
+var SphericalReflectionMapping = 305;
+var CubeUVReflectionMapping = 306;
+var CubeUVRefractionMapping = 307;
+var RepeatWrapping = 1000;
+var ClampToEdgeWrapping = 1001;
+var MirroredRepeatWrapping = 1002;
+var NearestFilter = 1003;
+var NearestMipMapNearestFilter = 1004;
+var NearestMipMapLinearFilter = 1005;
+var LinearFilter = 1006;
+var LinearMipMapNearestFilter = 1007;
+var LinearMipMapLinearFilter = 1008;
+var UnsignedByteType = 1009;
+var ByteType = 1010;
+var ShortType = 1011;
+var UnsignedShortType = 1012;
+var IntType = 1013;
+var UnsignedIntType = 1014;
+var FloatType = 1015;
+var HalfFloatType = 1016;
+var UnsignedShort4444Type = 1017;
+var UnsignedShort5551Type = 1018;
+var UnsignedShort565Type = 1019;
+var UnsignedInt248Type = 1020;
+var AlphaFormat = 1021;
+var RGBFormat = 1022;
+var RGBAFormat = 1023;
+var LuminanceFormat = 1024;
+var LuminanceAlphaFormat = 1025;
+var RGBEFormat = RGBAFormat;
+var DepthFormat = 1026;
+var DepthStencilFormat = 1027;
+var RGB_S3TC_DXT1_Format = 2001;
+var RGBA_S3TC_DXT1_Format = 2002;
+var RGBA_S3TC_DXT3_Format = 2003;
+var RGBA_S3TC_DXT5_Format = 2004;
+var RGB_PVRTC_4BPPV1_Format = 2100;
+var RGB_PVRTC_2BPPV1_Format = 2101;
+var RGBA_PVRTC_4BPPV1_Format = 2102;
+var RGBA_PVRTC_2BPPV1_Format = 2103;
+var RGB_ETC1_Format = 2151;
+var LoopOnce = 2200;
+var LoopRepeat = 2201;
+var LoopPingPong = 2202;
+var InterpolateDiscrete = 2300;
+var InterpolateLinear = 2301;
+var InterpolateSmooth = 2302;
+var ZeroCurvatureEnding = 2400;
+var ZeroSlopeEnding = 2401;
+var WrapAroundEnding = 2402;
+var TrianglesDrawMode = 0;
+var TriangleStripDrawMode = 1;
+var TriangleFanDrawMode = 2;
+var LinearEncoding = 3000;
+var sRGBEncoding = 3001;
+var GammaEncoding = 3007;
+var RGBEEncoding = 3002;
+var LogLuvEncoding = 3003;
+var RGBM7Encoding = 3004;
+var RGBM16Encoding = 3005;
+var RGBDEncoding = 3006;
+var BasicDepthPacking = 3200;
+var RGBADepthPacking = 3201;
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+var _Math = {
+
+	DEG2RAD: Math.PI / 180,
+	RAD2DEG: 180 / Math.PI,
+
+	generateUUID: function () {
+
+		// http://www.broofa.com/Tools/Math.uuid.htm
+		// Replaced .join with string concatenation (@takahirox)
+
+		var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split( '' );
+		var rnd = 0, r;
+
+		return function generateUUID() {
+
+			var uuid = '';
+
+			for ( var i = 0; i < 36; i ++ ) {
+
+				if ( i === 8 || i === 13 || i === 18 || i === 23 ) {
+
+					uuid += '-';
+
+				} else if ( i === 14 ) {
+
+					uuid += '4';
+
+				} else {
+
+					if ( rnd <= 0x02 ) rnd = 0x2000000 + ( Math.random() * 0x1000000 ) | 0;
+					r = rnd & 0xf;
+					rnd = rnd >> 4;
+					uuid += chars[ ( i === 19 ) ? ( r & 0x3 ) | 0x8 : r ];
+
+				}
+
+			}
+
+			return uuid;
+
+		};
+
+	}(),
+
+	clamp: function ( value, min, max ) {
+
+		return Math.max( min, Math.min( max, value ) );
+
+	},
+
+	// compute euclidian modulo of m % n
+	// https://en.wikipedia.org/wiki/Modulo_operation
+
+	euclideanModulo: function ( n, m ) {
+
+		return ( ( n % m ) + m ) % m;
+
+	},
+
+	// Linear mapping from range <a1, a2> to range <b1, b2>
+
+	mapLinear: function ( x, a1, a2, b1, b2 ) {
+
+		return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );
+
+	},
+
+	// https://en.wikipedia.org/wiki/Linear_interpolation
+
+	lerp: function ( x, y, t ) {
+
+		return ( 1 - t ) * x + t * y;
+
+	},
+
+	// http://en.wikipedia.org/wiki/Smoothstep
+
+	smoothstep: function ( x, min, max ) {
+
+		if ( x <= min ) return 0;
+		if ( x >= max ) return 1;
+
+		x = ( x - min ) / ( max - min );
+
+		return x * x * ( 3 - 2 * x );
+
+	},
+
+	smootherstep: function ( x, min, max ) {
+
+		if ( x <= min ) return 0;
+		if ( x >= max ) return 1;
+
+		x = ( x - min ) / ( max - min );
+
+		return x * x * x * ( x * ( x * 6 - 15 ) + 10 );
+
+	},
+
+	// Random integer from <low, high> interval
+
+	randInt: function ( low, high ) {
+
+		return low + Math.floor( Math.random() * ( high - low + 1 ) );
+
+	},
+
+	// Random float from <low, high> interval
+
+	randFloat: function ( low, high ) {
+
+		return low + Math.random() * ( high - low );
+
+	},
+
+	// Random float from <-range/2, range/2> interval
+
+	randFloatSpread: function ( range ) {
+
+		return range * ( 0.5 - Math.random() );
+
+	},
+
+	degToRad: function ( degrees ) {
+
+		return degrees * _Math.DEG2RAD;
+
+	},
+
+	radToDeg: function ( radians ) {
+
+		return radians * _Math.RAD2DEG;
+
+	},
+
+	isPowerOfTwo: function ( value ) {
+
+		return ( value & ( value - 1 ) ) === 0 && value !== 0;
+
+	},
+
+	ceilPowerOfTwo: function ( value ) {
+
+		return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );
+
+	},
+
+	floorPowerOfTwo: function ( value ) {
+
+		return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );
+
+	}
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author philogb / http://blog.thejit.org/
+ * @author egraether / http://egraether.com/
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ */
+
+function Vector2( x, y ) {
+
+	this.x = x || 0;
+	this.y = y || 0;
+
+}
+
+Object.defineProperties( Vector2.prototype, {
+
+	"width": {
+
+		get: function () {
+
+			return this.x;
+
+		},
+
+		set: function ( value ) {
+
+			this.x = value;
+
+		}
+
+	},
+
+	"height": {
+
+		get: function () {
+
+			return this.y;
+
+		},
+
+		set: function ( value ) {
+
+			this.y = value;
+
+		}
+
+	}
+
+} );
+
+Object.assign( Vector2.prototype, {
+
+	isVector2: true,
+
+	set: function ( x, y ) {
+
+		this.x = x;
+		this.y = y;
+
+		return this;
+
+	},
+
+	setScalar: function ( scalar ) {
+
+		this.x = scalar;
+		this.y = scalar;
+
+		return this;
+
+	},
+
+	setX: function ( x ) {
+
+		this.x = x;
+
+		return this;
+
+	},
+
+	setY: function ( y ) {
+
+		this.y = y;
+
+		return this;
+
+	},
+
+	setComponent: function ( index, value ) {
+
+		switch ( index ) {
+
+			case 0: this.x = value; break;
+			case 1: this.y = value; break;
+			default: throw new Error( 'index is out of range: ' + index );
+
+		}
+
+		return this;
+
+	},
+
+	getComponent: function ( index ) {
+
+		switch ( index ) {
+
+			case 0: return this.x;
+			case 1: return this.y;
+			default: throw new Error( 'index is out of range: ' + index );
+
+		}
+
+	},
+
+	clone: function () {
+
+		return new this.constructor( this.x, this.y );
+
+	},
+
+	copy: function ( v ) {
+
+		this.x = v.x;
+		this.y = v.y;
+
+		return this;
+
+	},
+
+	add: function ( v, w ) {
+
+		if ( w !== undefined ) {
+
+			console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
+			return this.addVectors( v, w );
+
+		}
+
+		this.x += v.x;
+		this.y += v.y;
+
+		return this;
+
+	},
+
+	addScalar: function ( s ) {
+
+		this.x += s;
+		this.y += s;
+
+		return this;
+
+	},
+
+	addVectors: function ( a, b ) {
+
+		this.x = a.x + b.x;
+		this.y = a.y + b.y;
+
+		return this;
+
+	},
+
+	addScaledVector: function ( v, s ) {
+
+		this.x += v.x * s;
+		this.y += v.y * s;
+
+		return this;
+
+	},
+
+	sub: function ( v, w ) {
+
+		if ( w !== undefined ) {
+
+			console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
+			return this.subVectors( v, w );
+
+		}
+
+		this.x -= v.x;
+		this.y -= v.y;
+
+		return this;
+
+	},
+
+	subScalar: function ( s ) {
+
+		this.x -= s;
+		this.y -= s;
+
+		return this;
+
+	},
+
+	subVectors: function ( a, b ) {
+
+		this.x = a.x - b.x;
+		this.y = a.y - b.y;
+
+		return this;
+
+	},
+
+	multiply: function ( v ) {
+
+		this.x *= v.x;
+		this.y *= v.y;
+
+		return this;
+
+	},
+
+	multiplyScalar: function ( scalar ) {
+
+		this.x *= scalar;
+		this.y *= scalar;
+
+		return this;
+
+	},
+
+	divide: function ( v ) {
+
+		this.x /= v.x;
+		this.y /= v.y;
+
+		return this;
+
+	},
+
+	divideScalar: function ( scalar ) {
+
+		return this.multiplyScalar( 1 / scalar );
+
+	},
+
+	applyMatrix3: function ( m ) {
+
+		var x = this.x, y = this.y;
+		var e = m.elements;
+
+		this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];
+		this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];
+
+		return this;
+
+	},
+
+	min: function ( v ) {
+
+		this.x = Math.min( this.x, v.x );
+		this.y = Math.min( this.y, v.y );
+
+		return this;
+
+	},
+
+	max: function ( v ) {
+
+		this.x = Math.max( this.x, v.x );
+		this.y = Math.max( this.y, v.y );
+
+		return this;
+
+	},
+
+	clamp: function ( min, max ) {
+
+		// assumes min < max, componentwise
+
+		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
+		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
+
+		return this;
+
+	},
+
+	clampScalar: function () {
+
+		var min = new Vector2();
+		var max = new Vector2();
+
+		return function clampScalar( minVal, maxVal ) {
+
+			min.set( minVal, minVal );
+			max.set( maxVal, maxVal );
+
+			return this.clamp( min, max );
+
+		};
+
+	}(),
+
+	clampLength: function ( min, max ) {
+
+		var length = this.length();
+
+		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
+
+	},
+
+	floor: function () {
+
+		this.x = Math.floor( this.x );
+		this.y = Math.floor( this.y );
+
+		return this;
+
+	},
+
+	ceil: function () {
+
+		this.x = Math.ceil( this.x );
+		this.y = Math.ceil( this.y );
+
+		return this;
+
+	},
+
+	round: function () {
+
+		this.x = Math.round( this.x );
+		this.y = Math.round( this.y );
+
+		return this;
+
+	},
+
+	roundToZero: function () {
+
+		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
+		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
+
+		return this;
+
+	},
+
+	negate: function () {
+
+		this.x = - this.x;
+		this.y = - this.y;
+
+		return this;
+
+	},
+
+	dot: function ( v ) {
+
+		return this.x * v.x + this.y * v.y;
+
+	},
+
+	lengthSq: function () {
+
+		return this.x * this.x + this.y * this.y;
+
+	},
+
+	length: function () {
+
+		return Math.sqrt( this.x * this.x + this.y * this.y );
+
+	},
+
+	manhattanLength: function () {
+
+		return Math.abs( this.x ) + Math.abs( this.y );
+
+	},
+
+	normalize: function () {
+
+		return this.divideScalar( this.length() || 1 );
+
+	},
+
+	angle: function () {
+
+		// computes the angle in radians with respect to the positive x-axis
+
+		var angle = Math.atan2( this.y, this.x );
+
+		if ( angle < 0 ) angle += 2 * Math.PI;
+
+		return angle;
+
+	},
+
+	distanceTo: function ( v ) {
+
+		return Math.sqrt( this.distanceToSquared( v ) );
+
+	},
+
+	distanceToSquared: function ( v ) {
+
+		var dx = this.x - v.x, dy = this.y - v.y;
+		return dx * dx + dy * dy;
+
+	},
+
+	manhattanDistanceTo: function ( v ) {
+
+		return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );
+
+	},
+
+	setLength: function ( length ) {
+
+		return this.normalize().multiplyScalar( length );
+
+	},
+
+	lerp: function ( v, alpha ) {
+
+		this.x += ( v.x - this.x ) * alpha;
+		this.y += ( v.y - this.y ) * alpha;
+
+		return this;
+
+	},
+
+	lerpVectors: function ( v1, v2, alpha ) {
+
+		return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
+
+	},
+
+	equals: function ( v ) {
+
+		return ( ( v.x === this.x ) && ( v.y === this.y ) );
+
+	},
+
+	fromArray: function ( array, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		this.x = array[ offset ];
+		this.y = array[ offset + 1 ];
+
+		return this;
+
+	},
+
+	toArray: function ( array, offset ) {
+
+		if ( array === undefined ) array = [];
+		if ( offset === undefined ) offset = 0;
+
+		array[ offset ] = this.x;
+		array[ offset + 1 ] = this.y;
+
+		return array;
+
+	},
+
+	fromBufferAttribute: function ( attribute, index, offset ) {
+
+		if ( offset !== undefined ) {
+
+			console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );
+
+		}
+
+		this.x = attribute.getX( index );
+		this.y = attribute.getY( index );
+
+		return this;
+
+	},
+
+	rotateAround: function ( center, angle ) {
+
+		var c = Math.cos( angle ), s = Math.sin( angle );
+
+		var x = this.x - center.x;
+		var y = this.y - center.y;
+
+		this.x = x * c - y * s + center.x;
+		this.y = x * s + y * c + center.y;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author supereggbert / http://www.paulbrunt.co.uk/
+ * @author philogb / http://blog.thejit.org/
+ * @author jordi_ros / http://plattsoft.com
+ * @author D1plo1d / http://github.com/D1plo1d
+ * @author alteredq / http://alteredqualia.com/
+ * @author mikael emtinger / http://gomo.se/
+ * @author timknip / http://www.floorplanner.com/
+ * @author bhouston / http://clara.io
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function Matrix4() {
+
+	this.elements = [
+
+		1, 0, 0, 0,
+		0, 1, 0, 0,
+		0, 0, 1, 0,
+		0, 0, 0, 1
+
+	];
+
+	if ( arguments.length > 0 ) {
+
+		console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );
+
+	}
+
+}
+
+Object.assign( Matrix4.prototype, {
+
+	isMatrix4: true,
+
+	set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {
+
+		var te = this.elements;
+
+		te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
+		te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
+		te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
+		te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;
+
+		return this;
+
+	},
+
+	identity: function () {
+
+		this.set(
+
+			1, 0, 0, 0,
+			0, 1, 0, 0,
+			0, 0, 1, 0,
+			0, 0, 0, 1
+
+		);
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new Matrix4().fromArray( this.elements );
+
+	},
+
+	copy: function ( m ) {
+
+		var te = this.elements;
+		var me = m.elements;
+
+		te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];
+		te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];
+		te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];
+		te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];
+
+		return this;
+
+	},
+
+	copyPosition: function ( m ) {
+
+		var te = this.elements, me = m.elements;
+
+		te[ 12 ] = me[ 12 ];
+		te[ 13 ] = me[ 13 ];
+		te[ 14 ] = me[ 14 ];
+
+		return this;
+
+	},
+
+	extractBasis: function ( xAxis, yAxis, zAxis ) {
+
+		xAxis.setFromMatrixColumn( this, 0 );
+		yAxis.setFromMatrixColumn( this, 1 );
+		zAxis.setFromMatrixColumn( this, 2 );
+
+		return this;
+
+	},
+
+	makeBasis: function ( xAxis, yAxis, zAxis ) {
+
+		this.set(
+			xAxis.x, yAxis.x, zAxis.x, 0,
+			xAxis.y, yAxis.y, zAxis.y, 0,
+			xAxis.z, yAxis.z, zAxis.z, 0,
+			0, 0, 0, 1
+		);
+
+		return this;
+
+	},
+
+	extractRotation: function () {
+
+		var v1 = new Vector3();
+
+		return function extractRotation( m ) {
+
+			var te = this.elements;
+			var me = m.elements;
+
+			var scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();
+			var scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();
+			var scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();
+
+			te[ 0 ] = me[ 0 ] * scaleX;
+			te[ 1 ] = me[ 1 ] * scaleX;
+			te[ 2 ] = me[ 2 ] * scaleX;
+
+			te[ 4 ] = me[ 4 ] * scaleY;
+			te[ 5 ] = me[ 5 ] * scaleY;
+			te[ 6 ] = me[ 6 ] * scaleY;
+
+			te[ 8 ] = me[ 8 ] * scaleZ;
+			te[ 9 ] = me[ 9 ] * scaleZ;
+			te[ 10 ] = me[ 10 ] * scaleZ;
+
+			return this;
+
+		};
+
+	}(),
+
+	makeRotationFromEuler: function ( euler ) {
+
+		if ( ! ( euler && euler.isEuler ) ) {
+
+			console.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );
+
+		}
+
+		var te = this.elements;
+
+		var x = euler.x, y = euler.y, z = euler.z;
+		var a = Math.cos( x ), b = Math.sin( x );
+		var c = Math.cos( y ), d = Math.sin( y );
+		var e = Math.cos( z ), f = Math.sin( z );
+
+		if ( euler.order === 'XYZ' ) {
+
+			var ae = a * e, af = a * f, be = b * e, bf = b * f;
+
+			te[ 0 ] = c * e;
+			te[ 4 ] = - c * f;
+			te[ 8 ] = d;
+
+			te[ 1 ] = af + be * d;
+			te[ 5 ] = ae - bf * d;
+			te[ 9 ] = - b * c;
+
+			te[ 2 ] = bf - ae * d;
+			te[ 6 ] = be + af * d;
+			te[ 10 ] = a * c;
+
+		} else if ( euler.order === 'YXZ' ) {
+
+			var ce = c * e, cf = c * f, de = d * e, df = d * f;
+
+			te[ 0 ] = ce + df * b;
+			te[ 4 ] = de * b - cf;
+			te[ 8 ] = a * d;
+
+			te[ 1 ] = a * f;
+			te[ 5 ] = a * e;
+			te[ 9 ] = - b;
+
+			te[ 2 ] = cf * b - de;
+			te[ 6 ] = df + ce * b;
+			te[ 10 ] = a * c;
+
+		} else if ( euler.order === 'ZXY' ) {
+
+			var ce = c * e, cf = c * f, de = d * e, df = d * f;
+
+			te[ 0 ] = ce - df * b;
+			te[ 4 ] = - a * f;
+			te[ 8 ] = de + cf * b;
+
+			te[ 1 ] = cf + de * b;
+			te[ 5 ] = a * e;
+			te[ 9 ] = df - ce * b;
+
+			te[ 2 ] = - a * d;
+			te[ 6 ] = b;
+			te[ 10 ] = a * c;
+
+		} else if ( euler.order === 'ZYX' ) {
+
+			var ae = a * e, af = a * f, be = b * e, bf = b * f;
+
+			te[ 0 ] = c * e;
+			te[ 4 ] = be * d - af;
+			te[ 8 ] = ae * d + bf;
+
+			te[ 1 ] = c * f;
+			te[ 5 ] = bf * d + ae;
+			te[ 9 ] = af * d - be;
+
+			te[ 2 ] = - d;
+			te[ 6 ] = b * c;
+			te[ 10 ] = a * c;
+
+		} else if ( euler.order === 'YZX' ) {
+
+			var ac = a * c, ad = a * d, bc = b * c, bd = b * d;
+
+			te[ 0 ] = c * e;
+			te[ 4 ] = bd - ac * f;
+			te[ 8 ] = bc * f + ad;
+
+			te[ 1 ] = f;
+			te[ 5 ] = a * e;
+			te[ 9 ] = - b * e;
+
+			te[ 2 ] = - d * e;
+			te[ 6 ] = ad * f + bc;
+			te[ 10 ] = ac - bd * f;
+
+		} else if ( euler.order === 'XZY' ) {
+
+			var ac = a * c, ad = a * d, bc = b * c, bd = b * d;
+
+			te[ 0 ] = c * e;
+			te[ 4 ] = - f;
+			te[ 8 ] = d * e;
+
+			te[ 1 ] = ac * f + bd;
+			te[ 5 ] = a * e;
+			te[ 9 ] = ad * f - bc;
+
+			te[ 2 ] = bc * f - ad;
+			te[ 6 ] = b * e;
+			te[ 10 ] = bd * f + ac;
+
+		}
+
+		// last column
+		te[ 3 ] = 0;
+		te[ 7 ] = 0;
+		te[ 11 ] = 0;
+
+		// bottom row
+		te[ 12 ] = 0;
+		te[ 13 ] = 0;
+		te[ 14 ] = 0;
+		te[ 15 ] = 1;
+
+		return this;
+
+	},
+
+	makeRotationFromQuaternion: function ( q ) {
+
+		var te = this.elements;
+
+		var x = q._x, y = q._y, z = q._z, w = q._w;
+		var x2 = x + x, y2 = y + y, z2 = z + z;
+		var xx = x * x2, xy = x * y2, xz = x * z2;
+		var yy = y * y2, yz = y * z2, zz = z * z2;
+		var wx = w * x2, wy = w * y2, wz = w * z2;
+
+		te[ 0 ] = 1 - ( yy + zz );
+		te[ 4 ] = xy - wz;
+		te[ 8 ] = xz + wy;
+
+		te[ 1 ] = xy + wz;
+		te[ 5 ] = 1 - ( xx + zz );
+		te[ 9 ] = yz - wx;
+
+		te[ 2 ] = xz - wy;
+		te[ 6 ] = yz + wx;
+		te[ 10 ] = 1 - ( xx + yy );
+
+		// last column
+		te[ 3 ] = 0;
+		te[ 7 ] = 0;
+		te[ 11 ] = 0;
+
+		// bottom row
+		te[ 12 ] = 0;
+		te[ 13 ] = 0;
+		te[ 14 ] = 0;
+		te[ 15 ] = 1;
+
+		return this;
+
+	},
+
+	lookAt: function () {
+
+		var x = new Vector3();
+		var y = new Vector3();
+		var z = new Vector3();
+
+		return function lookAt( eye, target, up ) {
+
+			var te = this.elements;
+
+			z.subVectors( eye, target );
+
+			if ( z.lengthSq() === 0 ) {
+
+				// eye and target are in the same position
+
+				z.z = 1;
+
+			}
+
+			z.normalize();
+			x.crossVectors( up, z );
+
+			if ( x.lengthSq() === 0 ) {
+
+				// up and z are parallel
+
+				if ( Math.abs( up.z ) === 1 ) {
+
+					z.x += 0.0001;
+
+				} else {
+
+					z.z += 0.0001;
+
+				}
+
+				z.normalize();
+				x.crossVectors( up, z );
+
+			}
+
+			x.normalize();
+			y.crossVectors( z, x );
+
+			te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;
+			te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;
+			te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;
+
+			return this;
+
+		};
+
+	}(),
+
+	multiply: function ( m, n ) {
+
+		if ( n !== undefined ) {
+
+			console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );
+			return this.multiplyMatrices( m, n );
+
+		}
+
+		return this.multiplyMatrices( this, m );
+
+	},
+
+	premultiply: function ( m ) {
+
+		return this.multiplyMatrices( m, this );
+
+	},
+
+	multiplyMatrices: function ( a, b ) {
+
+		var ae = a.elements;
+		var be = b.elements;
+		var te = this.elements;
+
+		var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
+		var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
+		var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
+		var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];
+
+		var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
+		var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
+		var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
+		var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];
+
+		te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
+		te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
+		te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
+		te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
+
+		te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
+		te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
+		te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
+		te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
+
+		te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
+		te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
+		te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
+		te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
+
+		te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
+		te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
+		te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
+		te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
+
+		return this;
+
+	},
+
+	multiplyScalar: function ( s ) {
+
+		var te = this.elements;
+
+		te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
+		te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
+		te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
+		te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;
+
+		return this;
+
+	},
+
+	applyToBufferAttribute: function () {
+
+		var v1 = new Vector3();
+
+		return function applyToBufferAttribute( attribute ) {
+
+			for ( var i = 0, l = attribute.count; i < l; i ++ ) {
+
+				v1.x = attribute.getX( i );
+				v1.y = attribute.getY( i );
+				v1.z = attribute.getZ( i );
+
+				v1.applyMatrix4( this );
+
+				attribute.setXYZ( i, v1.x, v1.y, v1.z );
+
+			}
+
+			return attribute;
+
+		};
+
+	}(),
+
+	determinant: function () {
+
+		var te = this.elements;
+
+		var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
+		var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
+		var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
+		var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];
+
+		//TODO: make this more efficient
+		//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )
+
+		return (
+			n41 * (
+				+ n14 * n23 * n32
+				 - n13 * n24 * n32
+				 - n14 * n22 * n33
+				 + n12 * n24 * n33
+				 + n13 * n22 * n34
+				 - n12 * n23 * n34
+			) +
+			n42 * (
+				+ n11 * n23 * n34
+				 - n11 * n24 * n33
+				 + n14 * n21 * n33
+				 - n13 * n21 * n34
+				 + n13 * n24 * n31
+				 - n14 * n23 * n31
+			) +
+			n43 * (
+				+ n11 * n24 * n32
+				 - n11 * n22 * n34
+				 - n14 * n21 * n32
+				 + n12 * n21 * n34
+				 + n14 * n22 * n31
+				 - n12 * n24 * n31
+			) +
+			n44 * (
+				- n13 * n22 * n31
+				 - n11 * n23 * n32
+				 + n11 * n22 * n33
+				 + n13 * n21 * n32
+				 - n12 * n21 * n33
+				 + n12 * n23 * n31
+			)
+
+		);
+
+	},
+
+	transpose: function () {
+
+		var te = this.elements;
+		var tmp;
+
+		tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
+		tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
+		tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;
+
+		tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
+		tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
+		tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;
+
+		return this;
+
+	},
+
+	setPosition: function ( v ) {
+
+		var te = this.elements;
+
+		te[ 12 ] = v.x;
+		te[ 13 ] = v.y;
+		te[ 14 ] = v.z;
+
+		return this;
+
+	},
+
+	getInverse: function ( m, throwOnDegenerate ) {
+
+		// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
+		var te = this.elements,
+			me = m.elements,
+
+			n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],
+			n12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],
+			n13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],
+			n14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],
+
+			t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
+			t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
+			t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
+			t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
+
+		var det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;
+
+		if ( det === 0 ) {
+
+			var msg = "THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0";
+
+			if ( throwOnDegenerate === true ) {
+
+				throw new Error( msg );
+
+			} else {
+
+				console.warn( msg );
+
+			}
+
+			return this.identity();
+
+		}
+
+		var detInv = 1 / det;
+
+		te[ 0 ] = t11 * detInv;
+		te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;
+		te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;
+		te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;
+
+		te[ 4 ] = t12 * detInv;
+		te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;
+		te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;
+		te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;
+
+		te[ 8 ] = t13 * detInv;
+		te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;
+		te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;
+		te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;
+
+		te[ 12 ] = t14 * detInv;
+		te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;
+		te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;
+		te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;
+
+		return this;
+
+	},
+
+	scale: function ( v ) {
+
+		var te = this.elements;
+		var x = v.x, y = v.y, z = v.z;
+
+		te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
+		te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
+		te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
+		te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;
+
+		return this;
+
+	},
+
+	getMaxScaleOnAxis: function () {
+
+		var te = this.elements;
+
+		var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
+		var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
+		var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];
+
+		return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );
+
+	},
+
+	makeTranslation: function ( x, y, z ) {
+
+		this.set(
+
+			1, 0, 0, x,
+			0, 1, 0, y,
+			0, 0, 1, z,
+			0, 0, 0, 1
+
+		);
+
+		return this;
+
+	},
+
+	makeRotationX: function ( theta ) {
+
+		var c = Math.cos( theta ), s = Math.sin( theta );
+
+		this.set(
+
+			1, 0, 0, 0,
+			0, c, - s, 0,
+			0, s, c, 0,
+			0, 0, 0, 1
+
+		);
+
+		return this;
+
+	},
+
+	makeRotationY: function ( theta ) {
+
+		var c = Math.cos( theta ), s = Math.sin( theta );
+
+		this.set(
+
+			 c, 0, s, 0,
+			 0, 1, 0, 0,
+			- s, 0, c, 0,
+			 0, 0, 0, 1
+
+		);
+
+		return this;
+
+	},
+
+	makeRotationZ: function ( theta ) {
+
+		var c = Math.cos( theta ), s = Math.sin( theta );
+
+		this.set(
+
+			c, - s, 0, 0,
+			s, c, 0, 0,
+			0, 0, 1, 0,
+			0, 0, 0, 1
+
+		);
+
+		return this;
+
+	},
+
+	makeRotationAxis: function ( axis, angle ) {
+
+		// Based on http://www.gamedev.net/reference/articles/article1199.asp
+
+		var c = Math.cos( angle );
+		var s = Math.sin( angle );
+		var t = 1 - c;
+		var x = axis.x, y = axis.y, z = axis.z;
+		var tx = t * x, ty = t * y;
+
+		this.set(
+
+			tx * x + c, tx * y - s * z, tx * z + s * y, 0,
+			tx * y + s * z, ty * y + c, ty * z - s * x, 0,
+			tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
+			0, 0, 0, 1
+
+		);
+
+		 return this;
+
+	},
+
+	makeScale: function ( x, y, z ) {
+
+		this.set(
+
+			x, 0, 0, 0,
+			0, y, 0, 0,
+			0, 0, z, 0,
+			0, 0, 0, 1
+
+		);
+
+		return this;
+
+	},
+
+	makeShear: function ( x, y, z ) {
+
+		this.set(
+
+			1, y, z, 0,
+			x, 1, z, 0,
+			x, y, 1, 0,
+			0, 0, 0, 1
+
+		);
+
+		return this;
+
+	},
+
+	compose: function ( position, quaternion, scale ) {
+
+		this.makeRotationFromQuaternion( quaternion );
+		this.scale( scale );
+		this.setPosition( position );
+
+		return this;
+
+	},
+
+	decompose: function () {
+
+		var vector = new Vector3();
+		var matrix = new Matrix4();
+
+		return function decompose( position, quaternion, scale ) {
+
+			var te = this.elements;
+
+			var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
+			var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
+			var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();
+
+			// if determine is negative, we need to invert one scale
+			var det = this.determinant();
+			if ( det < 0 ) sx = - sx;
+
+			position.x = te[ 12 ];
+			position.y = te[ 13 ];
+			position.z = te[ 14 ];
+
+			// scale the rotation part
+			matrix.copy( this );
+
+			var invSX = 1 / sx;
+			var invSY = 1 / sy;
+			var invSZ = 1 / sz;
+
+			matrix.elements[ 0 ] *= invSX;
+			matrix.elements[ 1 ] *= invSX;
+			matrix.elements[ 2 ] *= invSX;
+
+			matrix.elements[ 4 ] *= invSY;
+			matrix.elements[ 5 ] *= invSY;
+			matrix.elements[ 6 ] *= invSY;
+
+			matrix.elements[ 8 ] *= invSZ;
+			matrix.elements[ 9 ] *= invSZ;
+			matrix.elements[ 10 ] *= invSZ;
+
+			quaternion.setFromRotationMatrix( matrix );
+
+			scale.x = sx;
+			scale.y = sy;
+			scale.z = sz;
+
+			return this;
+
+		};
+
+	}(),
+
+	makePerspective: function ( left, right, top, bottom, near, far ) {
+
+		if ( far === undefined ) {
+
+			console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );
+
+		}
+
+		var te = this.elements;
+		var x = 2 * near / ( right - left );
+		var y = 2 * near / ( top - bottom );
+
+		var a = ( right + left ) / ( right - left );
+		var b = ( top + bottom ) / ( top - bottom );
+		var c = - ( far + near ) / ( far - near );
+		var d = - 2 * far * near / ( far - near );
+
+		te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
+		te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
+		te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
+		te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;
+
+		return this;
+
+	},
+
+	makeOrthographic: function ( left, right, top, bottom, near, far ) {
+
+		var te = this.elements;
+		var w = 1.0 / ( right - left );
+		var h = 1.0 / ( top - bottom );
+		var p = 1.0 / ( far - near );
+
+		var x = ( right + left ) * w;
+		var y = ( top + bottom ) * h;
+		var z = ( far + near ) * p;
+
+		te[ 0 ] = 2 * w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
+		te[ 1 ] = 0;	te[ 5 ] = 2 * h;	te[ 9 ] = 0;	te[ 13 ] = - y;
+		te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;
+		te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;
+
+		return this;
+
+	},
+
+	equals: function ( matrix ) {
+
+		var te = this.elements;
+		var me = matrix.elements;
+
+		for ( var i = 0; i < 16; i ++ ) {
+
+			if ( te[ i ] !== me[ i ] ) return false;
+
+		}
+
+		return true;
+
+	},
+
+	fromArray: function ( array, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		for ( var i = 0; i < 16; i ++ ) {
+
+			this.elements[ i ] = array[ i + offset ];
+
+		}
+
+		return this;
+
+	},
+
+	toArray: function ( array, offset ) {
+
+		if ( array === undefined ) array = [];
+		if ( offset === undefined ) offset = 0;
+
+		var te = this.elements;
+
+		array[ offset ] = te[ 0 ];
+		array[ offset + 1 ] = te[ 1 ];
+		array[ offset + 2 ] = te[ 2 ];
+		array[ offset + 3 ] = te[ 3 ];
+
+		array[ offset + 4 ] = te[ 4 ];
+		array[ offset + 5 ] = te[ 5 ];
+		array[ offset + 6 ] = te[ 6 ];
+		array[ offset + 7 ] = te[ 7 ];
+
+		array[ offset + 8 ] = te[ 8 ];
+		array[ offset + 9 ] = te[ 9 ];
+		array[ offset + 10 ] = te[ 10 ];
+		array[ offset + 11 ] = te[ 11 ];
+
+		array[ offset + 12 ] = te[ 12 ];
+		array[ offset + 13 ] = te[ 13 ];
+		array[ offset + 14 ] = te[ 14 ];
+		array[ offset + 15 ] = te[ 15 ];
+
+		return array;
+
+	}
+
+} );
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ * @author WestLangley / http://github.com/WestLangley
+ * @author bhouston / http://clara.io
+ */
+
+function Quaternion( x, y, z, w ) {
+
+	this._x = x || 0;
+	this._y = y || 0;
+	this._z = z || 0;
+	this._w = ( w !== undefined ) ? w : 1;
+
+}
+
+Object.assign( Quaternion, {
+
+	slerp: function ( qa, qb, qm, t ) {
+
+		return qm.copy( qa ).slerp( qb, t );
+
+	},
+
+	slerpFlat: function ( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {
+
+		// fuzz-free, array-based Quaternion SLERP operation
+
+		var x0 = src0[ srcOffset0 + 0 ],
+			y0 = src0[ srcOffset0 + 1 ],
+			z0 = src0[ srcOffset0 + 2 ],
+			w0 = src0[ srcOffset0 + 3 ],
+
+			x1 = src1[ srcOffset1 + 0 ],
+			y1 = src1[ srcOffset1 + 1 ],
+			z1 = src1[ srcOffset1 + 2 ],
+			w1 = src1[ srcOffset1 + 3 ];
+
+		if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {
+
+			var s = 1 - t,
+
+				cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
+
+				dir = ( cos >= 0 ? 1 : - 1 ),
+				sqrSin = 1 - cos * cos;
+
+			// Skip the Slerp for tiny steps to avoid numeric problems:
+			if ( sqrSin > Number.EPSILON ) {
+
+				var sin = Math.sqrt( sqrSin ),
+					len = Math.atan2( sin, cos * dir );
+
+				s = Math.sin( s * len ) / sin;
+				t = Math.sin( t * len ) / sin;
+
+			}
+
+			var tDir = t * dir;
+
+			x0 = x0 * s + x1 * tDir;
+			y0 = y0 * s + y1 * tDir;
+			z0 = z0 * s + z1 * tDir;
+			w0 = w0 * s + w1 * tDir;
+
+			// Normalize in case we just did a lerp:
+			if ( s === 1 - t ) {
+
+				var f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );
+
+				x0 *= f;
+				y0 *= f;
+				z0 *= f;
+				w0 *= f;
+
+			}
+
+		}
+
+		dst[ dstOffset ] = x0;
+		dst[ dstOffset + 1 ] = y0;
+		dst[ dstOffset + 2 ] = z0;
+		dst[ dstOffset + 3 ] = w0;
+
+	}
+
+} );
+
+Object.defineProperties( Quaternion.prototype, {
+
+	x: {
+
+		get: function () {
+
+			return this._x;
+
+		},
+
+		set: function ( value ) {
+
+			this._x = value;
+			this.onChangeCallback();
+
+		}
+
+	},
+
+	y: {
+
+		get: function () {
+
+			return this._y;
+
+		},
+
+		set: function ( value ) {
+
+			this._y = value;
+			this.onChangeCallback();
+
+		}
+
+	},
+
+	z: {
+
+		get: function () {
+
+			return this._z;
+
+		},
+
+		set: function ( value ) {
+
+			this._z = value;
+			this.onChangeCallback();
+
+		}
+
+	},
+
+	w: {
+
+		get: function () {
+
+			return this._w;
+
+		},
+
+		set: function ( value ) {
+
+			this._w = value;
+			this.onChangeCallback();
+
+		}
+
+	}
+
+} );
+
+Object.assign( Quaternion.prototype, {
+
+	set: function ( x, y, z, w ) {
+
+		this._x = x;
+		this._y = y;
+		this._z = z;
+		this._w = w;
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor( this._x, this._y, this._z, this._w );
+
+	},
+
+	copy: function ( quaternion ) {
+
+		this._x = quaternion.x;
+		this._y = quaternion.y;
+		this._z = quaternion.z;
+		this._w = quaternion.w;
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	setFromEuler: function ( euler, update ) {
+
+		if ( ! ( euler && euler.isEuler ) ) {
+
+			throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );
+
+		}
+
+		var x = euler._x, y = euler._y, z = euler._z, order = euler.order;
+
+		// http://www.mathworks.com/matlabcentral/fileexchange/
+		// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
+		//	content/SpinCalc.m
+
+		var cos = Math.cos;
+		var sin = Math.sin;
+
+		var c1 = cos( x / 2 );
+		var c2 = cos( y / 2 );
+		var c3 = cos( z / 2 );
+
+		var s1 = sin( x / 2 );
+		var s2 = sin( y / 2 );
+		var s3 = sin( z / 2 );
+
+		if ( order === 'XYZ' ) {
+
+			this._x = s1 * c2 * c3 + c1 * s2 * s3;
+			this._y = c1 * s2 * c3 - s1 * c2 * s3;
+			this._z = c1 * c2 * s3 + s1 * s2 * c3;
+			this._w = c1 * c2 * c3 - s1 * s2 * s3;
+
+		} else if ( order === 'YXZ' ) {
+
+			this._x = s1 * c2 * c3 + c1 * s2 * s3;
+			this._y = c1 * s2 * c3 - s1 * c2 * s3;
+			this._z = c1 * c2 * s3 - s1 * s2 * c3;
+			this._w = c1 * c2 * c3 + s1 * s2 * s3;
+
+		} else if ( order === 'ZXY' ) {
+
+			this._x = s1 * c2 * c3 - c1 * s2 * s3;
+			this._y = c1 * s2 * c3 + s1 * c2 * s3;
+			this._z = c1 * c2 * s3 + s1 * s2 * c3;
+			this._w = c1 * c2 * c3 - s1 * s2 * s3;
+
+		} else if ( order === 'ZYX' ) {
+
+			this._x = s1 * c2 * c3 - c1 * s2 * s3;
+			this._y = c1 * s2 * c3 + s1 * c2 * s3;
+			this._z = c1 * c2 * s3 - s1 * s2 * c3;
+			this._w = c1 * c2 * c3 + s1 * s2 * s3;
+
+		} else if ( order === 'YZX' ) {
+
+			this._x = s1 * c2 * c3 + c1 * s2 * s3;
+			this._y = c1 * s2 * c3 + s1 * c2 * s3;
+			this._z = c1 * c2 * s3 - s1 * s2 * c3;
+			this._w = c1 * c2 * c3 - s1 * s2 * s3;
+
+		} else if ( order === 'XZY' ) {
+
+			this._x = s1 * c2 * c3 - c1 * s2 * s3;
+			this._y = c1 * s2 * c3 - s1 * c2 * s3;
+			this._z = c1 * c2 * s3 + s1 * s2 * c3;
+			this._w = c1 * c2 * c3 + s1 * s2 * s3;
+
+		}
+
+		if ( update !== false ) this.onChangeCallback();
+
+		return this;
+
+	},
+
+	setFromAxisAngle: function ( axis, angle ) {
+
+		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
+
+		// assumes axis is normalized
+
+		var halfAngle = angle / 2, s = Math.sin( halfAngle );
+
+		this._x = axis.x * s;
+		this._y = axis.y * s;
+		this._z = axis.z * s;
+		this._w = Math.cos( halfAngle );
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	setFromRotationMatrix: function ( m ) {
+
+		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
+
+		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+		var te = m.elements,
+
+			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
+			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
+			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],
+
+			trace = m11 + m22 + m33,
+			s;
+
+		if ( trace > 0 ) {
+
+			s = 0.5 / Math.sqrt( trace + 1.0 );
+
+			this._w = 0.25 / s;
+			this._x = ( m32 - m23 ) * s;
+			this._y = ( m13 - m31 ) * s;
+			this._z = ( m21 - m12 ) * s;
+
+		} else if ( m11 > m22 && m11 > m33 ) {
+
+			s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );
+
+			this._w = ( m32 - m23 ) / s;
+			this._x = 0.25 * s;
+			this._y = ( m12 + m21 ) / s;
+			this._z = ( m13 + m31 ) / s;
+
+		} else if ( m22 > m33 ) {
+
+			s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );
+
+			this._w = ( m13 - m31 ) / s;
+			this._x = ( m12 + m21 ) / s;
+			this._y = 0.25 * s;
+			this._z = ( m23 + m32 ) / s;
+
+		} else {
+
+			s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );
+
+			this._w = ( m21 - m12 ) / s;
+			this._x = ( m13 + m31 ) / s;
+			this._y = ( m23 + m32 ) / s;
+			this._z = 0.25 * s;
+
+		}
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	setFromUnitVectors: function () {
+
+		// assumes direction vectors vFrom and vTo are normalized
+
+		var v1 = new Vector3();
+		var r;
+
+		var EPS = 0.000001;
+
+		return function setFromUnitVectors( vFrom, vTo ) {
+
+			if ( v1 === undefined ) v1 = new Vector3();
+
+			r = vFrom.dot( vTo ) + 1;
+
+			if ( r < EPS ) {
+
+				r = 0;
+
+				if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {
+
+					v1.set( - vFrom.y, vFrom.x, 0 );
+
+				} else {
+
+					v1.set( 0, - vFrom.z, vFrom.y );
+
+				}
+
+			} else {
+
+				v1.crossVectors( vFrom, vTo );
+
+			}
+
+			this._x = v1.x;
+			this._y = v1.y;
+			this._z = v1.z;
+			this._w = r;
+
+			return this.normalize();
+
+		};
+
+	}(),
+
+	inverse: function () {
+
+		return this.conjugate().normalize();
+
+	},
+
+	conjugate: function () {
+
+		this._x *= - 1;
+		this._y *= - 1;
+		this._z *= - 1;
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	dot: function ( v ) {
+
+		return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;
+
+	},
+
+	lengthSq: function () {
+
+		return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
+
+	},
+
+	length: function () {
+
+		return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );
+
+	},
+
+	normalize: function () {
+
+		var l = this.length();
+
+		if ( l === 0 ) {
+
+			this._x = 0;
+			this._y = 0;
+			this._z = 0;
+			this._w = 1;
+
+		} else {
+
+			l = 1 / l;
+
+			this._x = this._x * l;
+			this._y = this._y * l;
+			this._z = this._z * l;
+			this._w = this._w * l;
+
+		}
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	multiply: function ( q, p ) {
+
+		if ( p !== undefined ) {
+
+			console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
+			return this.multiplyQuaternions( q, p );
+
+		}
+
+		return this.multiplyQuaternions( this, q );
+
+	},
+
+	premultiply: function ( q ) {
+
+		return this.multiplyQuaternions( q, this );
+
+	},
+
+	multiplyQuaternions: function ( a, b ) {
+
+		// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
+
+		var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
+		var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;
+
+		this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
+		this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
+		this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
+		this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	slerp: function ( qb, t ) {
+
+		if ( t === 0 ) return this;
+		if ( t === 1 ) return this.copy( qb );
+
+		var x = this._x, y = this._y, z = this._z, w = this._w;
+
+		// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
+
+		var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;
+
+		if ( cosHalfTheta < 0 ) {
+
+			this._w = - qb._w;
+			this._x = - qb._x;
+			this._y = - qb._y;
+			this._z = - qb._z;
+
+			cosHalfTheta = - cosHalfTheta;
+
+		} else {
+
+			this.copy( qb );
+
+		}
+
+		if ( cosHalfTheta >= 1.0 ) {
+
+			this._w = w;
+			this._x = x;
+			this._y = y;
+			this._z = z;
+
+			return this;
+
+		}
+
+		var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );
+
+		if ( Math.abs( sinHalfTheta ) < 0.001 ) {
+
+			this._w = 0.5 * ( w + this._w );
+			this._x = 0.5 * ( x + this._x );
+			this._y = 0.5 * ( y + this._y );
+			this._z = 0.5 * ( z + this._z );
+
+			return this;
+
+		}
+
+		var halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
+		var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
+			ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;
+
+		this._w = ( w * ratioA + this._w * ratioB );
+		this._x = ( x * ratioA + this._x * ratioB );
+		this._y = ( y * ratioA + this._y * ratioB );
+		this._z = ( z * ratioA + this._z * ratioB );
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	equals: function ( quaternion ) {
+
+		return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );
+
+	},
+
+	fromArray: function ( array, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		this._x = array[ offset ];
+		this._y = array[ offset + 1 ];
+		this._z = array[ offset + 2 ];
+		this._w = array[ offset + 3 ];
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	toArray: function ( array, offset ) {
+
+		if ( array === undefined ) array = [];
+		if ( offset === undefined ) offset = 0;
+
+		array[ offset ] = this._x;
+		array[ offset + 1 ] = this._y;
+		array[ offset + 2 ] = this._z;
+		array[ offset + 3 ] = this._w;
+
+		return array;
+
+	},
+
+	onChange: function ( callback ) {
+
+		this.onChangeCallback = callback;
+
+		return this;
+
+	},
+
+	onChangeCallback: function () {}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author kile / http://kile.stravaganza.org/
+ * @author philogb / http://blog.thejit.org/
+ * @author mikael emtinger / http://gomo.se/
+ * @author egraether / http://egraether.com/
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function Vector3( x, y, z ) {
+
+	this.x = x || 0;
+	this.y = y || 0;
+	this.z = z || 0;
+
+}
+
+Object.assign( Vector3.prototype, {
+
+	isVector3: true,
+
+	set: function ( x, y, z ) {
+
+		this.x = x;
+		this.y = y;
+		this.z = z;
+
+		return this;
+
+	},
+
+	setScalar: function ( scalar ) {
+
+		this.x = scalar;
+		this.y = scalar;
+		this.z = scalar;
+
+		return this;
+
+	},
+
+	setX: function ( x ) {
+
+		this.x = x;
+
+		return this;
+
+	},
+
+	setY: function ( y ) {
+
+		this.y = y;
+
+		return this;
+
+	},
+
+	setZ: function ( z ) {
+
+		this.z = z;
+
+		return this;
+
+	},
+
+	setComponent: function ( index, value ) {
+
+		switch ( index ) {
+
+			case 0: this.x = value; break;
+			case 1: this.y = value; break;
+			case 2: this.z = value; break;
+			default: throw new Error( 'index is out of range: ' + index );
+
+		}
+
+		return this;
+
+	},
+
+	getComponent: function ( index ) {
+
+		switch ( index ) {
+
+			case 0: return this.x;
+			case 1: return this.y;
+			case 2: return this.z;
+			default: throw new Error( 'index is out of range: ' + index );
+
+		}
+
+	},
+
+	clone: function () {
+
+		return new this.constructor( this.x, this.y, this.z );
+
+	},
+
+	copy: function ( v ) {
+
+		this.x = v.x;
+		this.y = v.y;
+		this.z = v.z;
+
+		return this;
+
+	},
+
+	add: function ( v, w ) {
+
+		if ( w !== undefined ) {
+
+			console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
+			return this.addVectors( v, w );
+
+		}
+
+		this.x += v.x;
+		this.y += v.y;
+		this.z += v.z;
+
+		return this;
+
+	},
+
+	addScalar: function ( s ) {
+
+		this.x += s;
+		this.y += s;
+		this.z += s;
+
+		return this;
+
+	},
+
+	addVectors: function ( a, b ) {
+
+		this.x = a.x + b.x;
+		this.y = a.y + b.y;
+		this.z = a.z + b.z;
+
+		return this;
+
+	},
+
+	addScaledVector: function ( v, s ) {
+
+		this.x += v.x * s;
+		this.y += v.y * s;
+		this.z += v.z * s;
+
+		return this;
+
+	},
+
+	sub: function ( v, w ) {
+
+		if ( w !== undefined ) {
+
+			console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
+			return this.subVectors( v, w );
+
+		}
+
+		this.x -= v.x;
+		this.y -= v.y;
+		this.z -= v.z;
+
+		return this;
+
+	},
+
+	subScalar: function ( s ) {
+
+		this.x -= s;
+		this.y -= s;
+		this.z -= s;
+
+		return this;
+
+	},
+
+	subVectors: function ( a, b ) {
+
+		this.x = a.x - b.x;
+		this.y = a.y - b.y;
+		this.z = a.z - b.z;
+
+		return this;
+
+	},
+
+	multiply: function ( v, w ) {
+
+		if ( w !== undefined ) {
+
+			console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
+			return this.multiplyVectors( v, w );
+
+		}
+
+		this.x *= v.x;
+		this.y *= v.y;
+		this.z *= v.z;
+
+		return this;
+
+	},
+
+	multiplyScalar: function ( scalar ) {
+
+		this.x *= scalar;
+		this.y *= scalar;
+		this.z *= scalar;
+
+		return this;
+
+	},
+
+	multiplyVectors: function ( a, b ) {
+
+		this.x = a.x * b.x;
+		this.y = a.y * b.y;
+		this.z = a.z * b.z;
+
+		return this;
+
+	},
+
+	applyEuler: function () {
+
+		var quaternion = new Quaternion();
+
+		return function applyEuler( euler ) {
+
+			if ( ! ( euler && euler.isEuler ) ) {
+
+				console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );
+
+			}
+
+			return this.applyQuaternion( quaternion.setFromEuler( euler ) );
+
+		};
+
+	}(),
+
+	applyAxisAngle: function () {
+
+		var quaternion = new Quaternion();
+
+		return function applyAxisAngle( axis, angle ) {
+
+			return this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );
+
+		};
+
+	}(),
+
+	applyMatrix3: function ( m ) {
+
+		var x = this.x, y = this.y, z = this.z;
+		var e = m.elements;
+
+		this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
+		this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
+		this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;
+
+		return this;
+
+	},
+
+	applyMatrix4: function ( m ) {
+
+		var x = this.x, y = this.y, z = this.z;
+		var e = m.elements;
+
+		var w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );
+
+		this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;
+		this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;
+		this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;
+
+		return this;
+
+	},
+
+	applyQuaternion: function ( q ) {
+
+		var x = this.x, y = this.y, z = this.z;
+		var qx = q.x, qy = q.y, qz = q.z, qw = q.w;
+
+		// calculate quat * vector
+
+		var ix = qw * x + qy * z - qz * y;
+		var iy = qw * y + qz * x - qx * z;
+		var iz = qw * z + qx * y - qy * x;
+		var iw = - qx * x - qy * y - qz * z;
+
+		// calculate result * inverse quat
+
+		this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
+		this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
+		this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;
+
+		return this;
+
+	},
+
+	project: function () {
+
+		var matrix = new Matrix4();
+
+		return function project( camera ) {
+
+			matrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) );
+			return this.applyMatrix4( matrix );
+
+		};
+
+	}(),
+
+	unproject: function () {
+
+		var matrix = new Matrix4();
+
+		return function unproject( camera ) {
+
+			matrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) );
+			return this.applyMatrix4( matrix );
+
+		};
+
+	}(),
+
+	transformDirection: function ( m ) {
+
+		// input: THREE.Matrix4 affine matrix
+		// vector interpreted as a direction
+
+		var x = this.x, y = this.y, z = this.z;
+		var e = m.elements;
+
+		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;
+		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;
+		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;
+
+		return this.normalize();
+
+	},
+
+	divide: function ( v ) {
+
+		this.x /= v.x;
+		this.y /= v.y;
+		this.z /= v.z;
+
+		return this;
+
+	},
+
+	divideScalar: function ( scalar ) {
+
+		return this.multiplyScalar( 1 / scalar );
+
+	},
+
+	min: function ( v ) {
+
+		this.x = Math.min( this.x, v.x );
+		this.y = Math.min( this.y, v.y );
+		this.z = Math.min( this.z, v.z );
+
+		return this;
+
+	},
+
+	max: function ( v ) {
+
+		this.x = Math.max( this.x, v.x );
+		this.y = Math.max( this.y, v.y );
+		this.z = Math.max( this.z, v.z );
+
+		return this;
+
+	},
+
+	clamp: function ( min, max ) {
+
+		// assumes min < max, componentwise
+
+		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
+		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
+		this.z = Math.max( min.z, Math.min( max.z, this.z ) );
+
+		return this;
+
+	},
+
+	clampScalar: function () {
+
+		var min = new Vector3();
+		var max = new Vector3();
+
+		return function clampScalar( minVal, maxVal ) {
+
+			min.set( minVal, minVal, minVal );
+			max.set( maxVal, maxVal, maxVal );
+
+			return this.clamp( min, max );
+
+		};
+
+	}(),
+
+	clampLength: function ( min, max ) {
+
+		var length = this.length();
+
+		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
+
+	},
+
+	floor: function () {
+
+		this.x = Math.floor( this.x );
+		this.y = Math.floor( this.y );
+		this.z = Math.floor( this.z );
+
+		return this;
+
+	},
+
+	ceil: function () {
+
+		this.x = Math.ceil( this.x );
+		this.y = Math.ceil( this.y );
+		this.z = Math.ceil( this.z );
+
+		return this;
+
+	},
+
+	round: function () {
+
+		this.x = Math.round( this.x );
+		this.y = Math.round( this.y );
+		this.z = Math.round( this.z );
+
+		return this;
+
+	},
+
+	roundToZero: function () {
+
+		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
+		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
+		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
+
+		return this;
+
+	},
+
+	negate: function () {
+
+		this.x = - this.x;
+		this.y = - this.y;
+		this.z = - this.z;
+
+		return this;
+
+	},
+
+	dot: function ( v ) {
+
+		return this.x * v.x + this.y * v.y + this.z * v.z;
+
+	},
+
+	// TODO lengthSquared?
+
+	lengthSq: function () {
+
+		return this.x * this.x + this.y * this.y + this.z * this.z;
+
+	},
+
+	length: function () {
+
+		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );
+
+	},
+
+	manhattanLength: function () {
+
+		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );
+
+	},
+
+	normalize: function () {
+
+		return this.divideScalar( this.length() || 1 );
+
+	},
+
+	setLength: function ( length ) {
+
+		return this.normalize().multiplyScalar( length );
+
+	},
+
+	lerp: function ( v, alpha ) {
+
+		this.x += ( v.x - this.x ) * alpha;
+		this.y += ( v.y - this.y ) * alpha;
+		this.z += ( v.z - this.z ) * alpha;
+
+		return this;
+
+	},
+
+	lerpVectors: function ( v1, v2, alpha ) {
+
+		return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
+
+	},
+
+	cross: function ( v, w ) {
+
+		if ( w !== undefined ) {
+
+			console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
+			return this.crossVectors( v, w );
+
+		}
+
+		return this.crossVectors( this, v );
+
+	},
+
+	crossVectors: function ( a, b ) {
+
+		var ax = a.x, ay = a.y, az = a.z;
+		var bx = b.x, by = b.y, bz = b.z;
+
+		this.x = ay * bz - az * by;
+		this.y = az * bx - ax * bz;
+		this.z = ax * by - ay * bx;
+
+		return this;
+
+	},
+
+	projectOnVector: function ( vector ) {
+
+		var scalar = vector.dot( this ) / vector.lengthSq();
+
+		return this.copy( vector ).multiplyScalar( scalar );
+
+	},
+
+	projectOnPlane: function () {
+
+		var v1 = new Vector3();
+
+		return function projectOnPlane( planeNormal ) {
+
+			v1.copy( this ).projectOnVector( planeNormal );
+
+			return this.sub( v1 );
+
+		};
+
+	}(),
+
+	reflect: function () {
+
+		// reflect incident vector off plane orthogonal to normal
+		// normal is assumed to have unit length
+
+		var v1 = new Vector3();
+
+		return function reflect( normal ) {
+
+			return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );
+
+		};
+
+	}(),
+
+	angleTo: function ( v ) {
+
+		var theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );
+
+		// clamp, to handle numerical problems
+
+		return Math.acos( _Math.clamp( theta, - 1, 1 ) );
+
+	},
+
+	distanceTo: function ( v ) {
+
+		return Math.sqrt( this.distanceToSquared( v ) );
+
+	},
+
+	distanceToSquared: function ( v ) {
+
+		var dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;
+
+		return dx * dx + dy * dy + dz * dz;
+
+	},
+
+	manhattanDistanceTo: function ( v ) {
+
+		return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );
+
+	},
+
+	setFromSpherical: function ( s ) {
+
+		var sinPhiRadius = Math.sin( s.phi ) * s.radius;
+
+		this.x = sinPhiRadius * Math.sin( s.theta );
+		this.y = Math.cos( s.phi ) * s.radius;
+		this.z = sinPhiRadius * Math.cos( s.theta );
+
+		return this;
+
+	},
+
+	setFromCylindrical: function ( c ) {
+
+		this.x = c.radius * Math.sin( c.theta );
+		this.y = c.y;
+		this.z = c.radius * Math.cos( c.theta );
+
+		return this;
+
+	},
+
+	setFromMatrixPosition: function ( m ) {
+
+		var e = m.elements;
+
+		this.x = e[ 12 ];
+		this.y = e[ 13 ];
+		this.z = e[ 14 ];
+
+		return this;
+
+	},
+
+	setFromMatrixScale: function ( m ) {
+
+		var sx = this.setFromMatrixColumn( m, 0 ).length();
+		var sy = this.setFromMatrixColumn( m, 1 ).length();
+		var sz = this.setFromMatrixColumn( m, 2 ).length();
+
+		this.x = sx;
+		this.y = sy;
+		this.z = sz;
+
+		return this;
+
+	},
+
+	setFromMatrixColumn: function ( m, index ) {
+
+		return this.fromArray( m.elements, index * 4 );
+
+	},
+
+	equals: function ( v ) {
+
+		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );
+
+	},
+
+	fromArray: function ( array, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		this.x = array[ offset ];
+		this.y = array[ offset + 1 ];
+		this.z = array[ offset + 2 ];
+
+		return this;
+
+	},
+
+	toArray: function ( array, offset ) {
+
+		if ( array === undefined ) array = [];
+		if ( offset === undefined ) offset = 0;
+
+		array[ offset ] = this.x;
+		array[ offset + 1 ] = this.y;
+		array[ offset + 2 ] = this.z;
+
+		return array;
+
+	},
+
+	fromBufferAttribute: function ( attribute, index, offset ) {
+
+		if ( offset !== undefined ) {
+
+			console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );
+
+		}
+
+		this.x = attribute.getX( index );
+		this.y = attribute.getY( index );
+		this.z = attribute.getZ( index );
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author WestLangley / http://github.com/WestLangley
+ * @author bhouston / http://clara.io
+ * @author tschw
+ */
+
+function Matrix3() {
+
+	this.elements = [
+
+		1, 0, 0,
+		0, 1, 0,
+		0, 0, 1
+
+	];
+
+	if ( arguments.length > 0 ) {
+
+		console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );
+
+	}
+
+}
+
+Object.assign( Matrix3.prototype, {
+
+	isMatrix3: true,
+
+	set: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {
+
+		var te = this.elements;
+
+		te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;
+		te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;
+		te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;
+
+		return this;
+
+	},
+
+	identity: function () {
+
+		this.set(
+
+			1, 0, 0,
+			0, 1, 0,
+			0, 0, 1
+
+		);
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().fromArray( this.elements );
+
+	},
+
+	copy: function ( m ) {
+
+		var te = this.elements;
+		var me = m.elements;
+
+		te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];
+		te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];
+		te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];
+
+		return this;
+
+	},
+
+	setFromMatrix4: function ( m ) {
+
+		var me = m.elements;
+
+		this.set(
+
+			me[ 0 ], me[ 4 ], me[ 8 ],
+			me[ 1 ], me[ 5 ], me[ 9 ],
+			me[ 2 ], me[ 6 ], me[ 10 ]
+
+		);
+
+		return this;
+
+	},
+
+	applyToBufferAttribute: function () {
+
+		var v1 = new Vector3();
+
+		return function applyToBufferAttribute( attribute ) {
+
+			for ( var i = 0, l = attribute.count; i < l; i ++ ) {
+
+				v1.x = attribute.getX( i );
+				v1.y = attribute.getY( i );
+				v1.z = attribute.getZ( i );
+
+				v1.applyMatrix3( this );
+
+				attribute.setXYZ( i, v1.x, v1.y, v1.z );
+
+			}
+
+			return attribute;
+
+		};
+
+	}(),
+
+	multiply: function ( m ) {
+
+		return this.multiplyMatrices( this, m );
+
+	},
+
+	premultiply: function ( m ) {
+
+		return this.multiplyMatrices( m, this );
+
+	},
+
+	multiplyMatrices: function ( a, b ) {
+
+		var ae = a.elements;
+		var be = b.elements;
+		var te = this.elements;
+
+		var a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];
+		var a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];
+		var a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];
+
+		var b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];
+		var b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];
+		var b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];
+
+		te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;
+		te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;
+		te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;
+
+		te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;
+		te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;
+		te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;
+
+		te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;
+		te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;
+		te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;
+
+		return this;
+
+	},
+
+	multiplyScalar: function ( s ) {
+
+		var te = this.elements;
+
+		te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
+		te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
+		te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;
+
+		return this;
+
+	},
+
+	determinant: function () {
+
+		var te = this.elements;
+
+		var a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
+			d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
+			g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];
+
+		return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;
+
+	},
+
+	getInverse: function ( matrix, throwOnDegenerate ) {
+
+		if ( matrix && matrix.isMatrix4 ) {
+
+			console.error( "THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument." );
+
+		}
+
+		var me = matrix.elements,
+			te = this.elements,
+
+			n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],
+			n12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],
+			n13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],
+
+			t11 = n33 * n22 - n32 * n23,
+			t12 = n32 * n13 - n33 * n12,
+			t13 = n23 * n12 - n22 * n13,
+
+			det = n11 * t11 + n21 * t12 + n31 * t13;
+
+		if ( det === 0 ) {
+
+			var msg = "THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0";
+
+			if ( throwOnDegenerate === true ) {
+
+				throw new Error( msg );
+
+			} else {
+
+				console.warn( msg );
+
+			}
+
+			return this.identity();
+
+		}
+
+		var detInv = 1 / det;
+
+		te[ 0 ] = t11 * detInv;
+		te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;
+		te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;
+
+		te[ 3 ] = t12 * detInv;
+		te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;
+		te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;
+
+		te[ 6 ] = t13 * detInv;
+		te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;
+		te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;
+
+		return this;
+
+	},
+
+	transpose: function () {
+
+		var tmp, m = this.elements;
+
+		tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
+		tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
+		tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;
+
+		return this;
+
+	},
+
+	getNormalMatrix: function ( matrix4 ) {
+
+		return this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();
+
+	},
+
+	transposeIntoArray: function ( r ) {
+
+		var m = this.elements;
+
+		r[ 0 ] = m[ 0 ];
+		r[ 1 ] = m[ 3 ];
+		r[ 2 ] = m[ 6 ];
+		r[ 3 ] = m[ 1 ];
+		r[ 4 ] = m[ 4 ];
+		r[ 5 ] = m[ 7 ];
+		r[ 6 ] = m[ 2 ];
+		r[ 7 ] = m[ 5 ];
+		r[ 8 ] = m[ 8 ];
+
+		return this;
+
+	},
+
+	setUvTransform: function ( tx, ty, sx, sy, rotation, cx, cy ) {
+
+		var c = Math.cos( rotation );
+		var s = Math.sin( rotation );
+
+		this.set(
+			sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,
+			- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,
+			0, 0, 1
+		);
+
+	},
+
+	scale: function ( sx, sy ) {
+
+		var te = this.elements;
+
+		te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;
+		te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;
+
+		return this;
+
+	},
+
+	rotate: function ( theta ) {
+
+		var c = Math.cos( theta );
+		var s = Math.sin( theta );
+
+		var te = this.elements;
+
+		var a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];
+		var a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];
+
+		te[ 0 ] = c * a11 + s * a21;
+		te[ 3 ] = c * a12 + s * a22;
+		te[ 6 ] = c * a13 + s * a23;
+
+		te[ 1 ] = - s * a11 + c * a21;
+		te[ 4 ] = - s * a12 + c * a22;
+		te[ 7 ] = - s * a13 + c * a23;
+
+		return this;
+
+	},
+
+	translate: function ( tx, ty ) {
+
+		var te = this.elements;
+
+		te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];
+		te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];
+
+		return this;
+
+	},
+
+	equals: function ( matrix ) {
+
+		var te = this.elements;
+		var me = matrix.elements;
+
+		for ( var i = 0; i < 9; i ++ ) {
+
+			if ( te[ i ] !== me[ i ] ) return false;
+
+		}
+
+		return true;
+
+	},
+
+	fromArray: function ( array, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		for ( var i = 0; i < 9; i ++ ) {
+
+			this.elements[ i ] = array[ i + offset ];
+
+		}
+
+		return this;
+
+	},
+
+	toArray: function ( array, offset ) {
+
+		if ( array === undefined ) array = [];
+		if ( offset === undefined ) offset = 0;
+
+		var te = this.elements;
+
+		array[ offset ] = te[ 0 ];
+		array[ offset + 1 ] = te[ 1 ];
+		array[ offset + 2 ] = te[ 2 ];
+
+		array[ offset + 3 ] = te[ 3 ];
+		array[ offset + 4 ] = te[ 4 ];
+		array[ offset + 5 ] = te[ 5 ];
+
+		array[ offset + 6 ] = te[ 6 ];
+		array[ offset + 7 ] = te[ 7 ];
+		array[ offset + 8 ] = te[ 8 ];
+
+		return array;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ * @author szimek / https://github.com/szimek/
+ */
+
+var textureId = 0;
+
+function Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {
+
+	Object.defineProperty( this, 'id', { value: textureId ++ } );
+
+	this.uuid = _Math.generateUUID();
+
+	this.name = '';
+
+	this.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;
+	this.mipmaps = [];
+
+	this.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;
+
+	this.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;
+	this.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;
+
+	this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
+	this.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;
+
+	this.anisotropy = anisotropy !== undefined ? anisotropy : 1;
+
+	this.format = format !== undefined ? format : RGBAFormat;
+	this.type = type !== undefined ? type : UnsignedByteType;
+
+	this.offset = new Vector2( 0, 0 );
+	this.repeat = new Vector2( 1, 1 );
+	this.center = new Vector2( 0, 0 );
+	this.rotation = 0;
+
+	this.matrixAutoUpdate = true;
+	this.matrix = new Matrix3();
+
+	this.generateMipmaps = true;
+	this.premultiplyAlpha = false;
+	this.flipY = true;
+	this.unpackAlignment = 4;	// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)
+
+	// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
+	//
+	// Also changing the encoding after already used by a Material will not automatically make the Material
+	// update.  You need to explicitly call Material.needsUpdate to trigger it to recompile.
+	this.encoding = encoding !== undefined ? encoding : LinearEncoding;
+
+	this.version = 0;
+	this.onUpdate = null;
+
+}
+
+Texture.DEFAULT_IMAGE = undefined;
+Texture.DEFAULT_MAPPING = UVMapping;
+
+Object.defineProperty( Texture.prototype, "needsUpdate", {
+
+	set: function ( value ) {
+
+		if ( value === true ) this.version ++;
+
+	}
+
+} );
+
+Object.assign( Texture.prototype, EventDispatcher.prototype, {
+
+	constructor: Texture,
+
+	isTexture: true,
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( source ) {
+
+		this.name = source.name;
+
+		this.image = source.image;
+		this.mipmaps = source.mipmaps.slice( 0 );
+
+		this.mapping = source.mapping;
+
+		this.wrapS = source.wrapS;
+		this.wrapT = source.wrapT;
+
+		this.magFilter = source.magFilter;
+		this.minFilter = source.minFilter;
+
+		this.anisotropy = source.anisotropy;
+
+		this.format = source.format;
+		this.type = source.type;
+
+		this.offset.copy( source.offset );
+		this.repeat.copy( source.repeat );
+		this.center.copy( source.center );
+		this.rotation = source.rotation;
+
+		this.matrixAutoUpdate = source.matrixAutoUpdate;
+		this.matrix.copy( source.matrix );
+
+		this.generateMipmaps = source.generateMipmaps;
+		this.premultiplyAlpha = source.premultiplyAlpha;
+		this.flipY = source.flipY;
+		this.unpackAlignment = source.unpackAlignment;
+		this.encoding = source.encoding;
+
+		return this;
+
+	},
+
+	toJSON: function ( meta ) {
+
+		var isRootObject = ( meta === undefined || typeof meta === 'string' );
+
+		if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {
+
+			return meta.textures[ this.uuid ];
+
+		}
+
+		function getDataURL( image ) {
+
+			var canvas;
+
+			if ( image instanceof HTMLCanvasElement ) {
+
+				canvas = image;
+
+			} else {
+
+				canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
+				canvas.width = image.width;
+				canvas.height = image.height;
+
+				var context = canvas.getContext( '2d' );
+
+				if ( image instanceof ImageData ) {
+
+					context.putImageData( image, 0, 0 );
+
+				} else {
+
+					context.drawImage( image, 0, 0, image.width, image.height );
+
+				}
+
+			}
+
+			if ( canvas.width > 2048 || canvas.height > 2048 ) {
+
+				return canvas.toDataURL( 'image/jpeg', 0.6 );
+
+			} else {
+
+				return canvas.toDataURL( 'image/png' );
+
+			}
+
+		}
+
+		var output = {
+			metadata: {
+				version: 4.5,
+				type: 'Texture',
+				generator: 'Texture.toJSON'
+			},
+
+			uuid: this.uuid,
+			name: this.name,
+
+			mapping: this.mapping,
+
+			repeat: [ this.repeat.x, this.repeat.y ],
+			offset: [ this.offset.x, this.offset.y ],
+			center: [ this.center.x, this.center.y ],
+			rotation: this.rotation,
+
+			wrap: [ this.wrapS, this.wrapT ],
+
+			minFilter: this.minFilter,
+			magFilter: this.magFilter,
+			anisotropy: this.anisotropy,
+
+			flipY: this.flipY
+		};
+
+		if ( this.image !== undefined ) {
+
+			// TODO: Move to THREE.Image
+
+			var image = this.image;
+
+			if ( image.uuid === undefined ) {
+
+				image.uuid = _Math.generateUUID(); // UGH
+
+			}
+
+			if ( ! isRootObject && meta.images[ image.uuid ] === undefined ) {
+
+				meta.images[ image.uuid ] = {
+					uuid: image.uuid,
+					url: getDataURL( image )
+				};
+
+			}
+
+			output.image = image.uuid;
+
+		}
+
+		if ( ! isRootObject ) {
+
+			meta.textures[ this.uuid ] = output;
+
+		}
+
+		return output;
+
+	},
+
+	dispose: function () {
+
+		this.dispatchEvent( { type: 'dispose' } );
+
+	},
+
+	transformUv: function ( uv ) {
+
+		if ( this.mapping !== UVMapping ) return;
+
+		uv.applyMatrix3( this.matrix );
+
+		if ( uv.x < 0 || uv.x > 1 ) {
+
+			switch ( this.wrapS ) {
+
+				case RepeatWrapping:
+
+					uv.x = uv.x - Math.floor( uv.x );
+					break;
+
+				case ClampToEdgeWrapping:
+
+					uv.x = uv.x < 0 ? 0 : 1;
+					break;
+
+				case MirroredRepeatWrapping:
+
+					if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {
+
+						uv.x = Math.ceil( uv.x ) - uv.x;
+
+					} else {
+
+						uv.x = uv.x - Math.floor( uv.x );
+
+					}
+					break;
+
+			}
+
+		}
+
+		if ( uv.y < 0 || uv.y > 1 ) {
+
+			switch ( this.wrapT ) {
+
+				case RepeatWrapping:
+
+					uv.y = uv.y - Math.floor( uv.y );
+					break;
+
+				case ClampToEdgeWrapping:
+
+					uv.y = uv.y < 0 ? 0 : 1;
+					break;
+
+				case MirroredRepeatWrapping:
+
+					if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {
+
+						uv.y = Math.ceil( uv.y ) - uv.y;
+
+					} else {
+
+						uv.y = uv.y - Math.floor( uv.y );
+
+					}
+					break;
+
+			}
+
+		}
+
+		if ( this.flipY ) {
+
+			uv.y = 1 - uv.y;
+
+		}
+
+	}
+
+} );
+
+/**
+ * @author supereggbert / http://www.paulbrunt.co.uk/
+ * @author philogb / http://blog.thejit.org/
+ * @author mikael emtinger / http://gomo.se/
+ * @author egraether / http://egraether.com/
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function Vector4( x, y, z, w ) {
+
+	this.x = x || 0;
+	this.y = y || 0;
+	this.z = z || 0;
+	this.w = ( w !== undefined ) ? w : 1;
+
+}
+
+Object.assign( Vector4.prototype, {
+
+	isVector4: true,
+
+	set: function ( x, y, z, w ) {
+
+		this.x = x;
+		this.y = y;
+		this.z = z;
+		this.w = w;
+
+		return this;
+
+	},
+
+	setScalar: function ( scalar ) {
+
+		this.x = scalar;
+		this.y = scalar;
+		this.z = scalar;
+		this.w = scalar;
+
+		return this;
+
+	},
+
+	setX: function ( x ) {
+
+		this.x = x;
+
+		return this;
+
+	},
+
+	setY: function ( y ) {
+
+		this.y = y;
+
+		return this;
+
+	},
+
+	setZ: function ( z ) {
+
+		this.z = z;
+
+		return this;
+
+	},
+
+	setW: function ( w ) {
+
+		this.w = w;
+
+		return this;
+
+	},
+
+	setComponent: function ( index, value ) {
+
+		switch ( index ) {
+
+			case 0: this.x = value; break;
+			case 1: this.y = value; break;
+			case 2: this.z = value; break;
+			case 3: this.w = value; break;
+			default: throw new Error( 'index is out of range: ' + index );
+
+		}
+
+		return this;
+
+	},
+
+	getComponent: function ( index ) {
+
+		switch ( index ) {
+
+			case 0: return this.x;
+			case 1: return this.y;
+			case 2: return this.z;
+			case 3: return this.w;
+			default: throw new Error( 'index is out of range: ' + index );
+
+		}
+
+	},
+
+	clone: function () {
+
+		return new this.constructor( this.x, this.y, this.z, this.w );
+
+	},
+
+	copy: function ( v ) {
+
+		this.x = v.x;
+		this.y = v.y;
+		this.z = v.z;
+		this.w = ( v.w !== undefined ) ? v.w : 1;
+
+		return this;
+
+	},
+
+	add: function ( v, w ) {
+
+		if ( w !== undefined ) {
+
+			console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
+			return this.addVectors( v, w );
+
+		}
+
+		this.x += v.x;
+		this.y += v.y;
+		this.z += v.z;
+		this.w += v.w;
+
+		return this;
+
+	},
+
+	addScalar: function ( s ) {
+
+		this.x += s;
+		this.y += s;
+		this.z += s;
+		this.w += s;
+
+		return this;
+
+	},
+
+	addVectors: function ( a, b ) {
+
+		this.x = a.x + b.x;
+		this.y = a.y + b.y;
+		this.z = a.z + b.z;
+		this.w = a.w + b.w;
+
+		return this;
+
+	},
+
+	addScaledVector: function ( v, s ) {
+
+		this.x += v.x * s;
+		this.y += v.y * s;
+		this.z += v.z * s;
+		this.w += v.w * s;
+
+		return this;
+
+	},
+
+	sub: function ( v, w ) {
+
+		if ( w !== undefined ) {
+
+			console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
+			return this.subVectors( v, w );
+
+		}
+
+		this.x -= v.x;
+		this.y -= v.y;
+		this.z -= v.z;
+		this.w -= v.w;
+
+		return this;
+
+	},
+
+	subScalar: function ( s ) {
+
+		this.x -= s;
+		this.y -= s;
+		this.z -= s;
+		this.w -= s;
+
+		return this;
+
+	},
+
+	subVectors: function ( a, b ) {
+
+		this.x = a.x - b.x;
+		this.y = a.y - b.y;
+		this.z = a.z - b.z;
+		this.w = a.w - b.w;
+
+		return this;
+
+	},
+
+	multiplyScalar: function ( scalar ) {
+
+		this.x *= scalar;
+		this.y *= scalar;
+		this.z *= scalar;
+		this.w *= scalar;
+
+		return this;
+
+	},
+
+	applyMatrix4: function ( m ) {
+
+		var x = this.x, y = this.y, z = this.z, w = this.w;
+		var e = m.elements;
+
+		this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
+		this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
+		this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
+		this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;
+
+		return this;
+
+	},
+
+	divideScalar: function ( scalar ) {
+
+		return this.multiplyScalar( 1 / scalar );
+
+	},
+
+	setAxisAngleFromQuaternion: function ( q ) {
+
+		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm
+
+		// q is assumed to be normalized
+
+		this.w = 2 * Math.acos( q.w );
+
+		var s = Math.sqrt( 1 - q.w * q.w );
+
+		if ( s < 0.0001 ) {
+
+			this.x = 1;
+			this.y = 0;
+			this.z = 0;
+
+		} else {
+
+			this.x = q.x / s;
+			this.y = q.y / s;
+			this.z = q.z / s;
+
+		}
+
+		return this;
+
+	},
+
+	setAxisAngleFromRotationMatrix: function ( m ) {
+
+		// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
+
+		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+		var angle, x, y, z,		// variables for result
+			epsilon = 0.01,		// margin to allow for rounding errors
+			epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees
+
+			te = m.elements,
+
+			m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
+			m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
+			m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
+
+		if ( ( Math.abs( m12 - m21 ) < epsilon ) &&
+		     ( Math.abs( m13 - m31 ) < epsilon ) &&
+		     ( Math.abs( m23 - m32 ) < epsilon ) ) {
+
+			// singularity found
+			// first check for identity matrix which must have +1 for all terms
+			// in leading diagonal and zero in other terms
+
+			if ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&
+			     ( Math.abs( m13 + m31 ) < epsilon2 ) &&
+			     ( Math.abs( m23 + m32 ) < epsilon2 ) &&
+			     ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {
+
+				// this singularity is identity matrix so angle = 0
+
+				this.set( 1, 0, 0, 0 );
+
+				return this; // zero angle, arbitrary axis
+
+			}
+
+			// otherwise this singularity is angle = 180
+
+			angle = Math.PI;
+
+			var xx = ( m11 + 1 ) / 2;
+			var yy = ( m22 + 1 ) / 2;
+			var zz = ( m33 + 1 ) / 2;
+			var xy = ( m12 + m21 ) / 4;
+			var xz = ( m13 + m31 ) / 4;
+			var yz = ( m23 + m32 ) / 4;
+
+			if ( ( xx > yy ) && ( xx > zz ) ) {
+
+				// m11 is the largest diagonal term
+
+				if ( xx < epsilon ) {
+
+					x = 0;
+					y = 0.707106781;
+					z = 0.707106781;
+
+				} else {
+
+					x = Math.sqrt( xx );
+					y = xy / x;
+					z = xz / x;
+
+				}
+
+			} else if ( yy > zz ) {
+
+				// m22 is the largest diagonal term
+
+				if ( yy < epsilon ) {
+
+					x = 0.707106781;
+					y = 0;
+					z = 0.707106781;
+
+				} else {
+
+					y = Math.sqrt( yy );
+					x = xy / y;
+					z = yz / y;
+
+				}
+
+			} else {
+
+				// m33 is the largest diagonal term so base result on this
+
+				if ( zz < epsilon ) {
+
+					x = 0.707106781;
+					y = 0.707106781;
+					z = 0;
+
+				} else {
+
+					z = Math.sqrt( zz );
+					x = xz / z;
+					y = yz / z;
+
+				}
+
+			}
+
+			this.set( x, y, z, angle );
+
+			return this; // return 180 deg rotation
+
+		}
+
+		// as we have reached here there are no singularities so we can handle normally
+
+		var s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +
+		                   ( m13 - m31 ) * ( m13 - m31 ) +
+		                   ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize
+
+		if ( Math.abs( s ) < 0.001 ) s = 1;
+
+		// prevent divide by zero, should not happen if matrix is orthogonal and should be
+		// caught by singularity test above, but I've left it in just in case
+
+		this.x = ( m32 - m23 ) / s;
+		this.y = ( m13 - m31 ) / s;
+		this.z = ( m21 - m12 ) / s;
+		this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );
+
+		return this;
+
+	},
+
+	min: function ( v ) {
+
+		this.x = Math.min( this.x, v.x );
+		this.y = Math.min( this.y, v.y );
+		this.z = Math.min( this.z, v.z );
+		this.w = Math.min( this.w, v.w );
+
+		return this;
+
+	},
+
+	max: function ( v ) {
+
+		this.x = Math.max( this.x, v.x );
+		this.y = Math.max( this.y, v.y );
+		this.z = Math.max( this.z, v.z );
+		this.w = Math.max( this.w, v.w );
+
+		return this;
+
+	},
+
+	clamp: function ( min, max ) {
+
+		// assumes min < max, componentwise
+
+		this.x = Math.max( min.x, Math.min( max.x, this.x ) );
+		this.y = Math.max( min.y, Math.min( max.y, this.y ) );
+		this.z = Math.max( min.z, Math.min( max.z, this.z ) );
+		this.w = Math.max( min.w, Math.min( max.w, this.w ) );
+
+		return this;
+
+	},
+
+	clampScalar: function () {
+
+		var min, max;
+
+		return function clampScalar( minVal, maxVal ) {
+
+			if ( min === undefined ) {
+
+				min = new Vector4();
+				max = new Vector4();
+
+			}
+
+			min.set( minVal, minVal, minVal, minVal );
+			max.set( maxVal, maxVal, maxVal, maxVal );
+
+			return this.clamp( min, max );
+
+		};
+
+	}(),
+
+	clampLength: function ( min, max ) {
+
+		var length = this.length();
+
+		return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
+
+	},
+
+	floor: function () {
+
+		this.x = Math.floor( this.x );
+		this.y = Math.floor( this.y );
+		this.z = Math.floor( this.z );
+		this.w = Math.floor( this.w );
+
+		return this;
+
+	},
+
+	ceil: function () {
+
+		this.x = Math.ceil( this.x );
+		this.y = Math.ceil( this.y );
+		this.z = Math.ceil( this.z );
+		this.w = Math.ceil( this.w );
+
+		return this;
+
+	},
+
+	round: function () {
+
+		this.x = Math.round( this.x );
+		this.y = Math.round( this.y );
+		this.z = Math.round( this.z );
+		this.w = Math.round( this.w );
+
+		return this;
+
+	},
+
+	roundToZero: function () {
+
+		this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
+		this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
+		this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
+		this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );
+
+		return this;
+
+	},
+
+	negate: function () {
+
+		this.x = - this.x;
+		this.y = - this.y;
+		this.z = - this.z;
+		this.w = - this.w;
+
+		return this;
+
+	},
+
+	dot: function ( v ) {
+
+		return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;
+
+	},
+
+	lengthSq: function () {
+
+		return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;
+
+	},
+
+	length: function () {
+
+		return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );
+
+	},
+
+	manhattanLength: function () {
+
+		return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );
+
+	},
+
+	normalize: function () {
+
+		return this.divideScalar( this.length() || 1 );
+
+	},
+
+	setLength: function ( length ) {
+
+		return this.normalize().multiplyScalar( length );
+
+	},
+
+	lerp: function ( v, alpha ) {
+
+		this.x += ( v.x - this.x ) * alpha;
+		this.y += ( v.y - this.y ) * alpha;
+		this.z += ( v.z - this.z ) * alpha;
+		this.w += ( v.w - this.w ) * alpha;
+
+		return this;
+
+	},
+
+	lerpVectors: function ( v1, v2, alpha ) {
+
+		return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
+
+	},
+
+	equals: function ( v ) {
+
+		return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );
+
+	},
+
+	fromArray: function ( array, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		this.x = array[ offset ];
+		this.y = array[ offset + 1 ];
+		this.z = array[ offset + 2 ];
+		this.w = array[ offset + 3 ];
+
+		return this;
+
+	},
+
+	toArray: function ( array, offset ) {
+
+		if ( array === undefined ) array = [];
+		if ( offset === undefined ) offset = 0;
+
+		array[ offset ] = this.x;
+		array[ offset + 1 ] = this.y;
+		array[ offset + 2 ] = this.z;
+		array[ offset + 3 ] = this.w;
+
+		return array;
+
+	},
+
+	fromBufferAttribute: function ( attribute, index, offset ) {
+
+		if ( offset !== undefined ) {
+
+			console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );
+
+		}
+
+		this.x = attribute.getX( index );
+		this.y = attribute.getY( index );
+		this.z = attribute.getZ( index );
+		this.w = attribute.getW( index );
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author szimek / https://github.com/szimek/
+ * @author alteredq / http://alteredqualia.com/
+ * @author Marius Kintel / https://github.com/kintel
+ */
+
+/*
+ In options, we can specify:
+ * Texture parameters for an auto-generated target texture
+ * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
+*/
+function WebGLRenderTarget( width, height, options ) {
+
+	this.uuid = _Math.generateUUID();
+
+	this.width = width;
+	this.height = height;
+
+	this.scissor = new Vector4( 0, 0, width, height );
+	this.scissorTest = false;
+
+	this.viewport = new Vector4( 0, 0, width, height );
+
+	options = options || {};
+
+	if ( options.minFilter === undefined ) options.minFilter = LinearFilter;
+
+	this.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );
+
+	this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
+	this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;
+	this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;
+
+}
+
+Object.assign( WebGLRenderTarget.prototype, EventDispatcher.prototype, {
+
+	isWebGLRenderTarget: true,
+
+	setSize: function ( width, height ) {
+
+		if ( this.width !== width || this.height !== height ) {
+
+			this.width = width;
+			this.height = height;
+
+			this.dispose();
+
+		}
+
+		this.viewport.set( 0, 0, width, height );
+		this.scissor.set( 0, 0, width, height );
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( source ) {
+
+		this.width = source.width;
+		this.height = source.height;
+
+		this.viewport.copy( source.viewport );
+
+		this.texture = source.texture.clone();
+
+		this.depthBuffer = source.depthBuffer;
+		this.stencilBuffer = source.stencilBuffer;
+		this.depthTexture = source.depthTexture;
+
+		return this;
+
+	},
+
+	dispose: function () {
+
+		this.dispatchEvent( { type: 'dispose' } );
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com
+ */
+
+function WebGLRenderTargetCube( width, height, options ) {
+
+	WebGLRenderTarget.call( this, width, height, options );
+
+	this.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5
+	this.activeMipMapLevel = 0;
+
+}
+
+WebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );
+WebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;
+
+WebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {
+
+	Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
+
+	this.image = { data: data, width: width, height: height };
+
+	this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
+	this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
+
+	this.generateMipmaps = false;
+	this.flipY = false;
+	this.unpackAlignment = 1;
+
+}
+
+DataTexture.prototype = Object.create( Texture.prototype );
+DataTexture.prototype.constructor = DataTexture;
+
+DataTexture.prototype.isDataTexture = true;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {
+
+	images = images !== undefined ? images : [];
+	mapping = mapping !== undefined ? mapping : CubeReflectionMapping;
+
+	Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
+
+	this.flipY = false;
+
+}
+
+CubeTexture.prototype = Object.create( Texture.prototype );
+CubeTexture.prototype.constructor = CubeTexture;
+
+CubeTexture.prototype.isCubeTexture = true;
+
+Object.defineProperty( CubeTexture.prototype, 'images', {
+
+	get: function () {
+
+		return this.image;
+
+	},
+
+	set: function ( value ) {
+
+		this.image = value;
+
+	}
+
+} );
+
+/**
+ * @author tschw
+ *
+ * Uniforms of a program.
+ * Those form a tree structure with a special top-level container for the root,
+ * which you get by calling 'new WebGLUniforms( gl, program, renderer )'.
+ *
+ *
+ * Properties of inner nodes including the top-level container:
+ *
+ * .seq - array of nested uniforms
+ * .map - nested uniforms by name
+ *
+ *
+ * Methods of all nodes except the top-level container:
+ *
+ * .setValue( gl, value, [renderer] )
+ *
+ * 		uploads a uniform value(s)
+ *  	the 'renderer' parameter is needed for sampler uniforms
+ *
+ *
+ * Static methods of the top-level container (renderer factorizations):
+ *
+ * .upload( gl, seq, values, renderer )
+ *
+ * 		sets uniforms in 'seq' to 'values[id].value'
+ *
+ * .seqWithValue( seq, values ) : filteredSeq
+ *
+ * 		filters 'seq' entries with corresponding entry in values
+ *
+ *
+ * Methods of the top-level container (renderer factorizations):
+ *
+ * .setValue( gl, name, value )
+ *
+ * 		sets uniform with  name 'name' to 'value'
+ *
+ * .set( gl, obj, prop )
+ *
+ * 		sets uniform from object and property with same name than uniform
+ *
+ * .setOptional( gl, obj, prop )
+ *
+ * 		like .set for an optional property of the object
+ *
+ */
+
+var emptyTexture = new Texture();
+var emptyCubeTexture = new CubeTexture();
+
+// --- Base for inner nodes (including the root) ---
+
+function UniformContainer() {
+
+	this.seq = [];
+	this.map = {};
+
+}
+
+// --- Utilities ---
+
+// Array Caches (provide typed arrays for temporary by size)
+
+var arrayCacheF32 = [];
+var arrayCacheI32 = [];
+
+// Float32Array caches used for uploading Matrix uniforms
+
+var mat4array = new Float32Array( 16 );
+var mat3array = new Float32Array( 9 );
+
+// Flattening for arrays of vectors and matrices
+
+function flatten( array, nBlocks, blockSize ) {
+
+	var firstElem = array[ 0 ];
+
+	if ( firstElem <= 0 || firstElem > 0 ) return array;
+	// unoptimized: ! isNaN( firstElem )
+	// see http://jacksondunstan.com/articles/983
+
+	var n = nBlocks * blockSize,
+		r = arrayCacheF32[ n ];
+
+	if ( r === undefined ) {
+
+		r = new Float32Array( n );
+		arrayCacheF32[ n ] = r;
+
+	}
+
+	if ( nBlocks !== 0 ) {
+
+		firstElem.toArray( r, 0 );
+
+		for ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {
+
+			offset += blockSize;
+			array[ i ].toArray( r, offset );
+
+		}
+
+	}
+
+	return r;
+
+}
+
+// Texture unit allocation
+
+function allocTexUnits( renderer, n ) {
+
+	var r = arrayCacheI32[ n ];
+
+	if ( r === undefined ) {
+
+		r = new Int32Array( n );
+		arrayCacheI32[ n ] = r;
+
+	}
+
+	for ( var i = 0; i !== n; ++ i )
+		r[ i ] = renderer.allocTextureUnit();
+
+	return r;
+
+}
+
+// --- Setters ---
+
+// Note: Defining these methods externally, because they come in a bunch
+// and this way their names minify.
+
+// Single scalar
+
+function setValue1f( gl, v ) {
+
+	gl.uniform1f( this.addr, v );
+
+}
+
+function setValue1i( gl, v ) {
+
+	gl.uniform1i( this.addr, v );
+
+}
+
+// Single float vector (from flat array or THREE.VectorN)
+
+function setValue2fv( gl, v ) {
+
+	if ( v.x === undefined ) {
+
+		gl.uniform2fv( this.addr, v );
+
+	} else {
+
+		gl.uniform2f( this.addr, v.x, v.y );
+
+	}
+
+}
+
+function setValue3fv( gl, v ) {
+
+	if ( v.x !== undefined ) {
+
+		gl.uniform3f( this.addr, v.x, v.y, v.z );
+
+	} else if ( v.r !== undefined ) {
+
+		gl.uniform3f( this.addr, v.r, v.g, v.b );
+
+	} else {
+
+		gl.uniform3fv( this.addr, v );
+
+	}
+
+}
+
+function setValue4fv( gl, v ) {
+
+	if ( v.x === undefined ) {
+
+		gl.uniform4fv( this.addr, v );
+
+	} else {
+
+		 gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );
+
+	}
+
+}
+
+// Single matrix (from flat array or MatrixN)
+
+function setValue2fm( gl, v ) {
+
+	gl.uniformMatrix2fv( this.addr, false, v.elements || v );
+
+}
+
+function setValue3fm( gl, v ) {
+
+	if ( v.elements === undefined ) {
+
+		gl.uniformMatrix3fv( this.addr, false, v );
+
+	} else {
+
+		mat3array.set( v.elements );
+		gl.uniformMatrix3fv( this.addr, false, mat3array );
+
+	}
+
+}
+
+function setValue4fm( gl, v ) {
+
+	if ( v.elements === undefined ) {
+
+		gl.uniformMatrix4fv( this.addr, false, v );
+
+	} else {
+
+		mat4array.set( v.elements );
+		gl.uniformMatrix4fv( this.addr, false, mat4array );
+
+	}
+
+}
+
+// Single texture (2D / Cube)
+
+function setValueT1( gl, v, renderer ) {
+
+	var unit = renderer.allocTextureUnit();
+	gl.uniform1i( this.addr, unit );
+	renderer.setTexture2D( v || emptyTexture, unit );
+
+}
+
+function setValueT6( gl, v, renderer ) {
+
+	var unit = renderer.allocTextureUnit();
+	gl.uniform1i( this.addr, unit );
+	renderer.setTextureCube( v || emptyCubeTexture, unit );
+
+}
+
+// Integer / Boolean vectors or arrays thereof (always flat arrays)
+
+function setValue2iv( gl, v ) {
+
+	gl.uniform2iv( this.addr, v );
+
+}
+
+function setValue3iv( gl, v ) {
+
+	gl.uniform3iv( this.addr, v );
+
+}
+
+function setValue4iv( gl, v ) {
+
+	gl.uniform4iv( this.addr, v );
+
+}
+
+// Helper to pick the right setter for the singular case
+
+function getSingularSetter( type ) {
+
+	switch ( type ) {
+
+		case 0x1406: return setValue1f; // FLOAT
+		case 0x8b50: return setValue2fv; // _VEC2
+		case 0x8b51: return setValue3fv; // _VEC3
+		case 0x8b52: return setValue4fv; // _VEC4
+
+		case 0x8b5a: return setValue2fm; // _MAT2
+		case 0x8b5b: return setValue3fm; // _MAT3
+		case 0x8b5c: return setValue4fm; // _MAT4
+
+		case 0x8b5e: case 0x8d66: return setValueT1; // SAMPLER_2D, SAMPLER_EXTERNAL_OES
+		case 0x8b60: return setValueT6; // SAMPLER_CUBE
+
+		case 0x1404: case 0x8b56: return setValue1i; // INT, BOOL
+		case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2
+		case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3
+		case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4
+
+	}
+
+}
+
+// Array of scalars
+
+function setValue1fv( gl, v ) {
+
+	gl.uniform1fv( this.addr, v );
+
+}
+function setValue1iv( gl, v ) {
+
+	gl.uniform1iv( this.addr, v );
+
+}
+
+// Array of vectors (flat or from THREE classes)
+
+function setValueV2a( gl, v ) {
+
+	gl.uniform2fv( this.addr, flatten( v, this.size, 2 ) );
+
+}
+
+function setValueV3a( gl, v ) {
+
+	gl.uniform3fv( this.addr, flatten( v, this.size, 3 ) );
+
+}
+
+function setValueV4a( gl, v ) {
+
+	gl.uniform4fv( this.addr, flatten( v, this.size, 4 ) );
+
+}
+
+// Array of matrices (flat or from THREE clases)
+
+function setValueM2a( gl, v ) {
+
+	gl.uniformMatrix2fv( this.addr, false, flatten( v, this.size, 4 ) );
+
+}
+
+function setValueM3a( gl, v ) {
+
+	gl.uniformMatrix3fv( this.addr, false, flatten( v, this.size, 9 ) );
+
+}
+
+function setValueM4a( gl, v ) {
+
+	gl.uniformMatrix4fv( this.addr, false, flatten( v, this.size, 16 ) );
+
+}
+
+// Array of textures (2D / Cube)
+
+function setValueT1a( gl, v, renderer ) {
+
+	var n = v.length,
+		units = allocTexUnits( renderer, n );
+
+	gl.uniform1iv( this.addr, units );
+
+	for ( var i = 0; i !== n; ++ i ) {
+
+		renderer.setTexture2D( v[ i ] || emptyTexture, units[ i ] );
+
+	}
+
+}
+
+function setValueT6a( gl, v, renderer ) {
+
+	var n = v.length,
+		units = allocTexUnits( renderer, n );
+
+	gl.uniform1iv( this.addr, units );
+
+	for ( var i = 0; i !== n; ++ i ) {
+
+		renderer.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );
+
+	}
+
+}
+
+// Helper to pick the right setter for a pure (bottom-level) array
+
+function getPureArraySetter( type ) {
+
+	switch ( type ) {
+
+		case 0x1406: return setValue1fv; // FLOAT
+		case 0x8b50: return setValueV2a; // _VEC2
+		case 0x8b51: return setValueV3a; // _VEC3
+		case 0x8b52: return setValueV4a; // _VEC4
+
+		case 0x8b5a: return setValueM2a; // _MAT2
+		case 0x8b5b: return setValueM3a; // _MAT3
+		case 0x8b5c: return setValueM4a; // _MAT4
+
+		case 0x8b5e: return setValueT1a; // SAMPLER_2D
+		case 0x8b60: return setValueT6a; // SAMPLER_CUBE
+
+		case 0x1404: case 0x8b56: return setValue1iv; // INT, BOOL
+		case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2
+		case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3
+		case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4
+
+	}
+
+}
+
+// --- Uniform Classes ---
+
+function SingleUniform( id, activeInfo, addr ) {
+
+	this.id = id;
+	this.addr = addr;
+	this.setValue = getSingularSetter( activeInfo.type );
+
+	// this.path = activeInfo.name; // DEBUG
+
+}
+
+function PureArrayUniform( id, activeInfo, addr ) {
+
+	this.id = id;
+	this.addr = addr;
+	this.size = activeInfo.size;
+	this.setValue = getPureArraySetter( activeInfo.type );
+
+	// this.path = activeInfo.name; // DEBUG
+
+}
+
+function StructuredUniform( id ) {
+
+	this.id = id;
+
+	UniformContainer.call( this ); // mix-in
+
+}
+
+StructuredUniform.prototype.setValue = function ( gl, value ) {
+
+	// Note: Don't need an extra 'renderer' parameter, since samplers
+	// are not allowed in structured uniforms.
+
+	var seq = this.seq;
+
+	for ( var i = 0, n = seq.length; i !== n; ++ i ) {
+
+		var u = seq[ i ];
+		u.setValue( gl, value[ u.id ] );
+
+	}
+
+};
+
+// --- Top-level ---
+
+// Parser - builds up the property tree from the path strings
+
+var RePathPart = /([\w\d_]+)(\])?(\[|\.)?/g;
+
+// extracts
+// 	- the identifier (member name or array index)
+//  - followed by an optional right bracket (found when array index)
+//  - followed by an optional left bracket or dot (type of subscript)
+//
+// Note: These portions can be read in a non-overlapping fashion and
+// allow straightforward parsing of the hierarchy that WebGL encodes
+// in the uniform names.
+
+function addUniform( container, uniformObject ) {
+
+	container.seq.push( uniformObject );
+	container.map[ uniformObject.id ] = uniformObject;
+
+}
+
+function parseUniform( activeInfo, addr, container ) {
+
+	var path = activeInfo.name,
+		pathLength = path.length;
+
+	// reset RegExp object, because of the early exit of a previous run
+	RePathPart.lastIndex = 0;
+
+	for ( ; ; ) {
+
+		var match = RePathPart.exec( path ),
+			matchEnd = RePathPart.lastIndex,
+
+			id = match[ 1 ],
+			idIsIndex = match[ 2 ] === ']',
+			subscript = match[ 3 ];
+
+		if ( idIsIndex ) id = id | 0; // convert to integer
+
+		if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {
+
+			// bare name or "pure" bottom-level array "[0]" suffix
+
+			addUniform( container, subscript === undefined ?
+				new SingleUniform( id, activeInfo, addr ) :
+				new PureArrayUniform( id, activeInfo, addr ) );
+
+			break;
+
+		} else {
+
+			// step into inner node / create it in case it doesn't exist
+
+			var map = container.map, next = map[ id ];
+
+			if ( next === undefined ) {
+
+				next = new StructuredUniform( id );
+				addUniform( container, next );
+
+			}
+
+			container = next;
+
+		}
+
+	}
+
+}
+
+// Root Container
+
+function WebGLUniforms( gl, program, renderer ) {
+
+	UniformContainer.call( this );
+
+	this.renderer = renderer;
+
+	var n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS );
+
+	for ( var i = 0; i < n; ++ i ) {
+
+		var info = gl.getActiveUniform( program, i ),
+			path = info.name,
+			addr = gl.getUniformLocation( program, path );
+
+		parseUniform( info, addr, this );
+
+	}
+
+}
+
+WebGLUniforms.prototype.setValue = function ( gl, name, value ) {
+
+	var u = this.map[ name ];
+
+	if ( u !== undefined ) u.setValue( gl, value, this.renderer );
+
+};
+
+WebGLUniforms.prototype.setOptional = function ( gl, object, name ) {
+
+	var v = object[ name ];
+
+	if ( v !== undefined ) this.setValue( gl, name, v );
+
+};
+
+
+// Static interface
+
+WebGLUniforms.upload = function ( gl, seq, values, renderer ) {
+
+	for ( var i = 0, n = seq.length; i !== n; ++ i ) {
+
+		var u = seq[ i ],
+			v = values[ u.id ];
+
+		if ( v.needsUpdate !== false ) {
+
+			// note: always updating when .needsUpdate is undefined
+			u.setValue( gl, v.value, renderer );
+
+		}
+
+	}
+
+};
+
+WebGLUniforms.seqWithValue = function ( seq, values ) {
+
+	var r = [];
+
+	for ( var i = 0, n = seq.length; i !== n; ++ i ) {
+
+		var u = seq[ i ];
+		if ( u.id in values ) r.push( u );
+
+	}
+
+	return r;
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+var ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
+	'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
+	'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
+	'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
+	'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
+	'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
+	'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
+	'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
+	'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
+	'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
+	'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
+	'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
+	'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
+	'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
+	'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
+	'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
+	'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
+	'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
+	'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
+	'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
+	'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
+	'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
+	'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
+	'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };
+
+function Color( r, g, b ) {
+
+	if ( g === undefined && b === undefined ) {
+
+		// r is THREE.Color, hex or string
+		return this.set( r );
+
+	}
+
+	return this.setRGB( r, g, b );
+
+}
+
+Object.assign( Color.prototype, {
+
+	isColor: true,
+
+	r: 1, g: 1, b: 1,
+
+	set: function ( value ) {
+
+		if ( value && value.isColor ) {
+
+			this.copy( value );
+
+		} else if ( typeof value === 'number' ) {
+
+			this.setHex( value );
+
+		} else if ( typeof value === 'string' ) {
+
+			this.setStyle( value );
+
+		}
+
+		return this;
+
+	},
+
+	setScalar: function ( scalar ) {
+
+		this.r = scalar;
+		this.g = scalar;
+		this.b = scalar;
+
+		return this;
+
+	},
+
+	setHex: function ( hex ) {
+
+		hex = Math.floor( hex );
+
+		this.r = ( hex >> 16 & 255 ) / 255;
+		this.g = ( hex >> 8 & 255 ) / 255;
+		this.b = ( hex & 255 ) / 255;
+
+		return this;
+
+	},
+
+	setRGB: function ( r, g, b ) {
+
+		this.r = r;
+		this.g = g;
+		this.b = b;
+
+		return this;
+
+	},
+
+	setHSL: function () {
+
+		function hue2rgb( p, q, t ) {
+
+			if ( t < 0 ) t += 1;
+			if ( t > 1 ) t -= 1;
+			if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
+			if ( t < 1 / 2 ) return q;
+			if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
+			return p;
+
+		}
+
+		return function setHSL( h, s, l ) {
+
+			// h,s,l ranges are in 0.0 - 1.0
+			h = _Math.euclideanModulo( h, 1 );
+			s = _Math.clamp( s, 0, 1 );
+			l = _Math.clamp( l, 0, 1 );
+
+			if ( s === 0 ) {
+
+				this.r = this.g = this.b = l;
+
+			} else {
+
+				var p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
+				var q = ( 2 * l ) - p;
+
+				this.r = hue2rgb( q, p, h + 1 / 3 );
+				this.g = hue2rgb( q, p, h );
+				this.b = hue2rgb( q, p, h - 1 / 3 );
+
+			}
+
+			return this;
+
+		};
+
+	}(),
+
+	setStyle: function ( style ) {
+
+		function handleAlpha( string ) {
+
+			if ( string === undefined ) return;
+
+			if ( parseFloat( string ) < 1 ) {
+
+				console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );
+
+			}
+
+		}
+
+
+		var m;
+
+		if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) {
+
+			// rgb / hsl
+
+			var color;
+			var name = m[ 1 ];
+			var components = m[ 2 ];
+
+			switch ( name ) {
+
+				case 'rgb':
+				case 'rgba':
+
+					if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
+
+						// rgb(255,0,0) rgba(255,0,0,0.5)
+						this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
+						this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
+						this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;
+
+						handleAlpha( color[ 5 ] );
+
+						return this;
+
+					}
+
+					if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
+
+						// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
+						this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
+						this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
+						this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;
+
+						handleAlpha( color[ 5 ] );
+
+						return this;
+
+					}
+
+					break;
+
+				case 'hsl':
+				case 'hsla':
+
+					if ( color = /^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
+
+						// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
+						var h = parseFloat( color[ 1 ] ) / 360;
+						var s = parseInt( color[ 2 ], 10 ) / 100;
+						var l = parseInt( color[ 3 ], 10 ) / 100;
+
+						handleAlpha( color[ 5 ] );
+
+						return this.setHSL( h, s, l );
+
+					}
+
+					break;
+
+			}
+
+		} else if ( m = /^\#([A-Fa-f0-9]+)$/.exec( style ) ) {
+
+			// hex color
+
+			var hex = m[ 1 ];
+			var size = hex.length;
+
+			if ( size === 3 ) {
+
+				// #ff0
+				this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
+				this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
+				this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;
+
+				return this;
+
+			} else if ( size === 6 ) {
+
+				// #ff0000
+				this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
+				this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
+				this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;
+
+				return this;
+
+			}
+
+		}
+
+		if ( style && style.length > 0 ) {
+
+			// color keywords
+			var hex = ColorKeywords[ style ];
+
+			if ( hex !== undefined ) {
+
+				// red
+				this.setHex( hex );
+
+			} else {
+
+				// unknown color
+				console.warn( 'THREE.Color: Unknown color ' + style );
+
+			}
+
+		}
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor( this.r, this.g, this.b );
+
+	},
+
+	copy: function ( color ) {
+
+		this.r = color.r;
+		this.g = color.g;
+		this.b = color.b;
+
+		return this;
+
+	},
+
+	copyGammaToLinear: function ( color, gammaFactor ) {
+
+		if ( gammaFactor === undefined ) gammaFactor = 2.0;
+
+		this.r = Math.pow( color.r, gammaFactor );
+		this.g = Math.pow( color.g, gammaFactor );
+		this.b = Math.pow( color.b, gammaFactor );
+
+		return this;
+
+	},
+
+	copyLinearToGamma: function ( color, gammaFactor ) {
+
+		if ( gammaFactor === undefined ) gammaFactor = 2.0;
+
+		var safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;
+
+		this.r = Math.pow( color.r, safeInverse );
+		this.g = Math.pow( color.g, safeInverse );
+		this.b = Math.pow( color.b, safeInverse );
+
+		return this;
+
+	},
+
+	convertGammaToLinear: function () {
+
+		var r = this.r, g = this.g, b = this.b;
+
+		this.r = r * r;
+		this.g = g * g;
+		this.b = b * b;
+
+		return this;
+
+	},
+
+	convertLinearToGamma: function () {
+
+		this.r = Math.sqrt( this.r );
+		this.g = Math.sqrt( this.g );
+		this.b = Math.sqrt( this.b );
+
+		return this;
+
+	},
+
+	getHex: function () {
+
+		return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;
+
+	},
+
+	getHexString: function () {
+
+		return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );
+
+	},
+
+	getHSL: function ( optionalTarget ) {
+
+		// h,s,l ranges are in 0.0 - 1.0
+
+		var hsl = optionalTarget || { h: 0, s: 0, l: 0 };
+
+		var r = this.r, g = this.g, b = this.b;
+
+		var max = Math.max( r, g, b );
+		var min = Math.min( r, g, b );
+
+		var hue, saturation;
+		var lightness = ( min + max ) / 2.0;
+
+		if ( min === max ) {
+
+			hue = 0;
+			saturation = 0;
+
+		} else {
+
+			var delta = max - min;
+
+			saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );
+
+			switch ( max ) {
+
+				case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
+				case g: hue = ( b - r ) / delta + 2; break;
+				case b: hue = ( r - g ) / delta + 4; break;
+
+			}
+
+			hue /= 6;
+
+		}
+
+		hsl.h = hue;
+		hsl.s = saturation;
+		hsl.l = lightness;
+
+		return hsl;
+
+	},
+
+	getStyle: function () {
+
+		return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';
+
+	},
+
+	offsetHSL: function ( h, s, l ) {
+
+		var hsl = this.getHSL();
+
+		hsl.h += h; hsl.s += s; hsl.l += l;
+
+		this.setHSL( hsl.h, hsl.s, hsl.l );
+
+		return this;
+
+	},
+
+	add: function ( color ) {
+
+		this.r += color.r;
+		this.g += color.g;
+		this.b += color.b;
+
+		return this;
+
+	},
+
+	addColors: function ( color1, color2 ) {
+
+		this.r = color1.r + color2.r;
+		this.g = color1.g + color2.g;
+		this.b = color1.b + color2.b;
+
+		return this;
+
+	},
+
+	addScalar: function ( s ) {
+
+		this.r += s;
+		this.g += s;
+		this.b += s;
+
+		return this;
+
+	},
+
+	sub: function ( color ) {
+
+		this.r = Math.max( 0, this.r - color.r );
+		this.g = Math.max( 0, this.g - color.g );
+		this.b = Math.max( 0, this.b - color.b );
+
+		return this;
+
+	},
+
+	multiply: function ( color ) {
+
+		this.r *= color.r;
+		this.g *= color.g;
+		this.b *= color.b;
+
+		return this;
+
+	},
+
+	multiplyScalar: function ( s ) {
+
+		this.r *= s;
+		this.g *= s;
+		this.b *= s;
+
+		return this;
+
+	},
+
+	lerp: function ( color, alpha ) {
+
+		this.r += ( color.r - this.r ) * alpha;
+		this.g += ( color.g - this.g ) * alpha;
+		this.b += ( color.b - this.b ) * alpha;
+
+		return this;
+
+	},
+
+	equals: function ( c ) {
+
+		return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );
+
+	},
+
+	fromArray: function ( array, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		this.r = array[ offset ];
+		this.g = array[ offset + 1 ];
+		this.b = array[ offset + 2 ];
+
+		return this;
+
+	},
+
+	toArray: function ( array, offset ) {
+
+		if ( array === undefined ) array = [];
+		if ( offset === undefined ) offset = 0;
+
+		array[ offset ] = this.r;
+		array[ offset + 1 ] = this.g;
+		array[ offset + 2 ] = this.b;
+
+		return array;
+
+	},
+
+	toJSON: function () {
+
+		return this.getHex();
+
+	}
+
+} );
+
+/**
+ * Uniforms library for shared webgl shaders
+ */
+
+var UniformsLib = {
+
+	common: {
+
+		diffuse: { value: new Color( 0xeeeeee ) },
+		opacity: { value: 1.0 },
+
+		map: { value: null },
+		uvTransform: { value: new Matrix3() },
+
+		alphaMap: { value: null },
+
+	},
+
+	specularmap: {
+
+		specularMap: { value: null },
+
+	},
+
+	envmap: {
+
+		envMap: { value: null },
+		flipEnvMap: { value: - 1 },
+		reflectivity: { value: 1.0 },
+		refractionRatio: { value: 0.98 }
+
+	},
+
+	aomap: {
+
+		aoMap: { value: null },
+		aoMapIntensity: { value: 1 }
+
+	},
+
+	lightmap: {
+
+		lightMap: { value: null },
+		lightMapIntensity: { value: 1 }
+
+	},
+
+	emissivemap: {
+
+		emissiveMap: { value: null }
+
+	},
+
+	bumpmap: {
+
+		bumpMap: { value: null },
+		bumpScale: { value: 1 }
+
+	},
+
+	normalmap: {
+
+		normalMap: { value: null },
+		normalScale: { value: new Vector2( 1, 1 ) }
+
+	},
+
+	displacementmap: {
+
+		displacementMap: { value: null },
+		displacementScale: { value: 1 },
+		displacementBias: { value: 0 }
+
+	},
+
+	roughnessmap: {
+
+		roughnessMap: { value: null }
+
+	},
+
+	metalnessmap: {
+
+		metalnessMap: { value: null }
+
+	},
+
+	gradientmap: {
+
+		gradientMap: { value: null }
+
+	},
+
+	fog: {
+
+		fogDensity: { value: 0.00025 },
+		fogNear: { value: 1 },
+		fogFar: { value: 2000 },
+		fogColor: { value: new Color( 0xffffff ) }
+
+	},
+
+	lights: {
+
+		ambientLightColor: { value: [] },
+
+		directionalLights: { value: [], properties: {
+			direction: {},
+			color: {},
+
+			shadow: {},
+			shadowBias: {},
+			shadowRadius: {},
+			shadowMapSize: {}
+		} },
+
+		directionalShadowMap: { value: [] },
+		directionalShadowMatrix: { value: [] },
+
+		spotLights: { value: [], properties: {
+			color: {},
+			position: {},
+			direction: {},
+			distance: {},
+			coneCos: {},
+			penumbraCos: {},
+			decay: {},
+
+			shadow: {},
+			shadowBias: {},
+			shadowRadius: {},
+			shadowMapSize: {}
+		} },
+
+		spotShadowMap: { value: [] },
+		spotShadowMatrix: { value: [] },
+
+		pointLights: { value: [], properties: {
+			color: {},
+			position: {},
+			decay: {},
+			distance: {},
+
+			shadow: {},
+			shadowBias: {},
+			shadowRadius: {},
+			shadowMapSize: {},
+			shadowCameraNear: {},
+			shadowCameraFar: {}
+		} },
+
+		pointShadowMap: { value: [] },
+		pointShadowMatrix: { value: [] },
+
+		hemisphereLights: { value: [], properties: {
+			direction: {},
+			skyColor: {},
+			groundColor: {}
+		} },
+
+		// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
+		rectAreaLights: { value: [], properties: {
+			color: {},
+			position: {},
+			width: {},
+			height: {}
+		} }
+
+	},
+
+	points: {
+
+		diffuse: { value: new Color( 0xeeeeee ) },
+		opacity: { value: 1.0 },
+		size: { value: 1.0 },
+		scale: { value: 1.0 },
+		map: { value: null },
+		uvTransform: { value: new Matrix3() }
+
+	}
+
+};
+
+/**
+ * Uniform Utilities
+ */
+
+var UniformsUtils = {
+
+	merge: function ( uniforms ) {
+
+		var merged = {};
+
+		for ( var u = 0; u < uniforms.length; u ++ ) {
+
+			var tmp = this.clone( uniforms[ u ] );
+
+			for ( var p in tmp ) {
+
+				merged[ p ] = tmp[ p ];
+
+			}
+
+		}
+
+		return merged;
+
+	},
+
+	clone: function ( uniforms_src ) {
+
+		var uniforms_dst = {};
+
+		for ( var u in uniforms_src ) {
+
+			uniforms_dst[ u ] = {};
+
+			for ( var p in uniforms_src[ u ] ) {
+
+				var parameter_src = uniforms_src[ u ][ p ];
+
+				if ( parameter_src && ( parameter_src.isColor ||
+					parameter_src.isMatrix3 || parameter_src.isMatrix4 ||
+					parameter_src.isVector2 || parameter_src.isVector3 || parameter_src.isVector4 ||
+					parameter_src.isTexture ) ) {
+
+					uniforms_dst[ u ][ p ] = parameter_src.clone();
+
+				} else if ( Array.isArray( parameter_src ) ) {
+
+					uniforms_dst[ u ][ p ] = parameter_src.slice();
+
+				} else {
+
+					uniforms_dst[ u ][ p ] = parameter_src;
+
+				}
+
+			}
+
+		}
+
+		return uniforms_dst;
+
+	}
+
+};
+
+var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif\n";
+
+var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif\n";
+
+var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif\n";
+
+var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif\n";
+
+var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";
+
+var begin_vertex = "\nvec3 transformed = vec3( position );\n";
+
+var beginnormal_vertex = "\nvec3 objectNormal = vec3( normal );\n";
+
+var bsdfs = "float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\tif( decayExponent > 0.0 ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\treturn distanceFalloff * maxDistanceCutoffFactor;\n#else\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n#endif\n\t}\n\treturn 1.0;\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE  = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS  = 0.5 / LUT_SIZE;\n\tfloat theta = acos( dot( N, V ) );\n\tvec2 uv = vec2(\n\t\tsqrt( saturate( roughness ) ),\n\t\tsaturate( theta / ( 0.5 * PI ) ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.86267 + (0.49788 + 0.01436 * y ) * y;\n\tfloat b = 3.45068 + (4.18814 + y) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = (x > 0.0) ? v : 0.5 * inversesqrt( 1.0 - x * x ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tvec3 result = vec3( LTC_ClippedSphereFormFactor( vectorFormFactor ) );\n\treturn result;\n}\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\n\treturn specularColor * AB.x + AB.y;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n";
+
+var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif\n";
+
+var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; ++ i ) {\n\t\tvec4 plane = clippingPlanes[ i ];\n\t\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t\t\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; ++ i ) {\n\t\t\tvec4 plane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\tif ( clipped ) discard;\n\t\n\t#endif\n#endif\n";
+
+var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\n\t\tvarying vec3 vViewPosition;\n\t#endif\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif\n";
+
+var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvarying vec3 vViewPosition;\n#endif\n";
+
+var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n";
+
+var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";
+
+var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif\n";
+
+var color_pars_vertex = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";
+
+var color_vertex = "#ifdef USE_COLOR\n\tvColor.xyz = color.xyz;\n#endif";
+
+var common = "#define PI 3.14159265359\n#define PI2 6.28318530718\n#define PI_HALF 1.5707963267949\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\n";
+
+var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n#define cubeUV_textureSize (1024.0)\nint getFaceFromDirection(vec3 direction) {\n\tvec3 absDirection = abs(direction);\n\tint face = -1;\n\tif( absDirection.x > absDirection.z ) {\n\t\tif(absDirection.x > absDirection.y )\n\t\t\tface = direction.x > 0.0 ? 0 : 3;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\telse {\n\t\tif(absDirection.z > absDirection.y )\n\t\t\tface = direction.z > 0.0 ? 2 : 5;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\treturn face;\n}\n#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\n\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\n\tfloat dxRoughness = dFdx(roughness);\n\tfloat dyRoughness = dFdy(roughness);\n\tvec3 dx = dFdx( vec * scale * dxRoughness );\n\tvec3 dy = dFdy( vec * scale * dyRoughness );\n\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\n\td = clamp(d, 1.0, cubeUV_rangeClamp);\n\tfloat mipLevel = 0.5 * log2(d);\n\treturn vec2(floor(mipLevel), fract(mipLevel));\n}\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\n\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\n\tfloat a = 16.0 * cubeUV_rcpTextureSize;\n\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\n\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\n\tfloat powScale = exp2_packed.x * exp2_packed.y;\n\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\n\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\n\tbool bRes = mipLevel == 0.0;\n\tscale =  bRes && (scale < a) ? a : scale;\n\tvec3 r;\n\tvec2 offset;\n\tint face = getFaceFromDirection(direction);\n\tfloat rcpPowScale = 1.0 / powScale;\n\tif( face == 0) {\n\t\tr = vec3(direction.x, -direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 1) {\n\t\tr = vec3(direction.y, direction.x, direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 2) {\n\t\tr = vec3(direction.z, direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 3) {\n\t\tr = vec3(direction.x, direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse if( face == 4) {\n\t\tr = vec3(direction.y, direction.x, -direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse {\n\t\tr = vec3(direction.z, -direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\tr = normalize(r);\n\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\n\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\n\tvec2 base = offset + vec2( texelOffset );\n\treturn base + s * ( scale - 2.0 * texelOffset );\n}\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\nvec4 textureCubeUV(vec3 reflectedDirection, float roughness ) {\n\tfloat roughnessVal = roughness* cubeUV_maxLods3;\n\tfloat r1 = floor(roughnessVal);\n\tfloat r2 = r1 + 1.0;\n\tfloat t = fract(roughnessVal);\n\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\n\tfloat s = mipInfo.y;\n\tfloat level0 = mipInfo.x;\n\tfloat level1 = level0 + 1.0;\n\tlevel1 = level1 > 5.0 ? 5.0 : level1;\n\tlevel0 += min( floor( s + 0.5 ), 5.0 );\n\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\n\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\n\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\n\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\n\tvec4 result = mix(color10, color20, t);\n\treturn vec4(result.rgb, 1.0);\n}\n#endif\n";
+
+var defaultnormal_vertex = "vec3 transformedNormal = normalMatrix * objectNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n";
+
+var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif\n";
+
+var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n#endif\n";
+
+var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif\n";
+
+var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif\n";
+
+var encodings_fragment = "  gl_FragColor = linearToOutputTexel( gl_FragColor );\n";
+
+var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.xyz * value.w * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat M      = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM            = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat D      = max( maxRange / maxRGB, 1.0 );\n\tD            = min( floor( D ) / 255.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value )  {\n\tvec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\n\tXp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract(Le);\n\tvResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\n\treturn vec4( max(vRGB, 0.0), 1.0 );\n}\n";
+
+var envmap_fragment = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\treflectVec = normalize( reflectVec );\n\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\treflectVec = normalize( reflectVec );\n\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\tenvColor = envMapTexelToLinear( envColor );\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif\n";
+
+var envmap_pars_fragment = "#if defined( USE_ENVMAP ) || defined( PHYSICAL )\n\tuniform float reflectivity;\n\tuniform float envMapIntensity;\n#endif\n#ifdef USE_ENVMAP\n\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\n\t\tvarying vec3 vWorldPosition;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif\n";
+
+var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif\n";
+
+var envmap_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif\n";
+
+var fog_vertex = "\n#ifdef USE_FOG\nfogDepth = -mvPosition.z;\n#endif";
+
+var fog_pars_vertex = "#ifdef USE_FOG\n  varying float fogDepth;\n#endif\n";
+
+var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif\n";
+
+var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif\n";
+
+var gradientmap_pars_fragment = "#ifdef TOON\n\tuniform sampler2D gradientMap;\n\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\t\tfloat dotNL = dot( normal, lightDirection );\n\t\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t\t#ifdef USE_GRADIENTMAP\n\t\t\treturn texture2D( gradientMap, coord ).rgb;\n\t\t#else\n\t\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t\t#endif\n\t}\n#endif\n";
+
+var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n#endif\n";
+
+var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";
+
+var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\n#if NUM_POINT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_DIR_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n#endif\n";
+
+var lights_pars = "uniform vec3 ambientLightColor;\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t\tfloat shadowCameraNear;\n\t\tfloat shadowCameraFar;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltcMat;\tuniform sampler2D ltcMag;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif\n#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( queryVec, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\tvec4 envMapColor = textureCubeUV(queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent));\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif\n";
+
+var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;\n";
+
+var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifdef TOON\n\t\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#else\n\t\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\t\tvec3 irradiance = dotNL * directLight.color;\n\t#endif\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)\n";
+
+var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\n#ifdef STANDARD\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.clearCoat = saturate( clearCoat );\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\n#endif\n";
+
+var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\t#ifndef STANDARD\n\t\tfloat clearCoat;\n\t\tfloat clearCoatRoughness;\n\t#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos - halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos + halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos + halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos - halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tfloat norm = texture2D( ltcMag, uv ).a;\n\t\tvec4 t = texture2D( ltcMat, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3(   1,   0, t.y ),\n\t\t\tvec3(   0, t.z,   0 ),\n\t\t\tvec3( t.w,   0, t.x )\n\t\t);\n\t\treflectedLight.directSpecular += lightColor * material.specularColor * norm * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifndef STANDARD\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#ifndef STANDARD\n\t\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifndef STANDARD\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\tfloat dotNL = dotNV;\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\t#ifndef STANDARD\n\t\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\n#define Material_ClearCoat_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}\n";
+
+var lights_template = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\t#ifdef USE_LIGHTMAP\n\t\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tirradiance += getLightProbeIndirectIrradiance( geometry, 8 );\n\t#endif\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tvec3 radiance = getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), 8 );\n\t#ifndef STANDARD\n\t\tvec3 clearCoatRadiance = getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), 8 );\n\t#else\n\t\tvec3 clearCoatRadiance = vec3( 0.0 );\n\t#endif\n\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\n#endif\n";
+
+var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";
+
+var logdepthbuf_pars_fragment = "#ifdef USE_LOGDEPTHBUF\n\tuniform float logDepthBufFC;\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n#endif\n";
+
+var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n\tuniform float logDepthBufFC;\n#endif";
+
+var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t#else\n\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\tgl_Position.z *= gl_Position.w;\n\t#endif\n#endif\n";
+
+var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif\n";
+
+var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n";
+
+var map_particle_fragment = "#ifdef USE_MAP\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n";
+
+var map_particle_pars_fragment = "#ifdef USE_MAP\n\tuniform mat3 uvTransform;\n\tuniform sampler2D map;\n#endif\n";
+
+var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif\n";
+
+var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";
+
+var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n#endif\n";
+
+var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\t#ifndef USE_MORPHNORMALS\n\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";
+
+var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\t#endif\n#endif\n";
+
+var normal_fragment = "#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n#endif\n#ifdef USE_NORMALMAP\n\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif\n";
+
+var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 S = normalize( q0 * st1.t - q1 * st0.t );\n\t\tvec3 T = normalize( -q0 * st1.s + q1 * st0.s );\n\t\tvec3 N = normalize( surf_norm );\n\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\tmapN.xy = normalScale * mapN.xy;\n\t\tmat3 tsn = mat3( S, T, N );\n\t\treturn normalize( tsn * mapN );\n\t}\n#endif\n";
+
+var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}\n";
+
+var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif\n";
+
+var project_vertex = "vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\ngl_Position = projectionMatrix * mvPosition;\n";
+
+var dithering_fragment = "#if defined( DITHERING )\n  gl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif\n";
+
+var dithering_pars_fragment = "#if defined( DITHERING )\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif\n";
+
+var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif\n";
+
+var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";
+
+var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\n\t\tconst vec2 offset = vec2( 0.0, 1.0 );\n\t\tvec2 texelSize = vec2( 1.0 ) / size;\n\t\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\n\t\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\n\t\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\n\t\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\n\t\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\n\t\tvec2 f = fract( uv * size + 0.5 );\n\t\tfloat a = mix( lb, lt, f.y );\n\t\tfloat b = mix( rb, rt, f.y );\n\t\tfloat c = mix( a, b, f.x );\n\t\treturn c;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif\n";
+
+var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n#endif\n";
+
+var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n#endif\n";
+
+var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tDirectionalLight directionalLight;\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tSpotLight spotLight;\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tPointLight pointLight;\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#endif\n\t#endif\n\treturn shadow;\n}\n";
+
+var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";
+
+var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif\n";
+
+var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif\n";
+
+var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n#endif\n";
+
+var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";
+
+var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";
+
+var tonemapping_fragment = "#if defined( TONE_MAPPING )\n  gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif\n";
+
+var tonemapping_pars_fragment = "#ifndef saturate\n\t#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nuniform float toneMappingWhitePoint;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\nvec3 Uncharted2ToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\n";
+
+var uv_pars_fragment = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n#endif";
+
+var uv_pars_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif\n";
+
+var uv_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";
+
+var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";
+
+var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n#endif";
+
+var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = uv2;\n#endif";
+
+var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n#endif\n";
+
+var cube_frag = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldPosition;\nvoid main() {\n\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\n\tgl_FragColor.a *= opacity;\n}\n";
+
+var cube_vert = "varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}\n";
+
+var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( gl_FragCoord.z ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\n\t#endif\n}\n";
+
+var depth_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n}\n";
+
+var distanceRGBA_frag = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}\n";
+
+var distanceRGBA_vert = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}\n";
+
+var equirect_frag = "uniform sampler2D tEquirect;\nvarying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldPosition );\n\tvec2 sampleUV;\n\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n}\n";
+
+var equirect_vert = "varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}\n";
+
+var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";
+
+var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\tvLineDistance = scale * lineDistance;\n\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}\n";
+
+var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";
+
+var meshbasic_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}\n";
+
+var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";
+
+var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
+
+var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_template>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";
+
+var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
+
+var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <lights_pars>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_template>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";
+
+var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
+
+var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\nvoid main() {\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}\n";
+
+var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}\n";
+
+var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";
+
+var points_vert = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#ifdef USE_SIZEATTENUATION\n\t\tgl_PointSize = size * ( scale / - mvPosition.z );\n\t#else\n\t\tgl_PointSize = size;\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
+
+var shadow_frag = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <fog_fragment>\n}\n";
+
+var shadow_vert = "#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
+
+var ShaderChunk = {
+	alphamap_fragment: alphamap_fragment,
+	alphamap_pars_fragment: alphamap_pars_fragment,
+	alphatest_fragment: alphatest_fragment,
+	aomap_fragment: aomap_fragment,
+	aomap_pars_fragment: aomap_pars_fragment,
+	begin_vertex: begin_vertex,
+	beginnormal_vertex: beginnormal_vertex,
+	bsdfs: bsdfs,
+	bumpmap_pars_fragment: bumpmap_pars_fragment,
+	clipping_planes_fragment: clipping_planes_fragment,
+	clipping_planes_pars_fragment: clipping_planes_pars_fragment,
+	clipping_planes_pars_vertex: clipping_planes_pars_vertex,
+	clipping_planes_vertex: clipping_planes_vertex,
+	color_fragment: color_fragment,
+	color_pars_fragment: color_pars_fragment,
+	color_pars_vertex: color_pars_vertex,
+	color_vertex: color_vertex,
+	common: common,
+	cube_uv_reflection_fragment: cube_uv_reflection_fragment,
+	defaultnormal_vertex: defaultnormal_vertex,
+	displacementmap_pars_vertex: displacementmap_pars_vertex,
+	displacementmap_vertex: displacementmap_vertex,
+	emissivemap_fragment: emissivemap_fragment,
+	emissivemap_pars_fragment: emissivemap_pars_fragment,
+	encodings_fragment: encodings_fragment,
+	encodings_pars_fragment: encodings_pars_fragment,
+	envmap_fragment: envmap_fragment,
+	envmap_pars_fragment: envmap_pars_fragment,
+	envmap_pars_vertex: envmap_pars_vertex,
+	envmap_vertex: envmap_vertex,
+	fog_vertex: fog_vertex,
+	fog_pars_vertex: fog_pars_vertex,
+	fog_fragment: fog_fragment,
+	fog_pars_fragment: fog_pars_fragment,
+	gradientmap_pars_fragment: gradientmap_pars_fragment,
+	lightmap_fragment: lightmap_fragment,
+	lightmap_pars_fragment: lightmap_pars_fragment,
+	lights_lambert_vertex: lights_lambert_vertex,
+	lights_pars: lights_pars,
+	lights_phong_fragment: lights_phong_fragment,
+	lights_phong_pars_fragment: lights_phong_pars_fragment,
+	lights_physical_fragment: lights_physical_fragment,
+	lights_physical_pars_fragment: lights_physical_pars_fragment,
+	lights_template: lights_template,
+	logdepthbuf_fragment: logdepthbuf_fragment,
+	logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
+	logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
+	logdepthbuf_vertex: logdepthbuf_vertex,
+	map_fragment: map_fragment,
+	map_pars_fragment: map_pars_fragment,
+	map_particle_fragment: map_particle_fragment,
+	map_particle_pars_fragment: map_particle_pars_fragment,
+	metalnessmap_fragment: metalnessmap_fragment,
+	metalnessmap_pars_fragment: metalnessmap_pars_fragment,
+	morphnormal_vertex: morphnormal_vertex,
+	morphtarget_pars_vertex: morphtarget_pars_vertex,
+	morphtarget_vertex: morphtarget_vertex,
+	normal_fragment: normal_fragment,
+	normalmap_pars_fragment: normalmap_pars_fragment,
+	packing: packing,
+	premultiplied_alpha_fragment: premultiplied_alpha_fragment,
+	project_vertex: project_vertex,
+	dithering_fragment: dithering_fragment,
+	dithering_pars_fragment: dithering_pars_fragment,
+	roughnessmap_fragment: roughnessmap_fragment,
+	roughnessmap_pars_fragment: roughnessmap_pars_fragment,
+	shadowmap_pars_fragment: shadowmap_pars_fragment,
+	shadowmap_pars_vertex: shadowmap_pars_vertex,
+	shadowmap_vertex: shadowmap_vertex,
+	shadowmask_pars_fragment: shadowmask_pars_fragment,
+	skinbase_vertex: skinbase_vertex,
+	skinning_pars_vertex: skinning_pars_vertex,
+	skinning_vertex: skinning_vertex,
+	skinnormal_vertex: skinnormal_vertex,
+	specularmap_fragment: specularmap_fragment,
+	specularmap_pars_fragment: specularmap_pars_fragment,
+	tonemapping_fragment: tonemapping_fragment,
+	tonemapping_pars_fragment: tonemapping_pars_fragment,
+	uv_pars_fragment: uv_pars_fragment,
+	uv_pars_vertex: uv_pars_vertex,
+	uv_vertex: uv_vertex,
+	uv2_pars_fragment: uv2_pars_fragment,
+	uv2_pars_vertex: uv2_pars_vertex,
+	uv2_vertex: uv2_vertex,
+	worldpos_vertex: worldpos_vertex,
+
+	cube_frag: cube_frag,
+	cube_vert: cube_vert,
+	depth_frag: depth_frag,
+	depth_vert: depth_vert,
+	distanceRGBA_frag: distanceRGBA_frag,
+	distanceRGBA_vert: distanceRGBA_vert,
+	equirect_frag: equirect_frag,
+	equirect_vert: equirect_vert,
+	linedashed_frag: linedashed_frag,
+	linedashed_vert: linedashed_vert,
+	meshbasic_frag: meshbasic_frag,
+	meshbasic_vert: meshbasic_vert,
+	meshlambert_frag: meshlambert_frag,
+	meshlambert_vert: meshlambert_vert,
+	meshphong_frag: meshphong_frag,
+	meshphong_vert: meshphong_vert,
+	meshphysical_frag: meshphysical_frag,
+	meshphysical_vert: meshphysical_vert,
+	normal_frag: normal_frag,
+	normal_vert: normal_vert,
+	points_frag: points_frag,
+	points_vert: points_vert,
+	shadow_frag: shadow_frag,
+	shadow_vert: shadow_vert
+};
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ * @author mikael emtinger / http://gomo.se/
+ */
+
+var ShaderLib = {
+
+	basic: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.common,
+			UniformsLib.specularmap,
+			UniformsLib.envmap,
+			UniformsLib.aomap,
+			UniformsLib.lightmap,
+			UniformsLib.fog
+		] ),
+
+		vertexShader: ShaderChunk.meshbasic_vert,
+		fragmentShader: ShaderChunk.meshbasic_frag
+
+	},
+
+	lambert: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.common,
+			UniformsLib.specularmap,
+			UniformsLib.envmap,
+			UniformsLib.aomap,
+			UniformsLib.lightmap,
+			UniformsLib.emissivemap,
+			UniformsLib.fog,
+			UniformsLib.lights,
+			{
+				emissive: { value: new Color( 0x000000 ) }
+			}
+		] ),
+
+		vertexShader: ShaderChunk.meshlambert_vert,
+		fragmentShader: ShaderChunk.meshlambert_frag
+
+	},
+
+	phong: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.common,
+			UniformsLib.specularmap,
+			UniformsLib.envmap,
+			UniformsLib.aomap,
+			UniformsLib.lightmap,
+			UniformsLib.emissivemap,
+			UniformsLib.bumpmap,
+			UniformsLib.normalmap,
+			UniformsLib.displacementmap,
+			UniformsLib.gradientmap,
+			UniformsLib.fog,
+			UniformsLib.lights,
+			{
+				emissive: { value: new Color( 0x000000 ) },
+				specular: { value: new Color( 0x111111 ) },
+				shininess: { value: 30 }
+			}
+		] ),
+
+		vertexShader: ShaderChunk.meshphong_vert,
+		fragmentShader: ShaderChunk.meshphong_frag
+
+	},
+
+	standard: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.common,
+			UniformsLib.envmap,
+			UniformsLib.aomap,
+			UniformsLib.lightmap,
+			UniformsLib.emissivemap,
+			UniformsLib.bumpmap,
+			UniformsLib.normalmap,
+			UniformsLib.displacementmap,
+			UniformsLib.roughnessmap,
+			UniformsLib.metalnessmap,
+			UniformsLib.fog,
+			UniformsLib.lights,
+			{
+				emissive: { value: new Color( 0x000000 ) },
+				roughness: { value: 0.5 },
+				metalness: { value: 0.5 },
+				envMapIntensity: { value: 1 } // temporary
+			}
+		] ),
+
+		vertexShader: ShaderChunk.meshphysical_vert,
+		fragmentShader: ShaderChunk.meshphysical_frag
+
+	},
+
+	points: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.points,
+			UniformsLib.fog
+		] ),
+
+		vertexShader: ShaderChunk.points_vert,
+		fragmentShader: ShaderChunk.points_frag
+
+	},
+
+	dashed: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.common,
+			UniformsLib.fog,
+			{
+				scale: { value: 1 },
+				dashSize: { value: 1 },
+				totalSize: { value: 2 }
+			}
+		] ),
+
+		vertexShader: ShaderChunk.linedashed_vert,
+		fragmentShader: ShaderChunk.linedashed_frag
+
+	},
+
+	depth: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.common,
+			UniformsLib.displacementmap
+		] ),
+
+		vertexShader: ShaderChunk.depth_vert,
+		fragmentShader: ShaderChunk.depth_frag
+
+	},
+
+	normal: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.common,
+			UniformsLib.bumpmap,
+			UniformsLib.normalmap,
+			UniformsLib.displacementmap,
+			{
+				opacity: { value: 1.0 }
+			}
+		] ),
+
+		vertexShader: ShaderChunk.normal_vert,
+		fragmentShader: ShaderChunk.normal_frag
+
+	},
+
+	/* -------------------------------------------------------------------------
+	//	Cube map shader
+	 ------------------------------------------------------------------------- */
+
+	cube: {
+
+		uniforms: {
+			tCube: { value: null },
+			tFlip: { value: - 1 },
+			opacity: { value: 1.0 }
+		},
+
+		vertexShader: ShaderChunk.cube_vert,
+		fragmentShader: ShaderChunk.cube_frag
+
+	},
+
+	equirect: {
+
+		uniforms: {
+			tEquirect: { value: null },
+		},
+
+		vertexShader: ShaderChunk.equirect_vert,
+		fragmentShader: ShaderChunk.equirect_frag
+
+	},
+
+	distanceRGBA: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.common,
+			UniformsLib.displacementmap,
+			{
+				referencePosition: { value: new Vector3() },
+				nearDistance: { value: 1 },
+				farDistance: { value: 1000 }
+			}
+		] ),
+
+		vertexShader: ShaderChunk.distanceRGBA_vert,
+		fragmentShader: ShaderChunk.distanceRGBA_frag
+
+	},
+
+	shadow: {
+
+		uniforms: UniformsUtils.merge( [
+			UniformsLib.lights,
+			UniformsLib.fog,
+			{
+				color: { value: new Color( 0x00000 ) },
+				opacity: { value: 1.0 }
+			},
+		] ),
+
+		vertexShader: ShaderChunk.shadow_vert,
+		fragmentShader: ShaderChunk.shadow_frag
+
+	}
+
+};
+
+ShaderLib.physical = {
+
+	uniforms: UniformsUtils.merge( [
+		ShaderLib.standard.uniforms,
+		{
+			clearCoat: { value: 0 },
+			clearCoatRoughness: { value: 0 }
+		}
+	] ),
+
+	vertexShader: ShaderChunk.meshphysical_vert,
+	fragmentShader: ShaderChunk.meshphysical_frag
+
+};
+
+/**
+ * @author bhouston / http://clara.io
+ */
+
+function Box2( min, max ) {
+
+	this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );
+	this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );
+
+}
+
+Object.assign( Box2.prototype, {
+
+	set: function ( min, max ) {
+
+		this.min.copy( min );
+		this.max.copy( max );
+
+		return this;
+
+	},
+
+	setFromPoints: function ( points ) {
+
+		this.makeEmpty();
+
+		for ( var i = 0, il = points.length; i < il; i ++ ) {
+
+			this.expandByPoint( points[ i ] );
+
+		}
+
+		return this;
+
+	},
+
+	setFromCenterAndSize: function () {
+
+		var v1 = new Vector2();
+
+		return function setFromCenterAndSize( center, size ) {
+
+			var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
+			this.min.copy( center ).sub( halfSize );
+			this.max.copy( center ).add( halfSize );
+
+			return this;
+
+		};
+
+	}(),
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( box ) {
+
+		this.min.copy( box.min );
+		this.max.copy( box.max );
+
+		return this;
+
+	},
+
+	makeEmpty: function () {
+
+		this.min.x = this.min.y = + Infinity;
+		this.max.x = this.max.y = - Infinity;
+
+		return this;
+
+	},
+
+	isEmpty: function () {
+
+		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
+
+		return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );
+
+	},
+
+	getCenter: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector2();
+		return this.isEmpty() ? result.set( 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );
+
+	},
+
+	getSize: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector2();
+		return this.isEmpty() ? result.set( 0, 0 ) : result.subVectors( this.max, this.min );
+
+	},
+
+	expandByPoint: function ( point ) {
+
+		this.min.min( point );
+		this.max.max( point );
+
+		return this;
+
+	},
+
+	expandByVector: function ( vector ) {
+
+		this.min.sub( vector );
+		this.max.add( vector );
+
+		return this;
+
+	},
+
+	expandByScalar: function ( scalar ) {
+
+		this.min.addScalar( - scalar );
+		this.max.addScalar( scalar );
+
+		return this;
+
+	},
+
+	containsPoint: function ( point ) {
+
+		return point.x < this.min.x || point.x > this.max.x ||
+			point.y < this.min.y || point.y > this.max.y ? false : true;
+
+	},
+
+	containsBox: function ( box ) {
+
+		return this.min.x <= box.min.x && box.max.x <= this.max.x &&
+			this.min.y <= box.min.y && box.max.y <= this.max.y;
+
+	},
+
+	getParameter: function ( point, optionalTarget ) {
+
+		// This can potentially have a divide by zero if the box
+		// has a size dimension of 0.
+
+		var result = optionalTarget || new Vector2();
+
+		return result.set(
+			( point.x - this.min.x ) / ( this.max.x - this.min.x ),
+			( point.y - this.min.y ) / ( this.max.y - this.min.y )
+		);
+
+	},
+
+	intersectsBox: function ( box ) {
+
+		// using 4 splitting planes to rule out intersections
+
+		return box.max.x < this.min.x || box.min.x > this.max.x ||
+			box.max.y < this.min.y || box.min.y > this.max.y ? false : true;
+
+	},
+
+	clampPoint: function ( point, optionalTarget ) {
+
+		var result = optionalTarget || new Vector2();
+		return result.copy( point ).clamp( this.min, this.max );
+
+	},
+
+	distanceToPoint: function () {
+
+		var v1 = new Vector2();
+
+		return function distanceToPoint( point ) {
+
+			var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
+			return clampedPoint.sub( point ).length();
+
+		};
+
+	}(),
+
+	intersect: function ( box ) {
+
+		this.min.max( box.min );
+		this.max.min( box.max );
+
+		return this;
+
+	},
+
+	union: function ( box ) {
+
+		this.min.min( box.min );
+		this.max.max( box.max );
+
+		return this;
+
+	},
+
+	translate: function ( offset ) {
+
+		this.min.add( offset );
+		this.max.add( offset );
+
+		return this;
+
+	},
+
+	equals: function ( box ) {
+
+		return box.min.equals( this.min ) && box.max.equals( this.max );
+
+	}
+
+} );
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function WebGLFlareRenderer( renderer, gl, state, textures, capabilities ) {
+
+	var vertexBuffer, elementBuffer;
+	var shader, program, attributes, uniforms;
+
+	var tempTexture, occlusionTexture;
+
+	function init() {
+
+		var vertices = new Float32Array( [
+			- 1, - 1, 0, 0,
+			  1, - 1, 1, 0,
+			  1, 1, 1, 1,
+			- 1, 1, 0, 1
+		] );
+
+		var faces = new Uint16Array( [
+			0, 1, 2,
+			0, 2, 3
+		] );
+
+		// buffers
+
+		vertexBuffer = gl.createBuffer();
+		elementBuffer = gl.createBuffer();
+
+		gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
+		gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );
+
+		gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
+		gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );
+
+		// textures
+
+		tempTexture = gl.createTexture();
+		occlusionTexture = gl.createTexture();
+
+		state.bindTexture( gl.TEXTURE_2D, tempTexture );
+		gl.texImage2D( gl.TEXTURE_2D, 0, gl.RGB, 16, 16, 0, gl.RGB, gl.UNSIGNED_BYTE, null );
+		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE );
+		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE );
+		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
+		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST );
+
+		state.bindTexture( gl.TEXTURE_2D, occlusionTexture );
+		gl.texImage2D( gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNED_BYTE, null );
+		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE );
+		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE );
+		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
+		gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST );
+
+		shader = {
+
+			vertexShader: [
+
+				'uniform lowp int renderType;',
+
+				'uniform vec3 screenPosition;',
+				'uniform vec2 scale;',
+				'uniform float rotation;',
+
+				'uniform sampler2D occlusionMap;',
+
+				'attribute vec2 position;',
+				'attribute vec2 uv;',
+
+				'varying vec2 vUV;',
+				'varying float vVisibility;',
+
+				'void main() {',
+
+				'	vUV = uv;',
+
+				'	vec2 pos = position;',
+
+				'	if ( renderType == 2 ) {',
+
+				'		vec4 visibility = texture2D( occlusionMap, vec2( 0.1, 0.1 ) );',
+				'		visibility += texture2D( occlusionMap, vec2( 0.5, 0.1 ) );',
+				'		visibility += texture2D( occlusionMap, vec2( 0.9, 0.1 ) );',
+				'		visibility += texture2D( occlusionMap, vec2( 0.9, 0.5 ) );',
+				'		visibility += texture2D( occlusionMap, vec2( 0.9, 0.9 ) );',
+				'		visibility += texture2D( occlusionMap, vec2( 0.5, 0.9 ) );',
+				'		visibility += texture2D( occlusionMap, vec2( 0.1, 0.9 ) );',
+				'		visibility += texture2D( occlusionMap, vec2( 0.1, 0.5 ) );',
+				'		visibility += texture2D( occlusionMap, vec2( 0.5, 0.5 ) );',
+
+				'		vVisibility =        visibility.r / 9.0;',
+				'		vVisibility *= 1.0 - visibility.g / 9.0;',
+				'		vVisibility *=       visibility.b / 9.0;',
+				'		vVisibility *= 1.0 - visibility.a / 9.0;',
+
+				'		pos.x = cos( rotation ) * position.x - sin( rotation ) * position.y;',
+				'		pos.y = sin( rotation ) * position.x + cos( rotation ) * position.y;',
+
+				'	}',
+
+				'	gl_Position = vec4( ( pos * scale + screenPosition.xy ).xy, screenPosition.z, 1.0 );',
+
+				'}'
+
+			].join( '\n' ),
+
+			fragmentShader: [
+
+				'uniform lowp int renderType;',
+
+				'uniform sampler2D map;',
+				'uniform float opacity;',
+				'uniform vec3 color;',
+
+				'varying vec2 vUV;',
+				'varying float vVisibility;',
+
+				'void main() {',
+
+				// pink square
+
+				'	if ( renderType == 0 ) {',
+
+				'		gl_FragColor = vec4( 1.0, 0.0, 1.0, 0.0 );',
+
+				// restore
+
+				'	} else if ( renderType == 1 ) {',
+
+				'		gl_FragColor = texture2D( map, vUV );',
+
+				// flare
+
+				'	} else {',
+
+				'		vec4 texture = texture2D( map, vUV );',
+				'		texture.a *= opacity * vVisibility;',
+				'		gl_FragColor = texture;',
+				'		gl_FragColor.rgb *= color;',
+
+				'	}',
+
+				'}'
+
+			].join( '\n' )
+
+		};
+
+		program = createProgram( shader );
+
+		attributes = {
+			vertex: gl.getAttribLocation( program, 'position' ),
+			uv: gl.getAttribLocation( program, 'uv' )
+		};
+
+		uniforms = {
+			renderType: gl.getUniformLocation( program, 'renderType' ),
+			map: gl.getUniformLocation( program, 'map' ),
+			occlusionMap: gl.getUniformLocation( program, 'occlusionMap' ),
+			opacity: gl.getUniformLocation( program, 'opacity' ),
+			color: gl.getUniformLocation( program, 'color' ),
+			scale: gl.getUniformLocation( program, 'scale' ),
+			rotation: gl.getUniformLocation( program, 'rotation' ),
+			screenPosition: gl.getUniformLocation( program, 'screenPosition' )
+		};
+
+	}
+
+	/*
+	 * Render lens flares
+	 * Method: renders 16x16 0xff00ff-colored points scattered over the light source area,
+	 *         reads these back and calculates occlusion.
+	 */
+
+	this.render = function ( flares, scene, camera, viewport ) {
+
+		if ( flares.length === 0 ) return;
+
+		var tempPosition = new Vector3();
+
+		var invAspect = viewport.w / viewport.z,
+			halfViewportWidth = viewport.z * 0.5,
+			halfViewportHeight = viewport.w * 0.5;
+
+		var size = 16 / viewport.w,
+			scale = new Vector2( size * invAspect, size );
+
+		var screenPosition = new Vector3( 1, 1, 0 ),
+			screenPositionPixels = new Vector2( 1, 1 );
+
+		var validArea = new Box2();
+
+		validArea.min.set( viewport.x, viewport.y );
+		validArea.max.set( viewport.x + ( viewport.z - 16 ), viewport.y + ( viewport.w - 16 ) );
+
+		if ( program === undefined ) {
+
+			init();
+
+		}
+
+		state.useProgram( program );
+
+		state.initAttributes();
+		state.enableAttribute( attributes.vertex );
+		state.enableAttribute( attributes.uv );
+		state.disableUnusedAttributes();
+
+		// loop through all lens flares to update their occlusion and positions
+		// setup gl and common used attribs/uniforms
+
+		gl.uniform1i( uniforms.occlusionMap, 0 );
+		gl.uniform1i( uniforms.map, 1 );
+
+		gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
+		gl.vertexAttribPointer( attributes.vertex, 2, gl.FLOAT, false, 2 * 8, 0 );
+		gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );
+
+		gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
+
+		state.disable( gl.CULL_FACE );
+		state.buffers.depth.setMask( false );
+
+		for ( var i = 0, l = flares.length; i < l; i ++ ) {
+
+			size = 16 / viewport.w;
+			scale.set( size * invAspect, size );
+
+			// calc object screen position
+
+			var flare = flares[ i ];
+
+			tempPosition.set( flare.matrixWorld.elements[ 12 ], flare.matrixWorld.elements[ 13 ], flare.matrixWorld.elements[ 14 ] );
+
+			tempPosition.applyMatrix4( camera.matrixWorldInverse );
+			tempPosition.applyMatrix4( camera.projectionMatrix );
+
+			// setup arrays for gl programs
+
+			screenPosition.copy( tempPosition );
+
+			// horizontal and vertical coordinate of the lower left corner of the pixels to copy
+
+			screenPositionPixels.x = viewport.x + ( screenPosition.x * halfViewportWidth ) + halfViewportWidth - 8;
+			screenPositionPixels.y = viewport.y + ( screenPosition.y * halfViewportHeight ) + halfViewportHeight - 8;
+
+			// screen cull
+
+			if ( validArea.containsPoint( screenPositionPixels ) === true ) {
+
+				// save current RGB to temp texture
+
+				state.activeTexture( gl.TEXTURE0 );
+				state.bindTexture( gl.TEXTURE_2D, null );
+				state.activeTexture( gl.TEXTURE1 );
+				state.bindTexture( gl.TEXTURE_2D, tempTexture );
+				gl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGB, screenPositionPixels.x, screenPositionPixels.y, 16, 16, 0 );
+
+
+				// render pink quad
+
+				gl.uniform1i( uniforms.renderType, 0 );
+				gl.uniform2f( uniforms.scale, scale.x, scale.y );
+				gl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z );
+
+				state.disable( gl.BLEND );
+				state.enable( gl.DEPTH_TEST );
+
+				gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );
+
+
+				// copy result to occlusionMap
+
+				state.activeTexture( gl.TEXTURE0 );
+				state.bindTexture( gl.TEXTURE_2D, occlusionTexture );
+				gl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGBA, screenPositionPixels.x, screenPositionPixels.y, 16, 16, 0 );
+
+
+				// restore graphics
+
+				gl.uniform1i( uniforms.renderType, 1 );
+				state.disable( gl.DEPTH_TEST );
+
+				state.activeTexture( gl.TEXTURE1 );
+				state.bindTexture( gl.TEXTURE_2D, tempTexture );
+				gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );
+
+
+				// update object positions
+
+				flare.positionScreen.copy( screenPosition );
+
+				if ( flare.customUpdateCallback ) {
+
+					flare.customUpdateCallback( flare );
+
+				} else {
+
+					flare.updateLensFlares();
+
+				}
+
+				// render flares
+
+				gl.uniform1i( uniforms.renderType, 2 );
+				state.enable( gl.BLEND );
+
+				for ( var j = 0, jl = flare.lensFlares.length; j < jl; j ++ ) {
+
+					var sprite = flare.lensFlares[ j ];
+
+					if ( sprite.opacity > 0.001 && sprite.scale > 0.001 ) {
+
+						screenPosition.x = sprite.x;
+						screenPosition.y = sprite.y;
+						screenPosition.z = sprite.z;
+
+						size = sprite.size * sprite.scale / viewport.w;
+
+						scale.x = size * invAspect;
+						scale.y = size;
+
+						gl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z );
+						gl.uniform2f( uniforms.scale, scale.x, scale.y );
+						gl.uniform1f( uniforms.rotation, sprite.rotation );
+
+						gl.uniform1f( uniforms.opacity, sprite.opacity );
+						gl.uniform3f( uniforms.color, sprite.color.r, sprite.color.g, sprite.color.b );
+
+						state.setBlending( sprite.blending, sprite.blendEquation, sprite.blendSrc, sprite.blendDst );
+
+						textures.setTexture2D( sprite.texture, 1 );
+
+						gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );
+
+					}
+
+				}
+
+			}
+
+		}
+
+		// restore gl
+
+		state.enable( gl.CULL_FACE );
+		state.enable( gl.DEPTH_TEST );
+		state.buffers.depth.setMask( true );
+
+		state.reset();
+
+	};
+
+	function createProgram( shader ) {
+
+		var program = gl.createProgram();
+
+		var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );
+		var vertexShader = gl.createShader( gl.VERTEX_SHADER );
+
+		var prefix = 'precision ' + capabilities.precision + ' float;\n';
+
+		gl.shaderSource( fragmentShader, prefix + shader.fragmentShader );
+		gl.shaderSource( vertexShader, prefix + shader.vertexShader );
+
+		gl.compileShader( fragmentShader );
+		gl.compileShader( vertexShader );
+
+		gl.attachShader( program, fragmentShader );
+		gl.attachShader( program, vertexShader );
+
+		gl.linkProgram( program );
+
+		return program;
+
+	}
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {
+
+	Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
+
+	this.needsUpdate = true;
+
+}
+
+CanvasTexture.prototype = Object.create( Texture.prototype );
+CanvasTexture.prototype.constructor = CanvasTexture;
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function WebGLSpriteRenderer( renderer, gl, state, textures, capabilities ) {
+
+	var vertexBuffer, elementBuffer;
+	var program, attributes, uniforms;
+
+	var texture;
+
+	// decompose matrixWorld
+
+	var spritePosition = new Vector3();
+	var spriteRotation = new Quaternion();
+	var spriteScale = new Vector3();
+
+	function init() {
+
+		var vertices = new Float32Array( [
+			- 0.5, - 0.5, 0, 0,
+			  0.5, - 0.5, 1, 0,
+			  0.5, 0.5, 1, 1,
+			- 0.5, 0.5, 0, 1
+		] );
+
+		var faces = new Uint16Array( [
+			0, 1, 2,
+			0, 2, 3
+		] );
+
+		vertexBuffer = gl.createBuffer();
+		elementBuffer = gl.createBuffer();
+
+		gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
+		gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );
+
+		gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
+		gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );
+
+		program = createProgram();
+
+		attributes = {
+			position: gl.getAttribLocation( program, 'position' ),
+			uv: gl.getAttribLocation( program, 'uv' )
+		};
+
+		uniforms = {
+			uvOffset: gl.getUniformLocation( program, 'uvOffset' ),
+			uvScale: gl.getUniformLocation( program, 'uvScale' ),
+
+			rotation: gl.getUniformLocation( program, 'rotation' ),
+			scale: gl.getUniformLocation( program, 'scale' ),
+
+			color: gl.getUniformLocation( program, 'color' ),
+			map: gl.getUniformLocation( program, 'map' ),
+			opacity: gl.getUniformLocation( program, 'opacity' ),
+
+			modelViewMatrix: gl.getUniformLocation( program, 'modelViewMatrix' ),
+			projectionMatrix: gl.getUniformLocation( program, 'projectionMatrix' ),
+
+			fogType: gl.getUniformLocation( program, 'fogType' ),
+			fogDensity: gl.getUniformLocation( program, 'fogDensity' ),
+			fogNear: gl.getUniformLocation( program, 'fogNear' ),
+			fogFar: gl.getUniformLocation( program, 'fogFar' ),
+			fogColor: gl.getUniformLocation( program, 'fogColor' ),
+			fogDepth: gl.getUniformLocation( program, 'fogDepth' ),
+
+			alphaTest: gl.getUniformLocation( program, 'alphaTest' )
+		};
+
+		var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
+		canvas.width = 8;
+		canvas.height = 8;
+
+		var context = canvas.getContext( '2d' );
+		context.fillStyle = 'white';
+		context.fillRect( 0, 0, 8, 8 );
+
+		texture = new CanvasTexture( canvas );
+
+	}
+
+	this.render = function ( sprites, scene, camera ) {
+
+		if ( sprites.length === 0 ) return;
+
+		// setup gl
+
+		if ( program === undefined ) {
+
+			init();
+
+		}
+
+		state.useProgram( program );
+
+		state.initAttributes();
+		state.enableAttribute( attributes.position );
+		state.enableAttribute( attributes.uv );
+		state.disableUnusedAttributes();
+
+		state.disable( gl.CULL_FACE );
+		state.enable( gl.BLEND );
+
+		gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
+		gl.vertexAttribPointer( attributes.position, 2, gl.FLOAT, false, 2 * 8, 0 );
+		gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );
+
+		gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
+
+		gl.uniformMatrix4fv( uniforms.projectionMatrix, false, camera.projectionMatrix.elements );
+
+		state.activeTexture( gl.TEXTURE0 );
+		gl.uniform1i( uniforms.map, 0 );
+
+		var oldFogType = 0;
+		var sceneFogType = 0;
+		var fog = scene.fog;
+
+		if ( fog ) {
+
+			gl.uniform3f( uniforms.fogColor, fog.color.r, fog.color.g, fog.color.b );
+
+			if ( fog.isFog ) {
+
+				gl.uniform1f( uniforms.fogNear, fog.near );
+				gl.uniform1f( uniforms.fogFar, fog.far );
+
+				gl.uniform1i( uniforms.fogType, 1 );
+				oldFogType = 1;
+				sceneFogType = 1;
+
+			} else if ( fog.isFogExp2 ) {
+
+				gl.uniform1f( uniforms.fogDensity, fog.density );
+
+				gl.uniform1i( uniforms.fogType, 2 );
+				oldFogType = 2;
+				sceneFogType = 2;
+
+			}
+
+		} else {
+
+			gl.uniform1i( uniforms.fogType, 0 );
+			oldFogType = 0;
+			sceneFogType = 0;
+
+		}
+
+
+		// update positions and sort
+
+		for ( var i = 0, l = sprites.length; i < l; i ++ ) {
+
+			var sprite = sprites[ i ];
+
+			sprite.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, sprite.matrixWorld );
+			sprite.z = - sprite.modelViewMatrix.elements[ 14 ];
+
+		}
+
+		sprites.sort( painterSortStable );
+
+		// render all sprites
+
+		var scale = [];
+
+		for ( var i = 0, l = sprites.length; i < l; i ++ ) {
+
+			var sprite = sprites[ i ];
+			var material = sprite.material;
+
+			if ( material.visible === false ) continue;
+
+			sprite.onBeforeRender( renderer, scene, camera, undefined, material, undefined );
+
+			gl.uniform1f( uniforms.alphaTest, material.alphaTest );
+			gl.uniformMatrix4fv( uniforms.modelViewMatrix, false, sprite.modelViewMatrix.elements );
+
+			sprite.matrixWorld.decompose( spritePosition, spriteRotation, spriteScale );
+
+			scale[ 0 ] = spriteScale.x;
+			scale[ 1 ] = spriteScale.y;
+
+			var fogType = 0;
+
+			if ( scene.fog && material.fog ) {
+
+				fogType = sceneFogType;
+
+			}
+
+			if ( oldFogType !== fogType ) {
+
+				gl.uniform1i( uniforms.fogType, fogType );
+				oldFogType = fogType;
+
+			}
+
+			if ( material.map !== null ) {
+
+				gl.uniform2f( uniforms.uvOffset, material.map.offset.x, material.map.offset.y );
+				gl.uniform2f( uniforms.uvScale, material.map.repeat.x, material.map.repeat.y );
+
+			} else {
+
+				gl.uniform2f( uniforms.uvOffset, 0, 0 );
+				gl.uniform2f( uniforms.uvScale, 1, 1 );
+
+			}
+
+			gl.uniform1f( uniforms.opacity, material.opacity );
+			gl.uniform3f( uniforms.color, material.color.r, material.color.g, material.color.b );
+
+			gl.uniform1f( uniforms.rotation, material.rotation );
+			gl.uniform2fv( uniforms.scale, scale );
+
+			state.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );
+			state.buffers.depth.setTest( material.depthTest );
+			state.buffers.depth.setMask( material.depthWrite );
+			state.buffers.color.setMask( material.colorWrite );
+
+			textures.setTexture2D( material.map || texture, 0 );
+
+			gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );
+
+			sprite.onAfterRender( renderer, scene, camera, undefined, material, undefined );
+
+		}
+
+		// restore gl
+
+		state.enable( gl.CULL_FACE );
+
+		state.reset();
+
+	};
+
+	function createProgram() {
+
+		var program = gl.createProgram();
+
+		var vertexShader = gl.createShader( gl.VERTEX_SHADER );
+		var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );
+
+		gl.shaderSource( vertexShader, [
+
+			'precision ' + capabilities.precision + ' float;',
+
+			'#define SHADER_NAME ' + 'SpriteMaterial',
+
+			'uniform mat4 modelViewMatrix;',
+			'uniform mat4 projectionMatrix;',
+			'uniform float rotation;',
+			'uniform vec2 scale;',
+			'uniform vec2 uvOffset;',
+			'uniform vec2 uvScale;',
+
+			'attribute vec2 position;',
+			'attribute vec2 uv;',
+
+			'varying vec2 vUV;',
+			'varying float fogDepth;',
+
+			'void main() {',
+
+			'	vUV = uvOffset + uv * uvScale;',
+
+			'	vec2 alignedPosition = position * scale;',
+
+			'	vec2 rotatedPosition;',
+			'	rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;',
+			'	rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;',
+
+			'	vec4 mvPosition;',
+
+			'	mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );',
+			'	mvPosition.xy += rotatedPosition;',
+
+			'	gl_Position = projectionMatrix * mvPosition;',
+
+			'	fogDepth = - mvPosition.z;',
+
+			'}'
+
+		].join( '\n' ) );
+
+		gl.shaderSource( fragmentShader, [
+
+			'precision ' + capabilities.precision + ' float;',
+
+			'#define SHADER_NAME ' + 'SpriteMaterial',
+
+			'uniform vec3 color;',
+			'uniform sampler2D map;',
+			'uniform float opacity;',
+
+			'uniform int fogType;',
+			'uniform vec3 fogColor;',
+			'uniform float fogDensity;',
+			'uniform float fogNear;',
+			'uniform float fogFar;',
+			'uniform float alphaTest;',
+
+			'varying vec2 vUV;',
+			'varying float fogDepth;',
+
+			'void main() {',
+
+			'	vec4 texture = texture2D( map, vUV );',
+
+			'	gl_FragColor = vec4( color * texture.xyz, texture.a * opacity );',
+
+			'	if ( gl_FragColor.a < alphaTest ) discard;',
+
+			'	if ( fogType > 0 ) {',
+
+			'		float fogFactor = 0.0;',
+
+			'		if ( fogType == 1 ) {',
+
+			'			fogFactor = smoothstep( fogNear, fogFar, fogDepth );',
+
+			'		} else {',
+
+			'			const float LOG2 = 1.442695;',
+			'			fogFactor = exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 );',
+			'			fogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );',
+
+			'		}',
+
+			'		gl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );',
+
+			'	}',
+
+			'}'
+
+		].join( '\n' ) );
+
+		gl.compileShader( vertexShader );
+		gl.compileShader( fragmentShader );
+
+		gl.attachShader( program, vertexShader );
+		gl.attachShader( program, fragmentShader );
+
+		gl.linkProgram( program );
+
+		return program;
+
+	}
+
+	function painterSortStable( a, b ) {
+
+		if ( a.renderOrder !== b.renderOrder ) {
+
+			return a.renderOrder - b.renderOrder;
+
+		} else if ( a.z !== b.z ) {
+
+			return b.z - a.z;
+
+		} else {
+
+			return b.id - a.id;
+
+		}
+
+	}
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+var materialId = 0;
+
+function Material() {
+
+	Object.defineProperty( this, 'id', { value: materialId ++ } );
+
+	this.uuid = _Math.generateUUID();
+
+	this.name = '';
+	this.type = 'Material';
+
+	this.fog = true;
+	this.lights = true;
+
+	this.blending = NormalBlending;
+	this.side = FrontSide;
+	this.flatShading = false;
+	this.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors
+
+	this.opacity = 1;
+	this.transparent = false;
+
+	this.blendSrc = SrcAlphaFactor;
+	this.blendDst = OneMinusSrcAlphaFactor;
+	this.blendEquation = AddEquation;
+	this.blendSrcAlpha = null;
+	this.blendDstAlpha = null;
+	this.blendEquationAlpha = null;
+
+	this.depthFunc = LessEqualDepth;
+	this.depthTest = true;
+	this.depthWrite = true;
+
+	this.clippingPlanes = null;
+	this.clipIntersection = false;
+	this.clipShadows = false;
+
+	this.colorWrite = true;
+
+	this.precision = null; // override the renderer's default precision for this material
+
+	this.polygonOffset = false;
+	this.polygonOffsetFactor = 0;
+	this.polygonOffsetUnits = 0;
+
+	this.dithering = false;
+
+	this.alphaTest = 0;
+	this.premultipliedAlpha = false;
+
+	this.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer
+
+	this.visible = true;
+
+	this.userData = {};
+
+	this.needsUpdate = true;
+
+}
+
+Object.assign( Material.prototype, EventDispatcher.prototype, {
+
+	isMaterial: true,
+
+	onBeforeCompile: function () {},
+
+	setValues: function ( values ) {
+
+		if ( values === undefined ) return;
+
+		for ( var key in values ) {
+
+			var newValue = values[ key ];
+
+			if ( newValue === undefined ) {
+
+				console.warn( "THREE.Material: '" + key + "' parameter is undefined." );
+				continue;
+
+			}
+
+			// for backward compatability if shading is set in the constructor
+			if ( key === 'shading' ) {
+
+				console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
+				this.flatShading = ( newValue === FlatShading ) ? true : false;
+				continue;
+
+			}
+
+			var currentValue = this[ key ];
+
+			if ( currentValue === undefined ) {
+
+				console.warn( "THREE." + this.type + ": '" + key + "' is not a property of this material." );
+				continue;
+
+			}
+
+			if ( currentValue && currentValue.isColor ) {
+
+				currentValue.set( newValue );
+
+			} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {
+
+				currentValue.copy( newValue );
+
+			} else if ( key === 'overdraw' ) {
+
+				// ensure overdraw is backwards-compatible with legacy boolean type
+				this[ key ] = Number( newValue );
+
+			} else {
+
+				this[ key ] = newValue;
+
+			}
+
+		}
+
+	},
+
+	toJSON: function ( meta ) {
+
+		var isRoot = ( meta === undefined || typeof meta === 'string' );
+
+		if ( isRoot ) {
+
+			meta = {
+				textures: {},
+				images: {}
+			};
+
+		}
+
+		var data = {
+			metadata: {
+				version: 4.5,
+				type: 'Material',
+				generator: 'Material.toJSON'
+			}
+		};
+
+		// standard Material serialization
+		data.uuid = this.uuid;
+		data.type = this.type;
+
+		if ( this.name !== '' ) data.name = this.name;
+
+		if ( this.color && this.color.isColor ) data.color = this.color.getHex();
+
+		if ( this.roughness !== undefined ) data.roughness = this.roughness;
+		if ( this.metalness !== undefined ) data.metalness = this.metalness;
+
+		if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
+		if ( this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;
+
+		if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
+		if ( this.shininess !== undefined ) data.shininess = this.shininess;
+		if ( this.clearCoat !== undefined ) data.clearCoat = this.clearCoat;
+		if ( this.clearCoatRoughness !== undefined ) data.clearCoatRoughness = this.clearCoatRoughness;
+
+		if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;
+		if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;
+		if ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;
+		if ( this.bumpMap && this.bumpMap.isTexture ) {
+
+			data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
+			data.bumpScale = this.bumpScale;
+
+		}
+		if ( this.normalMap && this.normalMap.isTexture ) {
+
+			data.normalMap = this.normalMap.toJSON( meta ).uuid;
+			data.normalScale = this.normalScale.toArray();
+
+		}
+		if ( this.displacementMap && this.displacementMap.isTexture ) {
+
+			data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
+			data.displacementScale = this.displacementScale;
+			data.displacementBias = this.displacementBias;
+
+		}
+		if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
+		if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;
+
+		if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
+		if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;
+
+		if ( this.envMap && this.envMap.isTexture ) {
+
+			data.envMap = this.envMap.toJSON( meta ).uuid;
+			data.reflectivity = this.reflectivity; // Scale behind envMap
+
+		}
+
+		if ( this.gradientMap && this.gradientMap.isTexture ) {
+
+			data.gradientMap = this.gradientMap.toJSON( meta ).uuid;
+
+		}
+
+		if ( this.size !== undefined ) data.size = this.size;
+		if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;
+
+		if ( this.blending !== NormalBlending ) data.blending = this.blending;
+		if ( this.flatShading === true ) data.flatShading = this.flatShading;
+		if ( this.side !== FrontSide ) data.side = this.side;
+		if ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;
+
+		if ( this.opacity < 1 ) data.opacity = this.opacity;
+		if ( this.transparent === true ) data.transparent = this.transparent;
+
+		data.depthFunc = this.depthFunc;
+		data.depthTest = this.depthTest;
+		data.depthWrite = this.depthWrite;
+
+		// rotation (SpriteMaterial)
+		if ( this.rotation !== 0 ) data.rotation = this.rotation;
+
+		if ( this.linewidth !== 1 ) data.linewidth = this.linewidth;
+		if ( this.dashSize !== undefined ) data.dashSize = this.dashSize;
+		if ( this.gapSize !== undefined ) data.gapSize = this.gapSize;
+		if ( this.scale !== undefined ) data.scale = this.scale;
+
+		if ( this.dithering === true ) data.dithering = true;
+
+		if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
+		if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;
+
+		if ( this.wireframe === true ) data.wireframe = this.wireframe;
+		if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;
+		if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;
+		if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;
+
+		if ( this.morphTargets === true ) data.morphTargets = true;
+		if ( this.skinning === true ) data.skinning = true;
+
+		if ( this.visible === false ) data.visible = false;
+		if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;
+
+		// TODO: Copied from Object3D.toJSON
+
+		function extractFromCache( cache ) {
+
+			var values = [];
+
+			for ( var key in cache ) {
+
+				var data = cache[ key ];
+				delete data.metadata;
+				values.push( data );
+
+			}
+
+			return values;
+
+		}
+
+		if ( isRoot ) {
+
+			var textures = extractFromCache( meta.textures );
+			var images = extractFromCache( meta.images );
+
+			if ( textures.length > 0 ) data.textures = textures;
+			if ( images.length > 0 ) data.images = images;
+
+		}
+
+		return data;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( source ) {
+
+		this.name = source.name;
+
+		this.fog = source.fog;
+		this.lights = source.lights;
+
+		this.blending = source.blending;
+		this.side = source.side;
+		this.flatShading = source.flatShading;
+		this.vertexColors = source.vertexColors;
+
+		this.opacity = source.opacity;
+		this.transparent = source.transparent;
+
+		this.blendSrc = source.blendSrc;
+		this.blendDst = source.blendDst;
+		this.blendEquation = source.blendEquation;
+		this.blendSrcAlpha = source.blendSrcAlpha;
+		this.blendDstAlpha = source.blendDstAlpha;
+		this.blendEquationAlpha = source.blendEquationAlpha;
+
+		this.depthFunc = source.depthFunc;
+		this.depthTest = source.depthTest;
+		this.depthWrite = source.depthWrite;
+
+		this.colorWrite = source.colorWrite;
+
+		this.precision = source.precision;
+
+		this.polygonOffset = source.polygonOffset;
+		this.polygonOffsetFactor = source.polygonOffsetFactor;
+		this.polygonOffsetUnits = source.polygonOffsetUnits;
+
+		this.dithering = source.dithering;
+
+		this.alphaTest = source.alphaTest;
+		this.premultipliedAlpha = source.premultipliedAlpha;
+
+		this.overdraw = source.overdraw;
+
+		this.visible = source.visible;
+		this.userData = JSON.parse( JSON.stringify( source.userData ) );
+
+		this.clipShadows = source.clipShadows;
+		this.clipIntersection = source.clipIntersection;
+
+		var srcPlanes = source.clippingPlanes,
+			dstPlanes = null;
+
+		if ( srcPlanes !== null ) {
+
+			var n = srcPlanes.length;
+			dstPlanes = new Array( n );
+
+			for ( var i = 0; i !== n; ++ i )
+				dstPlanes[ i ] = srcPlanes[ i ].clone();
+
+		}
+
+		this.clippingPlanes = dstPlanes;
+
+		return this;
+
+	},
+
+	dispose: function () {
+
+		this.dispatchEvent( { type: 'dispose' } );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ * @author bhouston / https://clara.io
+ * @author WestLangley / http://github.com/WestLangley
+ *
+ * parameters = {
+ *
+ *  opacity: <float>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>
+ * }
+ */
+
+function MeshDepthMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'MeshDepthMaterial';
+
+	this.depthPacking = BasicDepthPacking;
+
+	this.skinning = false;
+	this.morphTargets = false;
+
+	this.map = null;
+
+	this.alphaMap = null;
+
+	this.displacementMap = null;
+	this.displacementScale = 1;
+	this.displacementBias = 0;
+
+	this.wireframe = false;
+	this.wireframeLinewidth = 1;
+
+	this.fog = false;
+	this.lights = false;
+
+	this.setValues( parameters );
+
+}
+
+MeshDepthMaterial.prototype = Object.create( Material.prototype );
+MeshDepthMaterial.prototype.constructor = MeshDepthMaterial;
+
+MeshDepthMaterial.prototype.isMeshDepthMaterial = true;
+
+MeshDepthMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.depthPacking = source.depthPacking;
+
+	this.skinning = source.skinning;
+	this.morphTargets = source.morphTargets;
+
+	this.map = source.map;
+
+	this.alphaMap = source.alphaMap;
+
+	this.displacementMap = source.displacementMap;
+	this.displacementScale = source.displacementScale;
+	this.displacementBias = source.displacementBias;
+
+	this.wireframe = source.wireframe;
+	this.wireframeLinewidth = source.wireframeLinewidth;
+
+	return this;
+
+};
+
+/**
+ * @author WestLangley / http://github.com/WestLangley
+ *
+ * parameters = {
+ *
+ *  referencePosition: <float>,
+ *  nearDistance: <float>,
+ *  farDistance: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>
+ *
+ * }
+ */
+
+function MeshDistanceMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'MeshDistanceMaterial';
+
+	this.referencePosition = new Vector3();
+	this.nearDistance = 1;
+	this.farDistance = 1000;
+
+	this.skinning = false;
+	this.morphTargets = false;
+
+	this.map = null;
+
+	this.alphaMap = null;
+
+	this.displacementMap = null;
+	this.displacementScale = 1;
+	this.displacementBias = 0;
+
+	this.fog = false;
+	this.lights = false;
+
+	this.setValues( parameters );
+
+}
+
+MeshDistanceMaterial.prototype = Object.create( Material.prototype );
+MeshDistanceMaterial.prototype.constructor = MeshDistanceMaterial;
+
+MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;
+
+MeshDistanceMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.referencePosition.copy( source.referencePosition );
+	this.nearDistance = source.nearDistance;
+	this.farDistance = source.farDistance;
+
+	this.skinning = source.skinning;
+	this.morphTargets = source.morphTargets;
+
+	this.map = source.map;
+
+	this.alphaMap = source.alphaMap;
+
+	this.displacementMap = source.displacementMap;
+	this.displacementScale = source.displacementScale;
+	this.displacementBias = source.displacementBias;
+
+	return this;
+
+};
+
+/**
+ * @author bhouston / http://clara.io
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function Box3( min, max ) {
+
+	this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );
+	this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );
+
+}
+
+Object.assign( Box3.prototype, {
+
+	isBox3: true,
+
+	set: function ( min, max ) {
+
+		this.min.copy( min );
+		this.max.copy( max );
+
+		return this;
+
+	},
+
+	setFromArray: function ( array ) {
+
+		var minX = + Infinity;
+		var minY = + Infinity;
+		var minZ = + Infinity;
+
+		var maxX = - Infinity;
+		var maxY = - Infinity;
+		var maxZ = - Infinity;
+
+		for ( var i = 0, l = array.length; i < l; i += 3 ) {
+
+			var x = array[ i ];
+			var y = array[ i + 1 ];
+			var z = array[ i + 2 ];
+
+			if ( x < minX ) minX = x;
+			if ( y < minY ) minY = y;
+			if ( z < minZ ) minZ = z;
+
+			if ( x > maxX ) maxX = x;
+			if ( y > maxY ) maxY = y;
+			if ( z > maxZ ) maxZ = z;
+
+		}
+
+		this.min.set( minX, minY, minZ );
+		this.max.set( maxX, maxY, maxZ );
+
+		return this;
+
+	},
+
+	setFromBufferAttribute: function ( attribute ) {
+
+		var minX = + Infinity;
+		var minY = + Infinity;
+		var minZ = + Infinity;
+
+		var maxX = - Infinity;
+		var maxY = - Infinity;
+		var maxZ = - Infinity;
+
+		for ( var i = 0, l = attribute.count; i < l; i ++ ) {
+
+			var x = attribute.getX( i );
+			var y = attribute.getY( i );
+			var z = attribute.getZ( i );
+
+			if ( x < minX ) minX = x;
+			if ( y < minY ) minY = y;
+			if ( z < minZ ) minZ = z;
+
+			if ( x > maxX ) maxX = x;
+			if ( y > maxY ) maxY = y;
+			if ( z > maxZ ) maxZ = z;
+
+		}
+
+		this.min.set( minX, minY, minZ );
+		this.max.set( maxX, maxY, maxZ );
+
+		return this;
+
+	},
+
+	setFromPoints: function ( points ) {
+
+		this.makeEmpty();
+
+		for ( var i = 0, il = points.length; i < il; i ++ ) {
+
+			this.expandByPoint( points[ i ] );
+
+		}
+
+		return this;
+
+	},
+
+	setFromCenterAndSize: function () {
+
+		var v1 = new Vector3();
+
+		return function setFromCenterAndSize( center, size ) {
+
+			var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
+
+			this.min.copy( center ).sub( halfSize );
+			this.max.copy( center ).add( halfSize );
+
+			return this;
+
+		};
+
+	}(),
+
+	setFromObject: function ( object ) {
+
+		this.makeEmpty();
+
+		return this.expandByObject( object );
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( box ) {
+
+		this.min.copy( box.min );
+		this.max.copy( box.max );
+
+		return this;
+
+	},
+
+	makeEmpty: function () {
+
+		this.min.x = this.min.y = this.min.z = + Infinity;
+		this.max.x = this.max.y = this.max.z = - Infinity;
+
+		return this;
+
+	},
+
+	isEmpty: function () {
+
+		// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
+
+		return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );
+
+	},
+
+	getCenter: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+		return this.isEmpty() ? result.set( 0, 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );
+
+	},
+
+	getSize: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+		return this.isEmpty() ? result.set( 0, 0, 0 ) : result.subVectors( this.max, this.min );
+
+	},
+
+	expandByPoint: function ( point ) {
+
+		this.min.min( point );
+		this.max.max( point );
+
+		return this;
+
+	},
+
+	expandByVector: function ( vector ) {
+
+		this.min.sub( vector );
+		this.max.add( vector );
+
+		return this;
+
+	},
+
+	expandByScalar: function ( scalar ) {
+
+		this.min.addScalar( - scalar );
+		this.max.addScalar( scalar );
+
+		return this;
+
+	},
+
+	expandByObject: function () {
+
+		// Computes the world-axis-aligned bounding box of an object (including its children),
+		// accounting for both the object's, and children's, world transforms
+
+		var scope, i, l;
+
+		var v1 = new Vector3();
+
+		function traverse( node ) {
+
+			var geometry = node.geometry;
+
+			if ( geometry !== undefined ) {
+
+				if ( geometry.isGeometry ) {
+
+					var vertices = geometry.vertices;
+
+					for ( i = 0, l = vertices.length; i < l; i ++ ) {
+
+						v1.copy( vertices[ i ] );
+						v1.applyMatrix4( node.matrixWorld );
+
+						scope.expandByPoint( v1 );
+
+					}
+
+				} else if ( geometry.isBufferGeometry ) {
+
+					var attribute = geometry.attributes.position;
+
+					if ( attribute !== undefined ) {
+
+						for ( i = 0, l = attribute.count; i < l; i ++ ) {
+
+							v1.fromBufferAttribute( attribute, i ).applyMatrix4( node.matrixWorld );
+
+							scope.expandByPoint( v1 );
+
+						}
+
+					}
+
+				}
+
+			}
+
+		}
+
+		return function expandByObject( object ) {
+
+			scope = this;
+
+			object.updateMatrixWorld( true );
+
+			object.traverse( traverse );
+
+			return this;
+
+		};
+
+	}(),
+
+	containsPoint: function ( point ) {
+
+		return point.x < this.min.x || point.x > this.max.x ||
+			point.y < this.min.y || point.y > this.max.y ||
+			point.z < this.min.z || point.z > this.max.z ? false : true;
+
+	},
+
+	containsBox: function ( box ) {
+
+		return this.min.x <= box.min.x && box.max.x <= this.max.x &&
+			this.min.y <= box.min.y && box.max.y <= this.max.y &&
+			this.min.z <= box.min.z && box.max.z <= this.max.z;
+
+	},
+
+	getParameter: function ( point, optionalTarget ) {
+
+		// This can potentially have a divide by zero if the box
+		// has a size dimension of 0.
+
+		var result = optionalTarget || new Vector3();
+
+		return result.set(
+			( point.x - this.min.x ) / ( this.max.x - this.min.x ),
+			( point.y - this.min.y ) / ( this.max.y - this.min.y ),
+			( point.z - this.min.z ) / ( this.max.z - this.min.z )
+		);
+
+	},
+
+	intersectsBox: function ( box ) {
+
+		// using 6 splitting planes to rule out intersections.
+		return box.max.x < this.min.x || box.min.x > this.max.x ||
+			box.max.y < this.min.y || box.min.y > this.max.y ||
+			box.max.z < this.min.z || box.min.z > this.max.z ? false : true;
+
+	},
+
+	intersectsSphere: ( function () {
+
+		var closestPoint = new Vector3();
+
+		return function intersectsSphere( sphere ) {
+
+			// Find the point on the AABB closest to the sphere center.
+			this.clampPoint( sphere.center, closestPoint );
+
+			// If that point is inside the sphere, the AABB and sphere intersect.
+			return closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );
+
+		};
+
+	} )(),
+
+	intersectsPlane: function ( plane ) {
+
+		// We compute the minimum and maximum dot product values. If those values
+		// are on the same side (back or front) of the plane, then there is no intersection.
+
+		var min, max;
+
+		if ( plane.normal.x > 0 ) {
+
+			min = plane.normal.x * this.min.x;
+			max = plane.normal.x * this.max.x;
+
+		} else {
+
+			min = plane.normal.x * this.max.x;
+			max = plane.normal.x * this.min.x;
+
+		}
+
+		if ( plane.normal.y > 0 ) {
+
+			min += plane.normal.y * this.min.y;
+			max += plane.normal.y * this.max.y;
+
+		} else {
+
+			min += plane.normal.y * this.max.y;
+			max += plane.normal.y * this.min.y;
+
+		}
+
+		if ( plane.normal.z > 0 ) {
+
+			min += plane.normal.z * this.min.z;
+			max += plane.normal.z * this.max.z;
+
+		} else {
+
+			min += plane.normal.z * this.max.z;
+			max += plane.normal.z * this.min.z;
+
+		}
+
+		return ( min <= plane.constant && max >= plane.constant );
+
+	},
+
+	clampPoint: function ( point, optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+		return result.copy( point ).clamp( this.min, this.max );
+
+	},
+
+	distanceToPoint: function () {
+
+		var v1 = new Vector3();
+
+		return function distanceToPoint( point ) {
+
+			var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
+			return clampedPoint.sub( point ).length();
+
+		};
+
+	}(),
+
+	getBoundingSphere: function () {
+
+		var v1 = new Vector3();
+
+		return function getBoundingSphere( optionalTarget ) {
+
+			var result = optionalTarget || new Sphere();
+
+			this.getCenter( result.center );
+
+			result.radius = this.getSize( v1 ).length() * 0.5;
+
+			return result;
+
+		};
+
+	}(),
+
+	intersect: function ( box ) {
+
+		this.min.max( box.min );
+		this.max.min( box.max );
+
+		// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
+		if ( this.isEmpty() ) this.makeEmpty();
+
+		return this;
+
+	},
+
+	union: function ( box ) {
+
+		this.min.min( box.min );
+		this.max.max( box.max );
+
+		return this;
+
+	},
+
+	applyMatrix4: function () {
+
+		var points = [
+			new Vector3(),
+			new Vector3(),
+			new Vector3(),
+			new Vector3(),
+			new Vector3(),
+			new Vector3(),
+			new Vector3(),
+			new Vector3()
+		];
+
+		return function applyMatrix4( matrix ) {
+
+			// transform of empty box is an empty box.
+			if ( this.isEmpty() ) return this;
+
+			// NOTE: I am using a binary pattern to specify all 2^3 combinations below
+			points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
+			points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
+			points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
+			points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
+			points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
+			points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
+			points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
+			points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix );	// 111
+
+			this.setFromPoints( points );
+
+			return this;
+
+		};
+
+	}(),
+
+	translate: function ( offset ) {
+
+		this.min.add( offset );
+		this.max.add( offset );
+
+		return this;
+
+	},
+
+	equals: function ( box ) {
+
+		return box.min.equals( this.min ) && box.max.equals( this.max );
+
+	}
+
+} );
+
+/**
+ * @author bhouston / http://clara.io
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Sphere( center, radius ) {
+
+	this.center = ( center !== undefined ) ? center : new Vector3();
+	this.radius = ( radius !== undefined ) ? radius : 0;
+
+}
+
+Object.assign( Sphere.prototype, {
+
+	set: function ( center, radius ) {
+
+		this.center.copy( center );
+		this.radius = radius;
+
+		return this;
+
+	},
+
+	setFromPoints: function () {
+
+		var box = new Box3();
+
+		return function setFromPoints( points, optionalCenter ) {
+
+			var center = this.center;
+
+			if ( optionalCenter !== undefined ) {
+
+				center.copy( optionalCenter );
+
+			} else {
+
+				box.setFromPoints( points ).getCenter( center );
+
+			}
+
+			var maxRadiusSq = 0;
+
+			for ( var i = 0, il = points.length; i < il; i ++ ) {
+
+				maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );
+
+			}
+
+			this.radius = Math.sqrt( maxRadiusSq );
+
+			return this;
+
+		};
+
+	}(),
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( sphere ) {
+
+		this.center.copy( sphere.center );
+		this.radius = sphere.radius;
+
+		return this;
+
+	},
+
+	empty: function () {
+
+		return ( this.radius <= 0 );
+
+	},
+
+	containsPoint: function ( point ) {
+
+		return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );
+
+	},
+
+	distanceToPoint: function ( point ) {
+
+		return ( point.distanceTo( this.center ) - this.radius );
+
+	},
+
+	intersectsSphere: function ( sphere ) {
+
+		var radiusSum = this.radius + sphere.radius;
+
+		return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );
+
+	},
+
+	intersectsBox: function ( box ) {
+
+		return box.intersectsSphere( this );
+
+	},
+
+	intersectsPlane: function ( plane ) {
+
+		return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;
+
+	},
+
+	clampPoint: function ( point, optionalTarget ) {
+
+		var deltaLengthSq = this.center.distanceToSquared( point );
+
+		var result = optionalTarget || new Vector3();
+
+		result.copy( point );
+
+		if ( deltaLengthSq > ( this.radius * this.radius ) ) {
+
+			result.sub( this.center ).normalize();
+			result.multiplyScalar( this.radius ).add( this.center );
+
+		}
+
+		return result;
+
+	},
+
+	getBoundingBox: function ( optionalTarget ) {
+
+		var box = optionalTarget || new Box3();
+
+		box.set( this.center, this.center );
+		box.expandByScalar( this.radius );
+
+		return box;
+
+	},
+
+	applyMatrix4: function ( matrix ) {
+
+		this.center.applyMatrix4( matrix );
+		this.radius = this.radius * matrix.getMaxScaleOnAxis();
+
+		return this;
+
+	},
+
+	translate: function ( offset ) {
+
+		this.center.add( offset );
+
+		return this;
+
+	},
+
+	equals: function ( sphere ) {
+
+		return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );
+
+	}
+
+} );
+
+/**
+ * @author bhouston / http://clara.io
+ */
+
+function Plane( normal, constant ) {
+
+	// normal is assumed to be normalized
+
+	this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );
+	this.constant = ( constant !== undefined ) ? constant : 0;
+
+}
+
+Object.assign( Plane.prototype, {
+
+	set: function ( normal, constant ) {
+
+		this.normal.copy( normal );
+		this.constant = constant;
+
+		return this;
+
+	},
+
+	setComponents: function ( x, y, z, w ) {
+
+		this.normal.set( x, y, z );
+		this.constant = w;
+
+		return this;
+
+	},
+
+	setFromNormalAndCoplanarPoint: function ( normal, point ) {
+
+		this.normal.copy( normal );
+		this.constant = - point.dot( this.normal );
+
+		return this;
+
+	},
+
+	setFromCoplanarPoints: function () {
+
+		var v1 = new Vector3();
+		var v2 = new Vector3();
+
+		return function setFromCoplanarPoints( a, b, c ) {
+
+			var normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();
+
+			// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?
+
+			this.setFromNormalAndCoplanarPoint( normal, a );
+
+			return this;
+
+		};
+
+	}(),
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( plane ) {
+
+		this.normal.copy( plane.normal );
+		this.constant = plane.constant;
+
+		return this;
+
+	},
+
+	normalize: function () {
+
+		// Note: will lead to a divide by zero if the plane is invalid.
+
+		var inverseNormalLength = 1.0 / this.normal.length();
+		this.normal.multiplyScalar( inverseNormalLength );
+		this.constant *= inverseNormalLength;
+
+		return this;
+
+	},
+
+	negate: function () {
+
+		this.constant *= - 1;
+		this.normal.negate();
+
+		return this;
+
+	},
+
+	distanceToPoint: function ( point ) {
+
+		return this.normal.dot( point ) + this.constant;
+
+	},
+
+	distanceToSphere: function ( sphere ) {
+
+		return this.distanceToPoint( sphere.center ) - sphere.radius;
+
+	},
+
+	projectPoint: function ( point, optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+
+		return result.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );
+
+	},
+
+	intersectLine: function () {
+
+		var v1 = new Vector3();
+
+		return function intersectLine( line, optionalTarget ) {
+
+			var result = optionalTarget || new Vector3();
+
+			var direction = line.delta( v1 );
+
+			var denominator = this.normal.dot( direction );
+
+			if ( denominator === 0 ) {
+
+				// line is coplanar, return origin
+				if ( this.distanceToPoint( line.start ) === 0 ) {
+
+					return result.copy( line.start );
+
+				}
+
+				// Unsure if this is the correct method to handle this case.
+				return undefined;
+
+			}
+
+			var t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;
+
+			if ( t < 0 || t > 1 ) {
+
+				return undefined;
+
+			}
+
+			return result.copy( direction ).multiplyScalar( t ).add( line.start );
+
+		};
+
+	}(),
+
+	intersectsLine: function ( line ) {
+
+		// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.
+
+		var startSign = this.distanceToPoint( line.start );
+		var endSign = this.distanceToPoint( line.end );
+
+		return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );
+
+	},
+
+	intersectsBox: function ( box ) {
+
+		return box.intersectsPlane( this );
+
+	},
+
+	intersectsSphere: function ( sphere ) {
+
+		return sphere.intersectsPlane( this );
+
+	},
+
+	coplanarPoint: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+
+		return result.copy( this.normal ).multiplyScalar( - this.constant );
+
+	},
+
+	applyMatrix4: function () {
+
+		var v1 = new Vector3();
+		var m1 = new Matrix3();
+
+		return function applyMatrix4( matrix, optionalNormalMatrix ) {
+
+			var normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );
+
+			var referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );
+
+			var normal = this.normal.applyMatrix3( normalMatrix ).normalize();
+
+			this.constant = - referencePoint.dot( normal );
+
+			return this;
+
+		};
+
+	}(),
+
+	translate: function ( offset ) {
+
+		this.constant -= offset.dot( this.normal );
+
+		return this;
+
+	},
+
+	equals: function ( plane ) {
+
+		return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ * @author bhouston / http://clara.io
+ */
+
+function Frustum( p0, p1, p2, p3, p4, p5 ) {
+
+	this.planes = [
+
+		( p0 !== undefined ) ? p0 : new Plane(),
+		( p1 !== undefined ) ? p1 : new Plane(),
+		( p2 !== undefined ) ? p2 : new Plane(),
+		( p3 !== undefined ) ? p3 : new Plane(),
+		( p4 !== undefined ) ? p4 : new Plane(),
+		( p5 !== undefined ) ? p5 : new Plane()
+
+	];
+
+}
+
+Object.assign( Frustum.prototype, {
+
+	set: function ( p0, p1, p2, p3, p4, p5 ) {
+
+		var planes = this.planes;
+
+		planes[ 0 ].copy( p0 );
+		planes[ 1 ].copy( p1 );
+		planes[ 2 ].copy( p2 );
+		planes[ 3 ].copy( p3 );
+		planes[ 4 ].copy( p4 );
+		planes[ 5 ].copy( p5 );
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( frustum ) {
+
+		var planes = this.planes;
+
+		for ( var i = 0; i < 6; i ++ ) {
+
+			planes[ i ].copy( frustum.planes[ i ] );
+
+		}
+
+		return this;
+
+	},
+
+	setFromMatrix: function ( m ) {
+
+		var planes = this.planes;
+		var me = m.elements;
+		var me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
+		var me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
+		var me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
+		var me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];
+
+		planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
+		planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
+		planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
+		planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
+		planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
+		planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();
+
+		return this;
+
+	},
+
+	intersectsObject: function () {
+
+		var sphere = new Sphere();
+
+		return function intersectsObject( object ) {
+
+			var geometry = object.geometry;
+
+			if ( geometry.boundingSphere === null )
+				geometry.computeBoundingSphere();
+
+			sphere.copy( geometry.boundingSphere )
+				.applyMatrix4( object.matrixWorld );
+
+			return this.intersectsSphere( sphere );
+
+		};
+
+	}(),
+
+	intersectsSprite: function () {
+
+		var sphere = new Sphere();
+
+		return function intersectsSprite( sprite ) {
+
+			sphere.center.set( 0, 0, 0 );
+			sphere.radius = 0.7071067811865476;
+			sphere.applyMatrix4( sprite.matrixWorld );
+
+			return this.intersectsSphere( sphere );
+
+		};
+
+	}(),
+
+	intersectsSphere: function ( sphere ) {
+
+		var planes = this.planes;
+		var center = sphere.center;
+		var negRadius = - sphere.radius;
+
+		for ( var i = 0; i < 6; i ++ ) {
+
+			var distance = planes[ i ].distanceToPoint( center );
+
+			if ( distance < negRadius ) {
+
+				return false;
+
+			}
+
+		}
+
+		return true;
+
+	},
+
+	intersectsBox: function () {
+
+		var p1 = new Vector3(),
+			p2 = new Vector3();
+
+		return function intersectsBox( box ) {
+
+			var planes = this.planes;
+
+			for ( var i = 0; i < 6; i ++ ) {
+
+				var plane = planes[ i ];
+
+				p1.x = plane.normal.x > 0 ? box.min.x : box.max.x;
+				p2.x = plane.normal.x > 0 ? box.max.x : box.min.x;
+				p1.y = plane.normal.y > 0 ? box.min.y : box.max.y;
+				p2.y = plane.normal.y > 0 ? box.max.y : box.min.y;
+				p1.z = plane.normal.z > 0 ? box.min.z : box.max.z;
+				p2.z = plane.normal.z > 0 ? box.max.z : box.min.z;
+
+				var d1 = plane.distanceToPoint( p1 );
+				var d2 = plane.distanceToPoint( p2 );
+
+				// if both outside plane, no intersection
+
+				if ( d1 < 0 && d2 < 0 ) {
+
+					return false;
+
+				}
+
+			}
+
+			return true;
+
+		};
+
+	}(),
+
+	containsPoint: function ( point ) {
+
+		var planes = this.planes;
+
+		for ( var i = 0; i < 6; i ++ ) {
+
+			if ( planes[ i ].distanceToPoint( point ) < 0 ) {
+
+				return false;
+
+			}
+
+		}
+
+		return true;
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLShadowMap( _renderer, _objects, maxTextureSize ) {
+
+	var _frustum = new Frustum(),
+		_projScreenMatrix = new Matrix4(),
+
+		_shadowMapSize = new Vector2(),
+		_maxShadowMapSize = new Vector2( maxTextureSize, maxTextureSize ),
+
+		_lookTarget = new Vector3(),
+		_lightPositionWorld = new Vector3(),
+
+		_MorphingFlag = 1,
+		_SkinningFlag = 2,
+
+		_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,
+
+		_depthMaterials = new Array( _NumberOfMaterialVariants ),
+		_distanceMaterials = new Array( _NumberOfMaterialVariants ),
+
+		_materialCache = {};
+
+	var cubeDirections = [
+		new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),
+		new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )
+	];
+
+	var cubeUps = [
+		new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),
+		new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),	new Vector3( 0, 0, - 1 )
+	];
+
+	var cube2DViewPorts = [
+		new Vector4(), new Vector4(), new Vector4(),
+		new Vector4(), new Vector4(), new Vector4()
+	];
+
+	// init
+
+	for ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {
+
+		var useMorphing = ( i & _MorphingFlag ) !== 0;
+		var useSkinning = ( i & _SkinningFlag ) !== 0;
+
+		var depthMaterial = new MeshDepthMaterial( {
+
+			depthPacking: RGBADepthPacking,
+
+			morphTargets: useMorphing,
+			skinning: useSkinning
+
+		} );
+
+		_depthMaterials[ i ] = depthMaterial;
+
+		//
+
+		var distanceMaterial = new MeshDistanceMaterial( {
+
+			morphTargets: useMorphing,
+			skinning: useSkinning
+
+		} );
+
+		_distanceMaterials[ i ] = distanceMaterial;
+
+	}
+
+	//
+
+	var scope = this;
+
+	this.enabled = false;
+
+	this.autoUpdate = true;
+	this.needsUpdate = false;
+
+	this.type = PCFShadowMap;
+
+	this.renderReverseSided = true;
+	this.renderSingleSided = true;
+
+	this.render = function ( lights, scene, camera ) {
+
+		if ( scope.enabled === false ) return;
+		if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;
+
+		if ( lights.length === 0 ) return;
+
+		// TODO Clean up (needed in case of contextlost)
+		var _gl = _renderer.context;
+		var _state = _renderer.state;
+
+		// Set GL state for depth map.
+		_state.disable( _gl.BLEND );
+		_state.buffers.color.setClear( 1, 1, 1, 1 );
+		_state.buffers.depth.setTest( true );
+		_state.setScissorTest( false );
+
+		// render depth map
+
+		var faceCount;
+
+		for ( var i = 0, il = lights.length; i < il; i ++ ) {
+
+			var light = lights[ i ];
+			var shadow = light.shadow;
+			var isPointLight = light && light.isPointLight;
+
+			if ( shadow === undefined ) {
+
+				console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );
+				continue;
+
+			}
+
+			var shadowCamera = shadow.camera;
+
+			_shadowMapSize.copy( shadow.mapSize );
+			_shadowMapSize.min( _maxShadowMapSize );
+
+			if ( isPointLight ) {
+
+				var vpWidth = _shadowMapSize.x;
+				var vpHeight = _shadowMapSize.y;
+
+				// These viewports map a cube-map onto a 2D texture with the
+				// following orientation:
+				//
+				//  xzXZ
+				//   y Y
+				//
+				// X - Positive x direction
+				// x - Negative x direction
+				// Y - Positive y direction
+				// y - Negative y direction
+				// Z - Positive z direction
+				// z - Negative z direction
+
+				// positive X
+				cube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );
+				// negative X
+				cube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );
+				// positive Z
+				cube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );
+				// negative Z
+				cube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );
+				// positive Y
+				cube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );
+				// negative Y
+				cube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );
+
+				_shadowMapSize.x *= 4.0;
+				_shadowMapSize.y *= 2.0;
+
+			}
+
+			if ( shadow.map === null ) {
+
+				var pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };
+
+				shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
+				shadow.map.texture.name = light.name + ".shadowMap";
+
+				shadowCamera.updateProjectionMatrix();
+
+			}
+
+			if ( shadow.isSpotLightShadow ) {
+
+				shadow.update( light );
+
+			}
+
+			var shadowMap = shadow.map;
+			var shadowMatrix = shadow.matrix;
+
+			_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
+			shadowCamera.position.copy( _lightPositionWorld );
+
+			if ( isPointLight ) {
+
+				faceCount = 6;
+
+				// for point lights we set the shadow matrix to be a translation-only matrix
+				// equal to inverse of the light's position
+
+				shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );
+
+			} else {
+
+				faceCount = 1;
+
+				_lookTarget.setFromMatrixPosition( light.target.matrixWorld );
+				shadowCamera.lookAt( _lookTarget );
+				shadowCamera.updateMatrixWorld();
+
+				// compute shadow matrix
+
+				shadowMatrix.set(
+					0.5, 0.0, 0.0, 0.5,
+					0.0, 0.5, 0.0, 0.5,
+					0.0, 0.0, 0.5, 0.5,
+					0.0, 0.0, 0.0, 1.0
+				);
+
+				shadowMatrix.multiply( shadowCamera.projectionMatrix );
+				shadowMatrix.multiply( shadowCamera.matrixWorldInverse );
+
+			}
+
+			_renderer.setRenderTarget( shadowMap );
+			_renderer.clear();
+
+			// render shadow map for each cube face (if omni-directional) or
+			// run a single pass if not
+
+			for ( var face = 0; face < faceCount; face ++ ) {
+
+				if ( isPointLight ) {
+
+					_lookTarget.copy( shadowCamera.position );
+					_lookTarget.add( cubeDirections[ face ] );
+					shadowCamera.up.copy( cubeUps[ face ] );
+					shadowCamera.lookAt( _lookTarget );
+					shadowCamera.updateMatrixWorld();
+
+					var vpDimensions = cube2DViewPorts[ face ];
+					_state.viewport( vpDimensions );
+
+				}
+
+				// update camera matrices and frustum
+
+				_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
+				_frustum.setFromMatrix( _projScreenMatrix );
+
+				// set object matrices & frustum culling
+
+				renderObject( scene, camera, shadowCamera, isPointLight );
+
+			}
+
+		}
+
+		scope.needsUpdate = false;
+
+	};
+
+	function getDepthMaterial( object, material, isPointLight, lightPositionWorld, shadowCameraNear, shadowCameraFar ) {
+
+		var geometry = object.geometry;
+
+		var result = null;
+
+		var materialVariants = _depthMaterials;
+		var customMaterial = object.customDepthMaterial;
+
+		if ( isPointLight ) {
+
+			materialVariants = _distanceMaterials;
+			customMaterial = object.customDistanceMaterial;
+
+		}
+
+		if ( ! customMaterial ) {
+
+			var useMorphing = false;
+
+			if ( material.morphTargets ) {
+
+				if ( geometry && geometry.isBufferGeometry ) {
+
+					useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;
+
+				} else if ( geometry && geometry.isGeometry ) {
+
+					useMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;
+
+				}
+
+			}
+
+			if ( object.isSkinnedMesh && material.skinning === false ) {
+
+				console.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object );
+
+			}
+
+			var useSkinning = object.isSkinnedMesh && material.skinning;
+
+			var variantIndex = 0;
+
+			if ( useMorphing ) variantIndex |= _MorphingFlag;
+			if ( useSkinning ) variantIndex |= _SkinningFlag;
+
+			result = materialVariants[ variantIndex ];
+
+		} else {
+
+			result = customMaterial;
+
+		}
+
+		if ( _renderer.localClippingEnabled &&
+				material.clipShadows === true &&
+				material.clippingPlanes.length !== 0 ) {
+
+			// in this case we need a unique material instance reflecting the
+			// appropriate state
+
+			var keyA = result.uuid, keyB = material.uuid;
+
+			var materialsForVariant = _materialCache[ keyA ];
+
+			if ( materialsForVariant === undefined ) {
+
+				materialsForVariant = {};
+				_materialCache[ keyA ] = materialsForVariant;
+
+			}
+
+			var cachedMaterial = materialsForVariant[ keyB ];
+
+			if ( cachedMaterial === undefined ) {
+
+				cachedMaterial = result.clone();
+				materialsForVariant[ keyB ] = cachedMaterial;
+
+			}
+
+			result = cachedMaterial;
+
+		}
+
+		result.visible = material.visible;
+		result.wireframe = material.wireframe;
+
+		var side = material.side;
+
+		if ( scope.renderSingleSided && side == DoubleSide ) {
+
+			side = FrontSide;
+
+		}
+
+		if ( scope.renderReverseSided ) {
+
+			if ( side === FrontSide ) side = BackSide;
+			else if ( side === BackSide ) side = FrontSide;
+
+		}
+
+		result.side = side;
+
+		result.clipShadows = material.clipShadows;
+		result.clippingPlanes = material.clippingPlanes;
+		result.clipIntersection = material.clipIntersection;
+
+		result.wireframeLinewidth = material.wireframeLinewidth;
+		result.linewidth = material.linewidth;
+
+		if ( isPointLight && result.isMeshDistanceMaterial ) {
+
+			result.referencePosition.copy( lightPositionWorld );
+			result.nearDistance = shadowCameraNear;
+			result.farDistance = shadowCameraFar;
+
+		}
+
+		return result;
+
+	}
+
+	function renderObject( object, camera, shadowCamera, isPointLight ) {
+
+		if ( object.visible === false ) return;
+
+		var visible = object.layers.test( camera.layers );
+
+		if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {
+
+			if ( object.castShadow && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {
+
+				object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );
+
+				var geometry = _objects.update( object );
+				var material = object.material;
+
+				if ( Array.isArray( material ) ) {
+
+					var groups = geometry.groups;
+
+					for ( var k = 0, kl = groups.length; k < kl; k ++ ) {
+
+						var group = groups[ k ];
+						var groupMaterial = material[ group.materialIndex ];
+
+						if ( groupMaterial && groupMaterial.visible ) {
+
+							var depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
+							_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );
+
+						}
+
+					}
+
+				} else if ( material.visible ) {
+
+					var depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
+					_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );
+
+				}
+
+			}
+
+		}
+
+		var children = object.children;
+
+		for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+			renderObject( children[ i ], camera, shadowCamera, isPointLight );
+
+		}
+
+	}
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLAttributes( gl ) {
+
+	var buffers = {};
+
+	function createBuffer( attribute, bufferType ) {
+
+		var array = attribute.array;
+		var usage = attribute.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW;
+
+		var buffer = gl.createBuffer();
+
+		gl.bindBuffer( bufferType, buffer );
+		gl.bufferData( bufferType, array, usage );
+
+		attribute.onUploadCallback();
+
+		var type = gl.FLOAT;
+
+		if ( array instanceof Float32Array ) {
+
+			type = gl.FLOAT;
+
+		} else if ( array instanceof Float64Array ) {
+
+			console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );
+
+		} else if ( array instanceof Uint16Array ) {
+
+			type = gl.UNSIGNED_SHORT;
+
+		} else if ( array instanceof Int16Array ) {
+
+			type = gl.SHORT;
+
+		} else if ( array instanceof Uint32Array ) {
+
+			type = gl.UNSIGNED_INT;
+
+		} else if ( array instanceof Int32Array ) {
+
+			type = gl.INT;
+
+		} else if ( array instanceof Int8Array ) {
+
+			type = gl.BYTE;
+
+		} else if ( array instanceof Uint8Array ) {
+
+			type = gl.UNSIGNED_BYTE;
+
+		}
+
+		return {
+			buffer: buffer,
+			type: type,
+			bytesPerElement: array.BYTES_PER_ELEMENT,
+			version: attribute.version
+		};
+
+	}
+
+	function updateBuffer( buffer, attribute, bufferType ) {
+
+		var array = attribute.array;
+		var updateRange = attribute.updateRange;
+
+		gl.bindBuffer( bufferType, buffer );
+
+		if ( attribute.dynamic === false ) {
+
+			gl.bufferData( bufferType, array, gl.STATIC_DRAW );
+
+		} else if ( updateRange.count === - 1 ) {
+
+			// Not using update ranges
+
+			gl.bufferSubData( bufferType, 0, array );
+
+		} else if ( updateRange.count === 0 ) {
+
+			console.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );
+
+		} else {
+
+			gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
+				array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );
+
+			updateRange.count = - 1; // reset range
+
+		}
+
+	}
+
+	//
+
+	function get( attribute ) {
+
+		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
+
+		return buffers[ attribute.uuid ];
+
+	}
+
+	function remove( attribute ) {
+
+		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
+
+		var data = buffers[ attribute.uuid ];
+
+		if ( data ) {
+
+			gl.deleteBuffer( data.buffer );
+
+			delete buffers[ attribute.uuid ];
+
+		}
+
+	}
+
+	function update( attribute, bufferType ) {
+
+		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
+
+		var data = buffers[ attribute.uuid ];
+
+		if ( data === undefined ) {
+
+			buffers[ attribute.uuid ] = createBuffer( attribute, bufferType );
+
+		} else if ( data.version < attribute.version ) {
+
+			updateBuffer( data.buffer, attribute, bufferType );
+
+			data.version = attribute.version;
+
+		}
+
+	}
+
+	return {
+
+		get: get,
+		remove: remove,
+		update: update
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author WestLangley / http://github.com/WestLangley
+ * @author bhouston / http://clara.io
+ */
+
+function Euler( x, y, z, order ) {
+
+	this._x = x || 0;
+	this._y = y || 0;
+	this._z = z || 0;
+	this._order = order || Euler.DefaultOrder;
+
+}
+
+Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];
+
+Euler.DefaultOrder = 'XYZ';
+
+Object.defineProperties( Euler.prototype, {
+
+	x: {
+
+		get: function () {
+
+			return this._x;
+
+		},
+
+		set: function ( value ) {
+
+			this._x = value;
+			this.onChangeCallback();
+
+		}
+
+	},
+
+	y: {
+
+		get: function () {
+
+			return this._y;
+
+		},
+
+		set: function ( value ) {
+
+			this._y = value;
+			this.onChangeCallback();
+
+		}
+
+	},
+
+	z: {
+
+		get: function () {
+
+			return this._z;
+
+		},
+
+		set: function ( value ) {
+
+			this._z = value;
+			this.onChangeCallback();
+
+		}
+
+	},
+
+	order: {
+
+		get: function () {
+
+			return this._order;
+
+		},
+
+		set: function ( value ) {
+
+			this._order = value;
+			this.onChangeCallback();
+
+		}
+
+	}
+
+} );
+
+Object.assign( Euler.prototype, {
+
+	isEuler: true,
+
+	set: function ( x, y, z, order ) {
+
+		this._x = x;
+		this._y = y;
+		this._z = z;
+		this._order = order || this._order;
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor( this._x, this._y, this._z, this._order );
+
+	},
+
+	copy: function ( euler ) {
+
+		this._x = euler._x;
+		this._y = euler._y;
+		this._z = euler._z;
+		this._order = euler._order;
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	setFromRotationMatrix: function ( m, order, update ) {
+
+		var clamp = _Math.clamp;
+
+		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+		var te = m.elements;
+		var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
+		var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
+		var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
+
+		order = order || this._order;
+
+		if ( order === 'XYZ' ) {
+
+			this._y = Math.asin( clamp( m13, - 1, 1 ) );
+
+			if ( Math.abs( m13 ) < 0.99999 ) {
+
+				this._x = Math.atan2( - m23, m33 );
+				this._z = Math.atan2( - m12, m11 );
+
+			} else {
+
+				this._x = Math.atan2( m32, m22 );
+				this._z = 0;
+
+			}
+
+		} else if ( order === 'YXZ' ) {
+
+			this._x = Math.asin( - clamp( m23, - 1, 1 ) );
+
+			if ( Math.abs( m23 ) < 0.99999 ) {
+
+				this._y = Math.atan2( m13, m33 );
+				this._z = Math.atan2( m21, m22 );
+
+			} else {
+
+				this._y = Math.atan2( - m31, m11 );
+				this._z = 0;
+
+			}
+
+		} else if ( order === 'ZXY' ) {
+
+			this._x = Math.asin( clamp( m32, - 1, 1 ) );
+
+			if ( Math.abs( m32 ) < 0.99999 ) {
+
+				this._y = Math.atan2( - m31, m33 );
+				this._z = Math.atan2( - m12, m22 );
+
+			} else {
+
+				this._y = 0;
+				this._z = Math.atan2( m21, m11 );
+
+			}
+
+		} else if ( order === 'ZYX' ) {
+
+			this._y = Math.asin( - clamp( m31, - 1, 1 ) );
+
+			if ( Math.abs( m31 ) < 0.99999 ) {
+
+				this._x = Math.atan2( m32, m33 );
+				this._z = Math.atan2( m21, m11 );
+
+			} else {
+
+				this._x = 0;
+				this._z = Math.atan2( - m12, m22 );
+
+			}
+
+		} else if ( order === 'YZX' ) {
+
+			this._z = Math.asin( clamp( m21, - 1, 1 ) );
+
+			if ( Math.abs( m21 ) < 0.99999 ) {
+
+				this._x = Math.atan2( - m23, m22 );
+				this._y = Math.atan2( - m31, m11 );
+
+			} else {
+
+				this._x = 0;
+				this._y = Math.atan2( m13, m33 );
+
+			}
+
+		} else if ( order === 'XZY' ) {
+
+			this._z = Math.asin( - clamp( m12, - 1, 1 ) );
+
+			if ( Math.abs( m12 ) < 0.99999 ) {
+
+				this._x = Math.atan2( m32, m22 );
+				this._y = Math.atan2( m13, m11 );
+
+			} else {
+
+				this._x = Math.atan2( - m23, m33 );
+				this._y = 0;
+
+			}
+
+		} else {
+
+			console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );
+
+		}
+
+		this._order = order;
+
+		if ( update !== false ) this.onChangeCallback();
+
+		return this;
+
+	},
+
+	setFromQuaternion: function () {
+
+		var matrix = new Matrix4();
+
+		return function setFromQuaternion( q, order, update ) {
+
+			matrix.makeRotationFromQuaternion( q );
+
+			return this.setFromRotationMatrix( matrix, order, update );
+
+		};
+
+	}(),
+
+	setFromVector3: function ( v, order ) {
+
+		return this.set( v.x, v.y, v.z, order || this._order );
+
+	},
+
+	reorder: function () {
+
+		// WARNING: this discards revolution information -bhouston
+
+		var q = new Quaternion();
+
+		return function reorder( newOrder ) {
+
+			q.setFromEuler( this );
+
+			return this.setFromQuaternion( q, newOrder );
+
+		};
+
+	}(),
+
+	equals: function ( euler ) {
+
+		return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );
+
+	},
+
+	fromArray: function ( array ) {
+
+		this._x = array[ 0 ];
+		this._y = array[ 1 ];
+		this._z = array[ 2 ];
+		if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];
+
+		this.onChangeCallback();
+
+		return this;
+
+	},
+
+	toArray: function ( array, offset ) {
+
+		if ( array === undefined ) array = [];
+		if ( offset === undefined ) offset = 0;
+
+		array[ offset ] = this._x;
+		array[ offset + 1 ] = this._y;
+		array[ offset + 2 ] = this._z;
+		array[ offset + 3 ] = this._order;
+
+		return array;
+
+	},
+
+	toVector3: function ( optionalResult ) {
+
+		if ( optionalResult ) {
+
+			return optionalResult.set( this._x, this._y, this._z );
+
+		} else {
+
+			return new Vector3( this._x, this._y, this._z );
+
+		}
+
+	},
+
+	onChange: function ( callback ) {
+
+		this.onChangeCallback = callback;
+
+		return this;
+
+	},
+
+	onChangeCallback: function () {}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Layers() {
+
+	this.mask = 1 | 0;
+
+}
+
+Object.assign( Layers.prototype, {
+
+	set: function ( channel ) {
+
+		this.mask = 1 << channel | 0;
+
+	},
+
+	enable: function ( channel ) {
+
+		this.mask |= 1 << channel | 0;
+
+	},
+
+	toggle: function ( channel ) {
+
+		this.mask ^= 1 << channel | 0;
+
+	},
+
+	disable: function ( channel ) {
+
+		this.mask &= ~ ( 1 << channel | 0 );
+
+	},
+
+	test: function ( layers ) {
+
+		return ( this.mask & layers.mask ) !== 0;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ * @author WestLangley / http://github.com/WestLangley
+ * @author elephantatwork / www.elephantatwork.ch
+ */
+
+var object3DId = 0;
+
+function Object3D() {
+
+	Object.defineProperty( this, 'id', { value: object3DId ++ } );
+
+	this.uuid = _Math.generateUUID();
+
+	this.name = '';
+	this.type = 'Object3D';
+
+	this.parent = null;
+	this.children = [];
+
+	this.up = Object3D.DefaultUp.clone();
+
+	var position = new Vector3();
+	var rotation = new Euler();
+	var quaternion = new Quaternion();
+	var scale = new Vector3( 1, 1, 1 );
+
+	function onRotationChange() {
+
+		quaternion.setFromEuler( rotation, false );
+
+	}
+
+	function onQuaternionChange() {
+
+		rotation.setFromQuaternion( quaternion, undefined, false );
+
+	}
+
+	rotation.onChange( onRotationChange );
+	quaternion.onChange( onQuaternionChange );
+
+	Object.defineProperties( this, {
+		position: {
+			enumerable: true,
+			value: position
+		},
+		rotation: {
+			enumerable: true,
+			value: rotation
+		},
+		quaternion: {
+			enumerable: true,
+			value: quaternion
+		},
+		scale: {
+			enumerable: true,
+			value: scale
+		},
+		modelViewMatrix: {
+			value: new Matrix4()
+		},
+		normalMatrix: {
+			value: new Matrix3()
+		}
+	} );
+
+	this.matrix = new Matrix4();
+	this.matrixWorld = new Matrix4();
+
+	this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
+	this.matrixWorldNeedsUpdate = false;
+
+	this.layers = new Layers();
+	this.visible = true;
+
+	this.castShadow = false;
+	this.receiveShadow = false;
+
+	this.frustumCulled = true;
+	this.renderOrder = 0;
+
+	this.userData = {};
+
+}
+
+Object3D.DefaultUp = new Vector3( 0, 1, 0 );
+Object3D.DefaultMatrixAutoUpdate = true;
+
+Object.assign( Object3D.prototype, EventDispatcher.prototype, {
+
+	isObject3D: true,
+
+	onBeforeRender: function () {},
+	onAfterRender: function () {},
+
+	applyMatrix: function ( matrix ) {
+
+		this.matrix.multiplyMatrices( matrix, this.matrix );
+
+		this.matrix.decompose( this.position, this.quaternion, this.scale );
+
+	},
+
+	applyQuaternion: function ( q ) {
+
+		this.quaternion.premultiply( q );
+
+		return this;
+
+	},
+
+	setRotationFromAxisAngle: function ( axis, angle ) {
+
+		// assumes axis is normalized
+
+		this.quaternion.setFromAxisAngle( axis, angle );
+
+	},
+
+	setRotationFromEuler: function ( euler ) {
+
+		this.quaternion.setFromEuler( euler, true );
+
+	},
+
+	setRotationFromMatrix: function ( m ) {
+
+		// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
+
+		this.quaternion.setFromRotationMatrix( m );
+
+	},
+
+	setRotationFromQuaternion: function ( q ) {
+
+		// assumes q is normalized
+
+		this.quaternion.copy( q );
+
+	},
+
+	rotateOnAxis: function () {
+
+		// rotate object on axis in object space
+		// axis is assumed to be normalized
+
+		var q1 = new Quaternion();
+
+		return function rotateOnAxis( axis, angle ) {
+
+			q1.setFromAxisAngle( axis, angle );
+
+			this.quaternion.multiply( q1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	rotateOnWorldAxis: function () {
+
+		// rotate object on axis in world space
+		// axis is assumed to be normalized
+		// method assumes no rotated parent
+
+		var q1 = new Quaternion();
+
+		return function rotateOnWorldAxis( axis, angle ) {
+
+			q1.setFromAxisAngle( axis, angle );
+
+			this.quaternion.premultiply( q1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	rotateX: function () {
+
+		var v1 = new Vector3( 1, 0, 0 );
+
+		return function rotateX( angle ) {
+
+			return this.rotateOnAxis( v1, angle );
+
+		};
+
+	}(),
+
+	rotateY: function () {
+
+		var v1 = new Vector3( 0, 1, 0 );
+
+		return function rotateY( angle ) {
+
+			return this.rotateOnAxis( v1, angle );
+
+		};
+
+	}(),
+
+	rotateZ: function () {
+
+		var v1 = new Vector3( 0, 0, 1 );
+
+		return function rotateZ( angle ) {
+
+			return this.rotateOnAxis( v1, angle );
+
+		};
+
+	}(),
+
+	translateOnAxis: function () {
+
+		// translate object by distance along axis in object space
+		// axis is assumed to be normalized
+
+		var v1 = new Vector3();
+
+		return function translateOnAxis( axis, distance ) {
+
+			v1.copy( axis ).applyQuaternion( this.quaternion );
+
+			this.position.add( v1.multiplyScalar( distance ) );
+
+			return this;
+
+		};
+
+	}(),
+
+	translateX: function () {
+
+		var v1 = new Vector3( 1, 0, 0 );
+
+		return function translateX( distance ) {
+
+			return this.translateOnAxis( v1, distance );
+
+		};
+
+	}(),
+
+	translateY: function () {
+
+		var v1 = new Vector3( 0, 1, 0 );
+
+		return function translateY( distance ) {
+
+			return this.translateOnAxis( v1, distance );
+
+		};
+
+	}(),
+
+	translateZ: function () {
+
+		var v1 = new Vector3( 0, 0, 1 );
+
+		return function translateZ( distance ) {
+
+			return this.translateOnAxis( v1, distance );
+
+		};
+
+	}(),
+
+	localToWorld: function ( vector ) {
+
+		return vector.applyMatrix4( this.matrixWorld );
+
+	},
+
+	worldToLocal: function () {
+
+		var m1 = new Matrix4();
+
+		return function worldToLocal( vector ) {
+
+			return vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );
+
+		};
+
+	}(),
+
+	lookAt: function () {
+
+		// This method does not support objects with rotated and/or translated parent(s)
+
+		var m1 = new Matrix4();
+		var vector = new Vector3();
+
+		return function lookAt( x, y, z ) {
+
+			if ( x.isVector3 ) {
+
+				vector.copy( x );
+
+			} else {
+
+				vector.set( x, y, z );
+
+			}
+
+			if ( this.isCamera ) {
+
+				m1.lookAt( this.position, vector, this.up );
+
+			} else {
+
+				m1.lookAt( vector, this.position, this.up );
+
+			}
+
+			this.quaternion.setFromRotationMatrix( m1 );
+
+		};
+
+	}(),
+
+	add: function ( object ) {
+
+		if ( arguments.length > 1 ) {
+
+			for ( var i = 0; i < arguments.length; i ++ ) {
+
+				this.add( arguments[ i ] );
+
+			}
+
+			return this;
+
+		}
+
+		if ( object === this ) {
+
+			console.error( "THREE.Object3D.add: object can't be added as a child of itself.", object );
+			return this;
+
+		}
+
+		if ( ( object && object.isObject3D ) ) {
+
+			if ( object.parent !== null ) {
+
+				object.parent.remove( object );
+
+			}
+
+			object.parent = this;
+			object.dispatchEvent( { type: 'added' } );
+
+			this.children.push( object );
+
+		} else {
+
+			console.error( "THREE.Object3D.add: object not an instance of THREE.Object3D.", object );
+
+		}
+
+		return this;
+
+	},
+
+	remove: function ( object ) {
+
+		if ( arguments.length > 1 ) {
+
+			for ( var i = 0; i < arguments.length; i ++ ) {
+
+				this.remove( arguments[ i ] );
+
+			}
+
+			return this;
+
+		}
+
+		var index = this.children.indexOf( object );
+
+		if ( index !== - 1 ) {
+
+			object.parent = null;
+
+			object.dispatchEvent( { type: 'removed' } );
+
+			this.children.splice( index, 1 );
+
+		}
+
+		return this;
+
+	},
+
+	getObjectById: function ( id ) {
+
+		return this.getObjectByProperty( 'id', id );
+
+	},
+
+	getObjectByName: function ( name ) {
+
+		return this.getObjectByProperty( 'name', name );
+
+	},
+
+	getObjectByProperty: function ( name, value ) {
+
+		if ( this[ name ] === value ) return this;
+
+		for ( var i = 0, l = this.children.length; i < l; i ++ ) {
+
+			var child = this.children[ i ];
+			var object = child.getObjectByProperty( name, value );
+
+			if ( object !== undefined ) {
+
+				return object;
+
+			}
+
+		}
+
+		return undefined;
+
+	},
+
+	getWorldPosition: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+
+		this.updateMatrixWorld( true );
+
+		return result.setFromMatrixPosition( this.matrixWorld );
+
+	},
+
+	getWorldQuaternion: function () {
+
+		var position = new Vector3();
+		var scale = new Vector3();
+
+		return function getWorldQuaternion( optionalTarget ) {
+
+			var result = optionalTarget || new Quaternion();
+
+			this.updateMatrixWorld( true );
+
+			this.matrixWorld.decompose( position, result, scale );
+
+			return result;
+
+		};
+
+	}(),
+
+	getWorldRotation: function () {
+
+		var quaternion = new Quaternion();
+
+		return function getWorldRotation( optionalTarget ) {
+
+			var result = optionalTarget || new Euler();
+
+			this.getWorldQuaternion( quaternion );
+
+			return result.setFromQuaternion( quaternion, this.rotation.order, false );
+
+		};
+
+	}(),
+
+	getWorldScale: function () {
+
+		var position = new Vector3();
+		var quaternion = new Quaternion();
+
+		return function getWorldScale( optionalTarget ) {
+
+			var result = optionalTarget || new Vector3();
+
+			this.updateMatrixWorld( true );
+
+			this.matrixWorld.decompose( position, quaternion, result );
+
+			return result;
+
+		};
+
+	}(),
+
+	getWorldDirection: function () {
+
+		var quaternion = new Quaternion();
+
+		return function getWorldDirection( optionalTarget ) {
+
+			var result = optionalTarget || new Vector3();
+
+			this.getWorldQuaternion( quaternion );
+
+			return result.set( 0, 0, 1 ).applyQuaternion( quaternion );
+
+		};
+
+	}(),
+
+	raycast: function () {},
+
+	traverse: function ( callback ) {
+
+		callback( this );
+
+		var children = this.children;
+
+		for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+			children[ i ].traverse( callback );
+
+		}
+
+	},
+
+	traverseVisible: function ( callback ) {
+
+		if ( this.visible === false ) return;
+
+		callback( this );
+
+		var children = this.children;
+
+		for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+			children[ i ].traverseVisible( callback );
+
+		}
+
+	},
+
+	traverseAncestors: function ( callback ) {
+
+		var parent = this.parent;
+
+		if ( parent !== null ) {
+
+			callback( parent );
+
+			parent.traverseAncestors( callback );
+
+		}
+
+	},
+
+	updateMatrix: function () {
+
+		this.matrix.compose( this.position, this.quaternion, this.scale );
+
+		this.matrixWorldNeedsUpdate = true;
+
+	},
+
+	updateMatrixWorld: function ( force ) {
+
+		if ( this.matrixAutoUpdate ) this.updateMatrix();
+
+		if ( this.matrixWorldNeedsUpdate || force ) {
+
+			if ( this.parent === null ) {
+
+				this.matrixWorld.copy( this.matrix );
+
+			} else {
+
+				this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );
+
+			}
+
+			this.matrixWorldNeedsUpdate = false;
+
+			force = true;
+
+		}
+
+		// update children
+
+		var children = this.children;
+
+		for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+			children[ i ].updateMatrixWorld( force );
+
+		}
+
+	},
+
+	toJSON: function ( meta ) {
+
+		// meta is a string when called from JSON.stringify
+		var isRootObject = ( meta === undefined || typeof meta === 'string' );
+
+		var output = {};
+
+		// meta is a hash used to collect geometries, materials.
+		// not providing it implies that this is the root object
+		// being serialized.
+		if ( isRootObject ) {
+
+			// initialize meta obj
+			meta = {
+				geometries: {},
+				materials: {},
+				textures: {},
+				images: {}
+			};
+
+			output.metadata = {
+				version: 4.5,
+				type: 'Object',
+				generator: 'Object3D.toJSON'
+			};
+
+		}
+
+		// standard Object3D serialization
+
+		var object = {};
+
+		object.uuid = this.uuid;
+		object.type = this.type;
+
+		if ( this.name !== '' ) object.name = this.name;
+		if ( this.castShadow === true ) object.castShadow = true;
+		if ( this.receiveShadow === true ) object.receiveShadow = true;
+		if ( this.visible === false ) object.visible = false;
+		if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;
+
+		object.matrix = this.matrix.toArray();
+
+		//
+
+		function serialize( library, element ) {
+
+			if ( library[ element.uuid ] === undefined ) {
+
+				library[ element.uuid ] = element.toJSON( meta );
+
+			}
+
+			return element.uuid;
+
+		}
+
+		if ( this.geometry !== undefined ) {
+
+			object.geometry = serialize( meta.geometries, this.geometry );
+
+		}
+
+		if ( this.material !== undefined ) {
+
+			if ( Array.isArray( this.material ) ) {
+
+				var uuids = [];
+
+				for ( var i = 0, l = this.material.length; i < l; i ++ ) {
+
+					uuids.push( serialize( meta.materials, this.material[ i ] ) );
+
+				}
+
+				object.material = uuids;
+
+			} else {
+
+				object.material = serialize( meta.materials, this.material );
+
+			}
+
+		}
+
+		//
+
+		if ( this.children.length > 0 ) {
+
+			object.children = [];
+
+			for ( var i = 0; i < this.children.length; i ++ ) {
+
+				object.children.push( this.children[ i ].toJSON( meta ).object );
+
+			}
+
+		}
+
+		if ( isRootObject ) {
+
+			var geometries = extractFromCache( meta.geometries );
+			var materials = extractFromCache( meta.materials );
+			var textures = extractFromCache( meta.textures );
+			var images = extractFromCache( meta.images );
+
+			if ( geometries.length > 0 ) output.geometries = geometries;
+			if ( materials.length > 0 ) output.materials = materials;
+			if ( textures.length > 0 ) output.textures = textures;
+			if ( images.length > 0 ) output.images = images;
+
+		}
+
+		output.object = object;
+
+		return output;
+
+		// extract data from the cache hash
+		// remove metadata on each item
+		// and return as array
+		function extractFromCache( cache ) {
+
+			var values = [];
+			for ( var key in cache ) {
+
+				var data = cache[ key ];
+				delete data.metadata;
+				values.push( data );
+
+			}
+			return values;
+
+		}
+
+	},
+
+	clone: function ( recursive ) {
+
+		return new this.constructor().copy( this, recursive );
+
+	},
+
+	copy: function ( source, recursive ) {
+
+		if ( recursive === undefined ) recursive = true;
+
+		this.name = source.name;
+
+		this.up.copy( source.up );
+
+		this.position.copy( source.position );
+		this.quaternion.copy( source.quaternion );
+		this.scale.copy( source.scale );
+
+		this.matrix.copy( source.matrix );
+		this.matrixWorld.copy( source.matrixWorld );
+
+		this.matrixAutoUpdate = source.matrixAutoUpdate;
+		this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;
+
+		this.layers.mask = source.layers.mask;
+		this.visible = source.visible;
+
+		this.castShadow = source.castShadow;
+		this.receiveShadow = source.receiveShadow;
+
+		this.frustumCulled = source.frustumCulled;
+		this.renderOrder = source.renderOrder;
+
+		this.userData = JSON.parse( JSON.stringify( source.userData ) );
+
+		if ( recursive === true ) {
+
+			for ( var i = 0; i < source.children.length; i ++ ) {
+
+				var child = source.children[ i ];
+				this.add( child.clone() );
+
+			}
+
+		}
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author mikael emtinger / http://gomo.se/
+ * @author WestLangley / http://github.com/WestLangley
+*/
+
+function Camera() {
+
+	Object3D.call( this );
+
+	this.type = 'Camera';
+
+	this.matrixWorldInverse = new Matrix4();
+	this.projectionMatrix = new Matrix4();
+
+}
+
+Camera.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Camera,
+
+	isCamera: true,
+
+	copy: function ( source, recursive ) {
+
+		Object3D.prototype.copy.call( this, source, recursive );
+
+		this.matrixWorldInverse.copy( source.matrixWorldInverse );
+		this.projectionMatrix.copy( source.projectionMatrix );
+
+		return this;
+
+	},
+
+	getWorldDirection: function () {
+
+		var quaternion = new Quaternion();
+
+		return function getWorldDirection( optionalTarget ) {
+
+			var result = optionalTarget || new Vector3();
+
+			this.getWorldQuaternion( quaternion );
+
+			return result.set( 0, 0, - 1 ).applyQuaternion( quaternion );
+
+		};
+
+	}(),
+
+	updateMatrixWorld: function ( force ) {
+
+		Object3D.prototype.updateMatrixWorld.call( this, force );
+
+		this.matrixWorldInverse.getInverse( this.matrixWorld );
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author arose / http://github.com/arose
+ */
+
+function OrthographicCamera( left, right, top, bottom, near, far ) {
+
+	Camera.call( this );
+
+	this.type = 'OrthographicCamera';
+
+	this.zoom = 1;
+	this.view = null;
+
+	this.left = left;
+	this.right = right;
+	this.top = top;
+	this.bottom = bottom;
+
+	this.near = ( near !== undefined ) ? near : 0.1;
+	this.far = ( far !== undefined ) ? far : 2000;
+
+	this.updateProjectionMatrix();
+
+}
+
+OrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {
+
+	constructor: OrthographicCamera,
+
+	isOrthographicCamera: true,
+
+	copy: function ( source, recursive ) {
+
+		Camera.prototype.copy.call( this, source, recursive );
+
+		this.left = source.left;
+		this.right = source.right;
+		this.top = source.top;
+		this.bottom = source.bottom;
+		this.near = source.near;
+		this.far = source.far;
+
+		this.zoom = source.zoom;
+		this.view = source.view === null ? null : Object.assign( {}, source.view );
+
+		return this;
+
+	},
+
+	setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {
+
+		if ( this.view === null ) {
+
+			this.view = {
+				enabled: true,
+				fullWidth: 1,
+				fullHeight: 1,
+				offsetX: 0,
+				offsetY: 0,
+				width: 1,
+				height: 1
+			};
+
+		}
+
+		this.view.enabled = true;
+		this.view.fullWidth = fullWidth;
+		this.view.fullHeight = fullHeight;
+		this.view.offsetX = x;
+		this.view.offsetY = y;
+		this.view.width = width;
+		this.view.height = height;
+
+		this.updateProjectionMatrix();
+
+	},
+
+	clearViewOffset: function () {
+
+		if ( this.view !== null ) {
+
+			this.view.enabled = false;
+
+		}
+
+		this.updateProjectionMatrix();
+
+	},
+
+	updateProjectionMatrix: function () {
+
+		var dx = ( this.right - this.left ) / ( 2 * this.zoom );
+		var dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
+		var cx = ( this.right + this.left ) / 2;
+		var cy = ( this.top + this.bottom ) / 2;
+
+		var left = cx - dx;
+		var right = cx + dx;
+		var top = cy + dy;
+		var bottom = cy - dy;
+
+		if ( this.view !== null && this.view.enabled ) {
+
+			var zoomW = this.zoom / ( this.view.width / this.view.fullWidth );
+			var zoomH = this.zoom / ( this.view.height / this.view.fullHeight );
+			var scaleW = ( this.right - this.left ) / this.view.width;
+			var scaleH = ( this.top - this.bottom ) / this.view.height;
+
+			left += scaleW * ( this.view.offsetX / zoomW );
+			right = left + scaleW * ( this.view.width / zoomW );
+			top -= scaleH * ( this.view.offsetY / zoomH );
+			bottom = top - scaleH * ( this.view.height / zoomH );
+
+		}
+
+		this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );
+
+	},
+
+	toJSON: function ( meta ) {
+
+		var data = Object3D.prototype.toJSON.call( this, meta );
+
+		data.object.zoom = this.zoom;
+		data.object.left = this.left;
+		data.object.right = this.right;
+		data.object.top = this.top;
+		data.object.bottom = this.bottom;
+		data.object.near = this.near;
+		data.object.far = this.far;
+
+		if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );
+
+		return data;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function Face3( a, b, c, normal, color, materialIndex ) {
+
+	this.a = a;
+	this.b = b;
+	this.c = c;
+
+	this.normal = ( normal && normal.isVector3 ) ? normal : new Vector3();
+	this.vertexNormals = Array.isArray( normal ) ? normal : [];
+
+	this.color = ( color && color.isColor ) ? color : new Color();
+	this.vertexColors = Array.isArray( color ) ? color : [];
+
+	this.materialIndex = materialIndex !== undefined ? materialIndex : 0;
+
+}
+
+Object.assign( Face3.prototype, {
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( source ) {
+
+		this.a = source.a;
+		this.b = source.b;
+		this.c = source.c;
+
+		this.normal.copy( source.normal );
+		this.color.copy( source.color );
+
+		this.materialIndex = source.materialIndex;
+
+		for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {
+
+			this.vertexNormals[ i ] = source.vertexNormals[ i ].clone();
+
+		}
+
+		for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {
+
+			this.vertexColors[ i ] = source.vertexColors[ i ].clone();
+
+		}
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author kile / http://kile.stravaganza.org/
+ * @author alteredq / http://alteredqualia.com/
+ * @author mikael emtinger / http://gomo.se/
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ * @author bhouston / http://clara.io
+ */
+
+var geometryId = 0; // Geometry uses even numbers as Id
+
+function Geometry() {
+
+	Object.defineProperty( this, 'id', { value: geometryId += 2 } );
+
+	this.uuid = _Math.generateUUID();
+
+	this.name = '';
+	this.type = 'Geometry';
+
+	this.vertices = [];
+	this.colors = [];
+	this.faces = [];
+	this.faceVertexUvs = [[]];
+
+	this.morphTargets = [];
+	this.morphNormals = [];
+
+	this.skinWeights = [];
+	this.skinIndices = [];
+
+	this.lineDistances = [];
+
+	this.boundingBox = null;
+	this.boundingSphere = null;
+
+	// update flags
+
+	this.elementsNeedUpdate = false;
+	this.verticesNeedUpdate = false;
+	this.uvsNeedUpdate = false;
+	this.normalsNeedUpdate = false;
+	this.colorsNeedUpdate = false;
+	this.lineDistancesNeedUpdate = false;
+	this.groupsNeedUpdate = false;
+
+}
+
+Object.assign( Geometry.prototype, EventDispatcher.prototype, {
+
+	isGeometry: true,
+
+	applyMatrix: function ( matrix ) {
+
+		var normalMatrix = new Matrix3().getNormalMatrix( matrix );
+
+		for ( var i = 0, il = this.vertices.length; i < il; i ++ ) {
+
+			var vertex = this.vertices[ i ];
+			vertex.applyMatrix4( matrix );
+
+		}
+
+		for ( var i = 0, il = this.faces.length; i < il; i ++ ) {
+
+			var face = this.faces[ i ];
+			face.normal.applyMatrix3( normalMatrix ).normalize();
+
+			for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {
+
+				face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();
+
+			}
+
+		}
+
+		if ( this.boundingBox !== null ) {
+
+			this.computeBoundingBox();
+
+		}
+
+		if ( this.boundingSphere !== null ) {
+
+			this.computeBoundingSphere();
+
+		}
+
+		this.verticesNeedUpdate = true;
+		this.normalsNeedUpdate = true;
+
+		return this;
+
+	},
+
+	rotateX: function () {
+
+		// rotate geometry around world x-axis
+
+		var m1 = new Matrix4();
+
+		return function rotateX( angle ) {
+
+			m1.makeRotationX( angle );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	rotateY: function () {
+
+		// rotate geometry around world y-axis
+
+		var m1 = new Matrix4();
+
+		return function rotateY( angle ) {
+
+			m1.makeRotationY( angle );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	rotateZ: function () {
+
+		// rotate geometry around world z-axis
+
+		var m1 = new Matrix4();
+
+		return function rotateZ( angle ) {
+
+			m1.makeRotationZ( angle );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	translate: function () {
+
+		// translate geometry
+
+		var m1 = new Matrix4();
+
+		return function translate( x, y, z ) {
+
+			m1.makeTranslation( x, y, z );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	scale: function () {
+
+		// scale geometry
+
+		var m1 = new Matrix4();
+
+		return function scale( x, y, z ) {
+
+			m1.makeScale( x, y, z );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	lookAt: function () {
+
+		var obj = new Object3D();
+
+		return function lookAt( vector ) {
+
+			obj.lookAt( vector );
+
+			obj.updateMatrix();
+
+			this.applyMatrix( obj.matrix );
+
+		};
+
+	}(),
+
+	fromBufferGeometry: function ( geometry ) {
+
+		var scope = this;
+
+		var indices = geometry.index !== null ? geometry.index.array : undefined;
+		var attributes = geometry.attributes;
+
+		var positions = attributes.position.array;
+		var normals = attributes.normal !== undefined ? attributes.normal.array : undefined;
+		var colors = attributes.color !== undefined ? attributes.color.array : undefined;
+		var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;
+		var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;
+
+		if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];
+
+		var tempNormals = [];
+		var tempUVs = [];
+		var tempUVs2 = [];
+
+		for ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) {
+
+			scope.vertices.push( new Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) );
+
+			if ( normals !== undefined ) {
+
+				tempNormals.push( new Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) );
+
+			}
+
+			if ( colors !== undefined ) {
+
+				scope.colors.push( new Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) );
+
+			}
+
+			if ( uvs !== undefined ) {
+
+				tempUVs.push( new Vector2( uvs[ j ], uvs[ j + 1 ] ) );
+
+			}
+
+			if ( uvs2 !== undefined ) {
+
+				tempUVs2.push( new Vector2( uvs2[ j ], uvs2[ j + 1 ] ) );
+
+			}
+
+		}
+
+		function addFace( a, b, c, materialIndex ) {
+
+			var vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : [];
+			var vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : [];
+
+			var face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );
+
+			scope.faces.push( face );
+
+			if ( uvs !== undefined ) {
+
+				scope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] );
+
+			}
+
+			if ( uvs2 !== undefined ) {
+
+				scope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] );
+
+			}
+
+		}
+
+		var groups = geometry.groups;
+
+		if ( groups.length > 0 ) {
+
+			for ( var i = 0; i < groups.length; i ++ ) {
+
+				var group = groups[ i ];
+
+				var start = group.start;
+				var count = group.count;
+
+				for ( var j = start, jl = start + count; j < jl; j += 3 ) {
+
+					if ( indices !== undefined ) {
+
+						addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );
+
+					} else {
+
+						addFace( j, j + 1, j + 2, group.materialIndex );
+
+					}
+
+				}
+
+			}
+
+		} else {
+
+			if ( indices !== undefined ) {
+
+				for ( var i = 0; i < indices.length; i += 3 ) {
+
+					addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );
+
+				}
+
+			} else {
+
+				for ( var i = 0; i < positions.length / 3; i += 3 ) {
+
+					addFace( i, i + 1, i + 2 );
+
+				}
+
+			}
+
+		}
+
+		this.computeFaceNormals();
+
+		if ( geometry.boundingBox !== null ) {
+
+			this.boundingBox = geometry.boundingBox.clone();
+
+		}
+
+		if ( geometry.boundingSphere !== null ) {
+
+			this.boundingSphere = geometry.boundingSphere.clone();
+
+		}
+
+		return this;
+
+	},
+
+	center: function () {
+
+		this.computeBoundingBox();
+
+		var offset = this.boundingBox.getCenter().negate();
+
+		this.translate( offset.x, offset.y, offset.z );
+
+		return offset;
+
+	},
+
+	normalize: function () {
+
+		this.computeBoundingSphere();
+
+		var center = this.boundingSphere.center;
+		var radius = this.boundingSphere.radius;
+
+		var s = radius === 0 ? 1 : 1.0 / radius;
+
+		var matrix = new Matrix4();
+		matrix.set(
+			s, 0, 0, - s * center.x,
+			0, s, 0, - s * center.y,
+			0, 0, s, - s * center.z,
+			0, 0, 0, 1
+		);
+
+		this.applyMatrix( matrix );
+
+		return this;
+
+	},
+
+	computeFaceNormals: function () {
+
+		var cb = new Vector3(), ab = new Vector3();
+
+		for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+			var face = this.faces[ f ];
+
+			var vA = this.vertices[ face.a ];
+			var vB = this.vertices[ face.b ];
+			var vC = this.vertices[ face.c ];
+
+			cb.subVectors( vC, vB );
+			ab.subVectors( vA, vB );
+			cb.cross( ab );
+
+			cb.normalize();
+
+			face.normal.copy( cb );
+
+		}
+
+	},
+
+	computeVertexNormals: function ( areaWeighted ) {
+
+		if ( areaWeighted === undefined ) areaWeighted = true;
+
+		var v, vl, f, fl, face, vertices;
+
+		vertices = new Array( this.vertices.length );
+
+		for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {
+
+			vertices[ v ] = new Vector3();
+
+		}
+
+		if ( areaWeighted ) {
+
+			// vertex normals weighted by triangle areas
+			// http://www.iquilezles.org/www/articles/normals/normals.htm
+
+			var vA, vB, vC;
+			var cb = new Vector3(), ab = new Vector3();
+
+			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+				face = this.faces[ f ];
+
+				vA = this.vertices[ face.a ];
+				vB = this.vertices[ face.b ];
+				vC = this.vertices[ face.c ];
+
+				cb.subVectors( vC, vB );
+				ab.subVectors( vA, vB );
+				cb.cross( ab );
+
+				vertices[ face.a ].add( cb );
+				vertices[ face.b ].add( cb );
+				vertices[ face.c ].add( cb );
+
+			}
+
+		} else {
+
+			this.computeFaceNormals();
+
+			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+				face = this.faces[ f ];
+
+				vertices[ face.a ].add( face.normal );
+				vertices[ face.b ].add( face.normal );
+				vertices[ face.c ].add( face.normal );
+
+			}
+
+		}
+
+		for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {
+
+			vertices[ v ].normalize();
+
+		}
+
+		for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+			face = this.faces[ f ];
+
+			var vertexNormals = face.vertexNormals;
+
+			if ( vertexNormals.length === 3 ) {
+
+				vertexNormals[ 0 ].copy( vertices[ face.a ] );
+				vertexNormals[ 1 ].copy( vertices[ face.b ] );
+				vertexNormals[ 2 ].copy( vertices[ face.c ] );
+
+			} else {
+
+				vertexNormals[ 0 ] = vertices[ face.a ].clone();
+				vertexNormals[ 1 ] = vertices[ face.b ].clone();
+				vertexNormals[ 2 ] = vertices[ face.c ].clone();
+
+			}
+
+		}
+
+		if ( this.faces.length > 0 ) {
+
+			this.normalsNeedUpdate = true;
+
+		}
+
+	},
+
+	computeFlatVertexNormals: function () {
+
+		var f, fl, face;
+
+		this.computeFaceNormals();
+
+		for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+			face = this.faces[ f ];
+
+			var vertexNormals = face.vertexNormals;
+
+			if ( vertexNormals.length === 3 ) {
+
+				vertexNormals[ 0 ].copy( face.normal );
+				vertexNormals[ 1 ].copy( face.normal );
+				vertexNormals[ 2 ].copy( face.normal );
+
+			} else {
+
+				vertexNormals[ 0 ] = face.normal.clone();
+				vertexNormals[ 1 ] = face.normal.clone();
+				vertexNormals[ 2 ] = face.normal.clone();
+
+			}
+
+		}
+
+		if ( this.faces.length > 0 ) {
+
+			this.normalsNeedUpdate = true;
+
+		}
+
+	},
+
+	computeMorphNormals: function () {
+
+		var i, il, f, fl, face;
+
+		// save original normals
+		// - create temp variables on first access
+		//   otherwise just copy (for faster repeated calls)
+
+		for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+			face = this.faces[ f ];
+
+			if ( ! face.__originalFaceNormal ) {
+
+				face.__originalFaceNormal = face.normal.clone();
+
+			} else {
+
+				face.__originalFaceNormal.copy( face.normal );
+
+			}
+
+			if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];
+
+			for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {
+
+				if ( ! face.__originalVertexNormals[ i ] ) {
+
+					face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();
+
+				} else {
+
+					face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );
+
+				}
+
+			}
+
+		}
+
+		// use temp geometry to compute face and vertex normals for each morph
+
+		var tmpGeo = new Geometry();
+		tmpGeo.faces = this.faces;
+
+		for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {
+
+			// create on first access
+
+			if ( ! this.morphNormals[ i ] ) {
+
+				this.morphNormals[ i ] = {};
+				this.morphNormals[ i ].faceNormals = [];
+				this.morphNormals[ i ].vertexNormals = [];
+
+				var dstNormalsFace = this.morphNormals[ i ].faceNormals;
+				var dstNormalsVertex = this.morphNormals[ i ].vertexNormals;
+
+				var faceNormal, vertexNormals;
+
+				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+					faceNormal = new Vector3();
+					vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };
+
+					dstNormalsFace.push( faceNormal );
+					dstNormalsVertex.push( vertexNormals );
+
+				}
+
+			}
+
+			var morphNormals = this.morphNormals[ i ];
+
+			// set vertices to morph target
+
+			tmpGeo.vertices = this.morphTargets[ i ].vertices;
+
+			// compute morph normals
+
+			tmpGeo.computeFaceNormals();
+			tmpGeo.computeVertexNormals();
+
+			// store morph normals
+
+			var faceNormal, vertexNormals;
+
+			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+				face = this.faces[ f ];
+
+				faceNormal = morphNormals.faceNormals[ f ];
+				vertexNormals = morphNormals.vertexNormals[ f ];
+
+				faceNormal.copy( face.normal );
+
+				vertexNormals.a.copy( face.vertexNormals[ 0 ] );
+				vertexNormals.b.copy( face.vertexNormals[ 1 ] );
+				vertexNormals.c.copy( face.vertexNormals[ 2 ] );
+
+			}
+
+		}
+
+		// restore original normals
+
+		for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
+
+			face = this.faces[ f ];
+
+			face.normal = face.__originalFaceNormal;
+			face.vertexNormals = face.__originalVertexNormals;
+
+		}
+
+	},
+
+	computeLineDistances: function () {
+
+		var d = 0;
+		var vertices = this.vertices;
+
+		for ( var i = 0, il = vertices.length; i < il; i ++ ) {
+
+			if ( i > 0 ) {
+
+				d += vertices[ i ].distanceTo( vertices[ i - 1 ] );
+
+			}
+
+			this.lineDistances[ i ] = d;
+
+		}
+
+	},
+
+	computeBoundingBox: function () {
+
+		if ( this.boundingBox === null ) {
+
+			this.boundingBox = new Box3();
+
+		}
+
+		this.boundingBox.setFromPoints( this.vertices );
+
+	},
+
+	computeBoundingSphere: function () {
+
+		if ( this.boundingSphere === null ) {
+
+			this.boundingSphere = new Sphere();
+
+		}
+
+		this.boundingSphere.setFromPoints( this.vertices );
+
+	},
+
+	merge: function ( geometry, matrix, materialIndexOffset ) {
+
+		if ( ! ( geometry && geometry.isGeometry ) ) {
+
+			console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );
+			return;
+
+		}
+
+		var normalMatrix,
+			vertexOffset = this.vertices.length,
+			vertices1 = this.vertices,
+			vertices2 = geometry.vertices,
+			faces1 = this.faces,
+			faces2 = geometry.faces,
+			uvs1 = this.faceVertexUvs[ 0 ],
+			uvs2 = geometry.faceVertexUvs[ 0 ],
+			colors1 = this.colors,
+			colors2 = geometry.colors;
+
+		if ( materialIndexOffset === undefined ) materialIndexOffset = 0;
+
+		if ( matrix !== undefined ) {
+
+			normalMatrix = new Matrix3().getNormalMatrix( matrix );
+
+		}
+
+		// vertices
+
+		for ( var i = 0, il = vertices2.length; i < il; i ++ ) {
+
+			var vertex = vertices2[ i ];
+
+			var vertexCopy = vertex.clone();
+
+			if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );
+
+			vertices1.push( vertexCopy );
+
+		}
+
+		// colors
+
+		for ( var i = 0, il = colors2.length; i < il; i ++ ) {
+
+			colors1.push( colors2[ i ].clone() );
+
+		}
+
+		// faces
+
+		for ( i = 0, il = faces2.length; i < il; i ++ ) {
+
+			var face = faces2[ i ], faceCopy, normal, color,
+				faceVertexNormals = face.vertexNormals,
+				faceVertexColors = face.vertexColors;
+
+			faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );
+			faceCopy.normal.copy( face.normal );
+
+			if ( normalMatrix !== undefined ) {
+
+				faceCopy.normal.applyMatrix3( normalMatrix ).normalize();
+
+			}
+
+			for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {
+
+				normal = faceVertexNormals[ j ].clone();
+
+				if ( normalMatrix !== undefined ) {
+
+					normal.applyMatrix3( normalMatrix ).normalize();
+
+				}
+
+				faceCopy.vertexNormals.push( normal );
+
+			}
+
+			faceCopy.color.copy( face.color );
+
+			for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {
+
+				color = faceVertexColors[ j ];
+				faceCopy.vertexColors.push( color.clone() );
+
+			}
+
+			faceCopy.materialIndex = face.materialIndex + materialIndexOffset;
+
+			faces1.push( faceCopy );
+
+		}
+
+		// uvs
+
+		for ( i = 0, il = uvs2.length; i < il; i ++ ) {
+
+			var uv = uvs2[ i ], uvCopy = [];
+
+			if ( uv === undefined ) {
+
+				continue;
+
+			}
+
+			for ( var j = 0, jl = uv.length; j < jl; j ++ ) {
+
+				uvCopy.push( uv[ j ].clone() );
+
+			}
+
+			uvs1.push( uvCopy );
+
+		}
+
+	},
+
+	mergeMesh: function ( mesh ) {
+
+		if ( ! ( mesh && mesh.isMesh ) ) {
+
+			console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );
+			return;
+
+		}
+
+		mesh.matrixAutoUpdate && mesh.updateMatrix();
+
+		this.merge( mesh.geometry, mesh.matrix );
+
+	},
+
+	/*
+	 * Checks for duplicate vertices with hashmap.
+	 * Duplicated vertices are removed
+	 * and faces' vertices are updated.
+	 */
+
+	mergeVertices: function () {
+
+		var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)
+		var unique = [], changes = [];
+
+		var v, key;
+		var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001
+		var precision = Math.pow( 10, precisionPoints );
+		var i, il, face;
+		var indices, j, jl;
+
+		for ( i = 0, il = this.vertices.length; i < il; i ++ ) {
+
+			v = this.vertices[ i ];
+			key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );
+
+			if ( verticesMap[ key ] === undefined ) {
+
+				verticesMap[ key ] = i;
+				unique.push( this.vertices[ i ] );
+				changes[ i ] = unique.length - 1;
+
+			} else {
+
+				//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
+				changes[ i ] = changes[ verticesMap[ key ] ];
+
+			}
+
+		}
+
+
+		// if faces are completely degenerate after merging vertices, we
+		// have to remove them from the geometry.
+		var faceIndicesToRemove = [];
+
+		for ( i = 0, il = this.faces.length; i < il; i ++ ) {
+
+			face = this.faces[ i ];
+
+			face.a = changes[ face.a ];
+			face.b = changes[ face.b ];
+			face.c = changes[ face.c ];
+
+			indices = [ face.a, face.b, face.c ];
+
+			// if any duplicate vertices are found in a Face3
+			// we have to remove the face as nothing can be saved
+			for ( var n = 0; n < 3; n ++ ) {
+
+				if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {
+
+					faceIndicesToRemove.push( i );
+					break;
+
+				}
+
+			}
+
+		}
+
+		for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {
+
+			var idx = faceIndicesToRemove[ i ];
+
+			this.faces.splice( idx, 1 );
+
+			for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {
+
+				this.faceVertexUvs[ j ].splice( idx, 1 );
+
+			}
+
+		}
+
+		// Use unique set of vertices
+
+		var diff = this.vertices.length - unique.length;
+		this.vertices = unique;
+		return diff;
+
+	},
+
+	setFromPoints: function ( points ) {
+
+		this.vertices = [];
+
+		for ( var i = 0, l = points.length; i < l; i ++ ) {
+
+			var point = points[ i ];
+			this.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );
+
+		}
+
+		return this;
+
+	},
+
+	sortFacesByMaterialIndex: function () {
+
+		var faces = this.faces;
+		var length = faces.length;
+
+		// tag faces
+
+		for ( var i = 0; i < length; i ++ ) {
+
+			faces[ i ]._id = i;
+
+		}
+
+		// sort faces
+
+		function materialIndexSort( a, b ) {
+
+			return a.materialIndex - b.materialIndex;
+
+		}
+
+		faces.sort( materialIndexSort );
+
+		// sort uvs
+
+		var uvs1 = this.faceVertexUvs[ 0 ];
+		var uvs2 = this.faceVertexUvs[ 1 ];
+
+		var newUvs1, newUvs2;
+
+		if ( uvs1 && uvs1.length === length ) newUvs1 = [];
+		if ( uvs2 && uvs2.length === length ) newUvs2 = [];
+
+		for ( var i = 0; i < length; i ++ ) {
+
+			var id = faces[ i ]._id;
+
+			if ( newUvs1 ) newUvs1.push( uvs1[ id ] );
+			if ( newUvs2 ) newUvs2.push( uvs2[ id ] );
+
+		}
+
+		if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;
+		if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;
+
+	},
+
+	toJSON: function () {
+
+		var data = {
+			metadata: {
+				version: 4.5,
+				type: 'Geometry',
+				generator: 'Geometry.toJSON'
+			}
+		};
+
+		// standard Geometry serialization
+
+		data.uuid = this.uuid;
+		data.type = this.type;
+		if ( this.name !== '' ) data.name = this.name;
+
+		if ( this.parameters !== undefined ) {
+
+			var parameters = this.parameters;
+
+			for ( var key in parameters ) {
+
+				if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];
+
+			}
+
+			return data;
+
+		}
+
+		var vertices = [];
+
+		for ( var i = 0; i < this.vertices.length; i ++ ) {
+
+			var vertex = this.vertices[ i ];
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+		}
+
+		var faces = [];
+		var normals = [];
+		var normalsHash = {};
+		var colors = [];
+		var colorsHash = {};
+		var uvs = [];
+		var uvsHash = {};
+
+		for ( var i = 0; i < this.faces.length; i ++ ) {
+
+			var face = this.faces[ i ];
+
+			var hasMaterial = true;
+			var hasFaceUv = false; // deprecated
+			var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;
+			var hasFaceNormal = face.normal.length() > 0;
+			var hasFaceVertexNormal = face.vertexNormals.length > 0;
+			var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;
+			var hasFaceVertexColor = face.vertexColors.length > 0;
+
+			var faceType = 0;
+
+			faceType = setBit( faceType, 0, 0 ); // isQuad
+			faceType = setBit( faceType, 1, hasMaterial );
+			faceType = setBit( faceType, 2, hasFaceUv );
+			faceType = setBit( faceType, 3, hasFaceVertexUv );
+			faceType = setBit( faceType, 4, hasFaceNormal );
+			faceType = setBit( faceType, 5, hasFaceVertexNormal );
+			faceType = setBit( faceType, 6, hasFaceColor );
+			faceType = setBit( faceType, 7, hasFaceVertexColor );
+
+			faces.push( faceType );
+			faces.push( face.a, face.b, face.c );
+			faces.push( face.materialIndex );
+
+			if ( hasFaceVertexUv ) {
+
+				var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];
+
+				faces.push(
+					getUvIndex( faceVertexUvs[ 0 ] ),
+					getUvIndex( faceVertexUvs[ 1 ] ),
+					getUvIndex( faceVertexUvs[ 2 ] )
+				);
+
+			}
+
+			if ( hasFaceNormal ) {
+
+				faces.push( getNormalIndex( face.normal ) );
+
+			}
+
+			if ( hasFaceVertexNormal ) {
+
+				var vertexNormals = face.vertexNormals;
+
+				faces.push(
+					getNormalIndex( vertexNormals[ 0 ] ),
+					getNormalIndex( vertexNormals[ 1 ] ),
+					getNormalIndex( vertexNormals[ 2 ] )
+				);
+
+			}
+
+			if ( hasFaceColor ) {
+
+				faces.push( getColorIndex( face.color ) );
+
+			}
+
+			if ( hasFaceVertexColor ) {
+
+				var vertexColors = face.vertexColors;
+
+				faces.push(
+					getColorIndex( vertexColors[ 0 ] ),
+					getColorIndex( vertexColors[ 1 ] ),
+					getColorIndex( vertexColors[ 2 ] )
+				);
+
+			}
+
+		}
+
+		function setBit( value, position, enabled ) {
+
+			return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );
+
+		}
+
+		function getNormalIndex( normal ) {
+
+			var hash = normal.x.toString() + normal.y.toString() + normal.z.toString();
+
+			if ( normalsHash[ hash ] !== undefined ) {
+
+				return normalsHash[ hash ];
+
+			}
+
+			normalsHash[ hash ] = normals.length / 3;
+			normals.push( normal.x, normal.y, normal.z );
+
+			return normalsHash[ hash ];
+
+		}
+
+		function getColorIndex( color ) {
+
+			var hash = color.r.toString() + color.g.toString() + color.b.toString();
+
+			if ( colorsHash[ hash ] !== undefined ) {
+
+				return colorsHash[ hash ];
+
+			}
+
+			colorsHash[ hash ] = colors.length;
+			colors.push( color.getHex() );
+
+			return colorsHash[ hash ];
+
+		}
+
+		function getUvIndex( uv ) {
+
+			var hash = uv.x.toString() + uv.y.toString();
+
+			if ( uvsHash[ hash ] !== undefined ) {
+
+				return uvsHash[ hash ];
+
+			}
+
+			uvsHash[ hash ] = uvs.length / 2;
+			uvs.push( uv.x, uv.y );
+
+			return uvsHash[ hash ];
+
+		}
+
+		data.data = {};
+
+		data.data.vertices = vertices;
+		data.data.normals = normals;
+		if ( colors.length > 0 ) data.data.colors = colors;
+		if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility
+		data.data.faces = faces;
+
+		return data;
+
+	},
+
+	clone: function () {
+
+		/*
+		 // Handle primitives
+
+		 var parameters = this.parameters;
+
+		 if ( parameters !== undefined ) {
+
+		 var values = [];
+
+		 for ( var key in parameters ) {
+
+		 values.push( parameters[ key ] );
+
+		 }
+
+		 var geometry = Object.create( this.constructor.prototype );
+		 this.constructor.apply( geometry, values );
+		 return geometry;
+
+		 }
+
+		 return new this.constructor().copy( this );
+		 */
+
+		return new Geometry().copy( this );
+
+	},
+
+	copy: function ( source ) {
+
+		var i, il, j, jl, k, kl;
+
+		// reset
+
+		this.vertices = [];
+		this.colors = [];
+		this.faces = [];
+		this.faceVertexUvs = [[]];
+		this.morphTargets = [];
+		this.morphNormals = [];
+		this.skinWeights = [];
+		this.skinIndices = [];
+		this.lineDistances = [];
+		this.boundingBox = null;
+		this.boundingSphere = null;
+
+		// name
+
+		this.name = source.name;
+
+		// vertices
+
+		var vertices = source.vertices;
+
+		for ( i = 0, il = vertices.length; i < il; i ++ ) {
+
+			this.vertices.push( vertices[ i ].clone() );
+
+		}
+
+		// colors
+
+		var colors = source.colors;
+
+		for ( i = 0, il = colors.length; i < il; i ++ ) {
+
+			this.colors.push( colors[ i ].clone() );
+
+		}
+
+		// faces
+
+		var faces = source.faces;
+
+		for ( i = 0, il = faces.length; i < il; i ++ ) {
+
+			this.faces.push( faces[ i ].clone() );
+
+		}
+
+		// face vertex uvs
+
+		for ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {
+
+			var faceVertexUvs = source.faceVertexUvs[ i ];
+
+			if ( this.faceVertexUvs[ i ] === undefined ) {
+
+				this.faceVertexUvs[ i ] = [];
+
+			}
+
+			for ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {
+
+				var uvs = faceVertexUvs[ j ], uvsCopy = [];
+
+				for ( k = 0, kl = uvs.length; k < kl; k ++ ) {
+
+					var uv = uvs[ k ];
+
+					uvsCopy.push( uv.clone() );
+
+				}
+
+				this.faceVertexUvs[ i ].push( uvsCopy );
+
+			}
+
+		}
+
+		// morph targets
+
+		var morphTargets = source.morphTargets;
+
+		for ( i = 0, il = morphTargets.length; i < il; i ++ ) {
+
+			var morphTarget = {};
+			morphTarget.name = morphTargets[ i ].name;
+
+			// vertices
+
+			if ( morphTargets[ i ].vertices !== undefined ) {
+
+				morphTarget.vertices = [];
+
+				for ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) {
+
+					morphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() );
+
+				}
+
+			}
+
+			// normals
+
+			if ( morphTargets[ i ].normals !== undefined ) {
+
+				morphTarget.normals = [];
+
+				for ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) {
+
+					morphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() );
+
+				}
+
+			}
+
+			this.morphTargets.push( morphTarget );
+
+		}
+
+		// morph normals
+
+		var morphNormals = source.morphNormals;
+
+		for ( i = 0, il = morphNormals.length; i < il; i ++ ) {
+
+			var morphNormal = {};
+
+			// vertex normals
+
+			if ( morphNormals[ i ].vertexNormals !== undefined ) {
+
+				morphNormal.vertexNormals = [];
+
+				for ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) {
+
+					var srcVertexNormal = morphNormals[ i ].vertexNormals[ j ];
+					var destVertexNormal = {};
+
+					destVertexNormal.a = srcVertexNormal.a.clone();
+					destVertexNormal.b = srcVertexNormal.b.clone();
+					destVertexNormal.c = srcVertexNormal.c.clone();
+
+					morphNormal.vertexNormals.push( destVertexNormal );
+
+				}
+
+			}
+
+			// face normals
+
+			if ( morphNormals[ i ].faceNormals !== undefined ) {
+
+				morphNormal.faceNormals = [];
+
+				for ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) {
+
+					morphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() );
+
+				}
+
+			}
+
+			this.morphNormals.push( morphNormal );
+
+		}
+
+		// skin weights
+
+		var skinWeights = source.skinWeights;
+
+		for ( i = 0, il = skinWeights.length; i < il; i ++ ) {
+
+			this.skinWeights.push( skinWeights[ i ].clone() );
+
+		}
+
+		// skin indices
+
+		var skinIndices = source.skinIndices;
+
+		for ( i = 0, il = skinIndices.length; i < il; i ++ ) {
+
+			this.skinIndices.push( skinIndices[ i ].clone() );
+
+		}
+
+		// line distances
+
+		var lineDistances = source.lineDistances;
+
+		for ( i = 0, il = lineDistances.length; i < il; i ++ ) {
+
+			this.lineDistances.push( lineDistances[ i ] );
+
+		}
+
+		// bounding box
+
+		var boundingBox = source.boundingBox;
+
+		if ( boundingBox !== null ) {
+
+			this.boundingBox = boundingBox.clone();
+
+		}
+
+		// bounding sphere
+
+		var boundingSphere = source.boundingSphere;
+
+		if ( boundingSphere !== null ) {
+
+			this.boundingSphere = boundingSphere.clone();
+
+		}
+
+		// update flags
+
+		this.elementsNeedUpdate = source.elementsNeedUpdate;
+		this.verticesNeedUpdate = source.verticesNeedUpdate;
+		this.uvsNeedUpdate = source.uvsNeedUpdate;
+		this.normalsNeedUpdate = source.normalsNeedUpdate;
+		this.colorsNeedUpdate = source.colorsNeedUpdate;
+		this.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate;
+		this.groupsNeedUpdate = source.groupsNeedUpdate;
+
+		return this;
+
+	},
+
+	dispose: function () {
+
+		this.dispatchEvent( { type: 'dispose' } );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function BufferAttribute( array, itemSize, normalized ) {
+
+	if ( Array.isArray( array ) ) {
+
+		throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
+
+	}
+
+	this.uuid = _Math.generateUUID();
+	this.name = '';
+
+	this.array = array;
+	this.itemSize = itemSize;
+	this.count = array !== undefined ? array.length / itemSize : 0;
+	this.normalized = normalized === true;
+
+	this.dynamic = false;
+	this.updateRange = { offset: 0, count: - 1 };
+
+	this.onUploadCallback = function () {};
+
+	this.version = 0;
+
+}
+
+Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', {
+
+	set: function ( value ) {
+
+		if ( value === true ) this.version ++;
+
+	}
+
+} );
+
+Object.assign( BufferAttribute.prototype, {
+
+	isBufferAttribute: true,
+
+	setArray: function ( array ) {
+
+		if ( Array.isArray( array ) ) {
+
+			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
+
+		}
+
+		this.count = array !== undefined ? array.length / this.itemSize : 0;
+		this.array = array;
+
+	},
+
+	setDynamic: function ( value ) {
+
+		this.dynamic = value;
+
+		return this;
+
+	},
+
+	copy: function ( source ) {
+
+		this.array = new source.array.constructor( source.array );
+		this.itemSize = source.itemSize;
+		this.count = source.count;
+		this.normalized = source.normalized;
+
+		this.dynamic = source.dynamic;
+
+		return this;
+
+	},
+
+	copyAt: function ( index1, attribute, index2 ) {
+
+		index1 *= this.itemSize;
+		index2 *= attribute.itemSize;
+
+		for ( var i = 0, l = this.itemSize; i < l; i ++ ) {
+
+			this.array[ index1 + i ] = attribute.array[ index2 + i ];
+
+		}
+
+		return this;
+
+	},
+
+	copyArray: function ( array ) {
+
+		this.array.set( array );
+
+		return this;
+
+	},
+
+	copyColorsArray: function ( colors ) {
+
+		var array = this.array, offset = 0;
+
+		for ( var i = 0, l = colors.length; i < l; i ++ ) {
+
+			var color = colors[ i ];
+
+			if ( color === undefined ) {
+
+				console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
+				color = new Color();
+
+			}
+
+			array[ offset ++ ] = color.r;
+			array[ offset ++ ] = color.g;
+			array[ offset ++ ] = color.b;
+
+		}
+
+		return this;
+
+	},
+
+	copyIndicesArray: function ( indices ) {
+
+		var array = this.array, offset = 0;
+
+		for ( var i = 0, l = indices.length; i < l; i ++ ) {
+
+			var index = indices[ i ];
+
+			array[ offset ++ ] = index.a;
+			array[ offset ++ ] = index.b;
+			array[ offset ++ ] = index.c;
+
+		}
+
+		return this;
+
+	},
+
+	copyVector2sArray: function ( vectors ) {
+
+		var array = this.array, offset = 0;
+
+		for ( var i = 0, l = vectors.length; i < l; i ++ ) {
+
+			var vector = vectors[ i ];
+
+			if ( vector === undefined ) {
+
+				console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
+				vector = new Vector2();
+
+			}
+
+			array[ offset ++ ] = vector.x;
+			array[ offset ++ ] = vector.y;
+
+		}
+
+		return this;
+
+	},
+
+	copyVector3sArray: function ( vectors ) {
+
+		var array = this.array, offset = 0;
+
+		for ( var i = 0, l = vectors.length; i < l; i ++ ) {
+
+			var vector = vectors[ i ];
+
+			if ( vector === undefined ) {
+
+				console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
+				vector = new Vector3();
+
+			}
+
+			array[ offset ++ ] = vector.x;
+			array[ offset ++ ] = vector.y;
+			array[ offset ++ ] = vector.z;
+
+		}
+
+		return this;
+
+	},
+
+	copyVector4sArray: function ( vectors ) {
+
+		var array = this.array, offset = 0;
+
+		for ( var i = 0, l = vectors.length; i < l; i ++ ) {
+
+			var vector = vectors[ i ];
+
+			if ( vector === undefined ) {
+
+				console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
+				vector = new Vector4();
+
+			}
+
+			array[ offset ++ ] = vector.x;
+			array[ offset ++ ] = vector.y;
+			array[ offset ++ ] = vector.z;
+			array[ offset ++ ] = vector.w;
+
+		}
+
+		return this;
+
+	},
+
+	set: function ( value, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		this.array.set( value, offset );
+
+		return this;
+
+	},
+
+	getX: function ( index ) {
+
+		return this.array[ index * this.itemSize ];
+
+	},
+
+	setX: function ( index, x ) {
+
+		this.array[ index * this.itemSize ] = x;
+
+		return this;
+
+	},
+
+	getY: function ( index ) {
+
+		return this.array[ index * this.itemSize + 1 ];
+
+	},
+
+	setY: function ( index, y ) {
+
+		this.array[ index * this.itemSize + 1 ] = y;
+
+		return this;
+
+	},
+
+	getZ: function ( index ) {
+
+		return this.array[ index * this.itemSize + 2 ];
+
+	},
+
+	setZ: function ( index, z ) {
+
+		this.array[ index * this.itemSize + 2 ] = z;
+
+		return this;
+
+	},
+
+	getW: function ( index ) {
+
+		return this.array[ index * this.itemSize + 3 ];
+
+	},
+
+	setW: function ( index, w ) {
+
+		this.array[ index * this.itemSize + 3 ] = w;
+
+		return this;
+
+	},
+
+	setXY: function ( index, x, y ) {
+
+		index *= this.itemSize;
+
+		this.array[ index + 0 ] = x;
+		this.array[ index + 1 ] = y;
+
+		return this;
+
+	},
+
+	setXYZ: function ( index, x, y, z ) {
+
+		index *= this.itemSize;
+
+		this.array[ index + 0 ] = x;
+		this.array[ index + 1 ] = y;
+		this.array[ index + 2 ] = z;
+
+		return this;
+
+	},
+
+	setXYZW: function ( index, x, y, z, w ) {
+
+		index *= this.itemSize;
+
+		this.array[ index + 0 ] = x;
+		this.array[ index + 1 ] = y;
+		this.array[ index + 2 ] = z;
+		this.array[ index + 3 ] = w;
+
+		return this;
+
+	},
+
+	onUpload: function ( callback ) {
+
+		this.onUploadCallback = callback;
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor( this.array, this.itemSize ).copy( this );
+
+	}
+
+} );
+
+//
+
+function Int8BufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Int8Array( array ), itemSize, normalized );
+
+}
+
+Int8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;
+
+
+function Uint8BufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized );
+
+}
+
+Uint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;
+
+
+function Uint8ClampedBufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized );
+
+}
+
+Uint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;
+
+
+function Int16BufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Int16Array( array ), itemSize, normalized );
+
+}
+
+Int16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;
+
+
+function Uint16BufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized );
+
+}
+
+Uint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;
+
+
+function Int32BufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Int32Array( array ), itemSize, normalized );
+
+}
+
+Int32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;
+
+
+function Uint32BufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized );
+
+}
+
+Uint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;
+
+
+function Float32BufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Float32Array( array ), itemSize, normalized );
+
+}
+
+Float32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;
+
+
+function Float64BufferAttribute( array, itemSize, normalized ) {
+
+	BufferAttribute.call( this, new Float64Array( array ), itemSize, normalized );
+
+}
+
+Float64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
+Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function DirectGeometry() {
+
+	this.indices = [];
+	this.vertices = [];
+	this.normals = [];
+	this.colors = [];
+	this.uvs = [];
+	this.uvs2 = [];
+
+	this.groups = [];
+
+	this.morphTargets = {};
+
+	this.skinWeights = [];
+	this.skinIndices = [];
+
+	// this.lineDistances = [];
+
+	this.boundingBox = null;
+	this.boundingSphere = null;
+
+	// update flags
+
+	this.verticesNeedUpdate = false;
+	this.normalsNeedUpdate = false;
+	this.colorsNeedUpdate = false;
+	this.uvsNeedUpdate = false;
+	this.groupsNeedUpdate = false;
+
+}
+
+Object.assign( DirectGeometry.prototype, {
+
+	computeGroups: function ( geometry ) {
+
+		var group;
+		var groups = [];
+		var materialIndex = undefined;
+
+		var faces = geometry.faces;
+
+		for ( var i = 0; i < faces.length; i ++ ) {
+
+			var face = faces[ i ];
+
+			// materials
+
+			if ( face.materialIndex !== materialIndex ) {
+
+				materialIndex = face.materialIndex;
+
+				if ( group !== undefined ) {
+
+					group.count = ( i * 3 ) - group.start;
+					groups.push( group );
+
+				}
+
+				group = {
+					start: i * 3,
+					materialIndex: materialIndex
+				};
+
+			}
+
+		}
+
+		if ( group !== undefined ) {
+
+			group.count = ( i * 3 ) - group.start;
+			groups.push( group );
+
+		}
+
+		this.groups = groups;
+
+	},
+
+	fromGeometry: function ( geometry ) {
+
+		var faces = geometry.faces;
+		var vertices = geometry.vertices;
+		var faceVertexUvs = geometry.faceVertexUvs;
+
+		var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;
+		var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;
+
+		// morphs
+
+		var morphTargets = geometry.morphTargets;
+		var morphTargetsLength = morphTargets.length;
+
+		var morphTargetsPosition;
+
+		if ( morphTargetsLength > 0 ) {
+
+			morphTargetsPosition = [];
+
+			for ( var i = 0; i < morphTargetsLength; i ++ ) {
+
+				morphTargetsPosition[ i ] = [];
+
+			}
+
+			this.morphTargets.position = morphTargetsPosition;
+
+		}
+
+		var morphNormals = geometry.morphNormals;
+		var morphNormalsLength = morphNormals.length;
+
+		var morphTargetsNormal;
+
+		if ( morphNormalsLength > 0 ) {
+
+			morphTargetsNormal = [];
+
+			for ( var i = 0; i < morphNormalsLength; i ++ ) {
+
+				morphTargetsNormal[ i ] = [];
+
+			}
+
+			this.morphTargets.normal = morphTargetsNormal;
+
+		}
+
+		// skins
+
+		var skinIndices = geometry.skinIndices;
+		var skinWeights = geometry.skinWeights;
+
+		var hasSkinIndices = skinIndices.length === vertices.length;
+		var hasSkinWeights = skinWeights.length === vertices.length;
+
+		//
+
+		for ( var i = 0; i < faces.length; i ++ ) {
+
+			var face = faces[ i ];
+
+			this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );
+
+			var vertexNormals = face.vertexNormals;
+
+			if ( vertexNormals.length === 3 ) {
+
+				this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );
+
+			} else {
+
+				var normal = face.normal;
+
+				this.normals.push( normal, normal, normal );
+
+			}
+
+			var vertexColors = face.vertexColors;
+
+			if ( vertexColors.length === 3 ) {
+
+				this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );
+
+			} else {
+
+				var color = face.color;
+
+				this.colors.push( color, color, color );
+
+			}
+
+			if ( hasFaceVertexUv === true ) {
+
+				var vertexUvs = faceVertexUvs[ 0 ][ i ];
+
+				if ( vertexUvs !== undefined ) {
+
+					this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
+
+				} else {
+
+					console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );
+
+					this.uvs.push( new Vector2(), new Vector2(), new Vector2() );
+
+				}
+
+			}
+
+			if ( hasFaceVertexUv2 === true ) {
+
+				var vertexUvs = faceVertexUvs[ 1 ][ i ];
+
+				if ( vertexUvs !== undefined ) {
+
+					this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
+
+				} else {
+
+					console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );
+
+					this.uvs2.push( new Vector2(), new Vector2(), new Vector2() );
+
+				}
+
+			}
+
+			// morphs
+
+			for ( var j = 0; j < morphTargetsLength; j ++ ) {
+
+				var morphTarget = morphTargets[ j ].vertices;
+
+				morphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );
+
+			}
+
+			for ( var j = 0; j < morphNormalsLength; j ++ ) {
+
+				var morphNormal = morphNormals[ j ].vertexNormals[ i ];
+
+				morphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c );
+
+			}
+
+			// skins
+
+			if ( hasSkinIndices ) {
+
+				this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );
+
+			}
+
+			if ( hasSkinWeights ) {
+
+				this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );
+
+			}
+
+		}
+
+		this.computeGroups( geometry );
+
+		this.verticesNeedUpdate = geometry.verticesNeedUpdate;
+		this.normalsNeedUpdate = geometry.normalsNeedUpdate;
+		this.colorsNeedUpdate = geometry.colorsNeedUpdate;
+		this.uvsNeedUpdate = geometry.uvsNeedUpdate;
+		this.groupsNeedUpdate = geometry.groupsNeedUpdate;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function arrayMax( array ) {
+
+	if ( array.length === 0 ) return - Infinity;
+
+	var max = array[ 0 ];
+
+	for ( var i = 1, l = array.length; i < l; ++ i ) {
+
+		if ( array[ i ] > max ) max = array[ i ];
+
+	}
+
+	return max;
+
+}
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+var bufferGeometryId = 1; // BufferGeometry uses odd numbers as Id
+
+function BufferGeometry() {
+
+	Object.defineProperty( this, 'id', { value: bufferGeometryId += 2 } );
+
+	this.uuid = _Math.generateUUID();
+
+	this.name = '';
+	this.type = 'BufferGeometry';
+
+	this.index = null;
+	this.attributes = {};
+
+	this.morphAttributes = {};
+
+	this.groups = [];
+
+	this.boundingBox = null;
+	this.boundingSphere = null;
+
+	this.drawRange = { start: 0, count: Infinity };
+
+}
+
+Object.assign( BufferGeometry.prototype, EventDispatcher.prototype, {
+
+	isBufferGeometry: true,
+
+	getIndex: function () {
+
+		return this.index;
+
+	},
+
+	setIndex: function ( index ) {
+
+		if ( Array.isArray( index ) ) {
+
+			this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );
+
+		} else {
+
+			this.index = index;
+
+		}
+
+	},
+
+	addAttribute: function ( name, attribute ) {
+
+		if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {
+
+			console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );
+
+			this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );
+
+			return;
+
+		}
+
+		if ( name === 'index' ) {
+
+			console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );
+			this.setIndex( attribute );
+
+			return;
+
+		}
+
+		this.attributes[ name ] = attribute;
+
+		return this;
+
+	},
+
+	getAttribute: function ( name ) {
+
+		return this.attributes[ name ];
+
+	},
+
+	removeAttribute: function ( name ) {
+
+		delete this.attributes[ name ];
+
+		return this;
+
+	},
+
+	addGroup: function ( start, count, materialIndex ) {
+
+		this.groups.push( {
+
+			start: start,
+			count: count,
+			materialIndex: materialIndex !== undefined ? materialIndex : 0
+
+		} );
+
+	},
+
+	clearGroups: function () {
+
+		this.groups = [];
+
+	},
+
+	setDrawRange: function ( start, count ) {
+
+		this.drawRange.start = start;
+		this.drawRange.count = count;
+
+	},
+
+	applyMatrix: function ( matrix ) {
+
+		var position = this.attributes.position;
+
+		if ( position !== undefined ) {
+
+			matrix.applyToBufferAttribute( position );
+			position.needsUpdate = true;
+
+		}
+
+		var normal = this.attributes.normal;
+
+		if ( normal !== undefined ) {
+
+			var normalMatrix = new Matrix3().getNormalMatrix( matrix );
+
+			normalMatrix.applyToBufferAttribute( normal );
+			normal.needsUpdate = true;
+
+		}
+
+		if ( this.boundingBox !== null ) {
+
+			this.computeBoundingBox();
+
+		}
+
+		if ( this.boundingSphere !== null ) {
+
+			this.computeBoundingSphere();
+
+		}
+
+		return this;
+
+	},
+
+	rotateX: function () {
+
+		// rotate geometry around world x-axis
+
+		var m1 = new Matrix4();
+
+		return function rotateX( angle ) {
+
+			m1.makeRotationX( angle );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	rotateY: function () {
+
+		// rotate geometry around world y-axis
+
+		var m1 = new Matrix4();
+
+		return function rotateY( angle ) {
+
+			m1.makeRotationY( angle );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	rotateZ: function () {
+
+		// rotate geometry around world z-axis
+
+		var m1 = new Matrix4();
+
+		return function rotateZ( angle ) {
+
+			m1.makeRotationZ( angle );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	translate: function () {
+
+		// translate geometry
+
+		var m1 = new Matrix4();
+
+		return function translate( x, y, z ) {
+
+			m1.makeTranslation( x, y, z );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	scale: function () {
+
+		// scale geometry
+
+		var m1 = new Matrix4();
+
+		return function scale( x, y, z ) {
+
+			m1.makeScale( x, y, z );
+
+			this.applyMatrix( m1 );
+
+			return this;
+
+		};
+
+	}(),
+
+	lookAt: function () {
+
+		var obj = new Object3D();
+
+		return function lookAt( vector ) {
+
+			obj.lookAt( vector );
+
+			obj.updateMatrix();
+
+			this.applyMatrix( obj.matrix );
+
+		};
+
+	}(),
+
+	center: function () {
+
+		this.computeBoundingBox();
+
+		var offset = this.boundingBox.getCenter().negate();
+
+		this.translate( offset.x, offset.y, offset.z );
+
+		return offset;
+
+	},
+
+	setFromObject: function ( object ) {
+
+		// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );
+
+		var geometry = object.geometry;
+
+		if ( object.isPoints || object.isLine ) {
+
+			var positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 );
+			var colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 );
+
+			this.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );
+			this.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );
+
+			if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {
+
+				var lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 );
+
+				this.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );
+
+			}
+
+			if ( geometry.boundingSphere !== null ) {
+
+				this.boundingSphere = geometry.boundingSphere.clone();
+
+			}
+
+			if ( geometry.boundingBox !== null ) {
+
+				this.boundingBox = geometry.boundingBox.clone();
+
+			}
+
+		} else if ( object.isMesh ) {
+
+			if ( geometry && geometry.isGeometry ) {
+
+				this.fromGeometry( geometry );
+
+			}
+
+		}
+
+		return this;
+
+	},
+
+	setFromPoints: function ( points ) {
+
+		var position = [];
+
+		for ( var i = 0, l = points.length; i < l; i ++ ) {
+
+			var point = points[ i ];
+			position.push( point.x, point.y, point.z || 0 );
+
+		}
+
+		this.addAttribute( 'position', new Float32BufferAttribute( position, 3 ) );
+
+		return this;
+
+	},
+
+	updateFromObject: function ( object ) {
+
+		var geometry = object.geometry;
+
+		if ( object.isMesh ) {
+
+			var direct = geometry.__directGeometry;
+
+			if ( geometry.elementsNeedUpdate === true ) {
+
+				direct = undefined;
+				geometry.elementsNeedUpdate = false;
+
+			}
+
+			if ( direct === undefined ) {
+
+				return this.fromGeometry( geometry );
+
+			}
+
+			direct.verticesNeedUpdate = geometry.verticesNeedUpdate;
+			direct.normalsNeedUpdate = geometry.normalsNeedUpdate;
+			direct.colorsNeedUpdate = geometry.colorsNeedUpdate;
+			direct.uvsNeedUpdate = geometry.uvsNeedUpdate;
+			direct.groupsNeedUpdate = geometry.groupsNeedUpdate;
+
+			geometry.verticesNeedUpdate = false;
+			geometry.normalsNeedUpdate = false;
+			geometry.colorsNeedUpdate = false;
+			geometry.uvsNeedUpdate = false;
+			geometry.groupsNeedUpdate = false;
+
+			geometry = direct;
+
+		}
+
+		var attribute;
+
+		if ( geometry.verticesNeedUpdate === true ) {
+
+			attribute = this.attributes.position;
+
+			if ( attribute !== undefined ) {
+
+				attribute.copyVector3sArray( geometry.vertices );
+				attribute.needsUpdate = true;
+
+			}
+
+			geometry.verticesNeedUpdate = false;
+
+		}
+
+		if ( geometry.normalsNeedUpdate === true ) {
+
+			attribute = this.attributes.normal;
+
+			if ( attribute !== undefined ) {
+
+				attribute.copyVector3sArray( geometry.normals );
+				attribute.needsUpdate = true;
+
+			}
+
+			geometry.normalsNeedUpdate = false;
+
+		}
+
+		if ( geometry.colorsNeedUpdate === true ) {
+
+			attribute = this.attributes.color;
+
+			if ( attribute !== undefined ) {
+
+				attribute.copyColorsArray( geometry.colors );
+				attribute.needsUpdate = true;
+
+			}
+
+			geometry.colorsNeedUpdate = false;
+
+		}
+
+		if ( geometry.uvsNeedUpdate ) {
+
+			attribute = this.attributes.uv;
+
+			if ( attribute !== undefined ) {
+
+				attribute.copyVector2sArray( geometry.uvs );
+				attribute.needsUpdate = true;
+
+			}
+
+			geometry.uvsNeedUpdate = false;
+
+		}
+
+		if ( geometry.lineDistancesNeedUpdate ) {
+
+			attribute = this.attributes.lineDistance;
+
+			if ( attribute !== undefined ) {
+
+				attribute.copyArray( geometry.lineDistances );
+				attribute.needsUpdate = true;
+
+			}
+
+			geometry.lineDistancesNeedUpdate = false;
+
+		}
+
+		if ( geometry.groupsNeedUpdate ) {
+
+			geometry.computeGroups( object.geometry );
+			this.groups = geometry.groups;
+
+			geometry.groupsNeedUpdate = false;
+
+		}
+
+		return this;
+
+	},
+
+	fromGeometry: function ( geometry ) {
+
+		geometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );
+
+		return this.fromDirectGeometry( geometry.__directGeometry );
+
+	},
+
+	fromDirectGeometry: function ( geometry ) {
+
+		var positions = new Float32Array( geometry.vertices.length * 3 );
+		this.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );
+
+		if ( geometry.normals.length > 0 ) {
+
+			var normals = new Float32Array( geometry.normals.length * 3 );
+			this.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );
+
+		}
+
+		if ( geometry.colors.length > 0 ) {
+
+			var colors = new Float32Array( geometry.colors.length * 3 );
+			this.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );
+
+		}
+
+		if ( geometry.uvs.length > 0 ) {
+
+			var uvs = new Float32Array( geometry.uvs.length * 2 );
+			this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );
+
+		}
+
+		if ( geometry.uvs2.length > 0 ) {
+
+			var uvs2 = new Float32Array( geometry.uvs2.length * 2 );
+			this.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );
+
+		}
+
+		if ( geometry.indices.length > 0 ) {
+
+			var TypeArray = arrayMax( geometry.indices ) > 65535 ? Uint32Array : Uint16Array;
+			var indices = new TypeArray( geometry.indices.length * 3 );
+			this.setIndex( new BufferAttribute( indices, 1 ).copyIndicesArray( geometry.indices ) );
+
+		}
+
+		// groups
+
+		this.groups = geometry.groups;
+
+		// morphs
+
+		for ( var name in geometry.morphTargets ) {
+
+			var array = [];
+			var morphTargets = geometry.morphTargets[ name ];
+
+			for ( var i = 0, l = morphTargets.length; i < l; i ++ ) {
+
+				var morphTarget = morphTargets[ i ];
+
+				var attribute = new Float32BufferAttribute( morphTarget.length * 3, 3 );
+
+				array.push( attribute.copyVector3sArray( morphTarget ) );
+
+			}
+
+			this.morphAttributes[ name ] = array;
+
+		}
+
+		// skinning
+
+		if ( geometry.skinIndices.length > 0 ) {
+
+			var skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 );
+			this.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );
+
+		}
+
+		if ( geometry.skinWeights.length > 0 ) {
+
+			var skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 );
+			this.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );
+
+		}
+
+		//
+
+		if ( geometry.boundingSphere !== null ) {
+
+			this.boundingSphere = geometry.boundingSphere.clone();
+
+		}
+
+		if ( geometry.boundingBox !== null ) {
+
+			this.boundingBox = geometry.boundingBox.clone();
+
+		}
+
+		return this;
+
+	},
+
+	computeBoundingBox: function () {
+
+		if ( this.boundingBox === null ) {
+
+			this.boundingBox = new Box3();
+
+		}
+
+		var position = this.attributes.position;
+
+		if ( position !== undefined ) {
+
+			this.boundingBox.setFromBufferAttribute( position );
+
+		} else {
+
+			this.boundingBox.makeEmpty();
+
+		}
+
+		if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {
+
+			console.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );
+
+		}
+
+	},
+
+	computeBoundingSphere: function () {
+
+		var box = new Box3();
+		var vector = new Vector3();
+
+		return function computeBoundingSphere() {
+
+			if ( this.boundingSphere === null ) {
+
+				this.boundingSphere = new Sphere();
+
+			}
+
+			var position = this.attributes.position;
+
+			if ( position ) {
+
+				var center = this.boundingSphere.center;
+
+				box.setFromBufferAttribute( position );
+				box.getCenter( center );
+
+				// hoping to find a boundingSphere with a radius smaller than the
+				// boundingSphere of the boundingBox: sqrt(3) smaller in the best case
+
+				var maxRadiusSq = 0;
+
+				for ( var i = 0, il = position.count; i < il; i ++ ) {
+
+					vector.x = position.getX( i );
+					vector.y = position.getY( i );
+					vector.z = position.getZ( i );
+					maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );
+
+				}
+
+				this.boundingSphere.radius = Math.sqrt( maxRadiusSq );
+
+				if ( isNaN( this.boundingSphere.radius ) ) {
+
+					console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );
+
+				}
+
+			}
+
+		};
+
+	}(),
+
+	computeFaceNormals: function () {
+
+		// backwards compatibility
+
+	},
+
+	computeVertexNormals: function () {
+
+		var index = this.index;
+		var attributes = this.attributes;
+		var groups = this.groups;
+
+		if ( attributes.position ) {
+
+			var positions = attributes.position.array;
+
+			if ( attributes.normal === undefined ) {
+
+				this.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );
+
+			} else {
+
+				// reset existing normals to zero
+
+				var array = attributes.normal.array;
+
+				for ( var i = 0, il = array.length; i < il; i ++ ) {
+
+					array[ i ] = 0;
+
+				}
+
+			}
+
+			var normals = attributes.normal.array;
+
+			var vA, vB, vC;
+			var pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
+			var cb = new Vector3(), ab = new Vector3();
+
+			// indexed elements
+
+			if ( index ) {
+
+				var indices = index.array;
+
+				if ( groups.length === 0 ) {
+
+					this.addGroup( 0, indices.length );
+
+				}
+
+				for ( var j = 0, jl = groups.length; j < jl; ++ j ) {
+
+					var group = groups[ j ];
+
+					var start = group.start;
+					var count = group.count;
+
+					for ( var i = start, il = start + count; i < il; i += 3 ) {
+
+						vA = indices[ i + 0 ] * 3;
+						vB = indices[ i + 1 ] * 3;
+						vC = indices[ i + 2 ] * 3;
+
+						pA.fromArray( positions, vA );
+						pB.fromArray( positions, vB );
+						pC.fromArray( positions, vC );
+
+						cb.subVectors( pC, pB );
+						ab.subVectors( pA, pB );
+						cb.cross( ab );
+
+						normals[ vA ] += cb.x;
+						normals[ vA + 1 ] += cb.y;
+						normals[ vA + 2 ] += cb.z;
+
+						normals[ vB ] += cb.x;
+						normals[ vB + 1 ] += cb.y;
+						normals[ vB + 2 ] += cb.z;
+
+						normals[ vC ] += cb.x;
+						normals[ vC + 1 ] += cb.y;
+						normals[ vC + 2 ] += cb.z;
+
+					}
+
+				}
+
+			} else {
+
+				// non-indexed elements (unconnected triangle soup)
+
+				for ( var i = 0, il = positions.length; i < il; i += 9 ) {
+
+					pA.fromArray( positions, i );
+					pB.fromArray( positions, i + 3 );
+					pC.fromArray( positions, i + 6 );
+
+					cb.subVectors( pC, pB );
+					ab.subVectors( pA, pB );
+					cb.cross( ab );
+
+					normals[ i ] = cb.x;
+					normals[ i + 1 ] = cb.y;
+					normals[ i + 2 ] = cb.z;
+
+					normals[ i + 3 ] = cb.x;
+					normals[ i + 4 ] = cb.y;
+					normals[ i + 5 ] = cb.z;
+
+					normals[ i + 6 ] = cb.x;
+					normals[ i + 7 ] = cb.y;
+					normals[ i + 8 ] = cb.z;
+
+				}
+
+			}
+
+			this.normalizeNormals();
+
+			attributes.normal.needsUpdate = true;
+
+		}
+
+	},
+
+	merge: function ( geometry, offset ) {
+
+		if ( ! ( geometry && geometry.isBufferGeometry ) ) {
+
+			console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
+			return;
+
+		}
+
+		if ( offset === undefined ) offset = 0;
+
+		var attributes = this.attributes;
+
+		for ( var key in attributes ) {
+
+			if ( geometry.attributes[ key ] === undefined ) continue;
+
+			var attribute1 = attributes[ key ];
+			var attributeArray1 = attribute1.array;
+
+			var attribute2 = geometry.attributes[ key ];
+			var attributeArray2 = attribute2.array;
+
+			var attributeSize = attribute2.itemSize;
+
+			for ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) {
+
+				attributeArray1[ j ] = attributeArray2[ i ];
+
+			}
+
+		}
+
+		return this;
+
+	},
+
+	normalizeNormals: function () {
+
+		var vector = new Vector3();
+
+		return function normalizeNormals() {
+
+			var normals = this.attributes.normal;
+
+			for ( var i = 0, il = normals.count; i < il; i ++ ) {
+
+				vector.x = normals.getX( i );
+				vector.y = normals.getY( i );
+				vector.z = normals.getZ( i );
+
+				vector.normalize();
+
+				normals.setXYZ( i, vector.x, vector.y, vector.z );
+
+			}
+
+		};
+
+	}(),
+
+	toNonIndexed: function () {
+
+		if ( this.index === null ) {
+
+			console.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );
+			return this;
+
+		}
+
+		var geometry2 = new BufferGeometry();
+
+		var indices = this.index.array;
+		var attributes = this.attributes;
+
+		for ( var name in attributes ) {
+
+			var attribute = attributes[ name ];
+
+			var array = attribute.array;
+			var itemSize = attribute.itemSize;
+
+			var array2 = new array.constructor( indices.length * itemSize );
+
+			var index = 0, index2 = 0;
+
+			for ( var i = 0, l = indices.length; i < l; i ++ ) {
+
+				index = indices[ i ] * itemSize;
+
+				for ( var j = 0; j < itemSize; j ++ ) {
+
+					array2[ index2 ++ ] = array[ index ++ ];
+
+				}
+
+			}
+
+			geometry2.addAttribute( name, new BufferAttribute( array2, itemSize ) );
+
+		}
+
+		return geometry2;
+
+	},
+
+	toJSON: function () {
+
+		var data = {
+			metadata: {
+				version: 4.5,
+				type: 'BufferGeometry',
+				generator: 'BufferGeometry.toJSON'
+			}
+		};
+
+		// standard BufferGeometry serialization
+
+		data.uuid = this.uuid;
+		data.type = this.type;
+		if ( this.name !== '' ) data.name = this.name;
+
+		if ( this.parameters !== undefined ) {
+
+			var parameters = this.parameters;
+
+			for ( var key in parameters ) {
+
+				if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];
+
+			}
+
+			return data;
+
+		}
+
+		data.data = { attributes: {} };
+
+		var index = this.index;
+
+		if ( index !== null ) {
+
+			var array = Array.prototype.slice.call( index.array );
+
+			data.data.index = {
+				type: index.array.constructor.name,
+				array: array
+			};
+
+		}
+
+		var attributes = this.attributes;
+
+		for ( var key in attributes ) {
+
+			var attribute = attributes[ key ];
+
+			var array = Array.prototype.slice.call( attribute.array );
+
+			data.data.attributes[ key ] = {
+				itemSize: attribute.itemSize,
+				type: attribute.array.constructor.name,
+				array: array,
+				normalized: attribute.normalized
+			};
+
+		}
+
+		var groups = this.groups;
+
+		if ( groups.length > 0 ) {
+
+			data.data.groups = JSON.parse( JSON.stringify( groups ) );
+
+		}
+
+		var boundingSphere = this.boundingSphere;
+
+		if ( boundingSphere !== null ) {
+
+			data.data.boundingSphere = {
+				center: boundingSphere.center.toArray(),
+				radius: boundingSphere.radius
+			};
+
+		}
+
+		return data;
+
+	},
+
+	clone: function () {
+
+		/*
+		 // Handle primitives
+
+		 var parameters = this.parameters;
+
+		 if ( parameters !== undefined ) {
+
+		 var values = [];
+
+		 for ( var key in parameters ) {
+
+		 values.push( parameters[ key ] );
+
+		 }
+
+		 var geometry = Object.create( this.constructor.prototype );
+		 this.constructor.apply( geometry, values );
+		 return geometry;
+
+		 }
+
+		 return new this.constructor().copy( this );
+		 */
+
+		return new BufferGeometry().copy( this );
+
+	},
+
+	copy: function ( source ) {
+
+		var name, i, l;
+
+		// reset
+
+		this.index = null;
+		this.attributes = {};
+		this.morphAttributes = {};
+		this.groups = [];
+		this.boundingBox = null;
+		this.boundingSphere = null;
+
+		// name
+
+		this.name = source.name;
+
+		// index
+
+		var index = source.index;
+
+		if ( index !== null ) {
+
+			this.setIndex( index.clone() );
+
+		}
+
+		// attributes
+
+		var attributes = source.attributes;
+
+		for ( name in attributes ) {
+
+			var attribute = attributes[ name ];
+			this.addAttribute( name, attribute.clone() );
+
+		}
+
+		// morph attributes
+
+		var morphAttributes = source.morphAttributes;
+
+		for ( name in morphAttributes ) {
+
+			var array = [];
+			var morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes
+
+			for ( i = 0, l = morphAttribute.length; i < l; i ++ ) {
+
+				array.push( morphAttribute[ i ].clone() );
+
+			}
+
+			this.morphAttributes[ name ] = array;
+
+		}
+
+		// groups
+
+		var groups = source.groups;
+
+		for ( i = 0, l = groups.length; i < l; i ++ ) {
+
+			var group = groups[ i ];
+			this.addGroup( group.start, group.count, group.materialIndex );
+
+		}
+
+		// bounding box
+
+		var boundingBox = source.boundingBox;
+
+		if ( boundingBox !== null ) {
+
+			this.boundingBox = boundingBox.clone();
+
+		}
+
+		// bounding sphere
+
+		var boundingSphere = source.boundingSphere;
+
+		if ( boundingSphere !== null ) {
+
+			this.boundingSphere = boundingSphere.clone();
+
+		}
+
+		// draw range
+
+		this.drawRange.start = source.drawRange.start;
+		this.drawRange.count = source.drawRange.count;
+
+		return this;
+
+	},
+
+	dispose: function () {
+
+		this.dispatchEvent( { type: 'dispose' } );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// BoxGeometry
+
+function BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {
+
+	Geometry.call( this );
+
+	this.type = 'BoxGeometry';
+
+	this.parameters = {
+		width: width,
+		height: height,
+		depth: depth,
+		widthSegments: widthSegments,
+		heightSegments: heightSegments,
+		depthSegments: depthSegments
+	};
+
+	this.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );
+	this.mergeVertices();
+
+}
+
+BoxGeometry.prototype = Object.create( Geometry.prototype );
+BoxGeometry.prototype.constructor = BoxGeometry;
+
+// BoxBufferGeometry
+
+function BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'BoxBufferGeometry';
+
+	this.parameters = {
+		width: width,
+		height: height,
+		depth: depth,
+		widthSegments: widthSegments,
+		heightSegments: heightSegments,
+		depthSegments: depthSegments
+	};
+
+	var scope = this;
+
+	width = width || 1;
+	height = height || 1;
+	depth = depth || 1;
+
+	// segments
+
+	widthSegments = Math.floor( widthSegments ) || 1;
+	heightSegments = Math.floor( heightSegments ) || 1;
+	depthSegments = Math.floor( depthSegments ) || 1;
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// helper variables
+
+	var numberOfVertices = 0;
+	var groupStart = 0;
+
+	// build each side of the box geometry
+
+	buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px
+	buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx
+	buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py
+	buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny
+	buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz
+	buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {
+
+		var segmentWidth = width / gridX;
+		var segmentHeight = height / gridY;
+
+		var widthHalf = width / 2;
+		var heightHalf = height / 2;
+		var depthHalf = depth / 2;
+
+		var gridX1 = gridX + 1;
+		var gridY1 = gridY + 1;
+
+		var vertexCounter = 0;
+		var groupCount = 0;
+
+		var ix, iy;
+
+		var vector = new Vector3();
+
+		// generate vertices, normals and uvs
+
+		for ( iy = 0; iy < gridY1; iy ++ ) {
+
+			var y = iy * segmentHeight - heightHalf;
+
+			for ( ix = 0; ix < gridX1; ix ++ ) {
+
+				var x = ix * segmentWidth - widthHalf;
+
+				// set values to correct vector component
+
+				vector[ u ] = x * udir;
+				vector[ v ] = y * vdir;
+				vector[ w ] = depthHalf;
+
+				// now apply vector to vertex buffer
+
+				vertices.push( vector.x, vector.y, vector.z );
+
+				// set values to correct vector component
+
+				vector[ u ] = 0;
+				vector[ v ] = 0;
+				vector[ w ] = depth > 0 ? 1 : - 1;
+
+				// now apply vector to normal buffer
+
+				normals.push( vector.x, vector.y, vector.z );
+
+				// uvs
+
+				uvs.push( ix / gridX );
+				uvs.push( 1 - ( iy / gridY ) );
+
+				// counters
+
+				vertexCounter += 1;
+
+			}
+
+		}
+
+		// indices
+
+		// 1. you need three indices to draw a single face
+		// 2. a single segment consists of two faces
+		// 3. so we need to generate six (2*3) indices per segment
+
+		for ( iy = 0; iy < gridY; iy ++ ) {
+
+			for ( ix = 0; ix < gridX; ix ++ ) {
+
+				var a = numberOfVertices + ix + gridX1 * iy;
+				var b = numberOfVertices + ix + gridX1 * ( iy + 1 );
+				var c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );
+				var d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;
+
+				// faces
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+				// increase counter
+
+				groupCount += 6;
+
+			}
+
+		}
+
+		// add a group to the geometry. this will ensure multi material support
+
+		scope.addGroup( groupStart, groupCount, materialIndex );
+
+		// calculate new start value for groups
+
+		groupStart += groupCount;
+
+		// update total number of vertices
+
+		numberOfVertices += vertexCounter;
+
+	}
+
+}
+
+BoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+BoxBufferGeometry.prototype.constructor = BoxBufferGeometry;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// PlaneGeometry
+
+function PlaneGeometry( width, height, widthSegments, heightSegments ) {
+
+	Geometry.call( this );
+
+	this.type = 'PlaneGeometry';
+
+	this.parameters = {
+		width: width,
+		height: height,
+		widthSegments: widthSegments,
+		heightSegments: heightSegments
+	};
+
+	this.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );
+	this.mergeVertices();
+
+}
+
+PlaneGeometry.prototype = Object.create( Geometry.prototype );
+PlaneGeometry.prototype.constructor = PlaneGeometry;
+
+// PlaneBufferGeometry
+
+function PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'PlaneBufferGeometry';
+
+	this.parameters = {
+		width: width,
+		height: height,
+		widthSegments: widthSegments,
+		heightSegments: heightSegments
+	};
+
+	width = width || 1;
+	height = height || 1;
+
+	var width_half = width / 2;
+	var height_half = height / 2;
+
+	var gridX = Math.floor( widthSegments ) || 1;
+	var gridY = Math.floor( heightSegments ) || 1;
+
+	var gridX1 = gridX + 1;
+	var gridY1 = gridY + 1;
+
+	var segment_width = width / gridX;
+	var segment_height = height / gridY;
+
+	var ix, iy;
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// generate vertices, normals and uvs
+
+	for ( iy = 0; iy < gridY1; iy ++ ) {
+
+		var y = iy * segment_height - height_half;
+
+		for ( ix = 0; ix < gridX1; ix ++ ) {
+
+			var x = ix * segment_width - width_half;
+
+			vertices.push( x, - y, 0 );
+
+			normals.push( 0, 0, 1 );
+
+			uvs.push( ix / gridX );
+			uvs.push( 1 - ( iy / gridY ) );
+
+		}
+
+	}
+
+	// indices
+
+	for ( iy = 0; iy < gridY; iy ++ ) {
+
+		for ( ix = 0; ix < gridX; ix ++ ) {
+
+			var a = ix + gridX1 * iy;
+			var b = ix + gridX1 * ( iy + 1 );
+			var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
+			var d = ( ix + 1 ) + gridX1 * iy;
+
+			// faces
+
+			indices.push( a, b, d );
+			indices.push( b, c, d );
+
+		}
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+}
+
+PlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+PlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  specularMap: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
+ *  combine: THREE.Multiply,
+ *  reflectivity: <float>,
+ *  refractionRatio: <float>,
+ *
+ *  depthTest: <bool>,
+ *  depthWrite: <bool>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>
+ * }
+ */
+
+function MeshBasicMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'MeshBasicMaterial';
+
+	this.color = new Color( 0xffffff ); // emissive
+
+	this.map = null;
+
+	this.lightMap = null;
+	this.lightMapIntensity = 1.0;
+
+	this.aoMap = null;
+	this.aoMapIntensity = 1.0;
+
+	this.specularMap = null;
+
+	this.alphaMap = null;
+
+	this.envMap = null;
+	this.combine = MultiplyOperation;
+	this.reflectivity = 1;
+	this.refractionRatio = 0.98;
+
+	this.wireframe = false;
+	this.wireframeLinewidth = 1;
+	this.wireframeLinecap = 'round';
+	this.wireframeLinejoin = 'round';
+
+	this.skinning = false;
+	this.morphTargets = false;
+
+	this.lights = false;
+
+	this.setValues( parameters );
+
+}
+
+MeshBasicMaterial.prototype = Object.create( Material.prototype );
+MeshBasicMaterial.prototype.constructor = MeshBasicMaterial;
+
+MeshBasicMaterial.prototype.isMeshBasicMaterial = true;
+
+MeshBasicMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.color.copy( source.color );
+
+	this.map = source.map;
+
+	this.lightMap = source.lightMap;
+	this.lightMapIntensity = source.lightMapIntensity;
+
+	this.aoMap = source.aoMap;
+	this.aoMapIntensity = source.aoMapIntensity;
+
+	this.specularMap = source.specularMap;
+
+	this.alphaMap = source.alphaMap;
+
+	this.envMap = source.envMap;
+	this.combine = source.combine;
+	this.reflectivity = source.reflectivity;
+	this.refractionRatio = source.refractionRatio;
+
+	this.wireframe = source.wireframe;
+	this.wireframeLinewidth = source.wireframeLinewidth;
+	this.wireframeLinecap = source.wireframeLinecap;
+	this.wireframeLinejoin = source.wireframeLinejoin;
+
+	this.skinning = source.skinning;
+	this.morphTargets = source.morphTargets;
+
+	return this;
+
+};
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * parameters = {
+ *  defines: { "label" : "value" },
+ *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
+ *
+ *  fragmentShader: <string>,
+ *  vertexShader: <string>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  lights: <bool>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ * }
+ */
+
+function ShaderMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'ShaderMaterial';
+
+	this.defines = {};
+	this.uniforms = {};
+
+	this.vertexShader = 'void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}';
+	this.fragmentShader = 'void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}';
+
+	this.linewidth = 1;
+
+	this.wireframe = false;
+	this.wireframeLinewidth = 1;
+
+	this.fog = false; // set to use scene fog
+	this.lights = false; // set to use scene lights
+	this.clipping = false; // set to use user-defined clipping planes
+
+	this.skinning = false; // set to use skinning attribute streams
+	this.morphTargets = false; // set to use morph targets
+	this.morphNormals = false; // set to use morph normals
+
+	this.extensions = {
+		derivatives: false, // set to use derivatives
+		fragDepth: false, // set to use fragment depth values
+		drawBuffers: false, // set to use draw buffers
+		shaderTextureLOD: false // set to use shader texture LOD
+	};
+
+	// When rendered geometry doesn't include these attributes but the material does,
+	// use these default values in WebGL. This avoids errors when buffer data is missing.
+	this.defaultAttributeValues = {
+		'color': [ 1, 1, 1 ],
+		'uv': [ 0, 0 ],
+		'uv2': [ 0, 0 ]
+	};
+
+	this.index0AttributeName = undefined;
+
+	if ( parameters !== undefined ) {
+
+		if ( parameters.attributes !== undefined ) {
+
+			console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );
+
+		}
+
+		this.setValues( parameters );
+
+	}
+
+}
+
+ShaderMaterial.prototype = Object.create( Material.prototype );
+ShaderMaterial.prototype.constructor = ShaderMaterial;
+
+ShaderMaterial.prototype.isShaderMaterial = true;
+
+ShaderMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.fragmentShader = source.fragmentShader;
+	this.vertexShader = source.vertexShader;
+
+	this.uniforms = UniformsUtils.clone( source.uniforms );
+
+	this.defines = source.defines;
+
+	this.wireframe = source.wireframe;
+	this.wireframeLinewidth = source.wireframeLinewidth;
+
+	this.lights = source.lights;
+	this.clipping = source.clipping;
+
+	this.skinning = source.skinning;
+
+	this.morphTargets = source.morphTargets;
+	this.morphNormals = source.morphNormals;
+
+	this.extensions = source.extensions;
+
+	return this;
+
+};
+
+ShaderMaterial.prototype.toJSON = function ( meta ) {
+
+	var data = Material.prototype.toJSON.call( this, meta );
+
+	data.uniforms = this.uniforms;
+	data.vertexShader = this.vertexShader;
+	data.fragmentShader = this.fragmentShader;
+
+	return data;
+
+};
+
+/**
+ * @author bhouston / http://clara.io
+ */
+
+function Ray( origin, direction ) {
+
+	this.origin = ( origin !== undefined ) ? origin : new Vector3();
+	this.direction = ( direction !== undefined ) ? direction : new Vector3();
+
+}
+
+Object.assign( Ray.prototype, {
+
+	set: function ( origin, direction ) {
+
+		this.origin.copy( origin );
+		this.direction.copy( direction );
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( ray ) {
+
+		this.origin.copy( ray.origin );
+		this.direction.copy( ray.direction );
+
+		return this;
+
+	},
+
+	at: function ( t, optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+
+		return result.copy( this.direction ).multiplyScalar( t ).add( this.origin );
+
+	},
+
+	lookAt: function ( v ) {
+
+		this.direction.copy( v ).sub( this.origin ).normalize();
+
+		return this;
+
+	},
+
+	recast: function () {
+
+		var v1 = new Vector3();
+
+		return function recast( t ) {
+
+			this.origin.copy( this.at( t, v1 ) );
+
+			return this;
+
+		};
+
+	}(),
+
+	closestPointToPoint: function ( point, optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+		result.subVectors( point, this.origin );
+		var directionDistance = result.dot( this.direction );
+
+		if ( directionDistance < 0 ) {
+
+			return result.copy( this.origin );
+
+		}
+
+		return result.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );
+
+	},
+
+	distanceToPoint: function ( point ) {
+
+		return Math.sqrt( this.distanceSqToPoint( point ) );
+
+	},
+
+	distanceSqToPoint: function () {
+
+		var v1 = new Vector3();
+
+		return function distanceSqToPoint( point ) {
+
+			var directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );
+
+			// point behind the ray
+
+			if ( directionDistance < 0 ) {
+
+				return this.origin.distanceToSquared( point );
+
+			}
+
+			v1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );
+
+			return v1.distanceToSquared( point );
+
+		};
+
+	}(),
+
+	distanceSqToSegment: function () {
+
+		var segCenter = new Vector3();
+		var segDir = new Vector3();
+		var diff = new Vector3();
+
+		return function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {
+
+			// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
+			// It returns the min distance between the ray and the segment
+			// defined by v0 and v1
+			// It can also set two optional targets :
+			// - The closest point on the ray
+			// - The closest point on the segment
+
+			segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
+			segDir.copy( v1 ).sub( v0 ).normalize();
+			diff.copy( this.origin ).sub( segCenter );
+
+			var segExtent = v0.distanceTo( v1 ) * 0.5;
+			var a01 = - this.direction.dot( segDir );
+			var b0 = diff.dot( this.direction );
+			var b1 = - diff.dot( segDir );
+			var c = diff.lengthSq();
+			var det = Math.abs( 1 - a01 * a01 );
+			var s0, s1, sqrDist, extDet;
+
+			if ( det > 0 ) {
+
+				// The ray and segment are not parallel.
+
+				s0 = a01 * b1 - b0;
+				s1 = a01 * b0 - b1;
+				extDet = segExtent * det;
+
+				if ( s0 >= 0 ) {
+
+					if ( s1 >= - extDet ) {
+
+						if ( s1 <= extDet ) {
+
+							// region 0
+							// Minimum at interior points of ray and segment.
+
+							var invDet = 1 / det;
+							s0 *= invDet;
+							s1 *= invDet;
+							sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;
+
+						} else {
+
+							// region 1
+
+							s1 = segExtent;
+							s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
+							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+						}
+
+					} else {
+
+						// region 5
+
+						s1 = - segExtent;
+						s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
+						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+					}
+
+				} else {
+
+					if ( s1 <= - extDet ) {
+
+						// region 4
+
+						s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
+						s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
+						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+					} else if ( s1 <= extDet ) {
+
+						// region 3
+
+						s0 = 0;
+						s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
+						sqrDist = s1 * ( s1 + 2 * b1 ) + c;
+
+					} else {
+
+						// region 2
+
+						s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
+						s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
+						sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+					}
+
+				}
+
+			} else {
+
+				// Ray and segment are parallel.
+
+				s1 = ( a01 > 0 ) ? - segExtent : segExtent;
+				s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
+				sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
+
+			}
+
+			if ( optionalPointOnRay ) {
+
+				optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );
+
+			}
+
+			if ( optionalPointOnSegment ) {
+
+				optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );
+
+			}
+
+			return sqrDist;
+
+		};
+
+	}(),
+
+	intersectSphere: function () {
+
+		var v1 = new Vector3();
+
+		return function intersectSphere( sphere, optionalTarget ) {
+
+			v1.subVectors( sphere.center, this.origin );
+			var tca = v1.dot( this.direction );
+			var d2 = v1.dot( v1 ) - tca * tca;
+			var radius2 = sphere.radius * sphere.radius;
+
+			if ( d2 > radius2 ) return null;
+
+			var thc = Math.sqrt( radius2 - d2 );
+
+			// t0 = first intersect point - entrance on front of sphere
+			var t0 = tca - thc;
+
+			// t1 = second intersect point - exit point on back of sphere
+			var t1 = tca + thc;
+
+			// test to see if both t0 and t1 are behind the ray - if so, return null
+			if ( t0 < 0 && t1 < 0 ) return null;
+
+			// test to see if t0 is behind the ray:
+			// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
+			// in order to always return an intersect point that is in front of the ray.
+			if ( t0 < 0 ) return this.at( t1, optionalTarget );
+
+			// else t0 is in front of the ray, so return the first collision point scaled by t0
+			return this.at( t0, optionalTarget );
+
+		};
+
+	}(),
+
+	intersectsSphere: function ( sphere ) {
+
+		return this.distanceToPoint( sphere.center ) <= sphere.radius;
+
+	},
+
+	distanceToPlane: function ( plane ) {
+
+		var denominator = plane.normal.dot( this.direction );
+
+		if ( denominator === 0 ) {
+
+			// line is coplanar, return origin
+			if ( plane.distanceToPoint( this.origin ) === 0 ) {
+
+				return 0;
+
+			}
+
+			// Null is preferable to undefined since undefined means.... it is undefined
+
+			return null;
+
+		}
+
+		var t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;
+
+		// Return if the ray never intersects the plane
+
+		return t >= 0 ? t : null;
+
+	},
+
+	intersectPlane: function ( plane, optionalTarget ) {
+
+		var t = this.distanceToPlane( plane );
+
+		if ( t === null ) {
+
+			return null;
+
+		}
+
+		return this.at( t, optionalTarget );
+
+	},
+
+	intersectsPlane: function ( plane ) {
+
+		// check if the ray lies on the plane first
+
+		var distToPoint = plane.distanceToPoint( this.origin );
+
+		if ( distToPoint === 0 ) {
+
+			return true;
+
+		}
+
+		var denominator = plane.normal.dot( this.direction );
+
+		if ( denominator * distToPoint < 0 ) {
+
+			return true;
+
+		}
+
+		// ray origin is behind the plane (and is pointing behind it)
+
+		return false;
+
+	},
+
+	intersectBox: function ( box, optionalTarget ) {
+
+		var tmin, tmax, tymin, tymax, tzmin, tzmax;
+
+		var invdirx = 1 / this.direction.x,
+			invdiry = 1 / this.direction.y,
+			invdirz = 1 / this.direction.z;
+
+		var origin = this.origin;
+
+		if ( invdirx >= 0 ) {
+
+			tmin = ( box.min.x - origin.x ) * invdirx;
+			tmax = ( box.max.x - origin.x ) * invdirx;
+
+		} else {
+
+			tmin = ( box.max.x - origin.x ) * invdirx;
+			tmax = ( box.min.x - origin.x ) * invdirx;
+
+		}
+
+		if ( invdiry >= 0 ) {
+
+			tymin = ( box.min.y - origin.y ) * invdiry;
+			tymax = ( box.max.y - origin.y ) * invdiry;
+
+		} else {
+
+			tymin = ( box.max.y - origin.y ) * invdiry;
+			tymax = ( box.min.y - origin.y ) * invdiry;
+
+		}
+
+		if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;
+
+		// These lines also handle the case where tmin or tmax is NaN
+		// (result of 0 * Infinity). x !== x returns true if x is NaN
+
+		if ( tymin > tmin || tmin !== tmin ) tmin = tymin;
+
+		if ( tymax < tmax || tmax !== tmax ) tmax = tymax;
+
+		if ( invdirz >= 0 ) {
+
+			tzmin = ( box.min.z - origin.z ) * invdirz;
+			tzmax = ( box.max.z - origin.z ) * invdirz;
+
+		} else {
+
+			tzmin = ( box.max.z - origin.z ) * invdirz;
+			tzmax = ( box.min.z - origin.z ) * invdirz;
+
+		}
+
+		if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;
+
+		if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;
+
+		if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;
+
+		//return point closest to the ray (positive side)
+
+		if ( tmax < 0 ) return null;
+
+		return this.at( tmin >= 0 ? tmin : tmax, optionalTarget );
+
+	},
+
+	intersectsBox: ( function () {
+
+		var v = new Vector3();
+
+		return function intersectsBox( box ) {
+
+			return this.intersectBox( box, v ) !== null;
+
+		};
+
+	} )(),
+
+	intersectTriangle: function () {
+
+		// Compute the offset origin, edges, and normal.
+		var diff = new Vector3();
+		var edge1 = new Vector3();
+		var edge2 = new Vector3();
+		var normal = new Vector3();
+
+		return function intersectTriangle( a, b, c, backfaceCulling, optionalTarget ) {
+
+			// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h
+
+			edge1.subVectors( b, a );
+			edge2.subVectors( c, a );
+			normal.crossVectors( edge1, edge2 );
+
+			// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
+			// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
+			//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
+			//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
+			//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
+			var DdN = this.direction.dot( normal );
+			var sign;
+
+			if ( DdN > 0 ) {
+
+				if ( backfaceCulling ) return null;
+				sign = 1;
+
+			} else if ( DdN < 0 ) {
+
+				sign = - 1;
+				DdN = - DdN;
+
+			} else {
+
+				return null;
+
+			}
+
+			diff.subVectors( this.origin, a );
+			var DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );
+
+			// b1 < 0, no intersection
+			if ( DdQxE2 < 0 ) {
+
+				return null;
+
+			}
+
+			var DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );
+
+			// b2 < 0, no intersection
+			if ( DdE1xQ < 0 ) {
+
+				return null;
+
+			}
+
+			// b1+b2 > 1, no intersection
+			if ( DdQxE2 + DdE1xQ > DdN ) {
+
+				return null;
+
+			}
+
+			// Line intersects triangle, check if ray does.
+			var QdN = - sign * diff.dot( normal );
+
+			// t < 0, no intersection
+			if ( QdN < 0 ) {
+
+				return null;
+
+			}
+
+			// Ray intersects triangle.
+			return this.at( QdN / DdN, optionalTarget );
+
+		};
+
+	}(),
+
+	applyMatrix4: function ( matrix4 ) {
+
+		this.origin.applyMatrix4( matrix4 );
+		this.direction.transformDirection( matrix4 );
+
+		return this;
+
+	},
+
+	equals: function ( ray ) {
+
+		return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );
+
+	}
+
+} );
+
+/**
+ * @author bhouston / http://clara.io
+ */
+
+function Line3( start, end ) {
+
+	this.start = ( start !== undefined ) ? start : new Vector3();
+	this.end = ( end !== undefined ) ? end : new Vector3();
+
+}
+
+Object.assign( Line3.prototype, {
+
+	set: function ( start, end ) {
+
+		this.start.copy( start );
+		this.end.copy( end );
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( line ) {
+
+		this.start.copy( line.start );
+		this.end.copy( line.end );
+
+		return this;
+
+	},
+
+	getCenter: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+		return result.addVectors( this.start, this.end ).multiplyScalar( 0.5 );
+
+	},
+
+	delta: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+		return result.subVectors( this.end, this.start );
+
+	},
+
+	distanceSq: function () {
+
+		return this.start.distanceToSquared( this.end );
+
+	},
+
+	distance: function () {
+
+		return this.start.distanceTo( this.end );
+
+	},
+
+	at: function ( t, optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+
+		return this.delta( result ).multiplyScalar( t ).add( this.start );
+
+	},
+
+	closestPointToPointParameter: function () {
+
+		var startP = new Vector3();
+		var startEnd = new Vector3();
+
+		return function closestPointToPointParameter( point, clampToLine ) {
+
+			startP.subVectors( point, this.start );
+			startEnd.subVectors( this.end, this.start );
+
+			var startEnd2 = startEnd.dot( startEnd );
+			var startEnd_startP = startEnd.dot( startP );
+
+			var t = startEnd_startP / startEnd2;
+
+			if ( clampToLine ) {
+
+				t = _Math.clamp( t, 0, 1 );
+
+			}
+
+			return t;
+
+		};
+
+	}(),
+
+	closestPointToPoint: function ( point, clampToLine, optionalTarget ) {
+
+		var t = this.closestPointToPointParameter( point, clampToLine );
+
+		var result = optionalTarget || new Vector3();
+
+		return this.delta( result ).multiplyScalar( t ).add( this.start );
+
+	},
+
+	applyMatrix4: function ( matrix ) {
+
+		this.start.applyMatrix4( matrix );
+		this.end.applyMatrix4( matrix );
+
+		return this;
+
+	},
+
+	equals: function ( line ) {
+
+		return line.start.equals( this.start ) && line.end.equals( this.end );
+
+	}
+
+} );
+
+/**
+ * @author bhouston / http://clara.io
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Triangle( a, b, c ) {
+
+	this.a = ( a !== undefined ) ? a : new Vector3();
+	this.b = ( b !== undefined ) ? b : new Vector3();
+	this.c = ( c !== undefined ) ? c : new Vector3();
+
+}
+
+Object.assign( Triangle, {
+
+	normal: function () {
+
+		var v0 = new Vector3();
+
+		return function normal( a, b, c, optionalTarget ) {
+
+			var result = optionalTarget || new Vector3();
+
+			result.subVectors( c, b );
+			v0.subVectors( a, b );
+			result.cross( v0 );
+
+			var resultLengthSq = result.lengthSq();
+			if ( resultLengthSq > 0 ) {
+
+				return result.multiplyScalar( 1 / Math.sqrt( resultLengthSq ) );
+
+			}
+
+			return result.set( 0, 0, 0 );
+
+		};
+
+	}(),
+
+	// static/instance method to calculate barycentric coordinates
+	// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
+	barycoordFromPoint: function () {
+
+		var v0 = new Vector3();
+		var v1 = new Vector3();
+		var v2 = new Vector3();
+
+		return function barycoordFromPoint( point, a, b, c, optionalTarget ) {
+
+			v0.subVectors( c, a );
+			v1.subVectors( b, a );
+			v2.subVectors( point, a );
+
+			var dot00 = v0.dot( v0 );
+			var dot01 = v0.dot( v1 );
+			var dot02 = v0.dot( v2 );
+			var dot11 = v1.dot( v1 );
+			var dot12 = v1.dot( v2 );
+
+			var denom = ( dot00 * dot11 - dot01 * dot01 );
+
+			var result = optionalTarget || new Vector3();
+
+			// collinear or singular triangle
+			if ( denom === 0 ) {
+
+				// arbitrary location outside of triangle?
+				// not sure if this is the best idea, maybe should be returning undefined
+				return result.set( - 2, - 1, - 1 );
+
+			}
+
+			var invDenom = 1 / denom;
+			var u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
+			var v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;
+
+			// barycentric coordinates must always sum to 1
+			return result.set( 1 - u - v, v, u );
+
+		};
+
+	}(),
+
+	containsPoint: function () {
+
+		var v1 = new Vector3();
+
+		return function containsPoint( point, a, b, c ) {
+
+			var result = Triangle.barycoordFromPoint( point, a, b, c, v1 );
+
+			return ( result.x >= 0 ) && ( result.y >= 0 ) && ( ( result.x + result.y ) <= 1 );
+
+		};
+
+	}()
+
+} );
+
+Object.assign( Triangle.prototype, {
+
+	set: function ( a, b, c ) {
+
+		this.a.copy( a );
+		this.b.copy( b );
+		this.c.copy( c );
+
+		return this;
+
+	},
+
+	setFromPointsAndIndices: function ( points, i0, i1, i2 ) {
+
+		this.a.copy( points[ i0 ] );
+		this.b.copy( points[ i1 ] );
+		this.c.copy( points[ i2 ] );
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( triangle ) {
+
+		this.a.copy( triangle.a );
+		this.b.copy( triangle.b );
+		this.c.copy( triangle.c );
+
+		return this;
+
+	},
+
+	area: function () {
+
+		var v0 = new Vector3();
+		var v1 = new Vector3();
+
+		return function area() {
+
+			v0.subVectors( this.c, this.b );
+			v1.subVectors( this.a, this.b );
+
+			return v0.cross( v1 ).length() * 0.5;
+
+		};
+
+	}(),
+
+	midpoint: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Vector3();
+		return result.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );
+
+	},
+
+	normal: function ( optionalTarget ) {
+
+		return Triangle.normal( this.a, this.b, this.c, optionalTarget );
+
+	},
+
+	plane: function ( optionalTarget ) {
+
+		var result = optionalTarget || new Plane();
+
+		return result.setFromCoplanarPoints( this.a, this.b, this.c );
+
+	},
+
+	barycoordFromPoint: function ( point, optionalTarget ) {
+
+		return Triangle.barycoordFromPoint( point, this.a, this.b, this.c, optionalTarget );
+
+	},
+
+	containsPoint: function ( point ) {
+
+		return Triangle.containsPoint( point, this.a, this.b, this.c );
+
+	},
+
+	closestPointToPoint: function () {
+
+		var plane = new Plane();
+		var edgeList = [ new Line3(), new Line3(), new Line3() ];
+		var projectedPoint = new Vector3();
+		var closestPoint = new Vector3();
+
+		return function closestPointToPoint( point, optionalTarget ) {
+
+			var result = optionalTarget || new Vector3();
+			var minDistance = Infinity;
+
+			// project the point onto the plane of the triangle
+
+			plane.setFromCoplanarPoints( this.a, this.b, this.c );
+			plane.projectPoint( point, projectedPoint );
+
+			// check if the projection lies within the triangle
+
+			if ( this.containsPoint( projectedPoint ) === true ) {
+
+				// if so, this is the closest point
+
+				result.copy( projectedPoint );
+
+			} else {
+
+				// if not, the point falls outside the triangle. the result is the closest point to the triangle's edges or vertices
+
+				edgeList[ 0 ].set( this.a, this.b );
+				edgeList[ 1 ].set( this.b, this.c );
+				edgeList[ 2 ].set( this.c, this.a );
+
+				for ( var i = 0; i < edgeList.length; i ++ ) {
+
+					edgeList[ i ].closestPointToPoint( projectedPoint, true, closestPoint );
+
+					var distance = projectedPoint.distanceToSquared( closestPoint );
+
+					if ( distance < minDistance ) {
+
+						minDistance = distance;
+
+						result.copy( closestPoint );
+
+					}
+
+				}
+
+			}
+
+			return result;
+
+		};
+
+	}(),
+
+	equals: function ( triangle ) {
+
+		return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ * @author mikael emtinger / http://gomo.se/
+ * @author jonobr1 / http://jonobr1.com/
+ */
+
+function Mesh( geometry, material ) {
+
+	Object3D.call( this );
+
+	this.type = 'Mesh';
+
+	this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
+	this.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );
+
+	this.drawMode = TrianglesDrawMode;
+
+	this.updateMorphTargets();
+
+}
+
+Mesh.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Mesh,
+
+	isMesh: true,
+
+	setDrawMode: function ( value ) {
+
+		this.drawMode = value;
+
+	},
+
+	copy: function ( source ) {
+
+		Object3D.prototype.copy.call( this, source );
+
+		this.drawMode = source.drawMode;
+
+		if ( source.morphTargetInfluences !== undefined ) {
+
+			this.morphTargetInfluences = source.morphTargetInfluences.slice();
+
+		}
+
+		if ( source.morphTargetDictionary !== undefined ) {
+
+			this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );
+
+		}
+
+		return this;
+
+	},
+
+	updateMorphTargets: function () {
+
+		var geometry = this.geometry;
+		var m, ml, name;
+
+		if ( geometry.isBufferGeometry ) {
+
+			var morphAttributes = geometry.morphAttributes;
+			var keys = Object.keys( morphAttributes );
+
+			if ( keys.length > 0 ) {
+
+				var morphAttribute = morphAttributes[ keys[ 0 ] ];
+
+				if ( morphAttribute !== undefined ) {
+
+					this.morphTargetInfluences = [];
+					this.morphTargetDictionary = {};
+
+					for ( m = 0, ml = morphAttribute.length; m < ml; m ++ ) {
+
+						name = morphAttribute[ m ].name || String( m );
+
+						this.morphTargetInfluences.push( 0 );
+						this.morphTargetDictionary[ name ] = m;
+
+					}
+
+				}
+
+			}
+
+		} else {
+
+			var morphTargets = geometry.morphTargets;
+
+			if ( morphTargets !== undefined && morphTargets.length > 0 ) {
+
+				this.morphTargetInfluences = [];
+				this.morphTargetDictionary = {};
+
+				for ( m = 0, ml = morphTargets.length; m < ml; m ++ ) {
+
+					name = morphTargets[ m ].name || String( m );
+
+					this.morphTargetInfluences.push( 0 );
+					this.morphTargetDictionary[ name ] = m;
+
+				}
+
+			}
+
+		}
+
+	},
+
+	raycast: ( function () {
+
+		var inverseMatrix = new Matrix4();
+		var ray = new Ray();
+		var sphere = new Sphere();
+
+		var vA = new Vector3();
+		var vB = new Vector3();
+		var vC = new Vector3();
+
+		var tempA = new Vector3();
+		var tempB = new Vector3();
+		var tempC = new Vector3();
+
+		var uvA = new Vector2();
+		var uvB = new Vector2();
+		var uvC = new Vector2();
+
+		var barycoord = new Vector3();
+
+		var intersectionPoint = new Vector3();
+		var intersectionPointWorld = new Vector3();
+
+		function uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) {
+
+			Triangle.barycoordFromPoint( point, p1, p2, p3, barycoord );
+
+			uv1.multiplyScalar( barycoord.x );
+			uv2.multiplyScalar( barycoord.y );
+			uv3.multiplyScalar( barycoord.z );
+
+			uv1.add( uv2 ).add( uv3 );
+
+			return uv1.clone();
+
+		}
+
+		function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {
+
+			var intersect;
+
+			if ( material.side === BackSide ) {
+
+				intersect = ray.intersectTriangle( pC, pB, pA, true, point );
+
+			} else {
+
+				intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );
+
+			}
+
+			if ( intersect === null ) return null;
+
+			intersectionPointWorld.copy( point );
+			intersectionPointWorld.applyMatrix4( object.matrixWorld );
+
+			var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );
+
+			if ( distance < raycaster.near || distance > raycaster.far ) return null;
+
+			return {
+				distance: distance,
+				point: intersectionPointWorld.clone(),
+				object: object
+			};
+
+		}
+
+		function checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {
+
+			vA.fromBufferAttribute( position, a );
+			vB.fromBufferAttribute( position, b );
+			vC.fromBufferAttribute( position, c );
+
+			var intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );
+
+			if ( intersection ) {
+
+				if ( uv ) {
+
+					uvA.fromBufferAttribute( uv, a );
+					uvB.fromBufferAttribute( uv, b );
+					uvC.fromBufferAttribute( uv, c );
+
+					intersection.uv = uvIntersection( intersectionPoint, vA, vB, vC, uvA, uvB, uvC );
+
+				}
+
+				intersection.face = new Face3( a, b, c, Triangle.normal( vA, vB, vC ) );
+				intersection.faceIndex = a;
+
+			}
+
+			return intersection;
+
+		}
+
+		return function raycast( raycaster, intersects ) {
+
+			var geometry = this.geometry;
+			var material = this.material;
+			var matrixWorld = this.matrixWorld;
+
+			if ( material === undefined ) return;
+
+			// Checking boundingSphere distance to ray
+
+			if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
+
+			sphere.copy( geometry.boundingSphere );
+			sphere.applyMatrix4( matrixWorld );
+
+			if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
+
+			//
+
+			inverseMatrix.getInverse( matrixWorld );
+			ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
+
+			// Check boundingBox before continuing
+
+			if ( geometry.boundingBox !== null ) {
+
+				if ( ray.intersectsBox( geometry.boundingBox ) === false ) return;
+
+			}
+
+			var intersection;
+
+			if ( geometry.isBufferGeometry ) {
+
+				var a, b, c;
+				var index = geometry.index;
+				var position = geometry.attributes.position;
+				var uv = geometry.attributes.uv;
+				var i, l;
+
+				if ( index !== null ) {
+
+					// indexed buffer geometry
+
+					for ( i = 0, l = index.count; i < l; i += 3 ) {
+
+						a = index.getX( i );
+						b = index.getX( i + 1 );
+						c = index.getX( i + 2 );
+
+						intersection = checkBufferGeometryIntersection( this, raycaster, ray, position, uv, a, b, c );
+
+						if ( intersection ) {
+
+							intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indices buffer semantics
+							intersects.push( intersection );
+
+						}
+
+					}
+
+				} else if ( position !== undefined ) {
+
+					// non-indexed buffer geometry
+
+					for ( i = 0, l = position.count; i < l; i += 3 ) {
+
+						a = i;
+						b = i + 1;
+						c = i + 2;
+
+						intersection = checkBufferGeometryIntersection( this, raycaster, ray, position, uv, a, b, c );
+
+						if ( intersection ) {
+
+							intersection.index = a; // triangle number in positions buffer semantics
+							intersects.push( intersection );
+
+						}
+
+					}
+
+				}
+
+			} else if ( geometry.isGeometry ) {
+
+				var fvA, fvB, fvC;
+				var isMultiMaterial = Array.isArray( material );
+
+				var vertices = geometry.vertices;
+				var faces = geometry.faces;
+				var uvs;
+
+				var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
+				if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;
+
+				for ( var f = 0, fl = faces.length; f < fl; f ++ ) {
+
+					var face = faces[ f ];
+					var faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material;
+
+					if ( faceMaterial === undefined ) continue;
+
+					fvA = vertices[ face.a ];
+					fvB = vertices[ face.b ];
+					fvC = vertices[ face.c ];
+
+					if ( faceMaterial.morphTargets === true ) {
+
+						var morphTargets = geometry.morphTargets;
+						var morphInfluences = this.morphTargetInfluences;
+
+						vA.set( 0, 0, 0 );
+						vB.set( 0, 0, 0 );
+						vC.set( 0, 0, 0 );
+
+						for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {
+
+							var influence = morphInfluences[ t ];
+
+							if ( influence === 0 ) continue;
+
+							var targets = morphTargets[ t ].vertices;
+
+							vA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence );
+							vB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence );
+							vC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence );
+
+						}
+
+						vA.add( fvA );
+						vB.add( fvB );
+						vC.add( fvC );
+
+						fvA = vA;
+						fvB = vB;
+						fvC = vC;
+
+					}
+
+					intersection = checkIntersection( this, faceMaterial, raycaster, ray, fvA, fvB, fvC, intersectionPoint );
+
+					if ( intersection ) {
+
+						if ( uvs && uvs[ f ] ) {
+
+							var uvs_f = uvs[ f ];
+							uvA.copy( uvs_f[ 0 ] );
+							uvB.copy( uvs_f[ 1 ] );
+							uvC.copy( uvs_f[ 2 ] );
+
+							intersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC );
+
+						}
+
+						intersection.face = face;
+						intersection.faceIndex = f;
+						intersects.push( intersection );
+
+					}
+
+				}
+
+			}
+
+		};
+
+	}() ),
+
+	clone: function () {
+
+		return new this.constructor( this.geometry, this.material ).copy( this );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLBackground( renderer, state, geometries, premultipliedAlpha ) {
+
+	var clearColor = new Color( 0x000000 );
+	var clearAlpha = 0;
+
+	var planeCamera, planeMesh;
+	var boxMesh;
+
+	function render( renderList, scene, camera, forceClear ) {
+
+		var background = scene.background;
+
+		if ( background === null ) {
+
+			setClear( clearColor, clearAlpha );
+
+		} else if ( background && background.isColor ) {
+
+			setClear( background, 1 );
+			forceClear = true;
+
+		}
+
+		if ( renderer.autoClear || forceClear ) {
+
+			renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );
+
+		}
+
+		if ( background && background.isCubeTexture ) {
+
+			if ( boxMesh === undefined ) {
+
+				boxMesh = new Mesh(
+					new BoxBufferGeometry( 1, 1, 1 ),
+					new ShaderMaterial( {
+						uniforms: ShaderLib.cube.uniforms,
+						vertexShader: ShaderLib.cube.vertexShader,
+						fragmentShader: ShaderLib.cube.fragmentShader,
+						side: BackSide,
+						depthTest: true,
+						depthWrite: false,
+						fog: false
+					} )
+				);
+
+				boxMesh.geometry.removeAttribute( 'normal' );
+				boxMesh.geometry.removeAttribute( 'uv' );
+
+				boxMesh.onBeforeRender = function ( renderer, scene, camera ) {
+
+					this.matrixWorld.copyPosition( camera.matrixWorld );
+
+				};
+
+				geometries.update( boxMesh.geometry );
+
+			}
+
+			boxMesh.material.uniforms.tCube.value = background;
+
+			renderList.push( boxMesh, boxMesh.geometry, boxMesh.material, 0, null );
+
+		} else if ( background && background.isTexture ) {
+
+			if ( planeCamera === undefined ) {
+
+				planeCamera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
+
+				planeMesh = new Mesh(
+					new PlaneBufferGeometry( 2, 2 ),
+					new MeshBasicMaterial( { depthTest: false, depthWrite: false, fog: false } )
+				);
+
+				geometries.update( planeMesh.geometry );
+
+			}
+
+			planeMesh.material.map = background;
+
+			// TODO Push this to renderList
+
+			renderer.renderBufferDirect( planeCamera, null, planeMesh.geometry, planeMesh.material, planeMesh, null );
+
+		}
+
+	}
+
+	function setClear( color, alpha ) {
+
+		state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );
+
+	}
+
+	return {
+
+		getClearColor: function () {
+
+			return clearColor;
+
+		},
+		setClearColor: function ( color, alpha ) {
+
+			clearColor.set( color );
+			clearAlpha = alpha !== undefined ? alpha : 1;
+			setClear( clearColor, clearAlpha );
+
+		},
+		getClearAlpha: function () {
+
+			return clearAlpha;
+
+		},
+		setClearAlpha: function ( alpha ) {
+
+			clearAlpha = alpha;
+			setClear( clearColor, clearAlpha );
+
+		},
+		render: render
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function painterSortStable( a, b ) {
+
+	if ( a.renderOrder !== b.renderOrder ) {
+
+		return a.renderOrder - b.renderOrder;
+
+	} else if ( a.program && b.program && a.program !== b.program ) {
+
+		return a.program.id - b.program.id;
+
+	} else if ( a.material.id !== b.material.id ) {
+
+		return a.material.id - b.material.id;
+
+	} else if ( a.z !== b.z ) {
+
+		return a.z - b.z;
+
+	} else {
+
+		return a.id - b.id;
+
+	}
+
+}
+
+function reversePainterSortStable( a, b ) {
+
+	if ( a.renderOrder !== b.renderOrder ) {
+
+		return a.renderOrder - b.renderOrder;
+
+	} if ( a.z !== b.z ) {
+
+		return b.z - a.z;
+
+	} else {
+
+		return a.id - b.id;
+
+	}
+
+}
+
+function WebGLRenderList() {
+
+	var renderItems = [];
+	var renderItemsIndex = 0;
+
+	var opaque = [];
+	var transparent = [];
+
+	function init() {
+
+		renderItemsIndex = 0;
+
+		opaque.length = 0;
+		transparent.length = 0;
+
+	}
+
+	function push( object, geometry, material, z, group ) {
+
+		var renderItem = renderItems[ renderItemsIndex ];
+
+		if ( renderItem === undefined ) {
+
+			renderItem = {
+				id: object.id,
+				object: object,
+				geometry: geometry,
+				material: material,
+				program: material.program,
+				renderOrder: object.renderOrder,
+				z: z,
+				group: group
+			};
+
+			renderItems[ renderItemsIndex ] = renderItem;
+
+		} else {
+
+			renderItem.id = object.id;
+			renderItem.object = object;
+			renderItem.geometry = geometry;
+			renderItem.material = material;
+			renderItem.program = material.program;
+			renderItem.renderOrder = object.renderOrder;
+			renderItem.z = z;
+			renderItem.group = group;
+
+		}
+
+		( material.transparent === true ? transparent : opaque ).push( renderItem );
+
+		renderItemsIndex ++;
+
+	}
+
+	function sort() {
+
+		if ( opaque.length > 1 ) opaque.sort( painterSortStable );
+		if ( transparent.length > 1 ) transparent.sort( reversePainterSortStable );
+
+	}
+
+	return {
+		opaque: opaque,
+		transparent: transparent,
+
+		init: init,
+		push: push,
+
+		sort: sort
+	};
+
+}
+
+function WebGLRenderLists() {
+
+	var lists = {};
+
+	function get( scene, camera ) {
+
+		var hash = scene.id + ',' + camera.id;
+		var list = lists[ hash ];
+
+		if ( list === undefined ) {
+
+			// console.log( 'THREE.WebGLRenderLists:', hash );
+
+			list = new WebGLRenderList();
+			lists[ hash ] = list;
+
+		}
+
+		return list;
+
+	}
+
+	function dispose() {
+
+		lists = {};
+
+	}
+
+	return {
+		get: get,
+		dispose: dispose
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function absNumericalSort( a, b ) {
+
+	return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );
+
+}
+
+function WebGLMorphtargets( gl ) {
+
+	var influencesList = {};
+	var morphInfluences = new Float32Array( 8 );
+
+	function update( object, geometry, material, program ) {
+
+		var objectInfluences = object.morphTargetInfluences;
+
+		var length = objectInfluences.length;
+
+		var influences = influencesList[ geometry.id ];
+
+		if ( influences === undefined ) {
+
+			// initialise list
+
+			influences = [];
+
+			for ( var i = 0; i < length; i ++ ) {
+
+				influences[ i ] = [ i, 0 ];
+
+			}
+
+			influencesList[ geometry.id ] = influences;
+
+		}
+
+		var morphTargets = material.morphTargets && geometry.morphAttributes.position;
+		var morphNormals = material.morphNormals && geometry.morphAttributes.normal;
+
+		// Remove current morphAttributes
+
+		for ( var i = 0; i < length; i ++ ) {
+
+			var influence = influences[ i ];
+
+			if ( influence[ 1 ] !== 0 ) {
+
+				if ( morphTargets ) geometry.removeAttribute( 'morphTarget' + i );
+				if ( morphNormals ) geometry.removeAttribute( 'morphNormal' + i );
+
+			}
+
+		}
+
+		// Collect influences
+
+		for ( var i = 0; i < length; i ++ ) {
+
+			var influence = influences[ i ];
+
+			influence[ 0 ] = i;
+			influence[ 1 ] = objectInfluences[ i ];
+
+		}
+
+		influences.sort( absNumericalSort );
+
+		// Add morphAttributes
+
+		for ( var i = 0; i < 8; i ++ ) {
+
+			var influence = influences[ i ];
+
+			if ( influence ) {
+
+				var index = influence[ 0 ];
+				var value = influence[ 1 ];
+
+				if ( value ) {
+
+					if ( morphTargets ) geometry.addAttribute( 'morphTarget' + i, morphTargets[ index ] );
+					if ( morphNormals ) geometry.addAttribute( 'morphNormal' + i, morphNormals[ index ] );
+
+					morphInfluences[ i ] = value;
+					continue;
+
+				}
+
+			}
+
+			morphInfluences[ i ] = 0;
+
+		}
+
+		program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );
+
+	}
+
+	return {
+
+		update: update
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLIndexedBufferRenderer( gl, extensions, infoRender ) {
+
+	var mode;
+
+	function setMode( value ) {
+
+		mode = value;
+
+	}
+
+	var type, bytesPerElement;
+
+	function setIndex( value ) {
+
+		type = value.type;
+		bytesPerElement = value.bytesPerElement;
+
+	}
+
+	function render( start, count ) {
+
+		gl.drawElements( mode, count, type, start * bytesPerElement );
+
+		infoRender.calls ++;
+		infoRender.vertices += count;
+
+		if ( mode === gl.TRIANGLES ) infoRender.faces += count / 3;
+		else if ( mode === gl.POINTS ) infoRender.points += count;
+
+	}
+
+	function renderInstances( geometry, start, count ) {
+
+		var extension = extensions.get( 'ANGLE_instanced_arrays' );
+
+		if ( extension === null ) {
+
+			console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
+			return;
+
+		}
+
+		extension.drawElementsInstancedANGLE( mode, count, type, start * bytesPerElement, geometry.maxInstancedCount );
+
+		infoRender.calls ++;
+		infoRender.vertices += count * geometry.maxInstancedCount;
+
+		if ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3;
+		else if ( mode === gl.POINTS ) infoRender.points += geometry.maxInstancedCount * count;
+
+	}
+
+	//
+
+	this.setMode = setMode;
+	this.setIndex = setIndex;
+	this.render = render;
+	this.renderInstances = renderInstances;
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLBufferRenderer( gl, extensions, infoRender ) {
+
+	var mode;
+
+	function setMode( value ) {
+
+		mode = value;
+
+	}
+
+	function render( start, count ) {
+
+		gl.drawArrays( mode, start, count );
+
+		infoRender.calls ++;
+		infoRender.vertices += count;
+
+		if ( mode === gl.TRIANGLES ) infoRender.faces += count / 3;
+		else if ( mode === gl.POINTS ) infoRender.points += count;
+
+	}
+
+	function renderInstances( geometry, start, count ) {
+
+		var extension = extensions.get( 'ANGLE_instanced_arrays' );
+
+		if ( extension === null ) {
+
+			console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
+			return;
+
+		}
+
+		var position = geometry.attributes.position;
+
+		if ( position.isInterleavedBufferAttribute ) {
+
+			count = position.data.count;
+
+			extension.drawArraysInstancedANGLE( mode, 0, count, geometry.maxInstancedCount );
+
+		} else {
+
+			extension.drawArraysInstancedANGLE( mode, start, count, geometry.maxInstancedCount );
+
+		}
+
+		infoRender.calls ++;
+		infoRender.vertices += count * geometry.maxInstancedCount;
+
+		if ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3;
+		else if ( mode === gl.POINTS ) infoRender.points += geometry.maxInstancedCount * count;
+
+	}
+
+	//
+
+	this.setMode = setMode;
+	this.render = render;
+	this.renderInstances = renderInstances;
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLGeometries( gl, attributes, infoMemory ) {
+
+	var geometries = {};
+	var wireframeAttributes = {};
+
+	function onGeometryDispose( event ) {
+
+		var geometry = event.target;
+		var buffergeometry = geometries[ geometry.id ];
+
+		if ( buffergeometry.index !== null ) {
+
+			attributes.remove( buffergeometry.index );
+
+		}
+
+		for ( var name in buffergeometry.attributes ) {
+
+			attributes.remove( buffergeometry.attributes[ name ] );
+
+		}
+
+		geometry.removeEventListener( 'dispose', onGeometryDispose );
+
+		delete geometries[ geometry.id ];
+
+		// TODO Remove duplicate code
+
+		var attribute = wireframeAttributes[ geometry.id ];
+
+		if ( attribute ) {
+
+			attributes.remove( attribute );
+			delete wireframeAttributes[ geometry.id ];
+
+		}
+
+		attribute = wireframeAttributes[ buffergeometry.id ];
+
+		if ( attribute ) {
+
+			attributes.remove( attribute );
+			delete wireframeAttributes[ buffergeometry.id ];
+
+		}
+
+		//
+
+		infoMemory.geometries --;
+
+	}
+
+	function get( object, geometry ) {
+
+		var buffergeometry = geometries[ geometry.id ];
+
+		if ( buffergeometry ) return buffergeometry;
+
+		geometry.addEventListener( 'dispose', onGeometryDispose );
+
+		if ( geometry.isBufferGeometry ) {
+
+			buffergeometry = geometry;
+
+		} else if ( geometry.isGeometry ) {
+
+			if ( geometry._bufferGeometry === undefined ) {
+
+				geometry._bufferGeometry = new BufferGeometry().setFromObject( object );
+
+			}
+
+			buffergeometry = geometry._bufferGeometry;
+
+		}
+
+		geometries[ geometry.id ] = buffergeometry;
+
+		infoMemory.geometries ++;
+
+		return buffergeometry;
+
+	}
+
+	function update( geometry ) {
+
+		var index = geometry.index;
+		var geometryAttributes = geometry.attributes;
+
+		if ( index !== null ) {
+
+			attributes.update( index, gl.ELEMENT_ARRAY_BUFFER );
+
+		}
+
+		for ( var name in geometryAttributes ) {
+
+			attributes.update( geometryAttributes[ name ], gl.ARRAY_BUFFER );
+
+		}
+
+		// morph targets
+
+		var morphAttributes = geometry.morphAttributes;
+
+		for ( var name in morphAttributes ) {
+
+			var array = morphAttributes[ name ];
+
+			for ( var i = 0, l = array.length; i < l; i ++ ) {
+
+				attributes.update( array[ i ], gl.ARRAY_BUFFER );
+
+			}
+
+		}
+
+	}
+
+	function getWireframeAttribute( geometry ) {
+
+		var attribute = wireframeAttributes[ geometry.id ];
+
+		if ( attribute ) return attribute;
+
+		var indices = [];
+
+		var geometryIndex = geometry.index;
+		var geometryAttributes = geometry.attributes;
+
+		// console.time( 'wireframe' );
+
+		if ( geometryIndex !== null ) {
+
+			var array = geometryIndex.array;
+
+			for ( var i = 0, l = array.length; i < l; i += 3 ) {
+
+				var a = array[ i + 0 ];
+				var b = array[ i + 1 ];
+				var c = array[ i + 2 ];
+
+				indices.push( a, b, b, c, c, a );
+
+			}
+
+		} else {
+
+			var array = geometryAttributes.position.array;
+
+			for ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {
+
+				var a = i + 0;
+				var b = i + 1;
+				var c = i + 2;
+
+				indices.push( a, b, b, c, c, a );
+
+			}
+
+		}
+
+		// console.timeEnd( 'wireframe' );
+
+		attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
+
+		attributes.update( attribute, gl.ELEMENT_ARRAY_BUFFER );
+
+		wireframeAttributes[ geometry.id ] = attribute;
+
+		return attribute;
+
+	}
+
+	return {
+
+		get: get,
+		update: update,
+
+		getWireframeAttribute: getWireframeAttribute
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function UniformsCache() {
+
+	var lights = {};
+
+	return {
+
+		get: function ( light ) {
+
+			if ( lights[ light.id ] !== undefined ) {
+
+				return lights[ light.id ];
+
+			}
+
+			var uniforms;
+
+			switch ( light.type ) {
+
+				case 'DirectionalLight':
+					uniforms = {
+						direction: new Vector3(),
+						color: new Color(),
+
+						shadow: false,
+						shadowBias: 0,
+						shadowRadius: 1,
+						shadowMapSize: new Vector2()
+					};
+					break;
+
+				case 'SpotLight':
+					uniforms = {
+						position: new Vector3(),
+						direction: new Vector3(),
+						color: new Color(),
+						distance: 0,
+						coneCos: 0,
+						penumbraCos: 0,
+						decay: 0,
+
+						shadow: false,
+						shadowBias: 0,
+						shadowRadius: 1,
+						shadowMapSize: new Vector2()
+					};
+					break;
+
+				case 'PointLight':
+					uniforms = {
+						position: new Vector3(),
+						color: new Color(),
+						distance: 0,
+						decay: 0,
+
+						shadow: false,
+						shadowBias: 0,
+						shadowRadius: 1,
+						shadowMapSize: new Vector2(),
+						shadowCameraNear: 1,
+						shadowCameraFar: 1000
+					};
+					break;
+
+				case 'HemisphereLight':
+					uniforms = {
+						direction: new Vector3(),
+						skyColor: new Color(),
+						groundColor: new Color()
+					};
+					break;
+
+				case 'RectAreaLight':
+					uniforms = {
+						color: new Color(),
+						position: new Vector3(),
+						halfWidth: new Vector3(),
+						halfHeight: new Vector3()
+						// TODO (abelnation): set RectAreaLight shadow uniforms
+					};
+					break;
+
+			}
+
+			lights[ light.id ] = uniforms;
+
+			return uniforms;
+
+		}
+
+	};
+
+}
+
+function WebGLLights() {
+
+	var cache = new UniformsCache();
+
+	var state = {
+
+		hash: '',
+
+		ambient: [ 0, 0, 0 ],
+		directional: [],
+		directionalShadowMap: [],
+		directionalShadowMatrix: [],
+		spot: [],
+		spotShadowMap: [],
+		spotShadowMatrix: [],
+		rectArea: [],
+		point: [],
+		pointShadowMap: [],
+		pointShadowMatrix: [],
+		hemi: []
+
+	};
+
+	var vector3 = new Vector3();
+	var matrix4 = new Matrix4();
+	var matrix42 = new Matrix4();
+
+	function setup( lights, shadows, camera ) {
+
+		var r = 0, g = 0, b = 0;
+
+		var directionalLength = 0;
+		var pointLength = 0;
+		var spotLength = 0;
+		var rectAreaLength = 0;
+		var hemiLength = 0;
+
+		var viewMatrix = camera.matrixWorldInverse;
+
+		for ( var i = 0, l = lights.length; i < l; i ++ ) {
+
+			var light = lights[ i ];
+
+			var color = light.color;
+			var intensity = light.intensity;
+			var distance = light.distance;
+
+			var shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;
+
+			if ( light.isAmbientLight ) {
+
+				r += color.r * intensity;
+				g += color.g * intensity;
+				b += color.b * intensity;
+
+			} else if ( light.isDirectionalLight ) {
+
+				var uniforms = cache.get( light );
+
+				uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
+				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
+				vector3.setFromMatrixPosition( light.target.matrixWorld );
+				uniforms.direction.sub( vector3 );
+				uniforms.direction.transformDirection( viewMatrix );
+
+				uniforms.shadow = light.castShadow;
+
+				if ( light.castShadow ) {
+
+					var shadow = light.shadow;
+
+					uniforms.shadowBias = shadow.bias;
+					uniforms.shadowRadius = shadow.radius;
+					uniforms.shadowMapSize = shadow.mapSize;
+
+				}
+
+				state.directionalShadowMap[ directionalLength ] = shadowMap;
+				state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;
+				state.directional[ directionalLength ] = uniforms;
+
+				directionalLength ++;
+
+			} else if ( light.isSpotLight ) {
+
+				var uniforms = cache.get( light );
+
+				uniforms.position.setFromMatrixPosition( light.matrixWorld );
+				uniforms.position.applyMatrix4( viewMatrix );
+
+				uniforms.color.copy( color ).multiplyScalar( intensity );
+				uniforms.distance = distance;
+
+				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
+				vector3.setFromMatrixPosition( light.target.matrixWorld );
+				uniforms.direction.sub( vector3 );
+				uniforms.direction.transformDirection( viewMatrix );
+
+				uniforms.coneCos = Math.cos( light.angle );
+				uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );
+				uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;
+
+				uniforms.shadow = light.castShadow;
+
+				if ( light.castShadow ) {
+
+					var shadow = light.shadow;
+
+					uniforms.shadowBias = shadow.bias;
+					uniforms.shadowRadius = shadow.radius;
+					uniforms.shadowMapSize = shadow.mapSize;
+
+				}
+
+				state.spotShadowMap[ spotLength ] = shadowMap;
+				state.spotShadowMatrix[ spotLength ] = light.shadow.matrix;
+				state.spot[ spotLength ] = uniforms;
+
+				spotLength ++;
+
+			} else if ( light.isRectAreaLight ) {
+
+				var uniforms = cache.get( light );
+
+				// (a) intensity controls irradiance of entire light
+				uniforms.color
+					.copy( color )
+					.multiplyScalar( intensity / ( light.width * light.height ) );
+
+				// (b) intensity controls the radiance per light area
+				// uniforms.color.copy( color ).multiplyScalar( intensity );
+
+				uniforms.position.setFromMatrixPosition( light.matrixWorld );
+				uniforms.position.applyMatrix4( viewMatrix );
+
+				// extract local rotation of light to derive width/height half vectors
+				matrix42.identity();
+				matrix4.copy( light.matrixWorld );
+				matrix4.premultiply( viewMatrix );
+				matrix42.extractRotation( matrix4 );
+
+				uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
+				uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );
+
+				uniforms.halfWidth.applyMatrix4( matrix42 );
+				uniforms.halfHeight.applyMatrix4( matrix42 );
+
+				// TODO (abelnation): RectAreaLight distance?
+				// uniforms.distance = distance;
+
+				state.rectArea[ rectAreaLength ] = uniforms;
+
+				rectAreaLength ++;
+
+			} else if ( light.isPointLight ) {
+
+				var uniforms = cache.get( light );
+
+				uniforms.position.setFromMatrixPosition( light.matrixWorld );
+				uniforms.position.applyMatrix4( viewMatrix );
+
+				uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
+				uniforms.distance = light.distance;
+				uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;
+
+				uniforms.shadow = light.castShadow;
+
+				if ( light.castShadow ) {
+
+					var shadow = light.shadow;
+
+					uniforms.shadowBias = shadow.bias;
+					uniforms.shadowRadius = shadow.radius;
+					uniforms.shadowMapSize = shadow.mapSize;
+					uniforms.shadowCameraNear = shadow.camera.near;
+					uniforms.shadowCameraFar = shadow.camera.far;
+
+				}
+
+				state.pointShadowMap[ pointLength ] = shadowMap;
+				state.pointShadowMatrix[ pointLength ] = light.shadow.matrix;
+				state.point[ pointLength ] = uniforms;
+
+				pointLength ++;
+
+			} else if ( light.isHemisphereLight ) {
+
+				var uniforms = cache.get( light );
+
+				uniforms.direction.setFromMatrixPosition( light.matrixWorld );
+				uniforms.direction.transformDirection( viewMatrix );
+				uniforms.direction.normalize();
+
+				uniforms.skyColor.copy( light.color ).multiplyScalar( intensity );
+				uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );
+
+				state.hemi[ hemiLength ] = uniforms;
+
+				hemiLength ++;
+
+			}
+
+		}
+
+		state.ambient[ 0 ] = r;
+		state.ambient[ 1 ] = g;
+		state.ambient[ 2 ] = b;
+
+		state.directional.length = directionalLength;
+		state.spot.length = spotLength;
+		state.rectArea.length = rectAreaLength;
+		state.point.length = pointLength;
+		state.hemi.length = hemiLength;
+
+		// TODO (sam-g-steel) why aren't we using join
+		state.hash = directionalLength + ',' + pointLength + ',' + spotLength + ',' + rectAreaLength + ',' + hemiLength + ',' + shadows.length;
+
+	}
+
+	return {
+		setup: setup,
+		state: state
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLObjects( geometries, infoRender ) {
+
+	var updateList = {};
+
+	function update( object ) {
+
+		var frame = infoRender.frame;
+
+		var geometry = object.geometry;
+		var buffergeometry = geometries.get( object, geometry );
+
+		// Update once per frame
+
+		if ( updateList[ buffergeometry.id ] !== frame ) {
+
+			if ( geometry.isGeometry ) {
+
+				buffergeometry.updateFromObject( object );
+
+			}
+
+			geometries.update( buffergeometry );
+
+			updateList[ buffergeometry.id ] = frame;
+
+		}
+
+		return buffergeometry;
+
+	}
+
+	function clear() {
+
+		updateList = {};
+
+	}
+
+	return {
+
+		update: update,
+		clear: clear
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function addLineNumbers( string ) {
+
+	var lines = string.split( '\n' );
+
+	for ( var i = 0; i < lines.length; i ++ ) {
+
+		lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];
+
+	}
+
+	return lines.join( '\n' );
+
+}
+
+function WebGLShader( gl, type, string ) {
+
+	var shader = gl.createShader( type );
+
+	gl.shaderSource( shader, string );
+	gl.compileShader( shader );
+
+	if ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) {
+
+		console.error( 'THREE.WebGLShader: Shader couldn\'t compile.' );
+
+	}
+
+	if ( gl.getShaderInfoLog( shader ) !== '' ) {
+
+		console.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );
+
+	}
+
+	// --enable-privileged-webgl-extension
+	// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );
+
+	return shader;
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+var programIdCount = 0;
+
+function getEncodingComponents( encoding ) {
+
+	switch ( encoding ) {
+
+		case LinearEncoding:
+			return [ 'Linear', '( value )' ];
+		case sRGBEncoding:
+			return [ 'sRGB', '( value )' ];
+		case RGBEEncoding:
+			return [ 'RGBE', '( value )' ];
+		case RGBM7Encoding:
+			return [ 'RGBM', '( value, 7.0 )' ];
+		case RGBM16Encoding:
+			return [ 'RGBM', '( value, 16.0 )' ];
+		case RGBDEncoding:
+			return [ 'RGBD', '( value, 256.0 )' ];
+		case GammaEncoding:
+			return [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ];
+		default:
+			throw new Error( 'unsupported encoding: ' + encoding );
+
+	}
+
+}
+
+function getTexelDecodingFunction( functionName, encoding ) {
+
+	var components = getEncodingComponents( encoding );
+	return "vec4 " + functionName + "( vec4 value ) { return " + components[ 0 ] + "ToLinear" + components[ 1 ] + "; }";
+
+}
+
+function getTexelEncodingFunction( functionName, encoding ) {
+
+	var components = getEncodingComponents( encoding );
+	return "vec4 " + functionName + "( vec4 value ) { return LinearTo" + components[ 0 ] + components[ 1 ] + "; }";
+
+}
+
+function getToneMappingFunction( functionName, toneMapping ) {
+
+	var toneMappingName;
+
+	switch ( toneMapping ) {
+
+		case LinearToneMapping:
+			toneMappingName = "Linear";
+			break;
+
+		case ReinhardToneMapping:
+			toneMappingName = "Reinhard";
+			break;
+
+		case Uncharted2ToneMapping:
+			toneMappingName = "Uncharted2";
+			break;
+
+		case CineonToneMapping:
+			toneMappingName = "OptimizedCineon";
+			break;
+
+		default:
+			throw new Error( 'unsupported toneMapping: ' + toneMapping );
+
+	}
+
+	return "vec3 " + functionName + "( vec3 color ) { return " + toneMappingName + "ToneMapping( color ); }";
+
+}
+
+function generateExtensions( extensions, parameters, rendererExtensions ) {
+
+	extensions = extensions || {};
+
+	var chunks = [
+		( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.normalMap || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',
+		( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',
+		( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',
+		( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : ''
+	];
+
+	return chunks.filter( filterEmptyLine ).join( '\n' );
+
+}
+
+function generateDefines( defines ) {
+
+	var chunks = [];
+
+	for ( var name in defines ) {
+
+		var value = defines[ name ];
+
+		if ( value === false ) continue;
+
+		chunks.push( '#define ' + name + ' ' + value );
+
+	}
+
+	return chunks.join( '\n' );
+
+}
+
+function fetchAttributeLocations( gl, program ) {
+
+	var attributes = {};
+
+	var n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES );
+
+	for ( var i = 0; i < n; i ++ ) {
+
+		var info = gl.getActiveAttrib( program, i );
+		var name = info.name;
+
+		// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );
+
+		attributes[ name ] = gl.getAttribLocation( program, name );
+
+	}
+
+	return attributes;
+
+}
+
+function filterEmptyLine( string ) {
+
+	return string !== '';
+
+}
+
+function replaceLightNums( string, parameters ) {
+
+	return string
+		.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )
+		.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )
+		.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )
+		.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )
+		.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );
+
+}
+
+function parseIncludes( string ) {
+
+	var pattern = /^[ \t]*#include +<([\w\d.]+)>/gm;
+
+	function replace( match, include ) {
+
+		var replace = ShaderChunk[ include ];
+
+		if ( replace === undefined ) {
+
+			throw new Error( 'Can not resolve #include <' + include + '>' );
+
+		}
+
+		return parseIncludes( replace );
+
+	}
+
+	return string.replace( pattern, replace );
+
+}
+
+function unrollLoops( string ) {
+
+	var pattern = /for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;
+
+	function replace( match, start, end, snippet ) {
+
+		var unroll = '';
+
+		for ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {
+
+			unroll += snippet.replace( /\[ i \]/g, '[ ' + i + ' ]' );
+
+		}
+
+		return unroll;
+
+	}
+
+	return string.replace( pattern, replace );
+
+}
+
+function WebGLProgram( renderer, extensions, code, material, shader, parameters ) {
+
+	var gl = renderer.context;
+
+	var defines = material.defines;
+
+	var vertexShader = shader.vertexShader;
+	var fragmentShader = shader.fragmentShader;
+
+	var shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';
+
+	if ( parameters.shadowMapType === PCFShadowMap ) {
+
+		shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';
+
+	} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {
+
+		shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';
+
+	}
+
+	var envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
+	var envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
+	var envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
+
+	if ( parameters.envMap ) {
+
+		switch ( material.envMap.mapping ) {
+
+			case CubeReflectionMapping:
+			case CubeRefractionMapping:
+				envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
+				break;
+
+			case CubeUVReflectionMapping:
+			case CubeUVRefractionMapping:
+				envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
+				break;
+
+			case EquirectangularReflectionMapping:
+			case EquirectangularRefractionMapping:
+				envMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';
+				break;
+
+			case SphericalReflectionMapping:
+				envMapTypeDefine = 'ENVMAP_TYPE_SPHERE';
+				break;
+
+		}
+
+		switch ( material.envMap.mapping ) {
+
+			case CubeRefractionMapping:
+			case EquirectangularRefractionMapping:
+				envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
+				break;
+
+		}
+
+		switch ( material.combine ) {
+
+			case MultiplyOperation:
+				envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
+				break;
+
+			case MixOperation:
+				envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
+				break;
+
+			case AddOperation:
+				envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
+				break;
+
+		}
+
+	}
+
+	var gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;
+
+	// console.log( 'building new program ' );
+
+	//
+
+	var customExtensions = generateExtensions( material.extensions, parameters, extensions );
+
+	var customDefines = generateDefines( defines );
+
+	//
+
+	var program = gl.createProgram();
+
+	var prefixVertex, prefixFragment;
+
+	if ( material.isRawShaderMaterial ) {
+
+		prefixVertex = [
+
+			customDefines
+
+		].filter( filterEmptyLine ).join( '\n' );
+
+		if ( prefixVertex.length > 0 ) {
+
+			prefixVertex += '\n';
+
+		}
+
+		prefixFragment = [
+
+			customExtensions,
+			customDefines
+
+		].filter( filterEmptyLine ).join( '\n' );
+
+		if ( prefixFragment.length > 0 ) {
+
+			prefixFragment += '\n';
+
+		}
+
+	} else {
+
+		prefixVertex = [
+
+			'precision ' + parameters.precision + ' float;',
+			'precision ' + parameters.precision + ' int;',
+
+			'#define SHADER_NAME ' + shader.name,
+
+			customDefines,
+
+			parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',
+
+			'#define GAMMA_FACTOR ' + gammaFactorDefine,
+
+			'#define MAX_BONES ' + parameters.maxBones,
+			( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
+			( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',
+
+			parameters.map ? '#define USE_MAP' : '',
+			parameters.envMap ? '#define USE_ENVMAP' : '',
+			parameters.envMap ? '#define ' + envMapModeDefine : '',
+			parameters.lightMap ? '#define USE_LIGHTMAP' : '',
+			parameters.aoMap ? '#define USE_AOMAP' : '',
+			parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
+			parameters.bumpMap ? '#define USE_BUMPMAP' : '',
+			parameters.normalMap ? '#define USE_NORMALMAP' : '',
+			parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',
+			parameters.specularMap ? '#define USE_SPECULARMAP' : '',
+			parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
+			parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
+			parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
+			parameters.vertexColors ? '#define USE_COLOR' : '',
+
+			parameters.flatShading ? '#define FLAT_SHADED' : '',
+
+			parameters.skinning ? '#define USE_SKINNING' : '',
+			parameters.useVertexTexture ? '#define BONE_TEXTURE' : '',
+
+			parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
+			parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
+			parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
+			parameters.flipSided ? '#define FLIP_SIDED' : '',
+
+			'#define NUM_CLIPPING_PLANES ' + parameters.numClippingPlanes,
+
+			parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
+			parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
+
+			parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',
+
+			parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
+			parameters.logarithmicDepthBuffer && extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',
+
+			'uniform mat4 modelMatrix;',
+			'uniform mat4 modelViewMatrix;',
+			'uniform mat4 projectionMatrix;',
+			'uniform mat4 viewMatrix;',
+			'uniform mat3 normalMatrix;',
+			'uniform vec3 cameraPosition;',
+
+			'attribute vec3 position;',
+			'attribute vec3 normal;',
+			'attribute vec2 uv;',
+
+			'#ifdef USE_COLOR',
+
+			'	attribute vec3 color;',
+
+			'#endif',
+
+			'#ifdef USE_MORPHTARGETS',
+
+			'	attribute vec3 morphTarget0;',
+			'	attribute vec3 morphTarget1;',
+			'	attribute vec3 morphTarget2;',
+			'	attribute vec3 morphTarget3;',
+
+			'	#ifdef USE_MORPHNORMALS',
+
+			'		attribute vec3 morphNormal0;',
+			'		attribute vec3 morphNormal1;',
+			'		attribute vec3 morphNormal2;',
+			'		attribute vec3 morphNormal3;',
+
+			'	#else',
+
+			'		attribute vec3 morphTarget4;',
+			'		attribute vec3 morphTarget5;',
+			'		attribute vec3 morphTarget6;',
+			'		attribute vec3 morphTarget7;',
+
+			'	#endif',
+
+			'#endif',
+
+			'#ifdef USE_SKINNING',
+
+			'	attribute vec4 skinIndex;',
+			'	attribute vec4 skinWeight;',
+
+			'#endif',
+
+			'\n'
+
+		].filter( filterEmptyLine ).join( '\n' );
+
+		prefixFragment = [
+
+			customExtensions,
+
+			'precision ' + parameters.precision + ' float;',
+			'precision ' + parameters.precision + ' int;',
+
+			'#define SHADER_NAME ' + shader.name,
+
+			customDefines,
+
+			parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest : '',
+
+			'#define GAMMA_FACTOR ' + gammaFactorDefine,
+
+			( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
+			( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',
+
+			parameters.map ? '#define USE_MAP' : '',
+			parameters.envMap ? '#define USE_ENVMAP' : '',
+			parameters.envMap ? '#define ' + envMapTypeDefine : '',
+			parameters.envMap ? '#define ' + envMapModeDefine : '',
+			parameters.envMap ? '#define ' + envMapBlendingDefine : '',
+			parameters.lightMap ? '#define USE_LIGHTMAP' : '',
+			parameters.aoMap ? '#define USE_AOMAP' : '',
+			parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
+			parameters.bumpMap ? '#define USE_BUMPMAP' : '',
+			parameters.normalMap ? '#define USE_NORMALMAP' : '',
+			parameters.specularMap ? '#define USE_SPECULARMAP' : '',
+			parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
+			parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
+			parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
+			parameters.vertexColors ? '#define USE_COLOR' : '',
+
+			parameters.gradientMap ? '#define USE_GRADIENTMAP' : '',
+
+			parameters.flatShading ? '#define FLAT_SHADED' : '',
+
+			parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
+			parameters.flipSided ? '#define FLIP_SIDED' : '',
+
+			'#define NUM_CLIPPING_PLANES ' + parameters.numClippingPlanes,
+			'#define UNION_CLIPPING_PLANES ' + ( parameters.numClippingPlanes - parameters.numClipIntersection ),
+
+			parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
+			parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
+
+			parameters.premultipliedAlpha ? "#define PREMULTIPLIED_ALPHA" : '',
+
+			parameters.physicallyCorrectLights ? "#define PHYSICALLY_CORRECT_LIGHTS" : '',
+
+			parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
+			parameters.logarithmicDepthBuffer && extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',
+
+			parameters.envMap && extensions.get( 'EXT_shader_texture_lod' ) ? '#define TEXTURE_LOD_EXT' : '',
+
+			'uniform mat4 viewMatrix;',
+			'uniform vec3 cameraPosition;',
+
+			( parameters.toneMapping !== NoToneMapping ) ? "#define TONE_MAPPING" : '',
+			( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below
+			( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( "toneMapping", parameters.toneMapping ) : '',
+
+			parameters.dithering ? '#define DITHERING' : '',
+
+			( parameters.outputEncoding || parameters.mapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ? ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below
+			parameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',
+			parameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',
+			parameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',
+			parameters.outputEncoding ? getTexelEncodingFunction( "linearToOutputTexel", parameters.outputEncoding ) : '',
+
+			parameters.depthPacking ? "#define DEPTH_PACKING " + material.depthPacking : '',
+
+			'\n'
+
+		].filter( filterEmptyLine ).join( '\n' );
+
+	}
+
+	vertexShader = parseIncludes( vertexShader );
+	vertexShader = replaceLightNums( vertexShader, parameters );
+
+	fragmentShader = parseIncludes( fragmentShader );
+	fragmentShader = replaceLightNums( fragmentShader, parameters );
+
+	if ( ! material.isShaderMaterial ) {
+
+		vertexShader = unrollLoops( vertexShader );
+		fragmentShader = unrollLoops( fragmentShader );
+
+	}
+
+	var vertexGlsl = prefixVertex + vertexShader;
+	var fragmentGlsl = prefixFragment + fragmentShader;
+
+	// console.log( '*VERTEX*', vertexGlsl );
+	// console.log( '*FRAGMENT*', fragmentGlsl );
+
+	var glVertexShader = WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl );
+	var glFragmentShader = WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl );
+
+	gl.attachShader( program, glVertexShader );
+	gl.attachShader( program, glFragmentShader );
+
+	// Force a particular attribute to index 0.
+
+	if ( material.index0AttributeName !== undefined ) {
+
+		gl.bindAttribLocation( program, 0, material.index0AttributeName );
+
+	} else if ( parameters.morphTargets === true ) {
+
+		// programs with morphTargets displace position out of attribute 0
+		gl.bindAttribLocation( program, 0, 'position' );
+
+	}
+
+	gl.linkProgram( program );
+
+	var programLog = gl.getProgramInfoLog( program );
+	var vertexLog = gl.getShaderInfoLog( glVertexShader );
+	var fragmentLog = gl.getShaderInfoLog( glFragmentShader );
+
+	var runnable = true;
+	var haveDiagnostics = true;
+
+	// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );
+	// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );
+
+	if ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) {
+
+		runnable = false;
+
+		console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );
+
+	} else if ( programLog !== '' ) {
+
+		console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );
+
+	} else if ( vertexLog === '' || fragmentLog === '' ) {
+
+		haveDiagnostics = false;
+
+	}
+
+	if ( haveDiagnostics ) {
+
+		this.diagnostics = {
+
+			runnable: runnable,
+			material: material,
+
+			programLog: programLog,
+
+			vertexShader: {
+
+				log: vertexLog,
+				prefix: prefixVertex
+
+			},
+
+			fragmentShader: {
+
+				log: fragmentLog,
+				prefix: prefixFragment
+
+			}
+
+		};
+
+	}
+
+	// clean up
+
+	gl.deleteShader( glVertexShader );
+	gl.deleteShader( glFragmentShader );
+
+	// set up caching for uniform locations
+
+	var cachedUniforms;
+
+	this.getUniforms = function () {
+
+		if ( cachedUniforms === undefined ) {
+
+			cachedUniforms = new WebGLUniforms( gl, program, renderer );
+
+		}
+
+		return cachedUniforms;
+
+	};
+
+	// set up caching for attribute locations
+
+	var cachedAttributes;
+
+	this.getAttributes = function () {
+
+		if ( cachedAttributes === undefined ) {
+
+			cachedAttributes = fetchAttributeLocations( gl, program );
+
+		}
+
+		return cachedAttributes;
+
+	};
+
+	// free resource
+
+	this.destroy = function () {
+
+		gl.deleteProgram( program );
+		this.program = undefined;
+
+	};
+
+	// DEPRECATED
+
+	Object.defineProperties( this, {
+
+		uniforms: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );
+				return this.getUniforms();
+
+			}
+		},
+
+		attributes: {
+			get: function () {
+
+				console.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );
+				return this.getAttributes();
+
+			}
+		}
+
+	} );
+
+
+	//
+
+	this.id = programIdCount ++;
+	this.code = code;
+	this.usedTimes = 1;
+	this.program = program;
+	this.vertexShader = glVertexShader;
+	this.fragmentShader = glFragmentShader;
+
+	return this;
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLPrograms( renderer, extensions, capabilities ) {
+
+	var programs = [];
+
+	var shaderIDs = {
+		MeshDepthMaterial: 'depth',
+		MeshDistanceMaterial: 'distanceRGBA',
+		MeshNormalMaterial: 'normal',
+		MeshBasicMaterial: 'basic',
+		MeshLambertMaterial: 'lambert',
+		MeshPhongMaterial: 'phong',
+		MeshToonMaterial: 'phong',
+		MeshStandardMaterial: 'physical',
+		MeshPhysicalMaterial: 'physical',
+		LineBasicMaterial: 'basic',
+		LineDashedMaterial: 'dashed',
+		PointsMaterial: 'points',
+		ShadowMaterial: 'shadow'
+	};
+
+	var parameterNames = [
+		"precision", "supportsVertexTextures", "map", "mapEncoding", "envMap", "envMapMode", "envMapEncoding",
+		"lightMap", "aoMap", "emissiveMap", "emissiveMapEncoding", "bumpMap", "normalMap", "displacementMap", "specularMap",
+		"roughnessMap", "metalnessMap", "gradientMap",
+		"alphaMap", "combine", "vertexColors", "fog", "useFog", "fogExp",
+		"flatShading", "sizeAttenuation", "logarithmicDepthBuffer", "skinning",
+		"maxBones", "useVertexTexture", "morphTargets", "morphNormals",
+		"maxMorphTargets", "maxMorphNormals", "premultipliedAlpha",
+		"numDirLights", "numPointLights", "numSpotLights", "numHemiLights", "numRectAreaLights",
+		"shadowMapEnabled", "shadowMapType", "toneMapping", 'physicallyCorrectLights',
+		"alphaTest", "doubleSided", "flipSided", "numClippingPlanes", "numClipIntersection", "depthPacking", "dithering"
+	];
+
+
+	function allocateBones( object ) {
+
+		var skeleton = object.skeleton;
+		var bones = skeleton.bones;
+
+		if ( capabilities.floatVertexTextures ) {
+
+			return 1024;
+
+		} else {
+
+			// default for when object is not specified
+			// ( for example when prebuilding shader to be used with multiple objects )
+			//
+			//  - leave some extra space for other uniforms
+			//  - limit here is ANGLE's 254 max uniform vectors
+			//    (up to 54 should be safe)
+
+			var nVertexUniforms = capabilities.maxVertexUniforms;
+			var nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );
+
+			var maxBones = Math.min( nVertexMatrices, bones.length );
+
+			if ( maxBones < bones.length ) {
+
+				console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );
+				return 0;
+
+			}
+
+			return maxBones;
+
+		}
+
+	}
+
+	function getTextureEncodingFromMap( map, gammaOverrideLinear ) {
+
+		var encoding;
+
+		if ( ! map ) {
+
+			encoding = LinearEncoding;
+
+		} else if ( map.isTexture ) {
+
+			encoding = map.encoding;
+
+		} else if ( map.isWebGLRenderTarget ) {
+
+			console.warn( "THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead." );
+			encoding = map.texture.encoding;
+
+		}
+
+		// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.
+		if ( encoding === LinearEncoding && gammaOverrideLinear ) {
+
+			encoding = GammaEncoding;
+
+		}
+
+		return encoding;
+
+	}
+
+	this.getParameters = function ( material, lights, shadows, fog, nClipPlanes, nClipIntersection, object ) {
+
+		var shaderID = shaderIDs[ material.type ];
+
+		// heuristics to create shader parameters according to lights in the scene
+		// (not to blow over maxLights budget)
+
+		var maxBones = object.isSkinnedMesh ? allocateBones( object ) : 0;
+		var precision = capabilities.precision;
+
+		if ( material.precision !== null ) {
+
+			precision = capabilities.getMaxPrecision( material.precision );
+
+			if ( precision !== material.precision ) {
+
+				console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );
+
+			}
+
+		}
+
+		var currentRenderTarget = renderer.getRenderTarget();
+
+		var parameters = {
+
+			shaderID: shaderID,
+
+			precision: precision,
+			supportsVertexTextures: capabilities.vertexTextures,
+			outputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),
+			map: !! material.map,
+			mapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),
+			envMap: !! material.envMap,
+			envMapMode: material.envMap && material.envMap.mapping,
+			envMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),
+			envMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),
+			lightMap: !! material.lightMap,
+			aoMap: !! material.aoMap,
+			emissiveMap: !! material.emissiveMap,
+			emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),
+			bumpMap: !! material.bumpMap,
+			normalMap: !! material.normalMap,
+			displacementMap: !! material.displacementMap,
+			roughnessMap: !! material.roughnessMap,
+			metalnessMap: !! material.metalnessMap,
+			specularMap: !! material.specularMap,
+			alphaMap: !! material.alphaMap,
+
+			gradientMap: !! material.gradientMap,
+
+			combine: material.combine,
+
+			vertexColors: material.vertexColors,
+
+			fog: !! fog,
+			useFog: material.fog,
+			fogExp: ( fog && fog.isFogExp2 ),
+
+			flatShading: material.flatShading,
+
+			sizeAttenuation: material.sizeAttenuation,
+			logarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,
+
+			skinning: material.skinning && maxBones > 0,
+			maxBones: maxBones,
+			useVertexTexture: capabilities.floatVertexTextures,
+
+			morphTargets: material.morphTargets,
+			morphNormals: material.morphNormals,
+			maxMorphTargets: renderer.maxMorphTargets,
+			maxMorphNormals: renderer.maxMorphNormals,
+
+			numDirLights: lights.directional.length,
+			numPointLights: lights.point.length,
+			numSpotLights: lights.spot.length,
+			numRectAreaLights: lights.rectArea.length,
+			numHemiLights: lights.hemi.length,
+
+			numClippingPlanes: nClipPlanes,
+			numClipIntersection: nClipIntersection,
+
+			dithering: material.dithering,
+
+			shadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && shadows.length > 0,
+			shadowMapType: renderer.shadowMap.type,
+
+			toneMapping: renderer.toneMapping,
+			physicallyCorrectLights: renderer.physicallyCorrectLights,
+
+			premultipliedAlpha: material.premultipliedAlpha,
+
+			alphaTest: material.alphaTest,
+			doubleSided: material.side === DoubleSide,
+			flipSided: material.side === BackSide,
+
+			depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false
+
+		};
+
+		return parameters;
+
+	};
+
+	this.getProgramCode = function ( material, parameters ) {
+
+		var array = [];
+
+		if ( parameters.shaderID ) {
+
+			array.push( parameters.shaderID );
+
+		} else {
+
+			array.push( material.fragmentShader );
+			array.push( material.vertexShader );
+
+		}
+
+		if ( material.defines !== undefined ) {
+
+			for ( var name in material.defines ) {
+
+				array.push( name );
+				array.push( material.defines[ name ] );
+
+			}
+
+		}
+
+		for ( var i = 0; i < parameterNames.length; i ++ ) {
+
+			array.push( parameters[ parameterNames[ i ] ] );
+
+		}
+
+		array.push( material.onBeforeCompile.toString() );
+
+		array.push( renderer.gammaOutput );
+
+		return array.join();
+
+	};
+
+	this.acquireProgram = function ( material, shader, parameters, code ) {
+
+		var program;
+
+		// Check if code has been already compiled
+		for ( var p = 0, pl = programs.length; p < pl; p ++ ) {
+
+			var programInfo = programs[ p ];
+
+			if ( programInfo.code === code ) {
+
+				program = programInfo;
+				++ program.usedTimes;
+
+				break;
+
+			}
+
+		}
+
+		if ( program === undefined ) {
+
+			program = new WebGLProgram( renderer, extensions, code, material, shader, parameters );
+			programs.push( program );
+
+		}
+
+		return program;
+
+	};
+
+	this.releaseProgram = function ( program ) {
+
+		if ( -- program.usedTimes === 0 ) {
+
+			// Remove from unordered set
+			var i = programs.indexOf( program );
+			programs[ i ] = programs[ programs.length - 1 ];
+			programs.pop();
+
+			// Free WebGL resources
+			program.destroy();
+
+		}
+
+	};
+
+	// Exposed for resource monitoring & error feedback via renderer.info:
+	this.programs = programs;
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, infoMemory ) {
+
+	var _isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && _gl instanceof window.WebGL2RenderingContext );
+
+	//
+
+	function clampToMaxSize( image, maxSize ) {
+
+		if ( image.width > maxSize || image.height > maxSize ) {
+
+			// Warning: Scaling through the canvas will only work with images that use
+			// premultiplied alpha.
+
+			var scale = maxSize / Math.max( image.width, image.height );
+
+			var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
+			canvas.width = Math.floor( image.width * scale );
+			canvas.height = Math.floor( image.height * scale );
+
+			var context = canvas.getContext( '2d' );
+			context.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height );
+
+			console.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );
+
+			return canvas;
+
+		}
+
+		return image;
+
+	}
+
+	function isPowerOfTwo( image ) {
+
+		return _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );
+
+	}
+
+	function makePowerOfTwo( image ) {
+
+		if ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement || image instanceof ImageBitmap ) {
+
+			var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
+			canvas.width = _Math.floorPowerOfTwo( image.width );
+			canvas.height = _Math.floorPowerOfTwo( image.height );
+
+			var context = canvas.getContext( '2d' );
+			context.drawImage( image, 0, 0, canvas.width, canvas.height );
+
+			console.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );
+
+			return canvas;
+
+		}
+
+		return image;
+
+	}
+
+	function textureNeedsPowerOfTwo( texture ) {
+
+		return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||
+			( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );
+
+	}
+
+	function textureNeedsGenerateMipmaps( texture, isPowerOfTwo ) {
+
+		return texture.generateMipmaps && isPowerOfTwo &&
+			texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
+
+	}
+
+	// Fallback filters for non-power-of-2 textures
+
+	function filterFallback( f ) {
+
+		if ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {
+
+			return _gl.NEAREST;
+
+		}
+
+		return _gl.LINEAR;
+
+	}
+
+	//
+
+	function onTextureDispose( event ) {
+
+		var texture = event.target;
+
+		texture.removeEventListener( 'dispose', onTextureDispose );
+
+		deallocateTexture( texture );
+
+		infoMemory.textures --;
+
+
+	}
+
+	function onRenderTargetDispose( event ) {
+
+		var renderTarget = event.target;
+
+		renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );
+
+		deallocateRenderTarget( renderTarget );
+
+		infoMemory.textures --;
+
+	}
+
+	//
+
+	function deallocateTexture( texture ) {
+
+		var textureProperties = properties.get( texture );
+
+		if ( texture.image && textureProperties.__image__webglTextureCube ) {
+
+			// cube texture
+
+			_gl.deleteTexture( textureProperties.__image__webglTextureCube );
+
+		} else {
+
+			// 2D texture
+
+			if ( textureProperties.__webglInit === undefined ) return;
+
+			_gl.deleteTexture( textureProperties.__webglTexture );
+
+		}
+
+		// remove all webgl properties
+		properties.remove( texture );
+
+	}
+
+	function deallocateRenderTarget( renderTarget ) {
+
+		var renderTargetProperties = properties.get( renderTarget );
+		var textureProperties = properties.get( renderTarget.texture );
+
+		if ( ! renderTarget ) return;
+
+		if ( textureProperties.__webglTexture !== undefined ) {
+
+			_gl.deleteTexture( textureProperties.__webglTexture );
+
+		}
+
+		if ( renderTarget.depthTexture ) {
+
+			renderTarget.depthTexture.dispose();
+
+		}
+
+		if ( renderTarget.isWebGLRenderTargetCube ) {
+
+			for ( var i = 0; i < 6; i ++ ) {
+
+				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
+				if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );
+
+			}
+
+		} else {
+
+			_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
+			if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );
+
+		}
+
+		properties.remove( renderTarget.texture );
+		properties.remove( renderTarget );
+
+	}
+
+	//
+
+
+
+	function setTexture2D( texture, slot ) {
+
+		var textureProperties = properties.get( texture );
+
+		if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
+
+			var image = texture.image;
+
+			if ( image === undefined ) {
+
+				console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined', texture );
+
+			} else if ( image.complete === false ) {
+
+				console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete', texture );
+
+			} else {
+
+				uploadTexture( textureProperties, texture, slot );
+				return;
+
+			}
+
+		}
+
+		state.activeTexture( _gl.TEXTURE0 + slot );
+		state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
+
+	}
+
+	function setTextureCube( texture, slot ) {
+
+		var textureProperties = properties.get( texture );
+
+		if ( texture.image.length === 6 ) {
+
+			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
+
+				if ( ! textureProperties.__image__webglTextureCube ) {
+
+					texture.addEventListener( 'dispose', onTextureDispose );
+
+					textureProperties.__image__webglTextureCube = _gl.createTexture();
+
+					infoMemory.textures ++;
+
+				}
+
+				state.activeTexture( _gl.TEXTURE0 + slot );
+				state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );
+
+				_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
+
+				var isCompressed = ( texture && texture.isCompressedTexture );
+				var isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );
+
+				var cubeImage = [];
+
+				for ( var i = 0; i < 6; i ++ ) {
+
+					if ( ! isCompressed && ! isDataTexture ) {
+
+						cubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize );
+
+					} else {
+
+						cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];
+
+					}
+
+				}
+
+				var image = cubeImage[ 0 ],
+					isPowerOfTwoImage = isPowerOfTwo( image ),
+					glFormat = utils.convert( texture.format ),
+					glType = utils.convert( texture.type );
+
+				setTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isPowerOfTwoImage );
+
+				for ( var i = 0; i < 6; i ++ ) {
+
+					if ( ! isCompressed ) {
+
+						if ( isDataTexture ) {
+
+							state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );
+
+						} else {
+
+							state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, glFormat, glType, cubeImage[ i ] );
+
+						}
+
+					} else {
+
+						var mipmap, mipmaps = cubeImage[ i ].mipmaps;
+
+						for ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {
+
+							mipmap = mipmaps[ j ];
+
+							if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {
+
+								if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {
+
+									state.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );
+
+								} else {
+
+									console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );
+
+								}
+
+							} else {
+
+								state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
+
+							}
+
+						}
+
+					}
+
+				}
+
+				if ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {
+
+					_gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );
+
+				}
+
+				textureProperties.__version = texture.version;
+
+				if ( texture.onUpdate ) texture.onUpdate( texture );
+
+			} else {
+
+				state.activeTexture( _gl.TEXTURE0 + slot );
+				state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );
+
+			}
+
+		}
+
+	}
+
+	function setTextureCubeDynamic( texture, slot ) {
+
+		state.activeTexture( _gl.TEXTURE0 + slot );
+		state.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture );
+
+	}
+
+	function setTextureParameters( textureType, texture, isPowerOfTwoImage ) {
+
+		var extension;
+
+		if ( isPowerOfTwoImage ) {
+
+			_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, utils.convert( texture.wrapS ) );
+			_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, utils.convert( texture.wrapT ) );
+
+			_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, utils.convert( texture.magFilter ) );
+			_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, utils.convert( texture.minFilter ) );
+
+		} else {
+
+			_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE );
+			_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE );
+
+			if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {
+
+				console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.', texture );
+
+			}
+
+			_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) );
+			_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) );
+
+			if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {
+
+				console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.', texture );
+
+			}
+
+		}
+
+		extension = extensions.get( 'EXT_texture_filter_anisotropic' );
+
+		if ( extension ) {
+
+			if ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;
+			if ( texture.type === HalfFloatType && extensions.get( 'OES_texture_half_float_linear' ) === null ) return;
+
+			if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {
+
+				_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );
+				properties.get( texture ).__currentAnisotropy = texture.anisotropy;
+
+			}
+
+		}
+
+	}
+
+	function uploadTexture( textureProperties, texture, slot ) {
+
+		if ( textureProperties.__webglInit === undefined ) {
+
+			textureProperties.__webglInit = true;
+
+			texture.addEventListener( 'dispose', onTextureDispose );
+
+			textureProperties.__webglTexture = _gl.createTexture();
+
+			infoMemory.textures ++;
+
+		}
+
+		state.activeTexture( _gl.TEXTURE0 + slot );
+		state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
+
+		_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
+		_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );
+		_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment );
+
+		var image = clampToMaxSize( texture.image, capabilities.maxTextureSize );
+
+		if ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( image ) === false ) {
+
+			image = makePowerOfTwo( image );
+
+		}
+
+		var isPowerOfTwoImage = isPowerOfTwo( image ),
+			glFormat = utils.convert( texture.format ),
+			glType = utils.convert( texture.type );
+
+		setTextureParameters( _gl.TEXTURE_2D, texture, isPowerOfTwoImage );
+
+		var mipmap, mipmaps = texture.mipmaps;
+
+		if ( texture.isDepthTexture ) {
+
+			// populate depth texture with dummy data
+
+			var internalFormat = _gl.DEPTH_COMPONENT;
+
+			if ( texture.type === FloatType ) {
+
+				if ( ! _isWebGL2 ) throw new Error( 'Float Depth Texture only supported in WebGL2.0' );
+				internalFormat = _gl.DEPTH_COMPONENT32F;
+
+			} else if ( _isWebGL2 ) {
+
+				// WebGL 2.0 requires signed internalformat for glTexImage2D
+				internalFormat = _gl.DEPTH_COMPONENT16;
+
+			}
+
+			if ( texture.format === DepthFormat && internalFormat === _gl.DEPTH_COMPONENT ) {
+
+				// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
+				// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
+				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+				if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {
+
+					console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );
+
+					texture.type = UnsignedShortType;
+					glType = utils.convert( texture.type );
+
+				}
+
+			}
+
+			// Depth stencil textures need the DEPTH_STENCIL internal format
+			// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+			if ( texture.format === DepthStencilFormat ) {
+
+				internalFormat = _gl.DEPTH_STENCIL;
+
+				// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
+				// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
+				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
+				if ( texture.type !== UnsignedInt248Type ) {
+
+					console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );
+
+					texture.type = UnsignedInt248Type;
+					glType = utils.convert( texture.type );
+
+				}
+
+			}
+
+			state.texImage2D( _gl.TEXTURE_2D, 0, internalFormat, image.width, image.height, 0, glFormat, glType, null );
+
+		} else if ( texture.isDataTexture ) {
+
+			// use manually created mipmaps if available
+			// if there are no manual mipmaps
+			// set 0 level mipmap and then use GL to generate other mipmap levels
+
+			if ( mipmaps.length > 0 && isPowerOfTwoImage ) {
+
+				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
+
+					mipmap = mipmaps[ i ];
+					state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
+
+				}
+
+				texture.generateMipmaps = false;
+
+			} else {
+
+				state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, image.width, image.height, 0, glFormat, glType, image.data );
+
+			}
+
+		} else if ( texture.isCompressedTexture ) {
+
+			for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
+
+				mipmap = mipmaps[ i ];
+
+				if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {
+
+					if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {
+
+						state.compressedTexImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );
+
+					} else {
+
+						console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );
+
+					}
+
+				} else {
+
+					state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
+
+				}
+
+			}
+
+		} else {
+
+			// regular Texture (image, video, canvas)
+
+			// use manually created mipmaps if available
+			// if there are no manual mipmaps
+			// set 0 level mipmap and then use GL to generate other mipmap levels
+
+			if ( mipmaps.length > 0 && isPowerOfTwoImage ) {
+
+				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
+
+					mipmap = mipmaps[ i ];
+					state.texImage2D( _gl.TEXTURE_2D, i, glFormat, glFormat, glType, mipmap );
+
+				}
+
+				texture.generateMipmaps = false;
+
+			} else {
+
+				state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, glFormat, glType, image );
+
+			}
+
+		}
+
+		if ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) _gl.generateMipmap( _gl.TEXTURE_2D );
+
+		textureProperties.__version = texture.version;
+
+		if ( texture.onUpdate ) texture.onUpdate( texture );
+
+	}
+
+	// Render targets
+
+	// Setup storage for target texture and bind it to correct framebuffer
+	function setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {
+
+		var glFormat = utils.convert( renderTarget.texture.format );
+		var glType = utils.convert( renderTarget.texture.type );
+		state.texImage2D( textureTarget, 0, glFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );
+		_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
+		_gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );
+		_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );
+
+	}
+
+	// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
+	function setupRenderBufferStorage( renderbuffer, renderTarget ) {
+
+		_gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer );
+
+		if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {
+
+			_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height );
+			_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );
+
+		} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {
+
+			_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height );
+			_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );
+
+		} else {
+
+			// FIXME: We don't support !depth !stencil
+			_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height );
+
+		}
+
+		_gl.bindRenderbuffer( _gl.RENDERBUFFER, null );
+
+	}
+
+	// Setup resources for a Depth Texture for a FBO (needs an extension)
+	function setupDepthTexture( framebuffer, renderTarget ) {
+
+		var isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );
+		if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );
+
+		_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
+
+		if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {
+
+			throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );
+
+		}
+
+		// upload an empty depth texture with framebuffer size
+		if ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||
+				renderTarget.depthTexture.image.width !== renderTarget.width ||
+				renderTarget.depthTexture.image.height !== renderTarget.height ) {
+
+			renderTarget.depthTexture.image.width = renderTarget.width;
+			renderTarget.depthTexture.image.height = renderTarget.height;
+			renderTarget.depthTexture.needsUpdate = true;
+
+		}
+
+		setTexture2D( renderTarget.depthTexture, 0 );
+
+		var webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;
+
+		if ( renderTarget.depthTexture.format === DepthFormat ) {
+
+			_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );
+
+		} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {
+
+			_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );
+
+		} else {
+
+			throw new Error( 'Unknown depthTexture format' );
+
+		}
+
+	}
+
+	// Setup GL resources for a non-texture depth buffer
+	function setupDepthRenderbuffer( renderTarget ) {
+
+		var renderTargetProperties = properties.get( renderTarget );
+
+		var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
+
+		if ( renderTarget.depthTexture ) {
+
+			if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );
+
+			setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );
+
+		} else {
+
+			if ( isCube ) {
+
+				renderTargetProperties.__webglDepthbuffer = [];
+
+				for ( var i = 0; i < 6; i ++ ) {
+
+					_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] );
+					renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
+					setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );
+
+				}
+
+			} else {
+
+				_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );
+				renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
+				setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );
+
+			}
+
+		}
+
+		_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );
+
+	}
+
+	// Set up GL resources for the render target
+	function setupRenderTarget( renderTarget ) {
+
+		var renderTargetProperties = properties.get( renderTarget );
+		var textureProperties = properties.get( renderTarget.texture );
+
+		renderTarget.addEventListener( 'dispose', onRenderTargetDispose );
+
+		textureProperties.__webglTexture = _gl.createTexture();
+
+		infoMemory.textures ++;
+
+		var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
+		var isTargetPowerOfTwo = isPowerOfTwo( renderTarget );
+
+		// Setup framebuffer
+
+		if ( isCube ) {
+
+			renderTargetProperties.__webglFramebuffer = [];
+
+			for ( var i = 0; i < 6; i ++ ) {
+
+				renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();
+
+			}
+
+		} else {
+
+			renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();
+
+		}
+
+		// Setup color buffer
+
+		if ( isCube ) {
+
+			state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );
+			setTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo );
+
+			for ( var i = 0; i < 6; i ++ ) {
+
+				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i );
+
+			}
+
+			if ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) _gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );
+			state.bindTexture( _gl.TEXTURE_CUBE_MAP, null );
+
+		} else {
+
+			state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
+			setTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo );
+			setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D );
+
+			if ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) _gl.generateMipmap( _gl.TEXTURE_2D );
+			state.bindTexture( _gl.TEXTURE_2D, null );
+
+		}
+
+		// Setup depth and stencil buffers
+
+		if ( renderTarget.depthBuffer ) {
+
+			setupDepthRenderbuffer( renderTarget );
+
+		}
+
+	}
+
+	function updateRenderTargetMipmap( renderTarget ) {
+
+		var texture = renderTarget.texture;
+		var isTargetPowerOfTwo = isPowerOfTwo( renderTarget );
+
+		if ( textureNeedsGenerateMipmaps( texture, isTargetPowerOfTwo ) ) {
+
+			var target = renderTarget.isWebGLRenderTargetCube ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;
+			var webglTexture = properties.get( texture ).__webglTexture;
+
+			state.bindTexture( target, webglTexture );
+			_gl.generateMipmap( target );
+			state.bindTexture( target, null );
+
+		}
+
+	}
+
+	this.setTexture2D = setTexture2D;
+	this.setTextureCube = setTextureCube;
+	this.setTextureCubeDynamic = setTextureCubeDynamic;
+	this.setupRenderTarget = setupRenderTarget;
+	this.updateRenderTargetMipmap = updateRenderTargetMipmap;
+
+}
+
+/**
+ * @author fordacious / fordacious.github.io
+ */
+
+function WebGLProperties() {
+
+	var properties = {};
+
+	function get( object ) {
+
+		var uuid = object.uuid;
+		var map = properties[ uuid ];
+
+		if ( map === undefined ) {
+
+			map = {};
+			properties[ uuid ] = map;
+
+		}
+
+		return map;
+
+	}
+
+	function remove( object ) {
+
+		delete properties[ object.uuid ];
+
+	}
+
+	function clear() {
+
+		properties = {};
+
+	}
+
+	return {
+		get: get,
+		remove: remove,
+		clear: clear
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLState( gl, extensions, utils ) {
+
+	function ColorBuffer() {
+
+		var locked = false;
+
+		var color = new Vector4();
+		var currentColorMask = null;
+		var currentColorClear = new Vector4( 0, 0, 0, 0 );
+
+		return {
+
+			setMask: function ( colorMask ) {
+
+				if ( currentColorMask !== colorMask && ! locked ) {
+
+					gl.colorMask( colorMask, colorMask, colorMask, colorMask );
+					currentColorMask = colorMask;
+
+				}
+
+			},
+
+			setLocked: function ( lock ) {
+
+				locked = lock;
+
+			},
+
+			setClear: function ( r, g, b, a, premultipliedAlpha ) {
+
+				if ( premultipliedAlpha === true ) {
+
+					r *= a; g *= a; b *= a;
+
+				}
+
+				color.set( r, g, b, a );
+
+				if ( currentColorClear.equals( color ) === false ) {
+
+					gl.clearColor( r, g, b, a );
+					currentColorClear.copy( color );
+
+				}
+
+			},
+
+			reset: function () {
+
+				locked = false;
+
+				currentColorMask = null;
+				currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state
+
+			}
+
+		};
+
+	}
+
+	function DepthBuffer() {
+
+		var locked = false;
+
+		var currentDepthMask = null;
+		var currentDepthFunc = null;
+		var currentDepthClear = null;
+
+		return {
+
+			setTest: function ( depthTest ) {
+
+				if ( depthTest ) {
+
+					enable( gl.DEPTH_TEST );
+
+				} else {
+
+					disable( gl.DEPTH_TEST );
+
+				}
+
+			},
+
+			setMask: function ( depthMask ) {
+
+				if ( currentDepthMask !== depthMask && ! locked ) {
+
+					gl.depthMask( depthMask );
+					currentDepthMask = depthMask;
+
+				}
+
+			},
+
+			setFunc: function ( depthFunc ) {
+
+				if ( currentDepthFunc !== depthFunc ) {
+
+					if ( depthFunc ) {
+
+						switch ( depthFunc ) {
+
+							case NeverDepth:
+
+								gl.depthFunc( gl.NEVER );
+								break;
+
+							case AlwaysDepth:
+
+								gl.depthFunc( gl.ALWAYS );
+								break;
+
+							case LessDepth:
+
+								gl.depthFunc( gl.LESS );
+								break;
+
+							case LessEqualDepth:
+
+								gl.depthFunc( gl.LEQUAL );
+								break;
+
+							case EqualDepth:
+
+								gl.depthFunc( gl.EQUAL );
+								break;
+
+							case GreaterEqualDepth:
+
+								gl.depthFunc( gl.GEQUAL );
+								break;
+
+							case GreaterDepth:
+
+								gl.depthFunc( gl.GREATER );
+								break;
+
+							case NotEqualDepth:
+
+								gl.depthFunc( gl.NOTEQUAL );
+								break;
+
+							default:
+
+								gl.depthFunc( gl.LEQUAL );
+
+						}
+
+					} else {
+
+						gl.depthFunc( gl.LEQUAL );
+
+					}
+
+					currentDepthFunc = depthFunc;
+
+				}
+
+			},
+
+			setLocked: function ( lock ) {
+
+				locked = lock;
+
+			},
+
+			setClear: function ( depth ) {
+
+				if ( currentDepthClear !== depth ) {
+
+					gl.clearDepth( depth );
+					currentDepthClear = depth;
+
+				}
+
+			},
+
+			reset: function () {
+
+				locked = false;
+
+				currentDepthMask = null;
+				currentDepthFunc = null;
+				currentDepthClear = null;
+
+			}
+
+		};
+
+	}
+
+	function StencilBuffer() {
+
+		var locked = false;
+
+		var currentStencilMask = null;
+		var currentStencilFunc = null;
+		var currentStencilRef = null;
+		var currentStencilFuncMask = null;
+		var currentStencilFail = null;
+		var currentStencilZFail = null;
+		var currentStencilZPass = null;
+		var currentStencilClear = null;
+
+		return {
+
+			setTest: function ( stencilTest ) {
+
+				if ( stencilTest ) {
+
+					enable( gl.STENCIL_TEST );
+
+				} else {
+
+					disable( gl.STENCIL_TEST );
+
+				}
+
+			},
+
+			setMask: function ( stencilMask ) {
+
+				if ( currentStencilMask !== stencilMask && ! locked ) {
+
+					gl.stencilMask( stencilMask );
+					currentStencilMask = stencilMask;
+
+				}
+
+			},
+
+			setFunc: function ( stencilFunc, stencilRef, stencilMask ) {
+
+				if ( currentStencilFunc !== stencilFunc ||
+				     currentStencilRef 	!== stencilRef 	||
+				     currentStencilFuncMask !== stencilMask ) {
+
+					gl.stencilFunc( stencilFunc, stencilRef, stencilMask );
+
+					currentStencilFunc = stencilFunc;
+					currentStencilRef = stencilRef;
+					currentStencilFuncMask = stencilMask;
+
+				}
+
+			},
+
+			setOp: function ( stencilFail, stencilZFail, stencilZPass ) {
+
+				if ( currentStencilFail	 !== stencilFail 	||
+				     currentStencilZFail !== stencilZFail ||
+				     currentStencilZPass !== stencilZPass ) {
+
+					gl.stencilOp( stencilFail, stencilZFail, stencilZPass );
+
+					currentStencilFail = stencilFail;
+					currentStencilZFail = stencilZFail;
+					currentStencilZPass = stencilZPass;
+
+				}
+
+			},
+
+			setLocked: function ( lock ) {
+
+				locked = lock;
+
+			},
+
+			setClear: function ( stencil ) {
+
+				if ( currentStencilClear !== stencil ) {
+
+					gl.clearStencil( stencil );
+					currentStencilClear = stencil;
+
+				}
+
+			},
+
+			reset: function () {
+
+				locked = false;
+
+				currentStencilMask = null;
+				currentStencilFunc = null;
+				currentStencilRef = null;
+				currentStencilFuncMask = null;
+				currentStencilFail = null;
+				currentStencilZFail = null;
+				currentStencilZPass = null;
+				currentStencilClear = null;
+
+			}
+
+		};
+
+	}
+
+	//
+
+	var colorBuffer = new ColorBuffer();
+	var depthBuffer = new DepthBuffer();
+	var stencilBuffer = new StencilBuffer();
+
+	var maxVertexAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
+	var newAttributes = new Uint8Array( maxVertexAttributes );
+	var enabledAttributes = new Uint8Array( maxVertexAttributes );
+	var attributeDivisors = new Uint8Array( maxVertexAttributes );
+
+	var capabilities = {};
+
+	var compressedTextureFormats = null;
+
+	var currentProgram = null;
+
+	var currentBlending = null;
+	var currentBlendEquation = null;
+	var currentBlendSrc = null;
+	var currentBlendDst = null;
+	var currentBlendEquationAlpha = null;
+	var currentBlendSrcAlpha = null;
+	var currentBlendDstAlpha = null;
+	var currentPremultipledAlpha = false;
+
+	var currentFlipSided = null;
+	var currentCullFace = null;
+
+	var currentLineWidth = null;
+
+	var currentPolygonOffsetFactor = null;
+	var currentPolygonOffsetUnits = null;
+
+	var maxTextures = gl.getParameter( gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS );
+
+	var version = parseFloat( /^WebGL\ ([0-9])/.exec( gl.getParameter( gl.VERSION ) )[ 1 ] );
+	var lineWidthAvailable = parseFloat( version ) >= 1.0;
+
+	var currentTextureSlot = null;
+	var currentBoundTextures = {};
+
+	var currentScissor = new Vector4();
+	var currentViewport = new Vector4();
+
+	function createTexture( type, target, count ) {
+
+		var data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.
+		var texture = gl.createTexture();
+
+		gl.bindTexture( type, texture );
+		gl.texParameteri( type, gl.TEXTURE_MIN_FILTER, gl.NEAREST );
+		gl.texParameteri( type, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
+
+		for ( var i = 0; i < count; i ++ ) {
+
+			gl.texImage2D( target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data );
+
+		}
+
+		return texture;
+
+	}
+
+	var emptyTextures = {};
+	emptyTextures[ gl.TEXTURE_2D ] = createTexture( gl.TEXTURE_2D, gl.TEXTURE_2D, 1 );
+	emptyTextures[ gl.TEXTURE_CUBE_MAP ] = createTexture( gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6 );
+
+	// init
+
+	colorBuffer.setClear( 0, 0, 0, 1 );
+	depthBuffer.setClear( 1 );
+	stencilBuffer.setClear( 0 );
+
+	enable( gl.DEPTH_TEST );
+	depthBuffer.setFunc( LessEqualDepth );
+
+	setFlipSided( false );
+	setCullFace( CullFaceBack );
+	enable( gl.CULL_FACE );
+
+	enable( gl.BLEND );
+	setBlending( NormalBlending );
+
+	//
+
+	function initAttributes() {
+
+		for ( var i = 0, l = newAttributes.length; i < l; i ++ ) {
+
+			newAttributes[ i ] = 0;
+
+		}
+
+	}
+
+	function enableAttribute( attribute ) {
+
+		newAttributes[ attribute ] = 1;
+
+		if ( enabledAttributes[ attribute ] === 0 ) {
+
+			gl.enableVertexAttribArray( attribute );
+			enabledAttributes[ attribute ] = 1;
+
+		}
+
+		if ( attributeDivisors[ attribute ] !== 0 ) {
+
+			var extension = extensions.get( 'ANGLE_instanced_arrays' );
+
+			extension.vertexAttribDivisorANGLE( attribute, 0 );
+			attributeDivisors[ attribute ] = 0;
+
+		}
+
+	}
+
+	function enableAttributeAndDivisor( attribute, meshPerAttribute ) {
+
+		newAttributes[ attribute ] = 1;
+
+		if ( enabledAttributes[ attribute ] === 0 ) {
+
+			gl.enableVertexAttribArray( attribute );
+			enabledAttributes[ attribute ] = 1;
+
+		}
+
+		if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {
+
+			var extension = extensions.get( 'ANGLE_instanced_arrays' );
+
+			extension.vertexAttribDivisorANGLE( attribute, meshPerAttribute );
+			attributeDivisors[ attribute ] = meshPerAttribute;
+
+		}
+
+	}
+
+	function disableUnusedAttributes() {
+
+		for ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {
+
+			if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {
+
+				gl.disableVertexAttribArray( i );
+				enabledAttributes[ i ] = 0;
+
+			}
+
+		}
+
+	}
+
+	function enable( id ) {
+
+		if ( capabilities[ id ] !== true ) {
+
+			gl.enable( id );
+			capabilities[ id ] = true;
+
+		}
+
+	}
+
+	function disable( id ) {
+
+		if ( capabilities[ id ] !== false ) {
+
+			gl.disable( id );
+			capabilities[ id ] = false;
+
+		}
+
+	}
+
+	function getCompressedTextureFormats() {
+
+		if ( compressedTextureFormats === null ) {
+
+			compressedTextureFormats = [];
+
+			if ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||
+			     extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||
+			     extensions.get( 'WEBGL_compressed_texture_etc1' ) ) {
+
+				var formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS );
+
+				for ( var i = 0; i < formats.length; i ++ ) {
+
+					compressedTextureFormats.push( formats[ i ] );
+
+				}
+
+			}
+
+		}
+
+		return compressedTextureFormats;
+
+	}
+
+	function useProgram( program ) {
+
+		if ( currentProgram !== program ) {
+
+			gl.useProgram( program );
+
+			currentProgram = program;
+
+			return true;
+
+		}
+
+		return false;
+
+	}
+
+	function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {
+
+		if ( blending !== NoBlending ) {
+
+			enable( gl.BLEND );
+
+		} else {
+
+			disable( gl.BLEND );
+
+		}
+
+		if ( blending !== CustomBlending ) {
+
+			if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {
+
+				switch ( blending ) {
+
+					case AdditiveBlending:
+
+						if ( premultipliedAlpha ) {
+
+							gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
+							gl.blendFuncSeparate( gl.ONE, gl.ONE, gl.ONE, gl.ONE );
+
+						} else {
+
+							gl.blendEquation( gl.FUNC_ADD );
+							gl.blendFunc( gl.SRC_ALPHA, gl.ONE );
+
+						}
+						break;
+
+					case SubtractiveBlending:
+
+						if ( premultipliedAlpha ) {
+
+							gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
+							gl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ONE_MINUS_SRC_ALPHA );
+
+						} else {
+
+							gl.blendEquation( gl.FUNC_ADD );
+							gl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR );
+
+						}
+						break;
+
+					case MultiplyBlending:
+
+						if ( premultipliedAlpha ) {
+
+							gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
+							gl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );
+
+						} else {
+
+							gl.blendEquation( gl.FUNC_ADD );
+							gl.blendFunc( gl.ZERO, gl.SRC_COLOR );
+
+						}
+						break;
+
+					default:
+
+						if ( premultipliedAlpha ) {
+
+							gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
+							gl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
+
+						} else {
+
+							gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
+							gl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
+
+						}
+
+				}
+
+			}
+
+			currentBlendEquation = null;
+			currentBlendSrc = null;
+			currentBlendDst = null;
+			currentBlendEquationAlpha = null;
+			currentBlendSrcAlpha = null;
+			currentBlendDstAlpha = null;
+
+		} else {
+
+			blendEquationAlpha = blendEquationAlpha || blendEquation;
+			blendSrcAlpha = blendSrcAlpha || blendSrc;
+			blendDstAlpha = blendDstAlpha || blendDst;
+
+			if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {
+
+				gl.blendEquationSeparate( utils.convert( blendEquation ), utils.convert( blendEquationAlpha ) );
+
+				currentBlendEquation = blendEquation;
+				currentBlendEquationAlpha = blendEquationAlpha;
+
+			}
+
+			if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {
+
+				gl.blendFuncSeparate( utils.convert( blendSrc ), utils.convert( blendDst ), utils.convert( blendSrcAlpha ), utils.convert( blendDstAlpha ) );
+
+				currentBlendSrc = blendSrc;
+				currentBlendDst = blendDst;
+				currentBlendSrcAlpha = blendSrcAlpha;
+				currentBlendDstAlpha = blendDstAlpha;
+
+			}
+
+		}
+
+		currentBlending = blending;
+		currentPremultipledAlpha = premultipliedAlpha;
+
+	}
+
+	function setMaterial( material ) {
+
+		material.side === DoubleSide
+			? disable( gl.CULL_FACE )
+			: enable( gl.CULL_FACE );
+
+		setFlipSided( material.side === BackSide );
+
+		material.transparent === true
+			? setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha )
+			: setBlending( NoBlending );
+
+		depthBuffer.setFunc( material.depthFunc );
+		depthBuffer.setTest( material.depthTest );
+		depthBuffer.setMask( material.depthWrite );
+		colorBuffer.setMask( material.colorWrite );
+
+		setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );
+
+	}
+
+	//
+
+	function setFlipSided( flipSided ) {
+
+		if ( currentFlipSided !== flipSided ) {
+
+			if ( flipSided ) {
+
+				gl.frontFace( gl.CW );
+
+			} else {
+
+				gl.frontFace( gl.CCW );
+
+			}
+
+			currentFlipSided = flipSided;
+
+		}
+
+	}
+
+	function setCullFace( cullFace ) {
+
+		if ( cullFace !== CullFaceNone ) {
+
+			enable( gl.CULL_FACE );
+
+			if ( cullFace !== currentCullFace ) {
+
+				if ( cullFace === CullFaceBack ) {
+
+					gl.cullFace( gl.BACK );
+
+				} else if ( cullFace === CullFaceFront ) {
+
+					gl.cullFace( gl.FRONT );
+
+				} else {
+
+					gl.cullFace( gl.FRONT_AND_BACK );
+
+				}
+
+			}
+
+		} else {
+
+			disable( gl.CULL_FACE );
+
+		}
+
+		currentCullFace = cullFace;
+
+	}
+
+	function setLineWidth( width ) {
+
+		if ( width !== currentLineWidth ) {
+
+			if ( lineWidthAvailable ) gl.lineWidth( width );
+
+			currentLineWidth = width;
+
+		}
+
+	}
+
+	function setPolygonOffset( polygonOffset, factor, units ) {
+
+		if ( polygonOffset ) {
+
+			enable( gl.POLYGON_OFFSET_FILL );
+
+			if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {
+
+				gl.polygonOffset( factor, units );
+
+				currentPolygonOffsetFactor = factor;
+				currentPolygonOffsetUnits = units;
+
+			}
+
+		} else {
+
+			disable( gl.POLYGON_OFFSET_FILL );
+
+		}
+
+	}
+
+	function setScissorTest( scissorTest ) {
+
+		if ( scissorTest ) {
+
+			enable( gl.SCISSOR_TEST );
+
+		} else {
+
+			disable( gl.SCISSOR_TEST );
+
+		}
+
+	}
+
+	// texture
+
+	function activeTexture( webglSlot ) {
+
+		if ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;
+
+		if ( currentTextureSlot !== webglSlot ) {
+
+			gl.activeTexture( webglSlot );
+			currentTextureSlot = webglSlot;
+
+		}
+
+	}
+
+	function bindTexture( webglType, webglTexture ) {
+
+		if ( currentTextureSlot === null ) {
+
+			activeTexture();
+
+		}
+
+		var boundTexture = currentBoundTextures[ currentTextureSlot ];
+
+		if ( boundTexture === undefined ) {
+
+			boundTexture = { type: undefined, texture: undefined };
+			currentBoundTextures[ currentTextureSlot ] = boundTexture;
+
+		}
+
+		if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {
+
+			gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );
+
+			boundTexture.type = webglType;
+			boundTexture.texture = webglTexture;
+
+		}
+
+	}
+
+	function compressedTexImage2D() {
+
+		try {
+
+			gl.compressedTexImage2D.apply( gl, arguments );
+
+		} catch ( error ) {
+
+			console.error( 'THREE.WebGLState:', error );
+
+		}
+
+	}
+
+	function texImage2D() {
+
+		try {
+
+			gl.texImage2D.apply( gl, arguments );
+
+		} catch ( error ) {
+
+			console.error( 'THREE.WebGLState:', error );
+
+		}
+
+	}
+
+	//
+
+	function scissor( scissor ) {
+
+		if ( currentScissor.equals( scissor ) === false ) {
+
+			gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
+			currentScissor.copy( scissor );
+
+		}
+
+	}
+
+	function viewport( viewport ) {
+
+		if ( currentViewport.equals( viewport ) === false ) {
+
+			gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
+			currentViewport.copy( viewport );
+
+		}
+
+	}
+
+	//
+
+	function reset() {
+
+		for ( var i = 0; i < enabledAttributes.length; i ++ ) {
+
+			if ( enabledAttributes[ i ] === 1 ) {
+
+				gl.disableVertexAttribArray( i );
+				enabledAttributes[ i ] = 0;
+
+			}
+
+		}
+
+		capabilities = {};
+
+		compressedTextureFormats = null;
+
+		currentTextureSlot = null;
+		currentBoundTextures = {};
+
+		currentProgram = null;
+
+		currentBlending = null;
+
+		currentFlipSided = null;
+		currentCullFace = null;
+
+		colorBuffer.reset();
+		depthBuffer.reset();
+		stencilBuffer.reset();
+
+	}
+
+	return {
+
+		buffers: {
+			color: colorBuffer,
+			depth: depthBuffer,
+			stencil: stencilBuffer
+		},
+
+		initAttributes: initAttributes,
+		enableAttribute: enableAttribute,
+		enableAttributeAndDivisor: enableAttributeAndDivisor,
+		disableUnusedAttributes: disableUnusedAttributes,
+		enable: enable,
+		disable: disable,
+		getCompressedTextureFormats: getCompressedTextureFormats,
+
+		useProgram: useProgram,
+
+		setBlending: setBlending,
+		setMaterial: setMaterial,
+
+		setFlipSided: setFlipSided,
+		setCullFace: setCullFace,
+
+		setLineWidth: setLineWidth,
+		setPolygonOffset: setPolygonOffset,
+
+		setScissorTest: setScissorTest,
+
+		activeTexture: activeTexture,
+		bindTexture: bindTexture,
+		compressedTexImage2D: compressedTexImage2D,
+		texImage2D: texImage2D,
+
+		scissor: scissor,
+		viewport: viewport,
+
+		reset: reset
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLCapabilities( gl, extensions, parameters ) {
+
+	var maxAnisotropy;
+
+	function getMaxAnisotropy() {
+
+		if ( maxAnisotropy !== undefined ) return maxAnisotropy;
+
+		var extension = extensions.get( 'EXT_texture_filter_anisotropic' );
+
+		if ( extension !== null ) {
+
+			maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );
+
+		} else {
+
+			maxAnisotropy = 0;
+
+		}
+
+		return maxAnisotropy;
+
+	}
+
+	function getMaxPrecision( precision ) {
+
+		if ( precision === 'highp' ) {
+
+			if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 &&
+			     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) {
+
+				return 'highp';
+
+			}
+
+			precision = 'mediump';
+
+		}
+
+		if ( precision === 'mediump' ) {
+
+			if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 &&
+			     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) {
+
+				return 'mediump';
+
+			}
+
+		}
+
+		return 'lowp';
+
+	}
+
+	var precision = parameters.precision !== undefined ? parameters.precision : 'highp';
+	var maxPrecision = getMaxPrecision( precision );
+
+	if ( maxPrecision !== precision ) {
+
+		console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );
+		precision = maxPrecision;
+
+	}
+
+	var logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;
+
+	var maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );
+	var maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS );
+	var maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE );
+	var maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE );
+
+	var maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
+	var maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS );
+	var maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS );
+	var maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS );
+
+	var vertexTextures = maxVertexTextures > 0;
+	var floatFragmentTextures = !! extensions.get( 'OES_texture_float' );
+	var floatVertexTextures = vertexTextures && floatFragmentTextures;
+
+	return {
+
+		getMaxAnisotropy: getMaxAnisotropy,
+		getMaxPrecision: getMaxPrecision,
+
+		precision: precision,
+		logarithmicDepthBuffer: logarithmicDepthBuffer,
+
+		maxTextures: maxTextures,
+		maxVertexTextures: maxVertexTextures,
+		maxTextureSize: maxTextureSize,
+		maxCubemapSize: maxCubemapSize,
+
+		maxAttributes: maxAttributes,
+		maxVertexUniforms: maxVertexUniforms,
+		maxVaryings: maxVaryings,
+		maxFragmentUniforms: maxFragmentUniforms,
+
+		vertexTextures: vertexTextures,
+		floatFragmentTextures: floatFragmentTextures,
+		floatVertexTextures: floatVertexTextures
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author greggman / http://games.greggman.com/
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ * @author tschw
+ */
+
+function PerspectiveCamera( fov, aspect, near, far ) {
+
+	Camera.call( this );
+
+	this.type = 'PerspectiveCamera';
+
+	this.fov = fov !== undefined ? fov : 50;
+	this.zoom = 1;
+
+	this.near = near !== undefined ? near : 0.1;
+	this.far = far !== undefined ? far : 2000;
+	this.focus = 10;
+
+	this.aspect = aspect !== undefined ? aspect : 1;
+	this.view = null;
+
+	this.filmGauge = 35;	// width of the film (default in millimeters)
+	this.filmOffset = 0;	// horizontal film offset (same unit as gauge)
+
+	this.updateProjectionMatrix();
+
+}
+
+PerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {
+
+	constructor: PerspectiveCamera,
+
+	isPerspectiveCamera: true,
+
+	copy: function ( source, recursive ) {
+
+		Camera.prototype.copy.call( this, source, recursive );
+
+		this.fov = source.fov;
+		this.zoom = source.zoom;
+
+		this.near = source.near;
+		this.far = source.far;
+		this.focus = source.focus;
+
+		this.aspect = source.aspect;
+		this.view = source.view === null ? null : Object.assign( {}, source.view );
+
+		this.filmGauge = source.filmGauge;
+		this.filmOffset = source.filmOffset;
+
+		return this;
+
+	},
+
+	/**
+	 * Sets the FOV by focal length in respect to the current .filmGauge.
+	 *
+	 * The default film gauge is 35, so that the focal length can be specified for
+	 * a 35mm (full frame) camera.
+	 *
+	 * Values for focal length and film gauge must have the same unit.
+	 */
+	setFocalLength: function ( focalLength ) {
+
+		// see http://www.bobatkins.com/photography/technical/field_of_view.html
+		var vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;
+
+		this.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );
+		this.updateProjectionMatrix();
+
+	},
+
+	/**
+	 * Calculates the focal length from the current .fov and .filmGauge.
+	 */
+	getFocalLength: function () {
+
+		var vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );
+
+		return 0.5 * this.getFilmHeight() / vExtentSlope;
+
+	},
+
+	getEffectiveFOV: function () {
+
+		return _Math.RAD2DEG * 2 * Math.atan(
+			Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );
+
+	},
+
+	getFilmWidth: function () {
+
+		// film not completely covered in portrait format (aspect < 1)
+		return this.filmGauge * Math.min( this.aspect, 1 );
+
+	},
+
+	getFilmHeight: function () {
+
+		// film not completely covered in landscape format (aspect > 1)
+		return this.filmGauge / Math.max( this.aspect, 1 );
+
+	},
+
+	/**
+	 * Sets an offset in a larger frustum. This is useful for multi-window or
+	 * multi-monitor/multi-machine setups.
+	 *
+	 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
+	 * the monitors are in grid like this
+	 *
+	 *   +---+---+---+
+	 *   | A | B | C |
+	 *   +---+---+---+
+	 *   | D | E | F |
+	 *   +---+---+---+
+	 *
+	 * then for each monitor you would call it like this
+	 *
+	 *   var w = 1920;
+	 *   var h = 1080;
+	 *   var fullWidth = w * 3;
+	 *   var fullHeight = h * 2;
+	 *
+	 *   --A--
+	 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
+	 *   --B--
+	 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
+	 *   --C--
+	 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
+	 *   --D--
+	 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
+	 *   --E--
+	 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
+	 *   --F--
+	 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
+	 *
+	 *   Note there is no reason monitors have to be the same size or in a grid.
+	 */
+	setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {
+
+		this.aspect = fullWidth / fullHeight;
+
+		if ( this.view === null ) {
+
+			this.view = {
+				enabled: true,
+				fullWidth: 1,
+				fullHeight: 1,
+				offsetX: 0,
+				offsetY: 0,
+				width: 1,
+				height: 1
+			};
+
+		}
+
+		this.view.enabled = true;
+		this.view.fullWidth = fullWidth;
+		this.view.fullHeight = fullHeight;
+		this.view.offsetX = x;
+		this.view.offsetY = y;
+		this.view.width = width;
+		this.view.height = height;
+
+		this.updateProjectionMatrix();
+
+	},
+
+	clearViewOffset: function () {
+
+		if ( this.view !== null ) {
+
+			this.view.enabled = false;
+
+		}
+
+		this.updateProjectionMatrix();
+
+	},
+
+	updateProjectionMatrix: function () {
+
+		var near = this.near,
+			top = near * Math.tan(
+				_Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,
+			height = 2 * top,
+			width = this.aspect * height,
+			left = - 0.5 * width,
+			view = this.view;
+
+		if ( this.view !== null && this.view.enabled ) {
+
+			var fullWidth = view.fullWidth,
+				fullHeight = view.fullHeight;
+
+			left += view.offsetX * width / fullWidth;
+			top -= view.offsetY * height / fullHeight;
+			width *= view.width / fullWidth;
+			height *= view.height / fullHeight;
+
+		}
+
+		var skew = this.filmOffset;
+		if ( skew !== 0 ) left += near * skew / this.getFilmWidth();
+
+		this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );
+
+	},
+
+	toJSON: function ( meta ) {
+
+		var data = Object3D.prototype.toJSON.call( this, meta );
+
+		data.object.fov = this.fov;
+		data.object.zoom = this.zoom;
+
+		data.object.near = this.near;
+		data.object.far = this.far;
+		data.object.focus = this.focus;
+
+		data.object.aspect = this.aspect;
+
+		if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );
+
+		data.object.filmGauge = this.filmGauge;
+		data.object.filmOffset = this.filmOffset;
+
+		return data;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function ArrayCamera( array ) {
+
+	PerspectiveCamera.call( this );
+
+	this.cameras = array || [];
+
+}
+
+ArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), {
+
+	constructor: ArrayCamera,
+
+	isArrayCamera: true
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebVRManager( renderer ) {
+
+	var scope = this;
+
+	var device = null;
+	var frameData = null;
+
+	if ( typeof window !== 'undefined' && 'VRFrameData' in window ) {
+
+		frameData = new window.VRFrameData();
+
+	}
+
+	var matrixWorldInverse = new Matrix4();
+
+	var standingMatrix = new Matrix4();
+	var standingMatrixInverse = new Matrix4();
+
+	var cameraL = new PerspectiveCamera();
+	cameraL.bounds = new Vector4( 0.0, 0.0, 0.5, 1.0 );
+	cameraL.layers.enable( 1 );
+
+	var cameraR = new PerspectiveCamera();
+	cameraR.bounds = new Vector4( 0.5, 0.0, 0.5, 1.0 );
+	cameraR.layers.enable( 2 );
+
+	var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
+	cameraVR.layers.enable( 1 );
+	cameraVR.layers.enable( 2 );
+
+	//
+
+	var currentSize, currentPixelRatio;
+
+	function onVRDisplayPresentChange() {
+
+		if ( device !== null && device.isPresenting ) {
+
+			var eyeParameters = device.getEyeParameters( 'left' );
+			var renderWidth = eyeParameters.renderWidth;
+			var renderHeight = eyeParameters.renderHeight;
+
+			currentPixelRatio = renderer.getPixelRatio();
+			currentSize = renderer.getSize();
+
+			renderer.setDrawingBufferSize( renderWidth * 2, renderHeight, 1 );
+
+		} else if ( scope.enabled ) {
+
+			renderer.setDrawingBufferSize( currentSize.width, currentSize.height, currentPixelRatio );
+
+		}
+
+	}
+
+	if ( typeof window !== 'undefined' ) {
+
+		window.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );
+
+	}
+
+	//
+
+	this.enabled = false;
+	this.standing = false;
+
+	this.getDevice = function () {
+
+		return device;
+
+	};
+
+	this.setDevice = function ( value ) {
+
+		if ( value !== undefined ) device = value;
+
+	};
+
+	this.getCamera = function ( camera ) {
+
+		if ( device === null ) return camera;
+
+		device.depthNear = camera.near;
+		device.depthFar = camera.far;
+
+		device.getFrameData( frameData );
+
+		//
+
+		var pose = frameData.pose;
+
+		if ( pose.position !== null ) {
+
+			camera.position.fromArray( pose.position );
+
+		} else {
+
+			camera.position.set( 0, 0, 0 );
+
+		}
+
+		if ( pose.orientation !== null ) {
+
+			camera.quaternion.fromArray( pose.orientation );
+
+		}
+
+		camera.updateMatrixWorld();
+
+		var stageParameters = device.stageParameters;
+
+		if ( this.standing && stageParameters ) {
+
+			standingMatrix.fromArray( stageParameters.sittingToStandingTransform );
+			standingMatrixInverse.getInverse( standingMatrix );
+
+			camera.matrixWorld.multiply( standingMatrix );
+			camera.matrixWorldInverse.multiply( standingMatrixInverse );
+
+		}
+
+		if ( device.isPresenting === false ) return camera;
+
+		//
+
+		cameraL.near = camera.near;
+		cameraR.near = camera.near;
+
+		cameraL.far = camera.far;
+		cameraR.far = camera.far;
+
+		cameraVR.matrixWorld.copy( camera.matrixWorld );
+		cameraVR.matrixWorldInverse.copy( camera.matrixWorldInverse );
+
+		cameraL.matrixWorldInverse.fromArray( frameData.leftViewMatrix );
+		cameraR.matrixWorldInverse.fromArray( frameData.rightViewMatrix );
+
+		if ( this.standing && stageParameters ) {
+
+			cameraL.matrixWorldInverse.multiply( standingMatrixInverse );
+			cameraR.matrixWorldInverse.multiply( standingMatrixInverse );
+
+		}
+
+		var parent = camera.parent;
+
+		if ( parent !== null ) {
+
+			matrixWorldInverse.getInverse( parent.matrixWorld );
+
+			cameraL.matrixWorldInverse.multiply( matrixWorldInverse );
+			cameraR.matrixWorldInverse.multiply( matrixWorldInverse );
+
+		}
+
+		// envMap and Mirror needs camera.matrixWorld
+
+		cameraL.matrixWorld.getInverse( cameraL.matrixWorldInverse );
+		cameraR.matrixWorld.getInverse( cameraR.matrixWorldInverse );
+
+		cameraL.projectionMatrix.fromArray( frameData.leftProjectionMatrix );
+		cameraR.projectionMatrix.fromArray( frameData.rightProjectionMatrix );
+
+		// HACK @mrdoob
+		// https://github.com/w3c/webvr/issues/203
+
+		cameraVR.projectionMatrix.copy( cameraL.projectionMatrix );
+
+		//
+
+		var layers = device.getLayers();
+
+		if ( layers.length ) {
+
+			var layer = layers[ 0 ];
+
+			if ( layer.leftBounds !== null && layer.leftBounds.length === 4 ) {
+
+				cameraL.bounds.fromArray( layer.leftBounds );
+
+			}
+
+			if ( layer.rightBounds !== null && layer.rightBounds.length === 4 ) {
+
+				cameraR.bounds.fromArray( layer.rightBounds );
+
+			}
+
+		}
+
+		return cameraVR;
+
+	};
+
+	this.getStandingMatrix = function () {
+
+		return standingMatrix;
+
+	};
+
+	this.submitFrame = function () {
+
+		if ( device && device.isPresenting ) device.submitFrame();
+
+	};
+
+	this.dispose = function () {
+
+		if ( typeof window !== 'undefined' ) {
+
+			window.removeEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange );
+
+		}
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function WebGLExtensions( gl ) {
+
+	var extensions = {};
+
+	return {
+
+		get: function ( name ) {
+
+			if ( extensions[ name ] !== undefined ) {
+
+				return extensions[ name ];
+
+			}
+
+			var extension;
+
+			switch ( name ) {
+
+				case 'WEBGL_depth_texture':
+					extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );
+					break;
+
+				case 'EXT_texture_filter_anisotropic':
+					extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
+					break;
+
+				case 'WEBGL_compressed_texture_s3tc':
+					extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
+					break;
+
+				case 'WEBGL_compressed_texture_pvrtc':
+					extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
+					break;
+
+				case 'WEBGL_compressed_texture_etc1':
+					extension = gl.getExtension( 'WEBGL_compressed_texture_etc1' );
+					break;
+
+				default:
+					extension = gl.getExtension( name );
+
+			}
+
+			if ( extension === null ) {
+
+				console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );
+
+			}
+
+			extensions[ name ] = extension;
+
+			return extension;
+
+		}
+
+	};
+
+}
+
+/**
+ * @author tschw
+ */
+
+function WebGLClipping() {
+
+	var scope = this,
+
+		globalState = null,
+		numGlobalPlanes = 0,
+		localClippingEnabled = false,
+		renderingShadows = false,
+
+		plane = new Plane(),
+		viewNormalMatrix = new Matrix3(),
+
+		uniform = { value: null, needsUpdate: false };
+
+	this.uniform = uniform;
+	this.numPlanes = 0;
+	this.numIntersection = 0;
+
+	this.init = function ( planes, enableLocalClipping, camera ) {
+
+		var enabled =
+			planes.length !== 0 ||
+			enableLocalClipping ||
+			// enable state of previous frame - the clipping code has to
+			// run another frame in order to reset the state:
+			numGlobalPlanes !== 0 ||
+			localClippingEnabled;
+
+		localClippingEnabled = enableLocalClipping;
+
+		globalState = projectPlanes( planes, camera, 0 );
+		numGlobalPlanes = planes.length;
+
+		return enabled;
+
+	};
+
+	this.beginShadows = function () {
+
+		renderingShadows = true;
+		projectPlanes( null );
+
+	};
+
+	this.endShadows = function () {
+
+		renderingShadows = false;
+		resetGlobalState();
+
+	};
+
+	this.setState = function ( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {
+
+		if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {
+
+			// there's no local clipping
+
+			if ( renderingShadows ) {
+
+				// there's no global clipping
+
+				projectPlanes( null );
+
+			} else {
+
+				resetGlobalState();
+
+			}
+
+		} else {
+
+			var nGlobal = renderingShadows ? 0 : numGlobalPlanes,
+				lGlobal = nGlobal * 4,
+
+				dstArray = cache.clippingState || null;
+
+			uniform.value = dstArray; // ensure unique state
+
+			dstArray = projectPlanes( planes, camera, lGlobal, fromCache );
+
+			for ( var i = 0; i !== lGlobal; ++ i ) {
+
+				dstArray[ i ] = globalState[ i ];
+
+			}
+
+			cache.clippingState = dstArray;
+			this.numIntersection = clipIntersection ? this.numPlanes : 0;
+			this.numPlanes += nGlobal;
+
+		}
+
+
+	};
+
+	function resetGlobalState() {
+
+		if ( uniform.value !== globalState ) {
+
+			uniform.value = globalState;
+			uniform.needsUpdate = numGlobalPlanes > 0;
+
+		}
+
+		scope.numPlanes = numGlobalPlanes;
+		scope.numIntersection = 0;
+
+	}
+
+	function projectPlanes( planes, camera, dstOffset, skipTransform ) {
+
+		var nPlanes = planes !== null ? planes.length : 0,
+			dstArray = null;
+
+		if ( nPlanes !== 0 ) {
+
+			dstArray = uniform.value;
+
+			if ( skipTransform !== true || dstArray === null ) {
+
+				var flatSize = dstOffset + nPlanes * 4,
+					viewMatrix = camera.matrixWorldInverse;
+
+				viewNormalMatrix.getNormalMatrix( viewMatrix );
+
+				if ( dstArray === null || dstArray.length < flatSize ) {
+
+					dstArray = new Float32Array( flatSize );
+
+				}
+
+				for ( var i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {
+
+					plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );
+
+					plane.normal.toArray( dstArray, i4 );
+					dstArray[ i4 + 3 ] = plane.constant;
+
+				}
+
+			}
+
+			uniform.value = dstArray;
+			uniform.needsUpdate = true;
+
+		}
+
+		scope.numPlanes = nPlanes;
+
+		return dstArray;
+
+	}
+
+}
+
+/**
+ * @author thespite / http://www.twitter.com/thespite
+ */
+
+function WebGLUtils( gl, extensions ) {
+
+	function convert( p ) {
+
+		var extension;
+
+		if ( p === RepeatWrapping ) return gl.REPEAT;
+		if ( p === ClampToEdgeWrapping ) return gl.CLAMP_TO_EDGE;
+		if ( p === MirroredRepeatWrapping ) return gl.MIRRORED_REPEAT;
+
+		if ( p === NearestFilter ) return gl.NEAREST;
+		if ( p === NearestMipMapNearestFilter ) return gl.NEAREST_MIPMAP_NEAREST;
+		if ( p === NearestMipMapLinearFilter ) return gl.NEAREST_MIPMAP_LINEAR;
+
+		if ( p === LinearFilter ) return gl.LINEAR;
+		if ( p === LinearMipMapNearestFilter ) return gl.LINEAR_MIPMAP_NEAREST;
+		if ( p === LinearMipMapLinearFilter ) return gl.LINEAR_MIPMAP_LINEAR;
+
+		if ( p === UnsignedByteType ) return gl.UNSIGNED_BYTE;
+		if ( p === UnsignedShort4444Type ) return gl.UNSIGNED_SHORT_4_4_4_4;
+		if ( p === UnsignedShort5551Type ) return gl.UNSIGNED_SHORT_5_5_5_1;
+		if ( p === UnsignedShort565Type ) return gl.UNSIGNED_SHORT_5_6_5;
+
+		if ( p === ByteType ) return gl.BYTE;
+		if ( p === ShortType ) return gl.SHORT;
+		if ( p === UnsignedShortType ) return gl.UNSIGNED_SHORT;
+		if ( p === IntType ) return gl.INT;
+		if ( p === UnsignedIntType ) return gl.UNSIGNED_INT;
+		if ( p === FloatType ) return gl.FLOAT;
+
+		if ( p === HalfFloatType ) {
+
+			extension = extensions.get( 'OES_texture_half_float' );
+
+			if ( extension !== null ) return extension.HALF_FLOAT_OES;
+
+		}
+
+		if ( p === AlphaFormat ) return gl.ALPHA;
+		if ( p === RGBFormat ) return gl.RGB;
+		if ( p === RGBAFormat ) return gl.RGBA;
+		if ( p === LuminanceFormat ) return gl.LUMINANCE;
+		if ( p === LuminanceAlphaFormat ) return gl.LUMINANCE_ALPHA;
+		if ( p === DepthFormat ) return gl.DEPTH_COMPONENT;
+		if ( p === DepthStencilFormat ) return gl.DEPTH_STENCIL;
+
+		if ( p === AddEquation ) return gl.FUNC_ADD;
+		if ( p === SubtractEquation ) return gl.FUNC_SUBTRACT;
+		if ( p === ReverseSubtractEquation ) return gl.FUNC_REVERSE_SUBTRACT;
+
+		if ( p === ZeroFactor ) return gl.ZERO;
+		if ( p === OneFactor ) return gl.ONE;
+		if ( p === SrcColorFactor ) return gl.SRC_COLOR;
+		if ( p === OneMinusSrcColorFactor ) return gl.ONE_MINUS_SRC_COLOR;
+		if ( p === SrcAlphaFactor ) return gl.SRC_ALPHA;
+		if ( p === OneMinusSrcAlphaFactor ) return gl.ONE_MINUS_SRC_ALPHA;
+		if ( p === DstAlphaFactor ) return gl.DST_ALPHA;
+		if ( p === OneMinusDstAlphaFactor ) return gl.ONE_MINUS_DST_ALPHA;
+
+		if ( p === DstColorFactor ) return gl.DST_COLOR;
+		if ( p === OneMinusDstColorFactor ) return gl.ONE_MINUS_DST_COLOR;
+		if ( p === SrcAlphaSaturateFactor ) return gl.SRC_ALPHA_SATURATE;
+
+		if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||
+			p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {
+
+			extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );
+
+			if ( extension !== null ) {
+
+				if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
+				if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
+				if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
+				if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
+
+			}
+
+		}
+
+		if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||
+			p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {
+
+			extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );
+
+			if ( extension !== null ) {
+
+				if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
+				if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
+				if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
+				if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
+
+			}
+
+		}
+
+		if ( p === RGB_ETC1_Format ) {
+
+			extension = extensions.get( 'WEBGL_compressed_texture_etc1' );
+
+			if ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;
+
+		}
+
+		if ( p === MinEquation || p === MaxEquation ) {
+
+			extension = extensions.get( 'EXT_blend_minmax' );
+
+			if ( extension !== null ) {
+
+				if ( p === MinEquation ) return extension.MIN_EXT;
+				if ( p === MaxEquation ) return extension.MAX_EXT;
+
+			}
+
+		}
+
+		if ( p === UnsignedInt248Type ) {
+
+			extension = extensions.get( 'WEBGL_depth_texture' );
+
+			if ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;
+
+		}
+
+		return 0;
+
+	}
+
+	return { convert: convert };
+
+}
+
+/**
+ * @author supereggbert / http://www.paulbrunt.co.uk/
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ * @author szimek / https://github.com/szimek/
+ * @author tschw
+ */
+
+function WebGLRenderer( parameters ) {
+
+	console.log( 'THREE.WebGLRenderer', REVISION );
+
+	parameters = parameters || {};
+
+	var _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),
+		_context = parameters.context !== undefined ? parameters.context : null,
+
+		_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
+		_depth = parameters.depth !== undefined ? parameters.depth : true,
+		_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
+		_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
+		_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
+		_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false;
+
+	var lightsArray = [];
+	var shadowsArray = [];
+
+	var currentRenderList = null;
+
+	var spritesArray = [];
+	var flaresArray = [];
+
+	// public properties
+
+	this.domElement = _canvas;
+	this.context = null;
+
+	// clearing
+
+	this.autoClear = true;
+	this.autoClearColor = true;
+	this.autoClearDepth = true;
+	this.autoClearStencil = true;
+
+	// scene graph
+
+	this.sortObjects = true;
+
+	// user-defined clipping
+
+	this.clippingPlanes = [];
+	this.localClippingEnabled = false;
+
+	// physically based shading
+
+	this.gammaFactor = 2.0;	// for backwards compatibility
+	this.gammaInput = false;
+	this.gammaOutput = false;
+
+	// physical lights
+
+	this.physicallyCorrectLights = false;
+
+	// tone mapping
+
+	this.toneMapping = LinearToneMapping;
+	this.toneMappingExposure = 1.0;
+	this.toneMappingWhitePoint = 1.0;
+
+	// morphs
+
+	this.maxMorphTargets = 8;
+	this.maxMorphNormals = 4;
+
+	// internal properties
+
+	var _this = this,
+
+		_isContextLost = false,
+
+		// internal state cache
+
+		_currentRenderTarget = null,
+		_currentFramebuffer = null,
+		_currentMaterialId = - 1,
+		_currentGeometryProgram = '',
+
+		_currentCamera = null,
+		_currentArrayCamera = null,
+
+		_currentViewport = new Vector4(),
+		_currentScissor = new Vector4(),
+		_currentScissorTest = null,
+
+		//
+
+		_usedTextureUnits = 0,
+
+		//
+
+		_width = _canvas.width,
+		_height = _canvas.height,
+
+		_pixelRatio = 1,
+
+		_viewport = new Vector4( 0, 0, _width, _height ),
+		_scissor = new Vector4( 0, 0, _width, _height ),
+		_scissorTest = false,
+
+		// frustum
+
+		_frustum = new Frustum(),
+
+		// clipping
+
+		_clipping = new WebGLClipping(),
+		_clippingEnabled = false,
+		_localClippingEnabled = false,
+
+		// camera matrices cache
+
+		_projScreenMatrix = new Matrix4(),
+
+		_vector3 = new Vector3(),
+
+		// info
+
+		_infoMemory = {
+			geometries: 0,
+			textures: 0
+		},
+
+		_infoRender = {
+
+			frame: 0,
+			calls: 0,
+			vertices: 0,
+			faces: 0,
+			points: 0
+
+		};
+
+	this.info = {
+
+		render: _infoRender,
+		memory: _infoMemory,
+		programs: null
+
+	};
+
+	function getTargetPixelRatio() {
+
+		return _currentRenderTarget === null ? _pixelRatio : 1;
+
+	}
+
+	// initialize
+
+	var _gl;
+
+	try {
+
+		var contextAttributes = {
+			alpha: _alpha,
+			depth: _depth,
+			stencil: _stencil,
+			antialias: _antialias,
+			premultipliedAlpha: _premultipliedAlpha,
+			preserveDrawingBuffer: _preserveDrawingBuffer
+		};
+
+		_gl = _context || _canvas.getContext( 'webgl', contextAttributes ) || _canvas.getContext( 'experimental-webgl', contextAttributes );
+
+		if ( _gl === null ) {
+
+			if ( _canvas.getContext( 'webgl' ) !== null ) {
+
+				throw 'Error creating WebGL context with your selected attributes.';
+
+			} else {
+
+				throw 'Error creating WebGL context.';
+
+			}
+
+		}
+
+		// Some experimental-webgl implementations do not have getShaderPrecisionFormat
+
+		if ( _gl.getShaderPrecisionFormat === undefined ) {
+
+			_gl.getShaderPrecisionFormat = function () {
+
+				return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };
+
+			};
+
+		}
+
+		_canvas.addEventListener( 'webglcontextlost', onContextLost, false );
+		_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );
+
+	} catch ( error ) {
+
+		console.error( 'THREE.WebGLRenderer: ' + error );
+
+	}
+
+	var extensions, capabilities, state;
+	var properties, textures, attributes, geometries, objects, lights;
+	var programCache, renderLists;
+
+	var background, morphtargets, bufferRenderer, indexedBufferRenderer;
+	var flareRenderer, spriteRenderer;
+
+	var utils;
+
+	function initGLContext() {
+
+		extensions = new WebGLExtensions( _gl );
+		extensions.get( 'WEBGL_depth_texture' );
+		extensions.get( 'OES_texture_float' );
+		extensions.get( 'OES_texture_float_linear' );
+		extensions.get( 'OES_texture_half_float' );
+		extensions.get( 'OES_texture_half_float_linear' );
+		extensions.get( 'OES_standard_derivatives' );
+		extensions.get( 'OES_element_index_uint' );
+		extensions.get( 'ANGLE_instanced_arrays' );
+
+		utils = new WebGLUtils( _gl, extensions );
+
+		capabilities = new WebGLCapabilities( _gl, extensions, parameters );
+
+		state = new WebGLState( _gl, extensions, utils );
+		state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
+		state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
+
+		properties = new WebGLProperties();
+		textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, _infoMemory );
+		attributes = new WebGLAttributes( _gl );
+		geometries = new WebGLGeometries( _gl, attributes, _infoMemory );
+		objects = new WebGLObjects( geometries, _infoRender );
+		morphtargets = new WebGLMorphtargets( _gl );
+		programCache = new WebGLPrograms( _this, extensions, capabilities );
+		lights = new WebGLLights();
+		renderLists = new WebGLRenderLists();
+
+		background = new WebGLBackground( _this, state, geometries, _premultipliedAlpha );
+
+		bufferRenderer = new WebGLBufferRenderer( _gl, extensions, _infoRender );
+		indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, _infoRender );
+
+		flareRenderer = new WebGLFlareRenderer( _this, _gl, state, textures, capabilities );
+		spriteRenderer = new WebGLSpriteRenderer( _this, _gl, state, textures, capabilities );
+
+		_this.info.programs = programCache.programs;
+
+		_this.context = _gl;
+		_this.capabilities = capabilities;
+		_this.extensions = extensions;
+		_this.properties = properties;
+		_this.renderLists = renderLists;
+		_this.state = state;
+
+	}
+
+	initGLContext();
+
+	// vr
+
+	var vr = new WebVRManager( _this );
+
+	this.vr = vr;
+
+	// shadow map
+
+	var shadowMap = new WebGLShadowMap( _this, objects, capabilities.maxTextureSize );
+
+	this.shadowMap = shadowMap;
+
+	// API
+
+	this.getContext = function () {
+
+		return _gl;
+
+	};
+
+	this.getContextAttributes = function () {
+
+		return _gl.getContextAttributes();
+
+	};
+
+	this.forceContextLoss = function () {
+
+		var extension = extensions.get( 'WEBGL_lose_context' );
+		if ( extension ) extension.loseContext();
+
+	};
+
+	this.forceContextRestore = function () {
+
+		var extension = extensions.get( 'WEBGL_lose_context' );
+		if ( extension ) extension.restoreContext();
+
+	};
+
+	this.getPixelRatio = function () {
+
+		return _pixelRatio;
+
+	};
+
+	this.setPixelRatio = function ( value ) {
+
+		if ( value === undefined ) return;
+
+		_pixelRatio = value;
+
+		this.setSize( _width, _height, false );
+
+	};
+
+	this.getSize = function () {
+
+		return {
+			width: _width,
+			height: _height
+		};
+
+	};
+
+	this.setSize = function ( width, height, updateStyle ) {
+
+		var device = vr.getDevice();
+
+		if ( device && device.isPresenting ) {
+
+			console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
+			return;
+
+		}
+
+		_width = width;
+		_height = height;
+
+		_canvas.width = width * _pixelRatio;
+		_canvas.height = height * _pixelRatio;
+
+		if ( updateStyle !== false ) {
+
+			_canvas.style.width = width + 'px';
+			_canvas.style.height = height + 'px';
+
+		}
+
+		this.setViewport( 0, 0, width, height );
+
+	};
+
+	this.getDrawingBufferSize = function () {
+
+		return {
+			width: _width * _pixelRatio,
+			height: _height * _pixelRatio
+		};
+
+	};
+
+	this.setDrawingBufferSize = function ( width, height, pixelRatio ) {
+
+		_width = width;
+		_height = height;
+
+		_pixelRatio = pixelRatio;
+
+		_canvas.width = width * pixelRatio;
+		_canvas.height = height * pixelRatio;
+
+		this.setViewport( 0, 0, width, height );
+
+	};
+
+	this.setViewport = function ( x, y, width, height ) {
+
+		_viewport.set( x, _height - y - height, width, height );
+		state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
+
+	};
+
+	this.setScissor = function ( x, y, width, height ) {
+
+		_scissor.set( x, _height - y - height, width, height );
+		state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
+
+	};
+
+	this.setScissorTest = function ( boolean ) {
+
+		state.setScissorTest( _scissorTest = boolean );
+
+	};
+
+	// Clearing
+
+	this.getClearColor = function () {
+
+		return background.getClearColor();
+
+	};
+
+	this.setClearColor = function () {
+
+		background.setClearColor.apply( background, arguments );
+
+	};
+
+	this.getClearAlpha = function () {
+
+		return background.getClearAlpha();
+
+	};
+
+	this.setClearAlpha = function () {
+
+		background.setClearAlpha.apply( background, arguments );
+
+	};
+
+	this.clear = function ( color, depth, stencil ) {
+
+		var bits = 0;
+
+		if ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT;
+		if ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT;
+		if ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT;
+
+		_gl.clear( bits );
+
+	};
+
+	this.clearColor = function () {
+
+		this.clear( true, false, false );
+
+	};
+
+	this.clearDepth = function () {
+
+		this.clear( false, true, false );
+
+	};
+
+	this.clearStencil = function () {
+
+		this.clear( false, false, true );
+
+	};
+
+	this.clearTarget = function ( renderTarget, color, depth, stencil ) {
+
+		this.setRenderTarget( renderTarget );
+		this.clear( color, depth, stencil );
+
+	};
+
+	//
+
+	this.dispose = function () {
+
+		_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );
+		_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );
+
+		renderLists.dispose();
+
+		vr.dispose();
+
+	};
+
+	// Events
+
+	function onContextLost( event ) {
+
+		event.preventDefault();
+
+		console.log( 'THREE.WebGLRenderer: Context Lost.' );
+
+		_isContextLost = true;
+
+	}
+
+	function onContextRestore( /* event */ ) {
+
+		console.log( 'THREE.WebGLRenderer: Context Restored.' );
+
+		_isContextLost = false;
+
+		initGLContext();
+
+	}
+
+	function onMaterialDispose( event ) {
+
+		var material = event.target;
+
+		material.removeEventListener( 'dispose', onMaterialDispose );
+
+		deallocateMaterial( material );
+
+	}
+
+	// Buffer deallocation
+
+	function deallocateMaterial( material ) {
+
+		releaseMaterialProgramReference( material );
+
+		properties.remove( material );
+
+	}
+
+
+	function releaseMaterialProgramReference( material ) {
+
+		var programInfo = properties.get( material ).program;
+
+		material.program = undefined;
+
+		if ( programInfo !== undefined ) {
+
+			programCache.releaseProgram( programInfo );
+
+		}
+
+	}
+
+	// Buffer rendering
+
+	function renderObjectImmediate( object, program, material ) {
+
+		object.render( function ( object ) {
+
+			_this.renderBufferImmediate( object, program, material );
+
+		} );
+
+	}
+
+	this.renderBufferImmediate = function ( object, program, material ) {
+
+		state.initAttributes();
+
+		var buffers = properties.get( object );
+
+		if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();
+		if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();
+		if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();
+		if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();
+
+		var programAttributes = program.getAttributes();
+
+		if ( object.hasPositions ) {
+
+			_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position );
+			_gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW );
+
+			state.enableAttribute( programAttributes.position );
+			_gl.vertexAttribPointer( programAttributes.position, 3, _gl.FLOAT, false, 0, 0 );
+
+		}
+
+		if ( object.hasNormals ) {
+
+			_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal );
+
+			if ( ! material.isMeshPhongMaterial &&
+				! material.isMeshStandardMaterial &&
+				! material.isMeshNormalMaterial &&
+				material.flatShading === true ) {
+
+				for ( var i = 0, l = object.count * 3; i < l; i += 9 ) {
+
+					var array = object.normalArray;
+
+					var nx = ( array[ i + 0 ] + array[ i + 3 ] + array[ i + 6 ] ) / 3;
+					var ny = ( array[ i + 1 ] + array[ i + 4 ] + array[ i + 7 ] ) / 3;
+					var nz = ( array[ i + 2 ] + array[ i + 5 ] + array[ i + 8 ] ) / 3;
+
+					array[ i + 0 ] = nx;
+					array[ i + 1 ] = ny;
+					array[ i + 2 ] = nz;
+
+					array[ i + 3 ] = nx;
+					array[ i + 4 ] = ny;
+					array[ i + 5 ] = nz;
+
+					array[ i + 6 ] = nx;
+					array[ i + 7 ] = ny;
+					array[ i + 8 ] = nz;
+
+				}
+
+			}
+
+			_gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW );
+
+			state.enableAttribute( programAttributes.normal );
+
+			_gl.vertexAttribPointer( programAttributes.normal, 3, _gl.FLOAT, false, 0, 0 );
+
+		}
+
+		if ( object.hasUvs && material.map ) {
+
+			_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv );
+			_gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW );
+
+			state.enableAttribute( programAttributes.uv );
+
+			_gl.vertexAttribPointer( programAttributes.uv, 2, _gl.FLOAT, false, 0, 0 );
+
+		}
+
+		if ( object.hasColors && material.vertexColors !== NoColors ) {
+
+			_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color );
+			_gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW );
+
+			state.enableAttribute( programAttributes.color );
+
+			_gl.vertexAttribPointer( programAttributes.color, 3, _gl.FLOAT, false, 0, 0 );
+
+		}
+
+		state.disableUnusedAttributes();
+
+		_gl.drawArrays( _gl.TRIANGLES, 0, object.count );
+
+		object.count = 0;
+
+	};
+
+	this.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {
+
+		state.setMaterial( material );
+
+		var program = setProgram( camera, fog, material, object );
+		var geometryProgram = geometry.id + '_' + program.id + '_' + ( material.wireframe === true );
+
+		var updateBuffers = false;
+
+		if ( geometryProgram !== _currentGeometryProgram ) {
+
+			_currentGeometryProgram = geometryProgram;
+			updateBuffers = true;
+
+		}
+
+		if ( object.morphTargetInfluences ) {
+
+			morphtargets.update( object, geometry, material, program );
+
+			updateBuffers = true;
+
+		}
+
+		//
+
+		var index = geometry.index;
+		var position = geometry.attributes.position;
+		var rangeFactor = 1;
+
+		if ( material.wireframe === true ) {
+
+			index = geometries.getWireframeAttribute( geometry );
+			rangeFactor = 2;
+
+		}
+
+		var attribute;
+		var renderer = bufferRenderer;
+
+		if ( index !== null ) {
+
+			attribute = attributes.get( index );
+
+			renderer = indexedBufferRenderer;
+			renderer.setIndex( attribute );
+
+		}
+
+		if ( updateBuffers ) {
+
+			setupVertexAttributes( material, program, geometry );
+
+			if ( index !== null ) {
+
+				_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, attribute.buffer );
+
+			}
+
+		}
+
+		//
+
+		var dataCount = 0;
+
+		if ( index !== null ) {
+
+			dataCount = index.count;
+
+		} else if ( position !== undefined ) {
+
+			dataCount = position.count;
+
+		}
+
+		var rangeStart = geometry.drawRange.start * rangeFactor;
+		var rangeCount = geometry.drawRange.count * rangeFactor;
+
+		var groupStart = group !== null ? group.start * rangeFactor : 0;
+		var groupCount = group !== null ? group.count * rangeFactor : Infinity;
+
+		var drawStart = Math.max( rangeStart, groupStart );
+		var drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;
+
+		var drawCount = Math.max( 0, drawEnd - drawStart + 1 );
+
+		if ( drawCount === 0 ) return;
+
+		//
+
+		if ( object.isMesh ) {
+
+			if ( material.wireframe === true ) {
+
+				state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
+				renderer.setMode( _gl.LINES );
+
+			} else {
+
+				switch ( object.drawMode ) {
+
+					case TrianglesDrawMode:
+						renderer.setMode( _gl.TRIANGLES );
+						break;
+
+					case TriangleStripDrawMode:
+						renderer.setMode( _gl.TRIANGLE_STRIP );
+						break;
+
+					case TriangleFanDrawMode:
+						renderer.setMode( _gl.TRIANGLE_FAN );
+						break;
+
+				}
+
+			}
+
+
+		} else if ( object.isLine ) {
+
+			var lineWidth = material.linewidth;
+
+			if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material
+
+			state.setLineWidth( lineWidth * getTargetPixelRatio() );
+
+			if ( object.isLineSegments ) {
+
+				renderer.setMode( _gl.LINES );
+
+			} else if ( object.isLineLoop ) {
+
+				renderer.setMode( _gl.LINE_LOOP );
+
+			} else {
+
+				renderer.setMode( _gl.LINE_STRIP );
+
+			}
+
+		} else if ( object.isPoints ) {
+
+			renderer.setMode( _gl.POINTS );
+
+		}
+
+		if ( geometry && geometry.isInstancedBufferGeometry ) {
+
+			if ( geometry.maxInstancedCount > 0 ) {
+
+				renderer.renderInstances( geometry, drawStart, drawCount );
+
+			}
+
+		} else {
+
+			renderer.render( drawStart, drawCount );
+
+		}
+
+	};
+
+	function setupVertexAttributes( material, program, geometry, startIndex ) {
+
+		if ( geometry && geometry.isInstancedBufferGeometry ) {
+
+			if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) {
+
+				console.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
+				return;
+
+			}
+
+		}
+
+		if ( startIndex === undefined ) startIndex = 0;
+
+		state.initAttributes();
+
+		var geometryAttributes = geometry.attributes;
+
+		var programAttributes = program.getAttributes();
+
+		var materialDefaultAttributeValues = material.defaultAttributeValues;
+
+		for ( var name in programAttributes ) {
+
+			var programAttribute = programAttributes[ name ];
+
+			if ( programAttribute >= 0 ) {
+
+				var geometryAttribute = geometryAttributes[ name ];
+
+				if ( geometryAttribute !== undefined ) {
+
+					var normalized = geometryAttribute.normalized;
+					var size = geometryAttribute.itemSize;
+
+					var attribute = attributes.get( geometryAttribute );
+
+					// TODO Attribute may not be available on context restore
+
+					if ( attribute === undefined ) continue;
+
+					var buffer = attribute.buffer;
+					var type = attribute.type;
+					var bytesPerElement = attribute.bytesPerElement;
+
+					if ( geometryAttribute.isInterleavedBufferAttribute ) {
+
+						var data = geometryAttribute.data;
+						var stride = data.stride;
+						var offset = geometryAttribute.offset;
+
+						if ( data && data.isInstancedInterleavedBuffer ) {
+
+							state.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute );
+
+							if ( geometry.maxInstancedCount === undefined ) {
+
+								geometry.maxInstancedCount = data.meshPerAttribute * data.count;
+
+							}
+
+						} else {
+
+							state.enableAttribute( programAttribute );
+
+						}
+
+						_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
+						_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, ( startIndex * stride + offset ) * bytesPerElement );
+
+					} else {
+
+						if ( geometryAttribute.isInstancedBufferAttribute ) {
+
+							state.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute );
+
+							if ( geometry.maxInstancedCount === undefined ) {
+
+								geometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;
+
+							}
+
+						} else {
+
+							state.enableAttribute( programAttribute );
+
+						}
+
+						_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
+						_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, startIndex * size * bytesPerElement );
+
+					}
+
+				} else if ( materialDefaultAttributeValues !== undefined ) {
+
+					var value = materialDefaultAttributeValues[ name ];
+
+					if ( value !== undefined ) {
+
+						switch ( value.length ) {
+
+							case 2:
+								_gl.vertexAttrib2fv( programAttribute, value );
+								break;
+
+							case 3:
+								_gl.vertexAttrib3fv( programAttribute, value );
+								break;
+
+							case 4:
+								_gl.vertexAttrib4fv( programAttribute, value );
+								break;
+
+							default:
+								_gl.vertexAttrib1fv( programAttribute, value );
+
+						}
+
+					}
+
+				}
+
+			}
+
+		}
+
+		state.disableUnusedAttributes();
+
+	}
+
+	// Compile
+
+	this.compile = function ( scene, camera ) {
+
+		lightsArray.length = 0;
+		shadowsArray.length = 0;
+
+		scene.traverse( function ( object ) {
+
+			if ( object.isLight ) {
+
+				lightsArray.push( object );
+
+				if ( object.castShadow ) {
+
+					shadowsArray.push( object );
+
+				}
+
+			}
+
+		} );
+
+		lights.setup( lightsArray, shadowsArray, camera );
+
+		scene.traverse( function ( object ) {
+
+			if ( object.material ) {
+
+				if ( Array.isArray( object.material ) ) {
+
+					for ( var i = 0; i < object.material.length; i ++ ) {
+
+						initMaterial( object.material[ i ], scene.fog, object );
+
+					}
+
+				} else {
+
+					initMaterial( object.material, scene.fog, object );
+
+				}
+
+			}
+
+		} );
+
+	};
+
+	// Animation Loop
+
+	var isAnimating = false;
+	var onAnimationFrame = null;
+
+	function start() {
+
+		if ( isAnimating ) return;
+
+		var device = vr.getDevice();
+
+		if ( device && device.isPresenting ) {
+
+			device.requestAnimationFrame( loop );
+
+		} else {
+
+			window.requestAnimationFrame( loop );
+
+		}
+
+		isAnimating = true;
+
+	}
+
+	function loop( time ) {
+
+		if ( onAnimationFrame !== null ) onAnimationFrame( time );
+
+		var device = vr.getDevice();
+
+		if ( device && device.isPresenting ) {
+
+			device.requestAnimationFrame( loop );
+
+		} else {
+
+			window.requestAnimationFrame( loop );
+
+		}
+
+	}
+
+	this.animate = function ( callback ) {
+
+		onAnimationFrame = callback;
+		start();
+
+	};
+
+	// Rendering
+
+	this.render = function ( scene, camera, renderTarget, forceClear ) {
+
+		if ( ! ( camera && camera.isCamera ) ) {
+
+			console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
+			return;
+
+		}
+
+		if ( _isContextLost ) return;
+
+		// reset caching for this frame
+
+		_currentGeometryProgram = '';
+		_currentMaterialId = - 1;
+		_currentCamera = null;
+
+		// update scene graph
+
+		if ( scene.autoUpdate === true ) scene.updateMatrixWorld();
+
+		// update camera matrices and frustum
+
+		if ( camera.parent === null ) camera.updateMatrixWorld();
+
+		if ( vr.enabled ) {
+
+			camera = vr.getCamera( camera );
+
+		}
+
+		_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
+		_frustum.setFromMatrix( _projScreenMatrix );
+
+		lightsArray.length = 0;
+		shadowsArray.length = 0;
+
+		spritesArray.length = 0;
+		flaresArray.length = 0;
+
+		_localClippingEnabled = this.localClippingEnabled;
+		_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );
+
+		currentRenderList = renderLists.get( scene, camera );
+		currentRenderList.init();
+
+		projectObject( scene, camera, _this.sortObjects );
+
+		if ( _this.sortObjects === true ) {
+
+			currentRenderList.sort();
+
+		}
+
+		//
+
+		if ( _clippingEnabled ) _clipping.beginShadows();
+
+		shadowMap.render( shadowsArray, scene, camera );
+
+		lights.setup( lightsArray, shadowsArray, camera );
+
+		if ( _clippingEnabled ) _clipping.endShadows();
+
+		//
+
+		_infoRender.frame ++;
+		_infoRender.calls = 0;
+		_infoRender.vertices = 0;
+		_infoRender.faces = 0;
+		_infoRender.points = 0;
+
+		if ( renderTarget === undefined ) {
+
+			renderTarget = null;
+
+		}
+
+		this.setRenderTarget( renderTarget );
+
+		//
+
+		background.render( currentRenderList, scene, camera, forceClear );
+
+		// render scene
+
+		var opaqueObjects = currentRenderList.opaque;
+		var transparentObjects = currentRenderList.transparent;
+
+		if ( scene.overrideMaterial ) {
+
+			var overrideMaterial = scene.overrideMaterial;
+
+			if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera, overrideMaterial );
+			if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera, overrideMaterial );
+
+		} else {
+
+			// opaque pass (front-to-back order)
+
+			if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera );
+
+			// transparent pass (back-to-front order)
+
+			if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera );
+
+		}
+
+		// custom renderers
+
+		spriteRenderer.render( spritesArray, scene, camera );
+		flareRenderer.render( flaresArray, scene, camera, _currentViewport );
+
+		// Generate mipmap if we're using any kind of mipmap filtering
+
+		if ( renderTarget ) {
+
+			textures.updateRenderTargetMipmap( renderTarget );
+
+		}
+
+		// Ensure depth buffer writing is enabled so it can be cleared on next render
+
+		state.buffers.depth.setTest( true );
+		state.buffers.depth.setMask( true );
+		state.buffers.color.setMask( true );
+
+		state.setPolygonOffset( false );
+
+		if ( vr.enabled ) {
+
+			vr.submitFrame();
+
+		}
+
+		// _gl.finish();
+
+	};
+
+	/*
+	// TODO Duplicated code (Frustum)
+
+	var _sphere = new Sphere();
+
+	function isObjectViewable( object ) {
+
+		var geometry = object.geometry;
+
+		if ( geometry.boundingSphere === null )
+			geometry.computeBoundingSphere();
+
+		_sphere.copy( geometry.boundingSphere ).
+		applyMatrix4( object.matrixWorld );
+
+		return isSphereViewable( _sphere );
+
+	}
+
+	function isSpriteViewable( sprite ) {
+
+		_sphere.center.set( 0, 0, 0 );
+		_sphere.radius = 0.7071067811865476;
+		_sphere.applyMatrix4( sprite.matrixWorld );
+
+		return isSphereViewable( _sphere );
+
+	}
+
+	function isSphereViewable( sphere ) {
+
+		if ( ! _frustum.intersectsSphere( sphere ) ) return false;
+
+		var numPlanes = _clipping.numPlanes;
+
+		if ( numPlanes === 0 ) return true;
+
+		var planes = _this.clippingPlanes,
+
+			center = sphere.center,
+			negRad = - sphere.radius,
+			i = 0;
+
+		do {
+
+			// out when deeper than radius in the negative halfspace
+			if ( planes[ i ].distanceToPoint( center ) < negRad ) return false;
+
+		} while ( ++ i !== numPlanes );
+
+		return true;
+
+	}
+	*/
+
+	function projectObject( object, camera, sortObjects ) {
+
+		if ( object.visible === false ) return;
+
+		var visible = object.layers.test( camera.layers );
+
+		if ( visible ) {
+
+			if ( object.isLight ) {
+
+				lightsArray.push( object );
+
+				if ( object.castShadow ) {
+
+					shadowsArray.push( object );
+
+				}
+
+			} else if ( object.isSprite ) {
+
+				if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {
+
+					spritesArray.push( object );
+
+				}
+
+			} else if ( object.isLensFlare ) {
+
+				flaresArray.push( object );
+
+			} else if ( object.isImmediateRenderObject ) {
+
+				if ( sortObjects ) {
+
+					_vector3.setFromMatrixPosition( object.matrixWorld )
+						.applyMatrix4( _projScreenMatrix );
+
+				}
+
+				currentRenderList.push( object, null, object.material, _vector3.z, null );
+
+			} else if ( object.isMesh || object.isLine || object.isPoints ) {
+
+				if ( object.isSkinnedMesh ) {
+
+					object.skeleton.update();
+
+				}
+
+				if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {
+
+					if ( sortObjects ) {
+
+						_vector3.setFromMatrixPosition( object.matrixWorld )
+							.applyMatrix4( _projScreenMatrix );
+
+					}
+
+					var geometry = objects.update( object );
+					var material = object.material;
+
+					if ( Array.isArray( material ) ) {
+
+						var groups = geometry.groups;
+
+						for ( var i = 0, l = groups.length; i < l; i ++ ) {
+
+							var group = groups[ i ];
+							var groupMaterial = material[ group.materialIndex ];
+
+							if ( groupMaterial && groupMaterial.visible ) {
+
+								currentRenderList.push( object, geometry, groupMaterial, _vector3.z, group );
+
+							}
+
+						}
+
+					} else if ( material.visible ) {
+
+						currentRenderList.push( object, geometry, material, _vector3.z, null );
+
+					}
+
+				}
+
+			}
+
+		}
+
+		var children = object.children;
+
+		for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+			projectObject( children[ i ], camera, sortObjects );
+
+		}
+
+	}
+
+	function renderObjects( renderList, scene, camera, overrideMaterial ) {
+
+		for ( var i = 0, l = renderList.length; i < l; i ++ ) {
+
+			var renderItem = renderList[ i ];
+
+			var object = renderItem.object;
+			var geometry = renderItem.geometry;
+			var material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;
+			var group = renderItem.group;
+
+			if ( camera.isArrayCamera ) {
+
+				_currentArrayCamera = camera;
+
+				var cameras = camera.cameras;
+
+				for ( var j = 0, jl = cameras.length; j < jl; j ++ ) {
+
+					var camera2 = cameras[ j ];
+
+					if ( object.layers.test( camera2.layers ) ) {
+
+						var bounds = camera2.bounds;
+
+						var x = bounds.x * _width;
+						var y = bounds.y * _height;
+						var width = bounds.z * _width;
+						var height = bounds.w * _height;
+
+						state.viewport( _currentViewport.set( x, y, width, height ).multiplyScalar( _pixelRatio ) );
+
+						renderObject( object, scene, camera2, geometry, material, group );
+
+					}
+
+				}
+
+			} else {
+
+				_currentArrayCamera = null;
+
+				renderObject( object, scene, camera, geometry, material, group );
+
+			}
+
+		}
+
+	}
+
+	function renderObject( object, scene, camera, geometry, material, group ) {
+
+		object.onBeforeRender( _this, scene, camera, geometry, material, group );
+
+		object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
+		object.normalMatrix.getNormalMatrix( object.modelViewMatrix );
+
+		if ( object.isImmediateRenderObject ) {
+
+			state.setMaterial( material );
+
+			var program = setProgram( camera, scene.fog, material, object );
+
+			_currentGeometryProgram = '';
+
+			renderObjectImmediate( object, program, material );
+
+		} else {
+
+			_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );
+
+		}
+
+		object.onAfterRender( _this, scene, camera, geometry, material, group );
+
+	}
+
+	function initMaterial( material, fog, object ) {
+
+		var materialProperties = properties.get( material );
+
+		var parameters = programCache.getParameters(
+			material, lights.state, shadowsArray, fog, _clipping.numPlanes, _clipping.numIntersection, object );
+
+		var code = programCache.getProgramCode( material, parameters );
+
+		var program = materialProperties.program;
+		var programChange = true;
+
+		if ( program === undefined ) {
+
+			// new material
+			material.addEventListener( 'dispose', onMaterialDispose );
+
+		} else if ( program.code !== code ) {
+
+			// changed glsl or parameters
+			releaseMaterialProgramReference( material );
+
+		} else if ( parameters.shaderID !== undefined ) {
+
+			// same glsl and uniform list
+			return;
+
+		} else {
+
+			// only rebuild uniform list
+			programChange = false;
+
+		}
+
+		if ( programChange ) {
+
+			if ( parameters.shaderID ) {
+
+				var shader = ShaderLib[ parameters.shaderID ];
+
+				materialProperties.shader = {
+					name: material.type,
+					uniforms: UniformsUtils.clone( shader.uniforms ),
+					vertexShader: shader.vertexShader,
+					fragmentShader: shader.fragmentShader
+				};
+
+			} else {
+
+				materialProperties.shader = {
+					name: material.type,
+					uniforms: material.uniforms,
+					vertexShader: material.vertexShader,
+					fragmentShader: material.fragmentShader
+				};
+
+			}
+
+			material.onBeforeCompile( materialProperties.shader );
+
+			program = programCache.acquireProgram( material, materialProperties.shader, parameters, code );
+
+			materialProperties.program = program;
+			material.program = program;
+
+		}
+
+		var programAttributes = program.getAttributes();
+
+		if ( material.morphTargets ) {
+
+			material.numSupportedMorphTargets = 0;
+
+			for ( var i = 0; i < _this.maxMorphTargets; i ++ ) {
+
+				if ( programAttributes[ 'morphTarget' + i ] >= 0 ) {
+
+					material.numSupportedMorphTargets ++;
+
+				}
+
+			}
+
+		}
+
+		if ( material.morphNormals ) {
+
+			material.numSupportedMorphNormals = 0;
+
+			for ( var i = 0; i < _this.maxMorphNormals; i ++ ) {
+
+				if ( programAttributes[ 'morphNormal' + i ] >= 0 ) {
+
+					material.numSupportedMorphNormals ++;
+
+				}
+
+			}
+
+		}
+
+		var uniforms = materialProperties.shader.uniforms;
+
+		if ( ! material.isShaderMaterial &&
+			! material.isRawShaderMaterial ||
+			material.clipping === true ) {
+
+			materialProperties.numClippingPlanes = _clipping.numPlanes;
+			materialProperties.numIntersection = _clipping.numIntersection;
+			uniforms.clippingPlanes = _clipping.uniform;
+
+		}
+
+		materialProperties.fog = fog;
+
+		// store the light setup it was created for
+
+		materialProperties.lightsHash = lights.state.hash;
+
+		if ( material.lights ) {
+
+			// wire up the material to this renderer's lighting state
+
+			uniforms.ambientLightColor.value = lights.state.ambient;
+			uniforms.directionalLights.value = lights.state.directional;
+			uniforms.spotLights.value = lights.state.spot;
+			uniforms.rectAreaLights.value = lights.state.rectArea;
+			uniforms.pointLights.value = lights.state.point;
+			uniforms.hemisphereLights.value = lights.state.hemi;
+
+			uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
+			uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
+			uniforms.spotShadowMap.value = lights.state.spotShadowMap;
+			uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
+			uniforms.pointShadowMap.value = lights.state.pointShadowMap;
+			uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
+			// TODO (abelnation): add area lights shadow info to uniforms
+
+		}
+
+		var progUniforms = materialProperties.program.getUniforms(),
+			uniformsList =
+				WebGLUniforms.seqWithValue( progUniforms.seq, uniforms );
+
+		materialProperties.uniformsList = uniformsList;
+
+	}
+
+	function setProgram( camera, fog, material, object ) {
+
+		_usedTextureUnits = 0;
+
+		var materialProperties = properties.get( material );
+
+		if ( _clippingEnabled ) {
+
+			if ( _localClippingEnabled || camera !== _currentCamera ) {
+
+				var useCache =
+					camera === _currentCamera &&
+					material.id === _currentMaterialId;
+
+				// we might want to call this function with some ClippingGroup
+				// object instead of the material, once it becomes feasible
+				// (#8465, #8379)
+				_clipping.setState(
+					material.clippingPlanes, material.clipIntersection, material.clipShadows,
+					camera, materialProperties, useCache );
+
+			}
+
+		}
+
+		if ( material.needsUpdate === false ) {
+
+			if ( materialProperties.program === undefined ) {
+
+				material.needsUpdate = true;
+
+			} else if ( material.fog && materialProperties.fog !== fog ) {
+
+				material.needsUpdate = true;
+
+			} else if ( material.lights && materialProperties.lightsHash !== lights.state.hash ) {
+
+				material.needsUpdate = true;
+
+			} else if ( materialProperties.numClippingPlanes !== undefined &&
+				( materialProperties.numClippingPlanes !== _clipping.numPlanes ||
+				materialProperties.numIntersection !== _clipping.numIntersection ) ) {
+
+				material.needsUpdate = true;
+
+			}
+
+		}
+
+		if ( material.needsUpdate ) {
+
+			initMaterial( material, fog, object );
+			material.needsUpdate = false;
+
+		}
+
+		var refreshProgram = false;
+		var refreshMaterial = false;
+		var refreshLights = false;
+
+		var program = materialProperties.program,
+			p_uniforms = program.getUniforms(),
+			m_uniforms = materialProperties.shader.uniforms;
+
+		if ( state.useProgram( program.program ) ) {
+
+			refreshProgram = true;
+			refreshMaterial = true;
+			refreshLights = true;
+
+		}
+
+		if ( material.id !== _currentMaterialId ) {
+
+			_currentMaterialId = material.id;
+
+			refreshMaterial = true;
+
+		}
+
+		if ( refreshProgram || camera !== _currentCamera ) {
+
+			p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );
+
+			if ( capabilities.logarithmicDepthBuffer ) {
+
+				p_uniforms.setValue( _gl, 'logDepthBufFC',
+					2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );
+
+			}
+
+			// Avoid unneeded uniform updates per ArrayCamera's sub-camera
+
+			if ( _currentCamera !== ( _currentArrayCamera || camera ) ) {
+
+				_currentCamera = ( _currentArrayCamera || camera );
+
+				// lighting uniforms depend on the camera so enforce an update
+				// now, in case this material supports lights - or later, when
+				// the next material that does gets activated:
+
+				refreshMaterial = true;		// set to true on material change
+				refreshLights = true;		// remains set until update done
+
+			}
+
+			// load material specific uniforms
+			// (shader material also gets them for the sake of genericity)
+
+			if ( material.isShaderMaterial ||
+				material.isMeshPhongMaterial ||
+				material.isMeshStandardMaterial ||
+				material.envMap ) {
+
+				var uCamPos = p_uniforms.map.cameraPosition;
+
+				if ( uCamPos !== undefined ) {
+
+					uCamPos.setValue( _gl,
+						_vector3.setFromMatrixPosition( camera.matrixWorld ) );
+
+				}
+
+			}
+
+			if ( material.isMeshPhongMaterial ||
+				material.isMeshLambertMaterial ||
+				material.isMeshBasicMaterial ||
+				material.isMeshStandardMaterial ||
+				material.isShaderMaterial ||
+				material.skinning ) {
+
+				p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );
+
+			}
+
+		}
+
+		// skinning uniforms must be set even if material didn't change
+		// auto-setting of texture unit for bone texture must go before other textures
+		// not sure why, but otherwise weird things happen
+
+		if ( material.skinning ) {
+
+			p_uniforms.setOptional( _gl, object, 'bindMatrix' );
+			p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );
+
+			var skeleton = object.skeleton;
+
+			if ( skeleton ) {
+
+				var bones = skeleton.bones;
+
+				if ( capabilities.floatVertexTextures ) {
+
+					if ( skeleton.boneTexture === undefined ) {
+
+						// layout (1 matrix = 4 pixels)
+						//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
+						//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
+						//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
+						//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
+						//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)
+
+
+						var size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix
+						size = _Math.ceilPowerOfTwo( size );
+						size = Math.max( size, 4 );
+
+						var boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel
+						boneMatrices.set( skeleton.boneMatrices ); // copy current values
+
+						var boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );
+
+						skeleton.boneMatrices = boneMatrices;
+						skeleton.boneTexture = boneTexture;
+						skeleton.boneTextureSize = size;
+
+					}
+
+					p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture );
+					p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );
+
+				} else {
+
+					p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );
+
+				}
+
+			}
+
+		}
+
+		if ( refreshMaterial ) {
+
+			p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );
+			p_uniforms.setValue( _gl, 'toneMappingWhitePoint', _this.toneMappingWhitePoint );
+
+			if ( material.lights ) {
+
+				// the current material requires lighting info
+
+				// note: all lighting uniforms are always set correctly
+				// they simply reference the renderer's state for their
+				// values
+				//
+				// use the current material's .needsUpdate flags to set
+				// the GL state when required
+
+				markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );
+
+			}
+
+			// refresh uniforms common to several materials
+
+			if ( fog && material.fog ) {
+
+				refreshUniformsFog( m_uniforms, fog );
+
+			}
+
+			if ( material.isMeshBasicMaterial ) {
+
+				refreshUniformsCommon( m_uniforms, material );
+
+			} else if ( material.isMeshLambertMaterial ) {
+
+				refreshUniformsCommon( m_uniforms, material );
+				refreshUniformsLambert( m_uniforms, material );
+
+			} else if ( material.isMeshPhongMaterial ) {
+
+				refreshUniformsCommon( m_uniforms, material );
+
+				if ( material.isMeshToonMaterial ) {
+
+					refreshUniformsToon( m_uniforms, material );
+
+				} else {
+
+					refreshUniformsPhong( m_uniforms, material );
+
+				}
+
+			} else if ( material.isMeshStandardMaterial ) {
+
+				refreshUniformsCommon( m_uniforms, material );
+
+				if ( material.isMeshPhysicalMaterial ) {
+
+					refreshUniformsPhysical( m_uniforms, material );
+
+				} else {
+
+					refreshUniformsStandard( m_uniforms, material );
+
+				}
+
+			} else if ( material.isMeshDepthMaterial ) {
+
+				refreshUniformsCommon( m_uniforms, material );
+				refreshUniformsDepth( m_uniforms, material );
+
+			} else if ( material.isMeshDistanceMaterial ) {
+
+				refreshUniformsCommon( m_uniforms, material );
+				refreshUniformsDistance( m_uniforms, material );
+
+			} else if ( material.isMeshNormalMaterial ) {
+
+				refreshUniformsCommon( m_uniforms, material );
+				refreshUniformsNormal( m_uniforms, material );
+
+			} else if ( material.isLineBasicMaterial ) {
+
+				refreshUniformsLine( m_uniforms, material );
+
+				if ( material.isLineDashedMaterial ) {
+
+					refreshUniformsDash( m_uniforms, material );
+
+				}
+
+			} else if ( material.isPointsMaterial ) {
+
+				refreshUniformsPoints( m_uniforms, material );
+
+			} else if ( material.isShadowMaterial ) {
+
+				m_uniforms.color.value = material.color;
+				m_uniforms.opacity.value = material.opacity;
+
+			}
+
+			// RectAreaLight Texture
+			// TODO (mrdoob): Find a nicer implementation
+
+			if ( m_uniforms.ltcMat !== undefined ) m_uniforms.ltcMat.value = UniformsLib.LTC_MAT_TEXTURE;
+			if ( m_uniforms.ltcMag !== undefined ) m_uniforms.ltcMag.value = UniformsLib.LTC_MAG_TEXTURE;
+
+			WebGLUniforms.upload(
+				_gl, materialProperties.uniformsList, m_uniforms, _this );
+
+		}
+
+
+		// common matrices
+
+		p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
+		p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
+		p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );
+
+		return program;
+
+	}
+
+	// Uniforms (refresh uniforms objects)
+
+	function refreshUniformsCommon( uniforms, material ) {
+
+		uniforms.opacity.value = material.opacity;
+
+		if ( material.color ) {
+
+			uniforms.diffuse.value = material.color;
+
+		}
+
+		if ( material.emissive ) {
+
+			uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );
+
+		}
+
+		if ( material.map ) {
+
+			uniforms.map.value = material.map;
+
+		}
+
+		if ( material.alphaMap ) {
+
+			uniforms.alphaMap.value = material.alphaMap;
+
+		}
+
+		if ( material.specularMap ) {
+
+			uniforms.specularMap.value = material.specularMap;
+
+		}
+
+		if ( material.envMap ) {
+
+			uniforms.envMap.value = material.envMap;
+
+			// don't flip CubeTexture envMaps, flip everything else:
+			//  WebGLRenderTargetCube will be flipped for backwards compatibility
+			//  WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
+			// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
+			uniforms.flipEnvMap.value = ( ! ( material.envMap && material.envMap.isCubeTexture ) ) ? 1 : - 1;
+
+			uniforms.reflectivity.value = material.reflectivity;
+			uniforms.refractionRatio.value = material.refractionRatio;
+
+		}
+
+		if ( material.lightMap ) {
+
+			uniforms.lightMap.value = material.lightMap;
+			uniforms.lightMapIntensity.value = material.lightMapIntensity;
+
+		}
+
+		if ( material.aoMap ) {
+
+			uniforms.aoMap.value = material.aoMap;
+			uniforms.aoMapIntensity.value = material.aoMapIntensity;
+
+		}
+
+		// uv repeat and offset setting priorities
+		// 1. color map
+		// 2. specular map
+		// 3. normal map
+		// 4. bump map
+		// 5. alpha map
+		// 6. emissive map
+
+		var uvScaleMap;
+
+		if ( material.map ) {
+
+			uvScaleMap = material.map;
+
+		} else if ( material.specularMap ) {
+
+			uvScaleMap = material.specularMap;
+
+		} else if ( material.displacementMap ) {
+
+			uvScaleMap = material.displacementMap;
+
+		} else if ( material.normalMap ) {
+
+			uvScaleMap = material.normalMap;
+
+		} else if ( material.bumpMap ) {
+
+			uvScaleMap = material.bumpMap;
+
+		} else if ( material.roughnessMap ) {
+
+			uvScaleMap = material.roughnessMap;
+
+		} else if ( material.metalnessMap ) {
+
+			uvScaleMap = material.metalnessMap;
+
+		} else if ( material.alphaMap ) {
+
+			uvScaleMap = material.alphaMap;
+
+		} else if ( material.emissiveMap ) {
+
+			uvScaleMap = material.emissiveMap;
+
+		}
+
+		if ( uvScaleMap !== undefined ) {
+
+			// backwards compatibility
+			if ( uvScaleMap.isWebGLRenderTarget ) {
+
+				uvScaleMap = uvScaleMap.texture;
+
+			}
+
+			if ( uvScaleMap.matrixAutoUpdate === true ) {
+
+				var offset = uvScaleMap.offset;
+				var repeat = uvScaleMap.repeat;
+				var rotation = uvScaleMap.rotation;
+				var center = uvScaleMap.center;
+
+				uvScaleMap.matrix.setUvTransform( offset.x, offset.y, repeat.x, repeat.y, rotation, center.x, center.y );
+
+			}
+
+			uniforms.uvTransform.value.copy( uvScaleMap.matrix );
+
+		}
+
+	}
+
+	function refreshUniformsLine( uniforms, material ) {
+
+		uniforms.diffuse.value = material.color;
+		uniforms.opacity.value = material.opacity;
+
+	}
+
+	function refreshUniformsDash( uniforms, material ) {
+
+		uniforms.dashSize.value = material.dashSize;
+		uniforms.totalSize.value = material.dashSize + material.gapSize;
+		uniforms.scale.value = material.scale;
+
+	}
+
+	function refreshUniformsPoints( uniforms, material ) {
+
+		uniforms.diffuse.value = material.color;
+		uniforms.opacity.value = material.opacity;
+		uniforms.size.value = material.size * _pixelRatio;
+		uniforms.scale.value = _height * 0.5;
+
+		uniforms.map.value = material.map;
+
+		if ( material.map !== null ) {
+
+			if ( material.map.matrixAutoUpdate === true ) {
+
+				var offset = material.map.offset;
+				var repeat = material.map.repeat;
+				var rotation = material.map.rotation;
+				var center = material.map.center;
+
+				material.map.matrix.setUvTransform( offset.x, offset.y, repeat.x, repeat.y, rotation, center.x, center.y );
+
+			}
+
+			uniforms.uvTransform.value.copy( material.map.matrix );
+
+		}
+
+	}
+
+	function refreshUniformsFog( uniforms, fog ) {
+
+		uniforms.fogColor.value = fog.color;
+
+		if ( fog.isFog ) {
+
+			uniforms.fogNear.value = fog.near;
+			uniforms.fogFar.value = fog.far;
+
+		} else if ( fog.isFogExp2 ) {
+
+			uniforms.fogDensity.value = fog.density;
+
+		}
+
+	}
+
+	function refreshUniformsLambert( uniforms, material ) {
+
+		if ( material.emissiveMap ) {
+
+			uniforms.emissiveMap.value = material.emissiveMap;
+
+		}
+
+	}
+
+	function refreshUniformsPhong( uniforms, material ) {
+
+		uniforms.specular.value = material.specular;
+		uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )
+
+		if ( material.emissiveMap ) {
+
+			uniforms.emissiveMap.value = material.emissiveMap;
+
+		}
+
+		if ( material.bumpMap ) {
+
+			uniforms.bumpMap.value = material.bumpMap;
+			uniforms.bumpScale.value = material.bumpScale;
+
+		}
+
+		if ( material.normalMap ) {
+
+			uniforms.normalMap.value = material.normalMap;
+			uniforms.normalScale.value.copy( material.normalScale );
+
+		}
+
+		if ( material.displacementMap ) {
+
+			uniforms.displacementMap.value = material.displacementMap;
+			uniforms.displacementScale.value = material.displacementScale;
+			uniforms.displacementBias.value = material.displacementBias;
+
+		}
+
+	}
+
+	function refreshUniformsToon( uniforms, material ) {
+
+		refreshUniformsPhong( uniforms, material );
+
+		if ( material.gradientMap ) {
+
+			uniforms.gradientMap.value = material.gradientMap;
+
+		}
+
+	}
+
+	function refreshUniformsStandard( uniforms, material ) {
+
+		uniforms.roughness.value = material.roughness;
+		uniforms.metalness.value = material.metalness;
+
+		if ( material.roughnessMap ) {
+
+			uniforms.roughnessMap.value = material.roughnessMap;
+
+		}
+
+		if ( material.metalnessMap ) {
+
+			uniforms.metalnessMap.value = material.metalnessMap;
+
+		}
+
+		if ( material.emissiveMap ) {
+
+			uniforms.emissiveMap.value = material.emissiveMap;
+
+		}
+
+		if ( material.bumpMap ) {
+
+			uniforms.bumpMap.value = material.bumpMap;
+			uniforms.bumpScale.value = material.bumpScale;
+
+		}
+
+		if ( material.normalMap ) {
+
+			uniforms.normalMap.value = material.normalMap;
+			uniforms.normalScale.value.copy( material.normalScale );
+
+		}
+
+		if ( material.displacementMap ) {
+
+			uniforms.displacementMap.value = material.displacementMap;
+			uniforms.displacementScale.value = material.displacementScale;
+			uniforms.displacementBias.value = material.displacementBias;
+
+		}
+
+		if ( material.envMap ) {
+
+			//uniforms.envMap.value = material.envMap; // part of uniforms common
+			uniforms.envMapIntensity.value = material.envMapIntensity;
+
+		}
+
+	}
+
+	function refreshUniformsPhysical( uniforms, material ) {
+
+		uniforms.clearCoat.value = material.clearCoat;
+		uniforms.clearCoatRoughness.value = material.clearCoatRoughness;
+
+		refreshUniformsStandard( uniforms, material );
+
+	}
+
+	function refreshUniformsDepth( uniforms, material ) {
+
+		if ( material.displacementMap ) {
+
+			uniforms.displacementMap.value = material.displacementMap;
+			uniforms.displacementScale.value = material.displacementScale;
+			uniforms.displacementBias.value = material.displacementBias;
+
+		}
+
+	}
+
+	function refreshUniformsDistance( uniforms, material ) {
+
+		if ( material.displacementMap ) {
+
+			uniforms.displacementMap.value = material.displacementMap;
+			uniforms.displacementScale.value = material.displacementScale;
+			uniforms.displacementBias.value = material.displacementBias;
+
+		}
+
+		uniforms.referencePosition.value.copy( material.referencePosition );
+		uniforms.nearDistance.value = material.nearDistance;
+		uniforms.farDistance.value = material.farDistance;
+
+	}
+
+	function refreshUniformsNormal( uniforms, material ) {
+
+		if ( material.bumpMap ) {
+
+			uniforms.bumpMap.value = material.bumpMap;
+			uniforms.bumpScale.value = material.bumpScale;
+
+		}
+
+		if ( material.normalMap ) {
+
+			uniforms.normalMap.value = material.normalMap;
+			uniforms.normalScale.value.copy( material.normalScale );
+
+		}
+
+		if ( material.displacementMap ) {
+
+			uniforms.displacementMap.value = material.displacementMap;
+			uniforms.displacementScale.value = material.displacementScale;
+			uniforms.displacementBias.value = material.displacementBias;
+
+		}
+
+	}
+
+	// If uniforms are marked as clean, they don't need to be loaded to the GPU.
+
+	function markUniformsLightsNeedsUpdate( uniforms, value ) {
+
+		uniforms.ambientLightColor.needsUpdate = value;
+
+		uniforms.directionalLights.needsUpdate = value;
+		uniforms.pointLights.needsUpdate = value;
+		uniforms.spotLights.needsUpdate = value;
+		uniforms.rectAreaLights.needsUpdate = value;
+		uniforms.hemisphereLights.needsUpdate = value;
+
+	}
+
+	// GL state setting
+
+	this.setFaceCulling = function ( cullFace, frontFaceDirection ) {
+
+		state.setCullFace( cullFace );
+		state.setFlipSided( frontFaceDirection === FrontFaceDirectionCW );
+
+	};
+
+	// Textures
+
+	function allocTextureUnit() {
+
+		var textureUnit = _usedTextureUnits;
+
+		if ( textureUnit >= capabilities.maxTextures ) {
+
+			console.warn( 'THREE.WebGLRenderer: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );
+
+		}
+
+		_usedTextureUnits += 1;
+
+		return textureUnit;
+
+	}
+
+	this.allocTextureUnit = allocTextureUnit;
+
+	// this.setTexture2D = setTexture2D;
+	this.setTexture2D = ( function () {
+
+		var warned = false;
+
+		// backwards compatibility: peel texture.texture
+		return function setTexture2D( texture, slot ) {
+
+			if ( texture && texture.isWebGLRenderTarget ) {
+
+				if ( ! warned ) {
+
+					console.warn( "THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead." );
+					warned = true;
+
+				}
+
+				texture = texture.texture;
+
+			}
+
+			textures.setTexture2D( texture, slot );
+
+		};
+
+	}() );
+
+	this.setTexture = ( function () {
+
+		var warned = false;
+
+		return function setTexture( texture, slot ) {
+
+			if ( ! warned ) {
+
+				console.warn( "THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead." );
+				warned = true;
+
+			}
+
+			textures.setTexture2D( texture, slot );
+
+		};
+
+	}() );
+
+	this.setTextureCube = ( function () {
+
+		var warned = false;
+
+		return function setTextureCube( texture, slot ) {
+
+			// backwards compatibility: peel texture.texture
+			if ( texture && texture.isWebGLRenderTargetCube ) {
+
+				if ( ! warned ) {
+
+					console.warn( "THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead." );
+					warned = true;
+
+				}
+
+				texture = texture.texture;
+
+			}
+
+			// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture
+			// TODO: unify these code paths
+			if ( ( texture && texture.isCubeTexture ) ||
+				( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {
+
+				// CompressedTexture can have Array in image :/
+
+				// this function alone should take care of cube textures
+				textures.setTextureCube( texture, slot );
+
+			} else {
+
+				// assumed: texture property of THREE.WebGLRenderTargetCube
+
+				textures.setTextureCubeDynamic( texture, slot );
+
+			}
+
+		};
+
+	}() );
+
+	this.getRenderTarget = function () {
+
+		return _currentRenderTarget;
+
+	};
+
+	this.setRenderTarget = function ( renderTarget ) {
+
+		_currentRenderTarget = renderTarget;
+
+		if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {
+
+			textures.setupRenderTarget( renderTarget );
+
+		}
+
+		var framebuffer = null;
+		var isCube = false;
+
+		if ( renderTarget ) {
+
+			var __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;
+
+			if ( renderTarget.isWebGLRenderTargetCube ) {
+
+				framebuffer = __webglFramebuffer[ renderTarget.activeCubeFace ];
+				isCube = true;
+
+			} else {
+
+				framebuffer = __webglFramebuffer;
+
+			}
+
+			_currentViewport.copy( renderTarget.viewport );
+			_currentScissor.copy( renderTarget.scissor );
+			_currentScissorTest = renderTarget.scissorTest;
+
+		} else {
+
+			_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );
+			_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );
+			_currentScissorTest = _scissorTest;
+
+		}
+
+		if ( _currentFramebuffer !== framebuffer ) {
+
+			_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
+			_currentFramebuffer = framebuffer;
+
+		}
+
+		state.viewport( _currentViewport );
+		state.scissor( _currentScissor );
+		state.setScissorTest( _currentScissorTest );
+
+		if ( isCube ) {
+
+			var textureProperties = properties.get( renderTarget.texture );
+			_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, renderTarget.activeMipMapLevel );
+
+		}
+
+	};
+
+	this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {
+
+		if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {
+
+			console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
+			return;
+
+		}
+
+		var framebuffer = properties.get( renderTarget ).__webglFramebuffer;
+
+		if ( framebuffer ) {
+
+			var restore = false;
+
+			if ( framebuffer !== _currentFramebuffer ) {
+
+				_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
+
+				restore = true;
+
+			}
+
+			try {
+
+				var texture = renderTarget.texture;
+				var textureFormat = texture.format;
+				var textureType = texture.type;
+
+				if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) {
+
+					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
+					return;
+
+				}
+
+				if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE ) && // IE11, Edge and Chrome Mac < 52 (#9513)
+					! ( textureType === FloatType && ( extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox
+					! ( textureType === HalfFloatType && extensions.get( 'EXT_color_buffer_half_float' ) ) ) {
+
+					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
+					return;
+
+				}
+
+				if ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) {
+
+					// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
+
+					if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {
+
+						_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );
+
+					}
+
+				} else {
+
+					console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );
+
+				}
+
+			} finally {
+
+				if ( restore ) {
+
+					_gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer );
+
+				}
+
+			}
+
+		}
+
+	};
+
+}
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function FogExp2( color, density ) {
+
+	this.name = '';
+
+	this.color = new Color( color );
+	this.density = ( density !== undefined ) ? density : 0.00025;
+
+}
+
+FogExp2.prototype.isFogExp2 = true;
+
+FogExp2.prototype.clone = function () {
+
+	return new FogExp2( this.color.getHex(), this.density );
+
+};
+
+FogExp2.prototype.toJSON = function ( /* meta */ ) {
+
+	return {
+		type: 'FogExp2',
+		color: this.color.getHex(),
+		density: this.density
+	};
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function Fog( color, near, far ) {
+
+	this.name = '';
+
+	this.color = new Color( color );
+
+	this.near = ( near !== undefined ) ? near : 1;
+	this.far = ( far !== undefined ) ? far : 1000;
+
+}
+
+Fog.prototype.isFog = true;
+
+Fog.prototype.clone = function () {
+
+	return new Fog( this.color.getHex(), this.near, this.far );
+
+};
+
+Fog.prototype.toJSON = function ( /* meta */ ) {
+
+	return {
+		type: 'Fog',
+		color: this.color.getHex(),
+		near: this.near,
+		far: this.far
+	};
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Scene() {
+
+	Object3D.call( this );
+
+	this.type = 'Scene';
+
+	this.background = null;
+	this.fog = null;
+	this.overrideMaterial = null;
+
+	this.autoUpdate = true; // checked by the renderer
+
+}
+
+Scene.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Scene,
+
+	copy: function ( source, recursive ) {
+
+		Object3D.prototype.copy.call( this, source, recursive );
+
+		if ( source.background !== null ) this.background = source.background.clone();
+		if ( source.fog !== null ) this.fog = source.fog.clone();
+		if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();
+
+		this.autoUpdate = source.autoUpdate;
+		this.matrixAutoUpdate = source.matrixAutoUpdate;
+
+		return this;
+
+	},
+
+	toJSON: function ( meta ) {
+
+		var data = Object3D.prototype.toJSON.call( this, meta );
+
+		if ( this.background !== null ) data.object.background = this.background.toJSON( meta );
+		if ( this.fog !== null ) data.object.fog = this.fog.toJSON();
+
+		return data;
+
+	}
+
+} );
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function LensFlare( texture, size, distance, blending, color ) {
+
+	Object3D.call( this );
+
+	this.lensFlares = [];
+
+	this.positionScreen = new Vector3();
+	this.customUpdateCallback = undefined;
+
+	if ( texture !== undefined ) {
+
+		this.add( texture, size, distance, blending, color );
+
+	}
+
+}
+
+LensFlare.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: LensFlare,
+
+	isLensFlare: true,
+
+	copy: function ( source ) {
+
+		Object3D.prototype.copy.call( this, source );
+
+		this.positionScreen.copy( source.positionScreen );
+		this.customUpdateCallback = source.customUpdateCallback;
+
+		for ( var i = 0, l = source.lensFlares.length; i < l; i ++ ) {
+
+			this.lensFlares.push( source.lensFlares[ i ] );
+
+		}
+
+		return this;
+
+	},
+
+	add: function ( texture, size, distance, blending, color, opacity ) {
+
+		if ( size === undefined ) size = - 1;
+		if ( distance === undefined ) distance = 0;
+		if ( opacity === undefined ) opacity = 1;
+		if ( color === undefined ) color = new Color( 0xffffff );
+		if ( blending === undefined ) blending = NormalBlending;
+
+		distance = Math.min( distance, Math.max( 0, distance ) );
+
+		this.lensFlares.push( {
+			texture: texture,	// THREE.Texture
+			size: size, 		// size in pixels (-1 = use texture.width)
+			distance: distance, 	// distance (0-1) from light source (0=at light source)
+			x: 0, y: 0, z: 0,	// screen position (-1 => 1) z = 0 is in front z = 1 is back
+			scale: 1, 		// scale
+			rotation: 0, 		// rotation
+			opacity: opacity,	// opacity
+			color: color,		// color
+			blending: blending	// blending
+		} );
+
+	},
+
+	/*
+	 * Update lens flares update positions on all flares based on the screen position
+	 * Set myLensFlare.customUpdateCallback to alter the flares in your project specific way.
+	 */
+
+	updateLensFlares: function () {
+
+		var f, fl = this.lensFlares.length;
+		var flare;
+		var vecX = - this.positionScreen.x * 2;
+		var vecY = - this.positionScreen.y * 2;
+
+		for ( f = 0; f < fl; f ++ ) {
+
+			flare = this.lensFlares[ f ];
+
+			flare.x = this.positionScreen.x + vecX * flare.distance;
+			flare.y = this.positionScreen.y + vecY * flare.distance;
+
+			flare.wantedRotation = flare.x * Math.PI * 0.25;
+			flare.rotation += ( flare.wantedRotation - flare.rotation ) * 0.25;
+
+		}
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *	uvOffset: new THREE.Vector2(),
+ *	uvScale: new THREE.Vector2()
+ * }
+ */
+
+function SpriteMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'SpriteMaterial';
+
+	this.color = new Color( 0xffffff );
+	this.map = null;
+
+	this.rotation = 0;
+
+	this.fog = false;
+	this.lights = false;
+
+	this.setValues( parameters );
+
+}
+
+SpriteMaterial.prototype = Object.create( Material.prototype );
+SpriteMaterial.prototype.constructor = SpriteMaterial;
+SpriteMaterial.prototype.isSpriteMaterial = true;
+
+SpriteMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.color.copy( source.color );
+	this.map = source.map;
+
+	this.rotation = source.rotation;
+
+	return this;
+
+};
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function Sprite( material ) {
+
+	Object3D.call( this );
+
+	this.type = 'Sprite';
+
+	this.material = ( material !== undefined ) ? material : new SpriteMaterial();
+
+}
+
+Sprite.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Sprite,
+
+	isSprite: true,
+
+	raycast: ( function () {
+
+		var intersectPoint = new Vector3();
+		var worldPosition = new Vector3();
+		var worldScale = new Vector3();
+
+		return function raycast( raycaster, intersects ) {
+
+			worldPosition.setFromMatrixPosition( this.matrixWorld );
+			raycaster.ray.closestPointToPoint( worldPosition, intersectPoint );
+
+			worldScale.setFromMatrixScale( this.matrixWorld );
+			var guessSizeSq = worldScale.x * worldScale.y / 4;
+
+			if ( worldPosition.distanceToSquared( intersectPoint ) > guessSizeSq ) return;
+
+			var distance = raycaster.ray.origin.distanceTo( intersectPoint );
+
+			if ( distance < raycaster.near || distance > raycaster.far ) return;
+
+			intersects.push( {
+
+				distance: distance,
+				point: intersectPoint.clone(),
+				face: null,
+				object: this
+
+			} );
+
+		};
+
+	}() ),
+
+	clone: function () {
+
+		return new this.constructor( this.material ).copy( this );
+
+	}
+
+} );
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function LOD() {
+
+	Object3D.call( this );
+
+	this.type = 'LOD';
+
+	Object.defineProperties( this, {
+		levels: {
+			enumerable: true,
+			value: []
+		}
+	} );
+
+}
+
+LOD.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: LOD,
+
+	copy: function ( source ) {
+
+		Object3D.prototype.copy.call( this, source, false );
+
+		var levels = source.levels;
+
+		for ( var i = 0, l = levels.length; i < l; i ++ ) {
+
+			var level = levels[ i ];
+
+			this.addLevel( level.object.clone(), level.distance );
+
+		}
+
+		return this;
+
+	},
+
+	addLevel: function ( object, distance ) {
+
+		if ( distance === undefined ) distance = 0;
+
+		distance = Math.abs( distance );
+
+		var levels = this.levels;
+
+		for ( var l = 0; l < levels.length; l ++ ) {
+
+			if ( distance < levels[ l ].distance ) {
+
+				break;
+
+			}
+
+		}
+
+		levels.splice( l, 0, { distance: distance, object: object } );
+
+		this.add( object );
+
+	},
+
+	getObjectForDistance: function ( distance ) {
+
+		var levels = this.levels;
+
+		for ( var i = 1, l = levels.length; i < l; i ++ ) {
+
+			if ( distance < levels[ i ].distance ) {
+
+				break;
+
+			}
+
+		}
+
+		return levels[ i - 1 ].object;
+
+	},
+
+	raycast: ( function () {
+
+		var matrixPosition = new Vector3();
+
+		return function raycast( raycaster, intersects ) {
+
+			matrixPosition.setFromMatrixPosition( this.matrixWorld );
+
+			var distance = raycaster.ray.origin.distanceTo( matrixPosition );
+
+			this.getObjectForDistance( distance ).raycast( raycaster, intersects );
+
+		};
+
+	}() ),
+
+	update: function () {
+
+		var v1 = new Vector3();
+		var v2 = new Vector3();
+
+		return function update( camera ) {
+
+			var levels = this.levels;
+
+			if ( levels.length > 1 ) {
+
+				v1.setFromMatrixPosition( camera.matrixWorld );
+				v2.setFromMatrixPosition( this.matrixWorld );
+
+				var distance = v1.distanceTo( v2 );
+
+				levels[ 0 ].object.visible = true;
+
+				for ( var i = 1, l = levels.length; i < l; i ++ ) {
+
+					if ( distance >= levels[ i ].distance ) {
+
+						levels[ i - 1 ].object.visible = false;
+						levels[ i ].object.visible = true;
+
+					} else {
+
+						break;
+
+					}
+
+				}
+
+				for ( ; i < l; i ++ ) {
+
+					levels[ i ].object.visible = false;
+
+				}
+
+			}
+
+		};
+
+	}(),
+
+	toJSON: function ( meta ) {
+
+		var data = Object3D.prototype.toJSON.call( this, meta );
+
+		data.object.levels = [];
+
+		var levels = this.levels;
+
+		for ( var i = 0, l = levels.length; i < l; i ++ ) {
+
+			var level = levels[ i ];
+
+			data.object.levels.push( {
+				object: level.object.uuid,
+				distance: level.distance
+			} );
+
+		}
+
+		return data;
+
+	}
+
+} );
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ * @author michael guerrero / http://realitymeltdown.com
+ * @author ikerr / http://verold.com
+ */
+
+function Skeleton( bones, boneInverses ) {
+
+	// copy the bone array
+
+	bones = bones || [];
+
+	this.bones = bones.slice( 0 );
+	this.boneMatrices = new Float32Array( this.bones.length * 16 );
+
+	// use the supplied bone inverses or calculate the inverses
+
+	if ( boneInverses === undefined ) {
+
+		this.calculateInverses();
+
+	} else {
+
+		if ( this.bones.length === boneInverses.length ) {
+
+			this.boneInverses = boneInverses.slice( 0 );
+
+		} else {
+
+			console.warn( 'THREE.Skeleton boneInverses is the wrong length.' );
+
+			this.boneInverses = [];
+
+			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
+
+				this.boneInverses.push( new Matrix4() );
+
+			}
+
+		}
+
+	}
+
+}
+
+Object.assign( Skeleton.prototype, {
+
+	calculateInverses: function () {
+
+		this.boneInverses = [];
+
+		for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
+
+			var inverse = new Matrix4();
+
+			if ( this.bones[ i ] ) {
+
+				inverse.getInverse( this.bones[ i ].matrixWorld );
+
+			}
+
+			this.boneInverses.push( inverse );
+
+		}
+
+	},
+
+	pose: function () {
+
+		var bone, i, il;
+
+		// recover the bind-time world matrices
+
+		for ( i = 0, il = this.bones.length; i < il; i ++ ) {
+
+			bone = this.bones[ i ];
+
+			if ( bone ) {
+
+				bone.matrixWorld.getInverse( this.boneInverses[ i ] );
+
+			}
+
+		}
+
+		// compute the local matrices, positions, rotations and scales
+
+		for ( i = 0, il = this.bones.length; i < il; i ++ ) {
+
+			bone = this.bones[ i ];
+
+			if ( bone ) {
+
+				if ( bone.parent && bone.parent.isBone ) {
+
+					bone.matrix.getInverse( bone.parent.matrixWorld );
+					bone.matrix.multiply( bone.matrixWorld );
+
+				} else {
+
+					bone.matrix.copy( bone.matrixWorld );
+
+				}
+
+				bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );
+
+			}
+
+		}
+
+	},
+
+	update: ( function () {
+
+		var offsetMatrix = new Matrix4();
+		var identityMatrix = new Matrix4();
+
+		return function update() {
+
+			var bones = this.bones;
+			var boneInverses = this.boneInverses;
+			var boneMatrices = this.boneMatrices;
+			var boneTexture = this.boneTexture;
+
+			// flatten bone matrices to array
+
+			for ( var i = 0, il = bones.length; i < il; i ++ ) {
+
+				// compute the offset between the current and the original transform
+
+				var matrix = bones[ i ] ? bones[ i ].matrixWorld : identityMatrix;
+
+				offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );
+				offsetMatrix.toArray( boneMatrices, i * 16 );
+
+			}
+
+			if ( boneTexture !== undefined ) {
+
+				boneTexture.needsUpdate = true;
+
+			}
+
+		};
+
+	} )(),
+
+	clone: function () {
+
+		return new Skeleton( this.bones, this.boneInverses );
+
+	}
+
+} );
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ * @author ikerr / http://verold.com
+ */
+
+function Bone() {
+
+	Object3D.call( this );
+
+	this.type = 'Bone';
+
+}
+
+Bone.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Bone,
+
+	isBone: true
+
+} );
+
+/**
+ * @author mikael emtinger / http://gomo.se/
+ * @author alteredq / http://alteredqualia.com/
+ * @author ikerr / http://verold.com
+ */
+
+function SkinnedMesh( geometry, material ) {
+
+	Mesh.call( this, geometry, material );
+
+	this.type = 'SkinnedMesh';
+
+	this.bindMode = 'attached';
+	this.bindMatrix = new Matrix4();
+	this.bindMatrixInverse = new Matrix4();
+
+	var bones = this.initBones();
+	var skeleton = new Skeleton( bones );
+
+	this.bind( skeleton, this.matrixWorld );
+
+	this.normalizeSkinWeights();
+
+}
+
+SkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {
+
+	constructor: SkinnedMesh,
+
+	isSkinnedMesh: true,
+
+	initBones: function () {
+
+		var bones = [], bone, gbone;
+		var i, il;
+
+		if ( this.geometry && this.geometry.bones !== undefined ) {
+
+			// first, create array of 'Bone' objects from geometry data
+
+			for ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {
+
+				gbone = this.geometry.bones[ i ];
+
+				// create new 'Bone' object
+
+				bone = new Bone();
+				bones.push( bone );
+
+				// apply values
+
+				bone.name = gbone.name;
+				bone.position.fromArray( gbone.pos );
+				bone.quaternion.fromArray( gbone.rotq );
+				if ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl );
+
+			}
+
+			// second, create bone hierarchy
+
+			for ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {
+
+				gbone = this.geometry.bones[ i ];
+
+				if ( ( gbone.parent !== - 1 ) && ( gbone.parent !== null ) && ( bones[ gbone.parent ] !== undefined ) ) {
+
+					// subsequent bones in the hierarchy
+
+					bones[ gbone.parent ].add( bones[ i ] );
+
+				} else {
+
+					// topmost bone, immediate child of the skinned mesh
+
+					this.add( bones[ i ] );
+
+				}
+
+			}
+
+		}
+
+		// now the bones are part of the scene graph and children of the skinned mesh.
+		// let's update the corresponding matrices
+
+		this.updateMatrixWorld( true );
+
+		return bones;
+
+	},
+
+	bind: function ( skeleton, bindMatrix ) {
+
+		this.skeleton = skeleton;
+
+		if ( bindMatrix === undefined ) {
+
+			this.updateMatrixWorld( true );
+
+			this.skeleton.calculateInverses();
+
+			bindMatrix = this.matrixWorld;
+
+		}
+
+		this.bindMatrix.copy( bindMatrix );
+		this.bindMatrixInverse.getInverse( bindMatrix );
+
+	},
+
+	pose: function () {
+
+		this.skeleton.pose();
+
+	},
+
+	normalizeSkinWeights: function () {
+
+		var scale, i;
+
+		if ( this.geometry && this.geometry.isGeometry ) {
+
+			for ( i = 0; i < this.geometry.skinWeights.length; i ++ ) {
+
+				var sw = this.geometry.skinWeights[ i ];
+
+				scale = 1.0 / sw.manhattanLength();
+
+				if ( scale !== Infinity ) {
+
+					sw.multiplyScalar( scale );
+
+				} else {
+
+					sw.set( 1, 0, 0, 0 ); // do something reasonable
+
+				}
+
+			}
+
+		} else if ( this.geometry && this.geometry.isBufferGeometry ) {
+
+			var vec = new Vector4();
+
+			var skinWeight = this.geometry.attributes.skinWeight;
+
+			for ( i = 0; i < skinWeight.count; i ++ ) {
+
+				vec.x = skinWeight.getX( i );
+				vec.y = skinWeight.getY( i );
+				vec.z = skinWeight.getZ( i );
+				vec.w = skinWeight.getW( i );
+
+				scale = 1.0 / vec.manhattanLength();
+
+				if ( scale !== Infinity ) {
+
+					vec.multiplyScalar( scale );
+
+				} else {
+
+					vec.set( 1, 0, 0, 0 ); // do something reasonable
+
+				}
+
+				skinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w );
+
+			}
+
+		}
+
+	},
+
+	updateMatrixWorld: function ( force ) {
+
+		Mesh.prototype.updateMatrixWorld.call( this, force );
+
+		if ( this.bindMode === 'attached' ) {
+
+			this.bindMatrixInverse.getInverse( this.matrixWorld );
+
+		} else if ( this.bindMode === 'detached' ) {
+
+			this.bindMatrixInverse.getInverse( this.bindMatrix );
+
+		} else {
+
+			console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );
+
+		}
+
+	},
+
+	clone: function () {
+
+		return new this.constructor( this.geometry, this.material ).copy( this );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *
+ *  linewidth: <float>,
+ *  linecap: "round",
+ *  linejoin: "round"
+ * }
+ */
+
+function LineBasicMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'LineBasicMaterial';
+
+	this.color = new Color( 0xffffff );
+
+	this.linewidth = 1;
+	this.linecap = 'round';
+	this.linejoin = 'round';
+
+	this.lights = false;
+
+	this.setValues( parameters );
+
+}
+
+LineBasicMaterial.prototype = Object.create( Material.prototype );
+LineBasicMaterial.prototype.constructor = LineBasicMaterial;
+
+LineBasicMaterial.prototype.isLineBasicMaterial = true;
+
+LineBasicMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.color.copy( source.color );
+
+	this.linewidth = source.linewidth;
+	this.linecap = source.linecap;
+	this.linejoin = source.linejoin;
+
+	return this;
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Line( geometry, material, mode ) {
+
+	if ( mode === 1 ) {
+
+		console.warn( 'THREE.Line: parameter THREE.LinePieces no longer supported. Created THREE.LineSegments instead.' );
+		return new LineSegments( geometry, material );
+
+	}
+
+	Object3D.call( this );
+
+	this.type = 'Line';
+
+	this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
+	this.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );
+
+}
+
+Line.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Line,
+
+	isLine: true,
+
+	raycast: ( function () {
+
+		var inverseMatrix = new Matrix4();
+		var ray = new Ray();
+		var sphere = new Sphere();
+
+		return function raycast( raycaster, intersects ) {
+
+			var precision = raycaster.linePrecision;
+			var precisionSq = precision * precision;
+
+			var geometry = this.geometry;
+			var matrixWorld = this.matrixWorld;
+
+			// Checking boundingSphere distance to ray
+
+			if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
+
+			sphere.copy( geometry.boundingSphere );
+			sphere.applyMatrix4( matrixWorld );
+
+			if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
+
+			//
+
+			inverseMatrix.getInverse( matrixWorld );
+			ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
+
+			var vStart = new Vector3();
+			var vEnd = new Vector3();
+			var interSegment = new Vector3();
+			var interRay = new Vector3();
+			var step = ( this && this.isLineSegments ) ? 2 : 1;
+
+			if ( geometry.isBufferGeometry ) {
+
+				var index = geometry.index;
+				var attributes = geometry.attributes;
+				var positions = attributes.position.array;
+
+				if ( index !== null ) {
+
+					var indices = index.array;
+
+					for ( var i = 0, l = indices.length - 1; i < l; i += step ) {
+
+						var a = indices[ i ];
+						var b = indices[ i + 1 ];
+
+						vStart.fromArray( positions, a * 3 );
+						vEnd.fromArray( positions, b * 3 );
+
+						var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );
+
+						if ( distSq > precisionSq ) continue;
+
+						interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
+
+						var distance = raycaster.ray.origin.distanceTo( interRay );
+
+						if ( distance < raycaster.near || distance > raycaster.far ) continue;
+
+						intersects.push( {
+
+							distance: distance,
+							// What do we want? intersection point on the ray or on the segment??
+							// point: raycaster.ray.at( distance ),
+							point: interSegment.clone().applyMatrix4( this.matrixWorld ),
+							index: i,
+							face: null,
+							faceIndex: null,
+							object: this
+
+						} );
+
+					}
+
+				} else {
+
+					for ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {
+
+						vStart.fromArray( positions, 3 * i );
+						vEnd.fromArray( positions, 3 * i + 3 );
+
+						var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );
+
+						if ( distSq > precisionSq ) continue;
+
+						interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
+
+						var distance = raycaster.ray.origin.distanceTo( interRay );
+
+						if ( distance < raycaster.near || distance > raycaster.far ) continue;
+
+						intersects.push( {
+
+							distance: distance,
+							// What do we want? intersection point on the ray or on the segment??
+							// point: raycaster.ray.at( distance ),
+							point: interSegment.clone().applyMatrix4( this.matrixWorld ),
+							index: i,
+							face: null,
+							faceIndex: null,
+							object: this
+
+						} );
+
+					}
+
+				}
+
+			} else if ( geometry.isGeometry ) {
+
+				var vertices = geometry.vertices;
+				var nbVertices = vertices.length;
+
+				for ( var i = 0; i < nbVertices - 1; i += step ) {
+
+					var distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );
+
+					if ( distSq > precisionSq ) continue;
+
+					interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
+
+					var distance = raycaster.ray.origin.distanceTo( interRay );
+
+					if ( distance < raycaster.near || distance > raycaster.far ) continue;
+
+					intersects.push( {
+
+						distance: distance,
+						// What do we want? intersection point on the ray or on the segment??
+						// point: raycaster.ray.at( distance ),
+						point: interSegment.clone().applyMatrix4( this.matrixWorld ),
+						index: i,
+						face: null,
+						faceIndex: null,
+						object: this
+
+					} );
+
+				}
+
+			}
+
+		};
+
+	}() ),
+
+	clone: function () {
+
+		return new this.constructor( this.geometry, this.material ).copy( this );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function LineSegments( geometry, material ) {
+
+	Line.call( this, geometry, material );
+
+	this.type = 'LineSegments';
+
+}
+
+LineSegments.prototype = Object.assign( Object.create( Line.prototype ), {
+
+	constructor: LineSegments,
+
+	isLineSegments: true
+
+} );
+
+/**
+ * @author mgreter / http://github.com/mgreter
+ */
+
+function LineLoop( geometry, material ) {
+
+	Line.call( this, geometry, material );
+
+	this.type = 'LineLoop';
+
+}
+
+LineLoop.prototype = Object.assign( Object.create( Line.prototype ), {
+
+	constructor: LineLoop,
+
+	isLineLoop: true,
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  size: <float>,
+ *  sizeAttenuation: <bool>
+ * }
+ */
+
+function PointsMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'PointsMaterial';
+
+	this.color = new Color( 0xffffff );
+
+	this.map = null;
+
+	this.size = 1;
+	this.sizeAttenuation = true;
+
+	this.lights = false;
+
+	this.setValues( parameters );
+
+}
+
+PointsMaterial.prototype = Object.create( Material.prototype );
+PointsMaterial.prototype.constructor = PointsMaterial;
+
+PointsMaterial.prototype.isPointsMaterial = true;
+
+PointsMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.color.copy( source.color );
+
+	this.map = source.map;
+
+	this.size = source.size;
+	this.sizeAttenuation = source.sizeAttenuation;
+
+	return this;
+
+};
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function Points( geometry, material ) {
+
+	Object3D.call( this );
+
+	this.type = 'Points';
+
+	this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
+	this.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );
+
+}
+
+Points.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Points,
+
+	isPoints: true,
+
+	raycast: ( function () {
+
+		var inverseMatrix = new Matrix4();
+		var ray = new Ray();
+		var sphere = new Sphere();
+
+		return function raycast( raycaster, intersects ) {
+
+			var object = this;
+			var geometry = this.geometry;
+			var matrixWorld = this.matrixWorld;
+			var threshold = raycaster.params.Points.threshold;
+
+			// Checking boundingSphere distance to ray
+
+			if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
+
+			sphere.copy( geometry.boundingSphere );
+			sphere.applyMatrix4( matrixWorld );
+			sphere.radius += threshold;
+
+			if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
+
+			//
+
+			inverseMatrix.getInverse( matrixWorld );
+			ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
+
+			var localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
+			var localThresholdSq = localThreshold * localThreshold;
+			var position = new Vector3();
+
+			function testPoint( point, index ) {
+
+				var rayPointDistanceSq = ray.distanceSqToPoint( point );
+
+				if ( rayPointDistanceSq < localThresholdSq ) {
+
+					var intersectPoint = ray.closestPointToPoint( point );
+					intersectPoint.applyMatrix4( matrixWorld );
+
+					var distance = raycaster.ray.origin.distanceTo( intersectPoint );
+
+					if ( distance < raycaster.near || distance > raycaster.far ) return;
+
+					intersects.push( {
+
+						distance: distance,
+						distanceToRay: Math.sqrt( rayPointDistanceSq ),
+						point: intersectPoint.clone(),
+						index: index,
+						face: null,
+						object: object
+
+					} );
+
+				}
+
+			}
+
+			if ( geometry.isBufferGeometry ) {
+
+				var index = geometry.index;
+				var attributes = geometry.attributes;
+				var positions = attributes.position.array;
+
+				if ( index !== null ) {
+
+					var indices = index.array;
+
+					for ( var i = 0, il = indices.length; i < il; i ++ ) {
+
+						var a = indices[ i ];
+
+						position.fromArray( positions, a * 3 );
+
+						testPoint( position, a );
+
+					}
+
+				} else {
+
+					for ( var i = 0, l = positions.length / 3; i < l; i ++ ) {
+
+						position.fromArray( positions, i * 3 );
+
+						testPoint( position, i );
+
+					}
+
+				}
+
+			} else {
+
+				var vertices = geometry.vertices;
+
+				for ( var i = 0, l = vertices.length; i < l; i ++ ) {
+
+					testPoint( vertices[ i ], i );
+
+				}
+
+			}
+
+		};
+
+	}() ),
+
+	clone: function () {
+
+		return new this.constructor( this.geometry, this.material ).copy( this );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Group() {
+
+	Object3D.call( this );
+
+	this.type = 'Group';
+
+}
+
+Group.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Group
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {
+
+	Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
+
+	this.generateMipmaps = false;
+
+	var scope = this;
+
+	function update() {
+
+		var video = scope.image;
+
+		if ( video.readyState >= video.HAVE_CURRENT_DATA ) {
+
+			scope.needsUpdate = true;
+
+		}
+
+		requestAnimationFrame( update );
+
+	}
+
+	requestAnimationFrame( update );
+
+}
+
+VideoTexture.prototype = Object.create( Texture.prototype );
+VideoTexture.prototype.constructor = VideoTexture;
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {
+
+	Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
+
+	this.image = { width: width, height: height };
+	this.mipmaps = mipmaps;
+
+	// no flipping for cube textures
+	// (also flipping doesn't work for compressed textures )
+
+	this.flipY = false;
+
+	// can't generate mipmaps for compressed textures
+	// mips must be embedded in DDS files
+
+	this.generateMipmaps = false;
+
+}
+
+CompressedTexture.prototype = Object.create( Texture.prototype );
+CompressedTexture.prototype.constructor = CompressedTexture;
+
+CompressedTexture.prototype.isCompressedTexture = true;
+
+/**
+ * @author Matt DesLauriers / @mattdesl
+ * @author atix / arthursilber.de
+ */
+
+function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {
+
+	format = format !== undefined ? format : DepthFormat;
+
+	if ( format !== DepthFormat && format !== DepthStencilFormat ) {
+
+		throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );
+
+	}
+
+	if ( type === undefined && format === DepthFormat ) type = UnsignedShortType;
+	if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;
+
+	Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
+
+	this.image = { width: width, height: height };
+
+	this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
+	this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
+
+	this.flipY = false;
+	this.generateMipmaps	= false;
+
+}
+
+DepthTexture.prototype = Object.create( Texture.prototype );
+DepthTexture.prototype.constructor = DepthTexture;
+DepthTexture.prototype.isDepthTexture = true;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+function WireframeGeometry( geometry ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'WireframeGeometry';
+
+	// buffer
+
+	var vertices = [];
+
+	// helper variables
+
+	var i, j, l, o, ol;
+	var edge = [ 0, 0 ], edges = {}, e, edge1, edge2;
+	var key, keys = [ 'a', 'b', 'c' ];
+	var vertex;
+
+	// different logic for Geometry and BufferGeometry
+
+	if ( geometry && geometry.isGeometry ) {
+
+		// create a data structure that contains all edges without duplicates
+
+		var faces = geometry.faces;
+
+		for ( i = 0, l = faces.length; i < l; i ++ ) {
+
+			var face = faces[ i ];
+
+			for ( j = 0; j < 3; j ++ ) {
+
+				edge1 = face[ keys[ j ] ];
+				edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
+				edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
+				edge[ 1 ] = Math.max( edge1, edge2 );
+
+				key = edge[ 0 ] + ',' + edge[ 1 ];
+
+				if ( edges[ key ] === undefined ) {
+
+					edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };
+
+				}
+
+			}
+
+		}
+
+		// generate vertices
+
+		for ( key in edges ) {
+
+			e = edges[ key ];
+
+			vertex = geometry.vertices[ e.index1 ];
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			vertex = geometry.vertices[ e.index2 ];
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+		}
+
+	} else if ( geometry && geometry.isBufferGeometry ) {
+
+		var position, indices, groups;
+		var group, start, count;
+		var index1, index2;
+
+		vertex = new Vector3();
+
+		if ( geometry.index !== null ) {
+
+			// indexed BufferGeometry
+
+			position = geometry.attributes.position;
+			indices = geometry.index;
+			groups = geometry.groups;
+
+			if ( groups.length === 0 ) {
+
+				groups = [ { start: 0, count: indices.count, materialIndex: 0 } ];
+
+			}
+
+			// create a data structure that contains all eges without duplicates
+
+			for ( o = 0, ol = groups.length; o < ol; ++ o ) {
+
+				group = groups[ o ];
+
+				start = group.start;
+				count = group.count;
+
+				for ( i = start, l = ( start + count ); i < l; i += 3 ) {
+
+					for ( j = 0; j < 3; j ++ ) {
+
+						edge1 = indices.getX( i + j );
+						edge2 = indices.getX( i + ( j + 1 ) % 3 );
+						edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
+						edge[ 1 ] = Math.max( edge1, edge2 );
+
+						key = edge[ 0 ] + ',' + edge[ 1 ];
+
+						if ( edges[ key ] === undefined ) {
+
+							edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };
+
+						}
+
+					}
+
+				}
+
+			}
+
+			// generate vertices
+
+			for ( key in edges ) {
+
+				e = edges[ key ];
+
+				vertex.fromBufferAttribute( position, e.index1 );
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				vertex.fromBufferAttribute( position, e.index2 );
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+			}
+
+		} else {
+
+			// non-indexed BufferGeometry
+
+			position = geometry.attributes.position;
+
+			for ( i = 0, l = ( position.count / 3 ); i < l; i ++ ) {
+
+				for ( j = 0; j < 3; j ++ ) {
+
+					// three edges per triangle, an edge is represented as (index1, index2)
+					// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)
+
+					index1 = 3 * i + j;
+					vertex.fromBufferAttribute( position, index1 );
+					vertices.push( vertex.x, vertex.y, vertex.z );
+
+					index2 = 3 * i + ( ( j + 1 ) % 3 );
+					vertex.fromBufferAttribute( position, index2 );
+					vertices.push( vertex.x, vertex.y, vertex.z );
+
+				}
+
+			}
+
+		}
+
+	}
+
+	// build geometry
+
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+
+}
+
+WireframeGeometry.prototype = Object.create( BufferGeometry.prototype );
+WireframeGeometry.prototype.constructor = WireframeGeometry;
+
+/**
+ * @author zz85 / https://github.com/zz85
+ * @author Mugen87 / https://github.com/Mugen87
+ *
+ * Parametric Surfaces Geometry
+ * based on the brilliant article by @prideout http://prideout.net/blog/?p=44
+ */
+
+// ParametricGeometry
+
+function ParametricGeometry( func, slices, stacks ) {
+
+	Geometry.call( this );
+
+	this.type = 'ParametricGeometry';
+
+	this.parameters = {
+		func: func,
+		slices: slices,
+		stacks: stacks
+	};
+
+	this.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );
+	this.mergeVertices();
+
+}
+
+ParametricGeometry.prototype = Object.create( Geometry.prototype );
+ParametricGeometry.prototype.constructor = ParametricGeometry;
+
+// ParametricBufferGeometry
+
+function ParametricBufferGeometry( func, slices, stacks ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'ParametricBufferGeometry';
+
+	this.parameters = {
+		func: func,
+		slices: slices,
+		stacks: stacks
+	};
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	var EPS = 0.00001;
+
+	var normal = new Vector3();
+
+	var p0 = new Vector3(), p1 = new Vector3();
+	var pu = new Vector3(), pv = new Vector3();
+
+	var i, j;
+
+	// generate vertices, normals and uvs
+
+	var sliceCount = slices + 1;
+
+	for ( i = 0; i <= stacks; i ++ ) {
+
+		var v = i / stacks;
+
+		for ( j = 0; j <= slices; j ++ ) {
+
+			var u = j / slices;
+
+			// vertex
+
+			p0 = func( u, v, p0 );
+			vertices.push( p0.x, p0.y, p0.z );
+
+			// normal
+
+			// approximate tangent vectors via finite differences
+
+			if ( u - EPS >= 0 ) {
+
+				p1 = func( u - EPS, v, p1 );
+				pu.subVectors( p0, p1 );
+
+			} else {
+
+				p1 = func( u + EPS, v, p1 );
+				pu.subVectors( p1, p0 );
+
+			}
+
+			if ( v - EPS >= 0 ) {
+
+				p1 = func( u, v - EPS, p1 );
+				pv.subVectors( p0, p1 );
+
+			} else {
+
+				p1 = func( u, v + EPS, p1 );
+				pv.subVectors( p1, p0 );
+
+			}
+
+			// cross product of tangent vectors returns surface normal
+
+			normal.crossVectors( pu, pv ).normalize();
+			normals.push( normal.x, normal.y, normal.z );
+
+			// uv
+
+			uvs.push( u, v );
+
+		}
+
+	}
+
+	// generate indices
+
+	for ( i = 0; i < stacks; i ++ ) {
+
+		for ( j = 0; j < slices; j ++ ) {
+
+			var a = i * sliceCount + j;
+			var b = i * sliceCount + j + 1;
+			var c = ( i + 1 ) * sliceCount + j + 1;
+			var d = ( i + 1 ) * sliceCount + j;
+
+			// faces one and two
+
+			indices.push( a, b, d );
+			indices.push( b, c, d );
+
+		}
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+}
+
+ParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+ParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;
+
+/**
+ * @author clockworkgeek / https://github.com/clockworkgeek
+ * @author timothypratley / https://github.com/timothypratley
+ * @author WestLangley / http://github.com/WestLangley
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// PolyhedronGeometry
+
+function PolyhedronGeometry( vertices, indices, radius, detail ) {
+
+	Geometry.call( this );
+
+	this.type = 'PolyhedronGeometry';
+
+	this.parameters = {
+		vertices: vertices,
+		indices: indices,
+		radius: radius,
+		detail: detail
+	};
+
+	this.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );
+	this.mergeVertices();
+
+}
+
+PolyhedronGeometry.prototype = Object.create( Geometry.prototype );
+PolyhedronGeometry.prototype.constructor = PolyhedronGeometry;
+
+// PolyhedronBufferGeometry
+
+function PolyhedronBufferGeometry( vertices, indices, radius, detail ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'PolyhedronBufferGeometry';
+
+	this.parameters = {
+		vertices: vertices,
+		indices: indices,
+		radius: radius,
+		detail: detail
+	};
+
+	radius = radius || 1;
+	detail = detail || 0;
+
+	// default buffer data
+
+	var vertexBuffer = [];
+	var uvBuffer = [];
+
+	// the subdivision creates the vertex buffer data
+
+	subdivide( detail );
+
+	// all vertices should lie on a conceptual sphere with a given radius
+
+	appplyRadius( radius );
+
+	// finally, create the uv data
+
+	generateUVs();
+
+	// build non-indexed geometry
+
+	this.addAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );
+
+	if ( detail === 0 ) {
+
+		this.computeVertexNormals(); // flat normals
+
+	} else {
+
+		this.normalizeNormals(); // smooth normals
+
+	}
+
+	// helper functions
+
+	function subdivide( detail ) {
+
+		var a = new Vector3();
+		var b = new Vector3();
+		var c = new Vector3();
+
+		// iterate over all faces and apply a subdivison with the given detail value
+
+		for ( var i = 0; i < indices.length; i += 3 ) {
+
+			// get the vertices of the face
+
+			getVertexByIndex( indices[ i + 0 ], a );
+			getVertexByIndex( indices[ i + 1 ], b );
+			getVertexByIndex( indices[ i + 2 ], c );
+
+			// perform subdivision
+
+			subdivideFace( a, b, c, detail );
+
+		}
+
+	}
+
+	function subdivideFace( a, b, c, detail ) {
+
+		var cols = Math.pow( 2, detail );
+
+		// we use this multidimensional array as a data structure for creating the subdivision
+
+		var v = [];
+
+		var i, j;
+
+		// construct all of the vertices for this subdivision
+
+		for ( i = 0; i <= cols; i ++ ) {
+
+			v[ i ] = [];
+
+			var aj = a.clone().lerp( c, i / cols );
+			var bj = b.clone().lerp( c, i / cols );
+
+			var rows = cols - i;
+
+			for ( j = 0; j <= rows; j ++ ) {
+
+				if ( j === 0 && i === cols ) {
+
+					v[ i ][ j ] = aj;
+
+				} else {
+
+					v[ i ][ j ] = aj.clone().lerp( bj, j / rows );
+
+				}
+
+			}
+
+		}
+
+		// construct all of the faces
+
+		for ( i = 0; i < cols; i ++ ) {
+
+			for ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {
+
+				var k = Math.floor( j / 2 );
+
+				if ( j % 2 === 0 ) {
+
+					pushVertex( v[ i ][ k + 1 ] );
+					pushVertex( v[ i + 1 ][ k ] );
+					pushVertex( v[ i ][ k ] );
+
+				} else {
+
+					pushVertex( v[ i ][ k + 1 ] );
+					pushVertex( v[ i + 1 ][ k + 1 ] );
+					pushVertex( v[ i + 1 ][ k ] );
+
+				}
+
+			}
+
+		}
+
+	}
+
+	function appplyRadius( radius ) {
+
+		var vertex = new Vector3();
+
+		// iterate over the entire buffer and apply the radius to each vertex
+
+		for ( var i = 0; i < vertexBuffer.length; i += 3 ) {
+
+			vertex.x = vertexBuffer[ i + 0 ];
+			vertex.y = vertexBuffer[ i + 1 ];
+			vertex.z = vertexBuffer[ i + 2 ];
+
+			vertex.normalize().multiplyScalar( radius );
+
+			vertexBuffer[ i + 0 ] = vertex.x;
+			vertexBuffer[ i + 1 ] = vertex.y;
+			vertexBuffer[ i + 2 ] = vertex.z;
+
+		}
+
+	}
+
+	function generateUVs() {
+
+		var vertex = new Vector3();
+
+		for ( var i = 0; i < vertexBuffer.length; i += 3 ) {
+
+			vertex.x = vertexBuffer[ i + 0 ];
+			vertex.y = vertexBuffer[ i + 1 ];
+			vertex.z = vertexBuffer[ i + 2 ];
+
+			var u = azimuth( vertex ) / 2 / Math.PI + 0.5;
+			var v = inclination( vertex ) / Math.PI + 0.5;
+			uvBuffer.push( u, 1 - v );
+
+		}
+
+		correctUVs();
+
+		correctSeam();
+
+	}
+
+	function correctSeam() {
+
+		// handle case when face straddles the seam, see #3269
+
+		for ( var i = 0; i < uvBuffer.length; i += 6 ) {
+
+			// uv data of a single face
+
+			var x0 = uvBuffer[ i + 0 ];
+			var x1 = uvBuffer[ i + 2 ];
+			var x2 = uvBuffer[ i + 4 ];
+
+			var max = Math.max( x0, x1, x2 );
+			var min = Math.min( x0, x1, x2 );
+
+			// 0.9 is somewhat arbitrary
+
+			if ( max > 0.9 && min < 0.1 ) {
+
+				if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;
+				if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;
+				if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;
+
+			}
+
+		}
+
+	}
+
+	function pushVertex( vertex ) {
+
+		vertexBuffer.push( vertex.x, vertex.y, vertex.z );
+
+	}
+
+	function getVertexByIndex( index, vertex ) {
+
+		var stride = index * 3;
+
+		vertex.x = vertices[ stride + 0 ];
+		vertex.y = vertices[ stride + 1 ];
+		vertex.z = vertices[ stride + 2 ];
+
+	}
+
+	function correctUVs() {
+
+		var a = new Vector3();
+		var b = new Vector3();
+		var c = new Vector3();
+
+		var centroid = new Vector3();
+
+		var uvA = new Vector2();
+		var uvB = new Vector2();
+		var uvC = new Vector2();
+
+		for ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {
+
+			a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );
+			b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );
+			c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );
+
+			uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );
+			uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );
+			uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );
+
+			centroid.copy( a ).add( b ).add( c ).divideScalar( 3 );
+
+			var azi = azimuth( centroid );
+
+			correctUV( uvA, j + 0, a, azi );
+			correctUV( uvB, j + 2, b, azi );
+			correctUV( uvC, j + 4, c, azi );
+
+		}
+
+	}
+
+	function correctUV( uv, stride, vector, azimuth ) {
+
+		if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {
+
+			uvBuffer[ stride ] = uv.x - 1;
+
+		}
+
+		if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {
+
+			uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;
+
+		}
+
+	}
+
+	// Angle around the Y axis, counter-clockwise when looking from above.
+
+	function azimuth( vector ) {
+
+		return Math.atan2( vector.z, - vector.x );
+
+	}
+
+
+	// Angle above the XZ plane.
+
+	function inclination( vector ) {
+
+		return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );
+
+	}
+
+}
+
+PolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+PolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;
+
+/**
+ * @author timothypratley / https://github.com/timothypratley
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// TetrahedronGeometry
+
+function TetrahedronGeometry( radius, detail ) {
+
+	Geometry.call( this );
+
+	this.type = 'TetrahedronGeometry';
+
+	this.parameters = {
+		radius: radius,
+		detail: detail
+	};
+
+	this.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );
+	this.mergeVertices();
+
+}
+
+TetrahedronGeometry.prototype = Object.create( Geometry.prototype );
+TetrahedronGeometry.prototype.constructor = TetrahedronGeometry;
+
+// TetrahedronBufferGeometry
+
+function TetrahedronBufferGeometry( radius, detail ) {
+
+	var vertices = [
+		1, 1, 1, 	- 1, - 1, 1, 	- 1, 1, - 1, 	1, - 1, - 1
+	];
+
+	var indices = [
+		2, 1, 0, 	0, 3, 2,	1, 3, 0,	2, 3, 1
+	];
+
+	PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
+
+	this.type = 'TetrahedronBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		detail: detail
+	};
+
+}
+
+TetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
+TetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;
+
+/**
+ * @author timothypratley / https://github.com/timothypratley
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// OctahedronGeometry
+
+function OctahedronGeometry( radius, detail ) {
+
+	Geometry.call( this );
+
+	this.type = 'OctahedronGeometry';
+
+	this.parameters = {
+		radius: radius,
+		detail: detail
+	};
+
+	this.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );
+	this.mergeVertices();
+
+}
+
+OctahedronGeometry.prototype = Object.create( Geometry.prototype );
+OctahedronGeometry.prototype.constructor = OctahedronGeometry;
+
+// OctahedronBufferGeometry
+
+function OctahedronBufferGeometry( radius, detail ) {
+
+	var vertices = [
+		1, 0, 0, 	- 1, 0, 0,	0, 1, 0,
+		0, - 1, 0, 	0, 0, 1,	0, 0, - 1
+	];
+
+	var indices = [
+		0, 2, 4,	0, 4, 3,	0, 3, 5,
+		0, 5, 2,	1, 2, 5,	1, 5, 3,
+		1, 3, 4,	1, 4, 2
+	];
+
+	PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
+
+	this.type = 'OctahedronBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		detail: detail
+	};
+
+}
+
+OctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
+OctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;
+
+/**
+ * @author timothypratley / https://github.com/timothypratley
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// IcosahedronGeometry
+
+function IcosahedronGeometry( radius, detail ) {
+
+	Geometry.call( this );
+
+	this.type = 'IcosahedronGeometry';
+
+	this.parameters = {
+		radius: radius,
+		detail: detail
+	};
+
+	this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );
+	this.mergeVertices();
+
+}
+
+IcosahedronGeometry.prototype = Object.create( Geometry.prototype );
+IcosahedronGeometry.prototype.constructor = IcosahedronGeometry;
+
+// IcosahedronBufferGeometry
+
+function IcosahedronBufferGeometry( radius, detail ) {
+
+	var t = ( 1 + Math.sqrt( 5 ) ) / 2;
+
+	var vertices = [
+		- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
+		 0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
+		 t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
+	];
+
+	var indices = [
+		 0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
+		 1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
+		 3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
+		 4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
+	];
+
+	PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
+
+	this.type = 'IcosahedronBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		detail: detail
+	};
+
+}
+
+IcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
+IcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;
+
+/**
+ * @author Abe Pazos / https://hamoid.com
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// DodecahedronGeometry
+
+function DodecahedronGeometry( radius, detail ) {
+
+	Geometry.call( this );
+
+	this.type = 'DodecahedronGeometry';
+
+	this.parameters = {
+		radius: radius,
+		detail: detail
+	};
+
+	this.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );
+	this.mergeVertices();
+
+}
+
+DodecahedronGeometry.prototype = Object.create( Geometry.prototype );
+DodecahedronGeometry.prototype.constructor = DodecahedronGeometry;
+
+// DodecahedronBufferGeometry
+
+function DodecahedronBufferGeometry( radius, detail ) {
+
+	var t = ( 1 + Math.sqrt( 5 ) ) / 2;
+	var r = 1 / t;
+
+	var vertices = [
+
+		// (±1, ±1, ±1)
+		- 1, - 1, - 1,	- 1, - 1, 1,
+		- 1, 1, - 1, - 1, 1, 1,
+		1, - 1, - 1, 1, - 1, 1,
+		1, 1, - 1, 1, 1, 1,
+
+		// (0, ±1/φ, ±φ)
+		 0, - r, - t, 0, - r, t,
+		 0, r, - t, 0, r, t,
+
+		// (±1/φ, ±φ, 0)
+		- r, - t, 0, - r, t, 0,
+		 r, - t, 0, r, t, 0,
+
+		// (±φ, 0, ±1/φ)
+		- t, 0, - r, t, 0, - r,
+		- t, 0, r, t, 0, r
+	];
+
+	var indices = [
+		3, 11, 7, 	3, 7, 15, 	3, 15, 13,
+		7, 19, 17, 	7, 17, 6, 	7, 6, 15,
+		17, 4, 8, 	17, 8, 10, 	17, 10, 6,
+		8, 0, 16, 	8, 16, 2, 	8, 2, 10,
+		0, 12, 1, 	0, 1, 18, 	0, 18, 16,
+		6, 10, 2, 	6, 2, 13, 	6, 13, 15,
+		2, 16, 18, 	2, 18, 3, 	2, 3, 13,
+		18, 1, 9, 	18, 9, 11, 	18, 11, 3,
+		4, 14, 12, 	4, 12, 0, 	4, 0, 8,
+		11, 9, 5, 	11, 5, 19, 	11, 19, 7,
+		19, 5, 14, 	19, 14, 4, 	19, 4, 17,
+		1, 12, 14, 	1, 14, 5, 	1, 5, 9
+	];
+
+	PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
+
+	this.type = 'DodecahedronBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		detail: detail
+	};
+
+}
+
+DodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
+DodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;
+
+/**
+ * @author oosmoxiecode / https://github.com/oosmoxiecode
+ * @author WestLangley / https://github.com/WestLangley
+ * @author zz85 / https://github.com/zz85
+ * @author miningold / https://github.com/miningold
+ * @author jonobr1 / https://github.com/jonobr1
+ * @author Mugen87 / https://github.com/Mugen87
+ *
+ */
+
+// TubeGeometry
+
+function TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {
+
+	Geometry.call( this );
+
+	this.type = 'TubeGeometry';
+
+	this.parameters = {
+		path: path,
+		tubularSegments: tubularSegments,
+		radius: radius,
+		radialSegments: radialSegments,
+		closed: closed
+	};
+
+	if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );
+
+	var bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );
+
+	// expose internals
+
+	this.tangents = bufferGeometry.tangents;
+	this.normals = bufferGeometry.normals;
+	this.binormals = bufferGeometry.binormals;
+
+	// create geometry
+
+	this.fromBufferGeometry( bufferGeometry );
+	this.mergeVertices();
+
+}
+
+TubeGeometry.prototype = Object.create( Geometry.prototype );
+TubeGeometry.prototype.constructor = TubeGeometry;
+
+// TubeBufferGeometry
+
+function TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'TubeBufferGeometry';
+
+	this.parameters = {
+		path: path,
+		tubularSegments: tubularSegments,
+		radius: radius,
+		radialSegments: radialSegments,
+		closed: closed
+	};
+
+	tubularSegments = tubularSegments || 64;
+	radius = radius || 1;
+	radialSegments = radialSegments || 8;
+	closed = closed || false;
+
+	var frames = path.computeFrenetFrames( tubularSegments, closed );
+
+	// expose internals
+
+	this.tangents = frames.tangents;
+	this.normals = frames.normals;
+	this.binormals = frames.binormals;
+
+	// helper variables
+
+	var vertex = new Vector3();
+	var normal = new Vector3();
+	var uv = new Vector2();
+	var P = new Vector3();
+
+	var i, j;
+
+	// buffer
+
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+	var indices = [];
+
+	// create buffer data
+
+	generateBufferData();
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	// functions
+
+	function generateBufferData() {
+
+		for ( i = 0; i < tubularSegments; i ++ ) {
+
+			generateSegment( i );
+
+		}
+
+		// if the geometry is not closed, generate the last row of vertices and normals
+		// at the regular position on the given path
+		//
+		// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)
+
+		generateSegment( ( closed === false ) ? tubularSegments : 0 );
+
+		// uvs are generated in a separate function.
+		// this makes it easy compute correct values for closed geometries
+
+		generateUVs();
+
+		// finally create faces
+
+		generateIndices();
+
+	}
+
+	function generateSegment( i ) {
+
+		// we use getPointAt to sample evenly distributed points from the given path
+
+		P = path.getPointAt( i / tubularSegments, P );
+
+		// retrieve corresponding normal and binormal
+
+		var N = frames.normals[ i ];
+		var B = frames.binormals[ i ];
+
+		// generate normals and vertices for the current segment
+
+		for ( j = 0; j <= radialSegments; j ++ ) {
+
+			var v = j / radialSegments * Math.PI * 2;
+
+			var sin = Math.sin( v );
+			var cos = - Math.cos( v );
+
+			// normal
+
+			normal.x = ( cos * N.x + sin * B.x );
+			normal.y = ( cos * N.y + sin * B.y );
+			normal.z = ( cos * N.z + sin * B.z );
+			normal.normalize();
+
+			normals.push( normal.x, normal.y, normal.z );
+
+			// vertex
+
+			vertex.x = P.x + radius * normal.x;
+			vertex.y = P.y + radius * normal.y;
+			vertex.z = P.z + radius * normal.z;
+
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+		}
+
+	}
+
+	function generateIndices() {
+
+		for ( j = 1; j <= tubularSegments; j ++ ) {
+
+			for ( i = 1; i <= radialSegments; i ++ ) {
+
+				var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
+				var b = ( radialSegments + 1 ) * j + ( i - 1 );
+				var c = ( radialSegments + 1 ) * j + i;
+				var d = ( radialSegments + 1 ) * ( j - 1 ) + i;
+
+				// faces
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+			}
+
+		}
+
+	}
+
+	function generateUVs() {
+
+		for ( i = 0; i <= tubularSegments; i ++ ) {
+
+			for ( j = 0; j <= radialSegments; j ++ ) {
+
+				uv.x = i / tubularSegments;
+				uv.y = j / radialSegments;
+
+				uvs.push( uv.x, uv.y );
+
+			}
+
+		}
+
+	}
+
+}
+
+TubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+TubeBufferGeometry.prototype.constructor = TubeBufferGeometry;
+
+/**
+ * @author oosmoxiecode
+ * @author Mugen87 / https://github.com/Mugen87
+ *
+ * based on http://www.blackpawn.com/texts/pqtorus/
+ */
+
+// TorusKnotGeometry
+
+function TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {
+
+	Geometry.call( this );
+
+	this.type = 'TorusKnotGeometry';
+
+	this.parameters = {
+		radius: radius,
+		tube: tube,
+		tubularSegments: tubularSegments,
+		radialSegments: radialSegments,
+		p: p,
+		q: q
+	};
+
+	if ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );
+
+	this.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );
+	this.mergeVertices();
+
+}
+
+TorusKnotGeometry.prototype = Object.create( Geometry.prototype );
+TorusKnotGeometry.prototype.constructor = TorusKnotGeometry;
+
+// TorusKnotBufferGeometry
+
+function TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'TorusKnotBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		tube: tube,
+		tubularSegments: tubularSegments,
+		radialSegments: radialSegments,
+		p: p,
+		q: q
+	};
+
+	radius = radius || 1;
+	tube = tube || 0.4;
+	tubularSegments = Math.floor( tubularSegments ) || 64;
+	radialSegments = Math.floor( radialSegments ) || 8;
+	p = p || 2;
+	q = q || 3;
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// helper variables
+
+	var i, j;
+
+	var vertex = new Vector3();
+	var normal = new Vector3();
+
+	var P1 = new Vector3();
+	var P2 = new Vector3();
+
+	var B = new Vector3();
+	var T = new Vector3();
+	var N = new Vector3();
+
+	// generate vertices, normals and uvs
+
+	for ( i = 0; i <= tubularSegments; ++ i ) {
+
+		// the radian "u" is used to calculate the position on the torus curve of the current tubular segement
+
+		var u = i / tubularSegments * p * Math.PI * 2;
+
+		// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
+		// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions
+
+		calculatePositionOnCurve( u, p, q, radius, P1 );
+		calculatePositionOnCurve( u + 0.01, p, q, radius, P2 );
+
+		// calculate orthonormal basis
+
+		T.subVectors( P2, P1 );
+		N.addVectors( P2, P1 );
+		B.crossVectors( T, N );
+		N.crossVectors( B, T );
+
+		// normalize B, N. T can be ignored, we don't use it
+
+		B.normalize();
+		N.normalize();
+
+		for ( j = 0; j <= radialSegments; ++ j ) {
+
+			// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
+			// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.
+
+			var v = j / radialSegments * Math.PI * 2;
+			var cx = - tube * Math.cos( v );
+			var cy = tube * Math.sin( v );
+
+			// now calculate the final vertex position.
+			// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve
+
+			vertex.x = P1.x + ( cx * N.x + cy * B.x );
+			vertex.y = P1.y + ( cx * N.y + cy * B.y );
+			vertex.z = P1.z + ( cx * N.z + cy * B.z );
+
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)
+
+			normal.subVectors( vertex, P1 ).normalize();
+
+			normals.push( normal.x, normal.y, normal.z );
+
+			// uv
+
+			uvs.push( i / tubularSegments );
+			uvs.push( j / radialSegments );
+
+		}
+
+	}
+
+	// generate indices
+
+	for ( j = 1; j <= tubularSegments; j ++ ) {
+
+		for ( i = 1; i <= radialSegments; i ++ ) {
+
+			// indices
+
+			var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
+			var b = ( radialSegments + 1 ) * j + ( i - 1 );
+			var c = ( radialSegments + 1 ) * j + i;
+			var d = ( radialSegments + 1 ) * ( j - 1 ) + i;
+
+			// faces
+
+			indices.push( a, b, d );
+			indices.push( b, c, d );
+
+		}
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	// this function calculates the current position on the torus curve
+
+	function calculatePositionOnCurve( u, p, q, radius, position ) {
+
+		var cu = Math.cos( u );
+		var su = Math.sin( u );
+		var quOverP = q / p * u;
+		var cs = Math.cos( quOverP );
+
+		position.x = radius * ( 2 + cs ) * 0.5 * cu;
+		position.y = radius * ( 2 + cs ) * su * 0.5;
+		position.z = radius * Math.sin( quOverP ) * 0.5;
+
+	}
+
+}
+
+TorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+TorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;
+
+/**
+ * @author oosmoxiecode
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// TorusGeometry
+
+function TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {
+
+	Geometry.call( this );
+
+	this.type = 'TorusGeometry';
+
+	this.parameters = {
+		radius: radius,
+		tube: tube,
+		radialSegments: radialSegments,
+		tubularSegments: tubularSegments,
+		arc: arc
+	};
+
+	this.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );
+	this.mergeVertices();
+
+}
+
+TorusGeometry.prototype = Object.create( Geometry.prototype );
+TorusGeometry.prototype.constructor = TorusGeometry;
+
+// TorusBufferGeometry
+
+function TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'TorusBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		tube: tube,
+		radialSegments: radialSegments,
+		tubularSegments: tubularSegments,
+		arc: arc
+	};
+
+	radius = radius || 1;
+	tube = tube || 0.4;
+	radialSegments = Math.floor( radialSegments ) || 8;
+	tubularSegments = Math.floor( tubularSegments ) || 6;
+	arc = arc || Math.PI * 2;
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// helper variables
+
+	var center = new Vector3();
+	var vertex = new Vector3();
+	var normal = new Vector3();
+
+	var j, i;
+
+	// generate vertices, normals and uvs
+
+	for ( j = 0; j <= radialSegments; j ++ ) {
+
+		for ( i = 0; i <= tubularSegments; i ++ ) {
+
+			var u = i / tubularSegments * arc;
+			var v = j / radialSegments * Math.PI * 2;
+
+			// vertex
+
+			vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
+			vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
+			vertex.z = tube * Math.sin( v );
+
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			// normal
+
+			center.x = radius * Math.cos( u );
+			center.y = radius * Math.sin( u );
+			normal.subVectors( vertex, center ).normalize();
+
+			normals.push( normal.x, normal.y, normal.z );
+
+			// uv
+
+			uvs.push( i / tubularSegments );
+			uvs.push( j / radialSegments );
+
+		}
+
+	}
+
+	// generate indices
+
+	for ( j = 1; j <= radialSegments; j ++ ) {
+
+		for ( i = 1; i <= tubularSegments; i ++ ) {
+
+			// indices
+
+			var a = ( tubularSegments + 1 ) * j + i - 1;
+			var b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
+			var c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
+			var d = ( tubularSegments + 1 ) * j + i;
+
+			// faces
+
+			indices.push( a, b, d );
+			indices.push( b, c, d );
+
+		}
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+}
+
+TorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+TorusBufferGeometry.prototype.constructor = TorusBufferGeometry;
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ */
+
+var ShapeUtils = {
+
+	// calculate area of the contour polygon
+
+	area: function ( contour ) {
+
+		var n = contour.length;
+		var a = 0.0;
+
+		for ( var p = n - 1, q = 0; q < n; p = q ++ ) {
+
+			a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;
+
+		}
+
+		return a * 0.5;
+
+	},
+
+	triangulate: ( function () {
+
+		/**
+		 * This code is a quick port of code written in C++ which was submitted to
+		 * flipcode.com by John W. Ratcliff  // July 22, 2000
+		 * See original code and more information here:
+		 * http://www.flipcode.com/archives/Efficient_Polygon_Triangulation.shtml
+		 *
+		 * ported to actionscript by Zevan Rosser
+		 * www.actionsnippet.com
+		 *
+		 * ported to javascript by Joshua Koo
+		 * http://www.lab4games.net/zz85/blog
+		 *
+		 */
+
+		function snip( contour, u, v, w, n, verts ) {
+
+			var p;
+			var ax, ay, bx, by;
+			var cx, cy, px, py;
+
+			ax = contour[ verts[ u ] ].x;
+			ay = contour[ verts[ u ] ].y;
+
+			bx = contour[ verts[ v ] ].x;
+			by = contour[ verts[ v ] ].y;
+
+			cx = contour[ verts[ w ] ].x;
+			cy = contour[ verts[ w ] ].y;
+
+			if ( ( bx - ax ) * ( cy - ay ) - ( by - ay ) * ( cx - ax ) <= 0 ) return false;
+
+			var aX, aY, bX, bY, cX, cY;
+			var apx, apy, bpx, bpy, cpx, cpy;
+			var cCROSSap, bCROSScp, aCROSSbp;
+
+			aX = cx - bx; aY = cy - by;
+			bX = ax - cx; bY = ay - cy;
+			cX = bx - ax; cY = by - ay;
+
+			for ( p = 0; p < n; p ++ ) {
+
+				px = contour[ verts[ p ] ].x;
+				py = contour[ verts[ p ] ].y;
+
+				if ( ( ( px === ax ) && ( py === ay ) ) ||
+					 ( ( px === bx ) && ( py === by ) ) ||
+					 ( ( px === cx ) && ( py === cy ) ) )	continue;
+
+				apx = px - ax; apy = py - ay;
+				bpx = px - bx; bpy = py - by;
+				cpx = px - cx; cpy = py - cy;
+
+				// see if p is inside triangle abc
+
+				aCROSSbp = aX * bpy - aY * bpx;
+				cCROSSap = cX * apy - cY * apx;
+				bCROSScp = bX * cpy - bY * cpx;
+
+				if ( ( aCROSSbp >= - Number.EPSILON ) && ( bCROSScp >= - Number.EPSILON ) && ( cCROSSap >= - Number.EPSILON ) ) return false;
+
+			}
+
+			return true;
+
+		}
+
+		// takes in an contour array and returns
+
+		return function triangulate( contour, indices ) {
+
+			var n = contour.length;
+
+			if ( n < 3 ) return null;
+
+			var result = [],
+				verts = [],
+				vertIndices = [];
+
+			/* we want a counter-clockwise polygon in verts */
+
+			var u, v, w;
+
+			if ( ShapeUtils.area( contour ) > 0.0 ) {
+
+				for ( v = 0; v < n; v ++ ) verts[ v ] = v;
+
+			} else {
+
+				for ( v = 0; v < n; v ++ ) verts[ v ] = ( n - 1 ) - v;
+
+			}
+
+			var nv = n;
+
+			/*  remove nv - 2 vertices, creating 1 triangle every time */
+
+			var count = 2 * nv; /* error detection */
+
+			for ( v = nv - 1; nv > 2; ) {
+
+				/* if we loop, it is probably a non-simple polygon */
+
+				if ( ( count -- ) <= 0 ) {
+
+					//** Triangulate: ERROR - probable bad polygon!
+
+					//throw ( "Warning, unable to triangulate polygon!" );
+					//return null;
+					// Sometimes warning is fine, especially polygons are triangulated in reverse.
+					console.warn( 'THREE.ShapeUtils: Unable to triangulate polygon! in triangulate()' );
+
+					if ( indices ) return vertIndices;
+					return result;
+
+				}
+
+				/* three consecutive vertices in current polygon, <u,v,w> */
+
+				u = v; if ( nv <= u ) u = 0; /* previous */
+				v = u + 1; if ( nv <= v ) v = 0; /* new v    */
+				w = v + 1; if ( nv <= w ) w = 0; /* next     */
+
+				if ( snip( contour, u, v, w, nv, verts ) ) {
+
+					var a, b, c, s, t;
+
+					/* true names of the vertices */
+
+					a = verts[ u ];
+					b = verts[ v ];
+					c = verts[ w ];
+
+					/* output Triangle */
+
+					result.push( [ contour[ a ],
+						contour[ b ],
+						contour[ c ] ] );
+
+
+					vertIndices.push( [ verts[ u ], verts[ v ], verts[ w ] ] );
+
+					/* remove v from the remaining polygon */
+
+					for ( s = v, t = v + 1; t < nv; s ++, t ++ ) {
+
+						verts[ s ] = verts[ t ];
+
+					}
+
+					nv --;
+
+					/* reset error detection counter */
+
+					count = 2 * nv;
+
+				}
+
+			}
+
+			if ( indices ) return vertIndices;
+			return result;
+
+		};
+
+	} )(),
+
+	triangulateShape: function ( contour, holes ) {
+
+		function removeDupEndPts( points ) {
+
+			var l = points.length;
+
+			if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {
+
+				points.pop();
+
+			}
+
+		}
+
+		removeDupEndPts( contour );
+		holes.forEach( removeDupEndPts );
+
+		function point_in_segment_2D_colin( inSegPt1, inSegPt2, inOtherPt ) {
+
+			// inOtherPt needs to be collinear to the inSegment
+			if ( inSegPt1.x !== inSegPt2.x ) {
+
+				if ( inSegPt1.x < inSegPt2.x ) {
+
+					return	( ( inSegPt1.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt2.x ) );
+
+				} else {
+
+					return	( ( inSegPt2.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt1.x ) );
+
+				}
+
+			} else {
+
+				if ( inSegPt1.y < inSegPt2.y ) {
+
+					return	( ( inSegPt1.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt2.y ) );
+
+				} else {
+
+					return	( ( inSegPt2.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt1.y ) );
+
+				}
+
+			}
+
+		}
+
+		function intersect_segments_2D( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1, inSeg2Pt2, inExcludeAdjacentSegs ) {
+
+			var seg1dx = inSeg1Pt2.x - inSeg1Pt1.x, seg1dy = inSeg1Pt2.y - inSeg1Pt1.y;
+			var seg2dx = inSeg2Pt2.x - inSeg2Pt1.x, seg2dy = inSeg2Pt2.y - inSeg2Pt1.y;
+
+			var seg1seg2dx = inSeg1Pt1.x - inSeg2Pt1.x;
+			var seg1seg2dy = inSeg1Pt1.y - inSeg2Pt1.y;
+
+			var limit		= seg1dy * seg2dx - seg1dx * seg2dy;
+			var perpSeg1	= seg1dy * seg1seg2dx - seg1dx * seg1seg2dy;
+
+			if ( Math.abs( limit ) > Number.EPSILON ) {
+
+				// not parallel
+
+				var perpSeg2;
+				if ( limit > 0 ) {
+
+					if ( ( perpSeg1 < 0 ) || ( perpSeg1 > limit ) ) 		return [];
+					perpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy;
+					if ( ( perpSeg2 < 0 ) || ( perpSeg2 > limit ) ) 		return [];
+
+				} else {
+
+					if ( ( perpSeg1 > 0 ) || ( perpSeg1 < limit ) ) 		return [];
+					perpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy;
+					if ( ( perpSeg2 > 0 ) || ( perpSeg2 < limit ) ) 		return [];
+
+				}
+
+				// i.e. to reduce rounding errors
+				// intersection at endpoint of segment#1?
+				if ( perpSeg2 === 0 ) {
+
+					if ( ( inExcludeAdjacentSegs ) &&
+						 ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) )		return [];
+					return [ inSeg1Pt1 ];
+
+				}
+				if ( perpSeg2 === limit ) {
+
+					if ( ( inExcludeAdjacentSegs ) &&
+						 ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) )		return [];
+					return [ inSeg1Pt2 ];
+
+				}
+				// intersection at endpoint of segment#2?
+				if ( perpSeg1 === 0 )		return [ inSeg2Pt1 ];
+				if ( perpSeg1 === limit )	return [ inSeg2Pt2 ];
+
+				// return real intersection point
+				var factorSeg1 = perpSeg2 / limit;
+				return	[ { x: inSeg1Pt1.x + factorSeg1 * seg1dx, y: inSeg1Pt1.y + factorSeg1 * seg1dy } ];
+
+			} else {
+
+				// parallel or collinear
+				if ( ( perpSeg1 !== 0 ) ||
+					 ( seg2dy * seg1seg2dx !== seg2dx * seg1seg2dy ) ) 			return [];
+
+				// they are collinear or degenerate
+				var seg1Pt = ( ( seg1dx === 0 ) && ( seg1dy === 0 ) );	// segment1 is just a point?
+				var seg2Pt = ( ( seg2dx === 0 ) && ( seg2dy === 0 ) );	// segment2 is just a point?
+				// both segments are points
+				if ( seg1Pt && seg2Pt ) {
+
+					if ( ( inSeg1Pt1.x !== inSeg2Pt1.x ) ||
+						 ( inSeg1Pt1.y !== inSeg2Pt1.y ) )		return [];	// they are distinct  points
+					return [ inSeg1Pt1 ];	// they are the same point
+
+				}
+				// segment#1  is a single point
+				if ( seg1Pt ) {
+
+					if ( ! point_in_segment_2D_colin( inSeg2Pt1, inSeg2Pt2, inSeg1Pt1 ) )		return [];		// but not in segment#2
+					return [ inSeg1Pt1 ];
+
+				}
+				// segment#2  is a single point
+				if ( seg2Pt ) {
+
+					if ( ! point_in_segment_2D_colin( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1 ) )		return [];		// but not in segment#1
+					return [ inSeg2Pt1 ];
+
+				}
+
+				// they are collinear segments, which might overlap
+				var seg1min, seg1max, seg1minVal, seg1maxVal;
+				var seg2min, seg2max, seg2minVal, seg2maxVal;
+				if ( seg1dx !== 0 ) {
+
+					// the segments are NOT on a vertical line
+					if ( inSeg1Pt1.x < inSeg1Pt2.x ) {
+
+						seg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.x;
+						seg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.x;
+
+					} else {
+
+						seg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.x;
+						seg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.x;
+
+					}
+					if ( inSeg2Pt1.x < inSeg2Pt2.x ) {
+
+						seg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.x;
+						seg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.x;
+
+					} else {
+
+						seg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.x;
+						seg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.x;
+
+					}
+
+				} else {
+
+					// the segments are on a vertical line
+					if ( inSeg1Pt1.y < inSeg1Pt2.y ) {
+
+						seg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.y;
+						seg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.y;
+
+					} else {
+
+						seg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.y;
+						seg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.y;
+
+					}
+					if ( inSeg2Pt1.y < inSeg2Pt2.y ) {
+
+						seg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.y;
+						seg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.y;
+
+					} else {
+
+						seg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.y;
+						seg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.y;
+
+					}
+
+				}
+				if ( seg1minVal <= seg2minVal ) {
+
+					if ( seg1maxVal < seg2minVal )	return [];
+					if ( seg1maxVal === seg2minVal )	{
+
+						if ( inExcludeAdjacentSegs )		return [];
+						return [ seg2min ];
+
+					}
+					if ( seg1maxVal <= seg2maxVal )	return [ seg2min, seg1max ];
+					return	[ seg2min, seg2max ];
+
+				} else {
+
+					if ( seg1minVal > seg2maxVal )	return [];
+					if ( seg1minVal === seg2maxVal )	{
+
+						if ( inExcludeAdjacentSegs )		return [];
+						return [ seg1min ];
+
+					}
+					if ( seg1maxVal <= seg2maxVal )	return [ seg1min, seg1max ];
+					return	[ seg1min, seg2max ];
+
+				}
+
+			}
+
+		}
+
+		function isPointInsideAngle( inVertex, inLegFromPt, inLegToPt, inOtherPt ) {
+
+			// The order of legs is important
+
+			// translation of all points, so that Vertex is at (0,0)
+			var legFromPtX	= inLegFromPt.x - inVertex.x, legFromPtY = inLegFromPt.y - inVertex.y;
+			var legToPtX	= inLegToPt.x	- inVertex.x, legToPtY = inLegToPt.y	- inVertex.y;
+			var otherPtX	= inOtherPt.x	- inVertex.x, otherPtY = inOtherPt.y	- inVertex.y;
+
+			// main angle >0: < 180 deg.; 0: 180 deg.; <0: > 180 deg.
+			var from2toAngle	= legFromPtX * legToPtY - legFromPtY * legToPtX;
+			var from2otherAngle	= legFromPtX * otherPtY - legFromPtY * otherPtX;
+
+			if ( Math.abs( from2toAngle ) > Number.EPSILON ) {
+
+				// angle != 180 deg.
+
+				var other2toAngle		= otherPtX * legToPtY - otherPtY * legToPtX;
+				// console.log( "from2to: " + from2toAngle + ", from2other: " + from2otherAngle + ", other2to: " + other2toAngle );
+
+				if ( from2toAngle > 0 ) {
+
+					// main angle < 180 deg.
+					return	( ( from2otherAngle >= 0 ) && ( other2toAngle >= 0 ) );
+
+				} else {
+
+					// main angle > 180 deg.
+					return	( ( from2otherAngle >= 0 ) || ( other2toAngle >= 0 ) );
+
+				}
+
+			} else {
+
+				// angle == 180 deg.
+				// console.log( "from2to: 180 deg., from2other: " + from2otherAngle  );
+				return	( from2otherAngle > 0 );
+
+			}
+
+		}
+
+
+		function removeHoles( contour, holes ) {
+
+			var shape = contour.concat(); // work on this shape
+			var hole;
+
+			function isCutLineInsideAngles( inShapeIdx, inHoleIdx ) {
+
+				// Check if hole point lies within angle around shape point
+				var lastShapeIdx = shape.length - 1;
+
+				var prevShapeIdx = inShapeIdx - 1;
+				if ( prevShapeIdx < 0 )			prevShapeIdx = lastShapeIdx;
+
+				var nextShapeIdx = inShapeIdx + 1;
+				if ( nextShapeIdx > lastShapeIdx )	nextShapeIdx = 0;
+
+				var insideAngle = isPointInsideAngle( shape[ inShapeIdx ], shape[ prevShapeIdx ], shape[ nextShapeIdx ], hole[ inHoleIdx ] );
+				if ( ! insideAngle ) {
+
+					// console.log( "Vertex (Shape): " + inShapeIdx + ", Point: " + hole[inHoleIdx].x + "/" + hole[inHoleIdx].y );
+					return	false;
+
+				}
+
+				// Check if shape point lies within angle around hole point
+				var lastHoleIdx = hole.length - 1;
+
+				var prevHoleIdx = inHoleIdx - 1;
+				if ( prevHoleIdx < 0 )			prevHoleIdx = lastHoleIdx;
+
+				var nextHoleIdx = inHoleIdx + 1;
+				if ( nextHoleIdx > lastHoleIdx )	nextHoleIdx = 0;
+
+				insideAngle = isPointInsideAngle( hole[ inHoleIdx ], hole[ prevHoleIdx ], hole[ nextHoleIdx ], shape[ inShapeIdx ] );
+				if ( ! insideAngle ) {
+
+					// console.log( "Vertex (Hole): " + inHoleIdx + ", Point: " + shape[inShapeIdx].x + "/" + shape[inShapeIdx].y );
+					return	false;
+
+				}
+
+				return	true;
+
+			}
+
+			function intersectsShapeEdge( inShapePt, inHolePt ) {
+
+				// checks for intersections with shape edges
+				var sIdx, nextIdx, intersection;
+				for ( sIdx = 0; sIdx < shape.length; sIdx ++ ) {
+
+					nextIdx = sIdx + 1; nextIdx %= shape.length;
+					intersection = intersect_segments_2D( inShapePt, inHolePt, shape[ sIdx ], shape[ nextIdx ], true );
+					if ( intersection.length > 0 )		return	true;
+
+				}
+
+				return	false;
+
+			}
+
+			var indepHoles = [];
+
+			function intersectsHoleEdge( inShapePt, inHolePt ) {
+
+				// checks for intersections with hole edges
+				var ihIdx, chkHole,
+					hIdx, nextIdx, intersection;
+				for ( ihIdx = 0; ihIdx < indepHoles.length; ihIdx ++ ) {
+
+					chkHole = holes[ indepHoles[ ihIdx ] ];
+					for ( hIdx = 0; hIdx < chkHole.length; hIdx ++ ) {
+
+						nextIdx = hIdx + 1; nextIdx %= chkHole.length;
+						intersection = intersect_segments_2D( inShapePt, inHolePt, chkHole[ hIdx ], chkHole[ nextIdx ], true );
+						if ( intersection.length > 0 )		return	true;
+
+					}
+
+				}
+				return	false;
+
+			}
+
+			var holeIndex, shapeIndex,
+				shapePt, holePt,
+				holeIdx, cutKey, failedCuts = [],
+				tmpShape1, tmpShape2,
+				tmpHole1, tmpHole2;
+
+			for ( var h = 0, hl = holes.length; h < hl; h ++ ) {
+
+				indepHoles.push( h );
+
+			}
+
+			var minShapeIndex = 0;
+			var counter = indepHoles.length * 2;
+			while ( indepHoles.length > 0 ) {
+
+				counter --;
+				if ( counter < 0 ) {
+
+					console.log( 'THREE.ShapeUtils: Infinite Loop! Holes left:" + indepHoles.length + ", Probably Hole outside Shape!' );
+					break;
+
+				}
+
+				// search for shape-vertex and hole-vertex,
+				// which can be connected without intersections
+				for ( shapeIndex = minShapeIndex; shapeIndex < shape.length; shapeIndex ++ ) {
+
+					shapePt = shape[ shapeIndex ];
+					holeIndex	= - 1;
+
+					// search for hole which can be reached without intersections
+					for ( var h = 0; h < indepHoles.length; h ++ ) {
+
+						holeIdx = indepHoles[ h ];
+
+						// prevent multiple checks
+						cutKey = shapePt.x + ':' + shapePt.y + ':' + holeIdx;
+						if ( failedCuts[ cutKey ] !== undefined )			continue;
+
+						hole = holes[ holeIdx ];
+						for ( var h2 = 0; h2 < hole.length; h2 ++ ) {
+
+							holePt = hole[ h2 ];
+							if ( ! isCutLineInsideAngles( shapeIndex, h2 ) )		continue;
+							if ( intersectsShapeEdge( shapePt, holePt ) )		continue;
+							if ( intersectsHoleEdge( shapePt, holePt ) )		continue;
+
+							holeIndex = h2;
+							indepHoles.splice( h, 1 );
+
+							tmpShape1 = shape.slice( 0, shapeIndex + 1 );
+							tmpShape2 = shape.slice( shapeIndex );
+							tmpHole1 = hole.slice( holeIndex );
+							tmpHole2 = hole.slice( 0, holeIndex + 1 );
+
+							shape = tmpShape1.concat( tmpHole1 ).concat( tmpHole2 ).concat( tmpShape2 );
+
+							minShapeIndex = shapeIndex;
+
+							// Debug only, to show the selected cuts
+							// glob_CutLines.push( [ shapePt, holePt ] );
+
+							break;
+
+						}
+						if ( holeIndex >= 0 )	break;		// hole-vertex found
+
+						failedCuts[ cutKey ] = true;			// remember failure
+
+					}
+					if ( holeIndex >= 0 )	break;		// hole-vertex found
+
+				}
+
+			}
+
+			return shape; 			/* shape with no holes */
+
+		}
+
+
+		var i, il, f, face,
+			key, index,
+			allPointsMap = {};
+
+		// To maintain reference to old shape, one must match coordinates, or offset the indices from original arrays. It's probably easier to do the first.
+
+		var allpoints = contour.concat();
+
+		for ( var h = 0, hl = holes.length; h < hl; h ++ ) {
+
+			Array.prototype.push.apply( allpoints, holes[ h ] );
+
+		}
+
+		//console.log( "allpoints",allpoints, allpoints.length );
+
+		// prepare all points map
+
+		for ( i = 0, il = allpoints.length; i < il; i ++ ) {
+
+			key = allpoints[ i ].x + ':' + allpoints[ i ].y;
+
+			if ( allPointsMap[ key ] !== undefined ) {
+
+				console.warn( 'THREE.ShapeUtils: Duplicate point', key, i );
+
+			}
+
+			allPointsMap[ key ] = i;
+
+		}
+
+		// remove holes by cutting paths to holes and adding them to the shape
+		var shapeWithoutHoles = removeHoles( contour, holes );
+
+		var triangles = ShapeUtils.triangulate( shapeWithoutHoles, false ); // True returns indices for points of spooled shape
+		//console.log( "triangles",triangles, triangles.length );
+
+		// check all face vertices against all points map
+
+		for ( i = 0, il = triangles.length; i < il; i ++ ) {
+
+			face = triangles[ i ];
+
+			for ( f = 0; f < 3; f ++ ) {
+
+				key = face[ f ].x + ':' + face[ f ].y;
+
+				index = allPointsMap[ key ];
+
+				if ( index !== undefined ) {
+
+					face[ f ] = index;
+
+				}
+
+			}
+
+		}
+
+		return triangles.concat();
+
+	},
+
+	isClockWise: function ( pts ) {
+
+		return ShapeUtils.area( pts ) < 0;
+
+	}
+
+};
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ *
+ * Creates extruded geometry from a path shape.
+ *
+ * parameters = {
+ *
+ *  curveSegments: <int>, // number of points on the curves
+ *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
+ *  amount: <int>, // Depth to extrude the shape
+ *
+ *  bevelEnabled: <bool>, // turn on bevel
+ *  bevelThickness: <float>, // how deep into the original shape bevel goes
+ *  bevelSize: <float>, // how far from shape outline is bevel
+ *  bevelSegments: <int>, // number of bevel layers
+ *
+ *  extrudePath: <THREE.Curve> // curve to extrude shape along
+ *  frames: <Object> // containing arrays of tangents, normals, binormals
+ *
+ *  UVGenerator: <Object> // object that provides UV generator functions
+ *
+ * }
+ */
+
+// ExtrudeGeometry
+
+function ExtrudeGeometry( shapes, options ) {
+
+	Geometry.call( this );
+
+	this.type = 'ExtrudeGeometry';
+
+	this.parameters = {
+		shapes: shapes,
+		options: options
+	};
+
+	this.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) );
+	this.mergeVertices();
+
+}
+
+ExtrudeGeometry.prototype = Object.create( Geometry.prototype );
+ExtrudeGeometry.prototype.constructor = ExtrudeGeometry;
+
+// ExtrudeBufferGeometry
+
+function ExtrudeBufferGeometry( shapes, options ) {
+
+	if ( typeof ( shapes ) === "undefined" ) {
+
+		return;
+
+	}
+
+	BufferGeometry.call( this );
+
+	this.type = 'ExtrudeBufferGeometry';
+
+	shapes = Array.isArray( shapes ) ? shapes : [ shapes ];
+
+	this.addShapeList( shapes, options );
+
+	this.computeVertexNormals();
+
+	// can't really use automatic vertex normals
+	// as then front and back sides get smoothed too
+	// should do separate smoothing just for sides
+
+	//this.computeVertexNormals();
+
+	//console.log( "took", ( Date.now() - startTime ) );
+
+}
+
+ExtrudeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+ExtrudeBufferGeometry.prototype.constructor = ExtrudeBufferGeometry;
+
+ExtrudeBufferGeometry.prototype.getArrays = function () {
+
+	var positionAttribute = this.getAttribute( "position" );
+	var verticesArray = positionAttribute ? Array.prototype.slice.call( positionAttribute.array ) : [];
+
+	var uvAttribute = this.getAttribute( "uv" );
+	var uvArray = uvAttribute ? Array.prototype.slice.call( uvAttribute.array ) : [];
+
+	var IndexAttribute = this.index;
+	var indicesArray = IndexAttribute ? Array.prototype.slice.call( IndexAttribute.array ) : [];
+
+	return {
+		position: verticesArray,
+		uv: uvArray,
+		index: indicesArray
+	};
+
+};
+
+ExtrudeBufferGeometry.prototype.addShapeList = function ( shapes, options ) {
+
+	var sl = shapes.length;
+	options.arrays = this.getArrays();
+
+	for ( var s = 0; s < sl; s ++ ) {
+
+		var shape = shapes[ s ];
+		this.addShape( shape, options );
+
+	}
+
+	this.setIndex( options.arrays.index );
+	this.addAttribute( 'position', new Float32BufferAttribute( options.arrays.position, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( options.arrays.uv, 2 ) );
+
+};
+
+ExtrudeBufferGeometry.prototype.addShape = function ( shape, options ) {
+
+	var arrays = options.arrays ? options.arrays : this.getArrays();
+	var verticesArray = arrays.position;
+	var indicesArray = arrays.index;
+	var uvArray = arrays.uv;
+
+	var placeholder = [];
+
+
+	var amount = options.amount !== undefined ? options.amount : 100;
+
+	var bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6; // 10
+	var bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2; // 8
+	var bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;
+
+	var bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true; // false
+
+	var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
+
+	var steps = options.steps !== undefined ? options.steps : 1;
+
+	var extrudePath = options.extrudePath;
+	var extrudePts, extrudeByPath = false;
+
+	// Use default WorldUVGenerator if no UV generators are specified.
+	var uvgen = options.UVGenerator !== undefined ? options.UVGenerator : ExtrudeGeometry.WorldUVGenerator;
+
+	var splineTube, binormal, normal, position2;
+	if ( extrudePath ) {
+
+		extrudePts = extrudePath.getSpacedPoints( steps );
+
+		extrudeByPath = true;
+		bevelEnabled = false; // bevels not supported for path extrusion
+
+		// SETUP TNB variables
+
+		// TODO1 - have a .isClosed in spline?
+
+		splineTube = options.frames !== undefined ? options.frames : extrudePath.computeFrenetFrames( steps, false );
+
+		// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);
+
+		binormal = new Vector3();
+		normal = new Vector3();
+		position2 = new Vector3();
+
+	}
+
+	// Safeguards if bevels are not enabled
+
+	if ( ! bevelEnabled ) {
+
+		bevelSegments = 0;
+		bevelThickness = 0;
+		bevelSize = 0;
+
+	}
+
+	// Variables initialization
+
+	var ahole, h, hl; // looping of holes
+	var scope = this;
+
+	var shapePoints = shape.extractPoints( curveSegments );
+
+	var vertices = shapePoints.shape;
+	var holes = shapePoints.holes;
+
+	var reverse = ! ShapeUtils.isClockWise( vertices );
+
+	if ( reverse ) {
+
+		vertices = vertices.reverse();
+
+		// Maybe we should also check if holes are in the opposite direction, just to be safe ...
+
+		for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+			ahole = holes[ h ];
+
+			if ( ShapeUtils.isClockWise( ahole ) ) {
+
+				holes[ h ] = ahole.reverse();
+
+			}
+
+		}
+
+	}
+
+
+	var faces = ShapeUtils.triangulateShape( vertices, holes );
+
+	/* Vertices */
+
+	var contour = vertices; // vertices has all points but contour has only points of circumference
+
+	for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+		ahole = holes[ h ];
+
+		vertices = vertices.concat( ahole );
+
+	}
+
+
+	function scalePt2( pt, vec, size ) {
+
+		if ( ! vec ) console.error( "THREE.ExtrudeGeometry: vec does not exist" );
+
+		return vec.clone().multiplyScalar( size ).add( pt );
+
+	}
+
+	var b, bs, t, z,
+		vert, vlen = vertices.length,
+		face, flen = faces.length;
+
+
+	// Find directions for point movement
+
+
+	function getBevelVec( inPt, inPrev, inNext ) {
+
+		// computes for inPt the corresponding point inPt' on a new contour
+		//   shifted by 1 unit (length of normalized vector) to the left
+		// if we walk along contour clockwise, this new contour is outside the old one
+		//
+		// inPt' is the intersection of the two lines parallel to the two
+		//  adjacent edges of inPt at a distance of 1 unit on the left side.
+
+		var v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt
+
+		// good reading for geometry algorithms (here: line-line intersection)
+		// http://geomalgorithms.com/a05-_intersect-1.html
+
+		var v_prev_x = inPt.x - inPrev.x,
+			v_prev_y = inPt.y - inPrev.y;
+		var v_next_x = inNext.x - inPt.x,
+			v_next_y = inNext.y - inPt.y;
+
+		var v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );
+
+		// check for collinear edges
+		var collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );
+
+		if ( Math.abs( collinear0 ) > Number.EPSILON ) {
+
+			// not collinear
+
+			// length of vectors for normalizing
+
+			var v_prev_len = Math.sqrt( v_prev_lensq );
+			var v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );
+
+			// shift adjacent points by unit vectors to the left
+
+			var ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
+			var ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );
+
+			var ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
+			var ptNextShift_y = ( inNext.y + v_next_x / v_next_len );
+
+			// scaling factor for v_prev to intersection point
+
+			var sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
+					( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /
+				( v_prev_x * v_next_y - v_prev_y * v_next_x );
+
+			// vector from inPt to intersection point
+
+			v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
+			v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );
+
+			// Don't normalize!, otherwise sharp corners become ugly
+			//  but prevent crazy spikes
+			var v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
+			if ( v_trans_lensq <= 2 ) {
+
+				return new Vector2( v_trans_x, v_trans_y );
+
+			} else {
+
+				shrink_by = Math.sqrt( v_trans_lensq / 2 );
+
+			}
+
+		} else {
+
+			// handle special case of collinear edges
+
+			var direction_eq = false; // assumes: opposite
+			if ( v_prev_x > Number.EPSILON ) {
+
+				if ( v_next_x > Number.EPSILON ) {
+
+					direction_eq = true;
+
+				}
+
+			} else {
+
+				if ( v_prev_x < - Number.EPSILON ) {
+
+					if ( v_next_x < - Number.EPSILON ) {
+
+						direction_eq = true;
+
+					}
+
+				} else {
+
+					if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {
+
+						direction_eq = true;
+
+					}
+
+				}
+
+			}
+
+			if ( direction_eq ) {
+
+				// console.log("Warning: lines are a straight sequence");
+				v_trans_x = - v_prev_y;
+				v_trans_y = v_prev_x;
+				shrink_by = Math.sqrt( v_prev_lensq );
+
+			} else {
+
+				// console.log("Warning: lines are a straight spike");
+				v_trans_x = v_prev_x;
+				v_trans_y = v_prev_y;
+				shrink_by = Math.sqrt( v_prev_lensq / 2 );
+
+			}
+
+		}
+
+		return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );
+
+	}
+
+
+	var contourMovements = [];
+
+	for ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {
+
+		if ( j === il ) j = 0;
+		if ( k === il ) k = 0;
+
+		//  (j)---(i)---(k)
+		// console.log('i,j,k', i, j , k)
+
+		contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );
+
+	}
+
+	var holesMovements = [],
+		oneHoleMovements, verticesMovements = contourMovements.concat();
+
+	for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+		ahole = holes[ h ];
+
+		oneHoleMovements = [];
+
+		for ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {
+
+			if ( j === il ) j = 0;
+			if ( k === il ) k = 0;
+
+			//  (j)---(i)---(k)
+			oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );
+
+		}
+
+		holesMovements.push( oneHoleMovements );
+		verticesMovements = verticesMovements.concat( oneHoleMovements );
+
+	}
+
+
+	// Loop bevelSegments, 1 for the front, 1 for the back
+
+	for ( b = 0; b < bevelSegments; b ++ ) {
+
+		//for ( b = bevelSegments; b > 0; b -- ) {
+
+		t = b / bevelSegments;
+		z = bevelThickness * Math.cos( t * Math.PI / 2 );
+		bs = bevelSize * Math.sin( t * Math.PI / 2 );
+
+		// contract shape
+
+		for ( i = 0, il = contour.length; i < il; i ++ ) {
+
+			vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
+
+			v( vert.x, vert.y, - z );
+
+		}
+
+		// expand holes
+
+		for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+			ahole = holes[ h ];
+			oneHoleMovements = holesMovements[ h ];
+
+			for ( i = 0, il = ahole.length; i < il; i ++ ) {
+
+				vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );
+
+				v( vert.x, vert.y, - z );
+
+			}
+
+		}
+
+	}
+
+	bs = bevelSize;
+
+	// Back facing vertices
+
+	for ( i = 0; i < vlen; i ++ ) {
+
+		vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];
+
+		if ( ! extrudeByPath ) {
+
+			v( vert.x, vert.y, 0 );
+
+		} else {
+
+			// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );
+
+			normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
+			binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );
+
+			position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );
+
+			v( position2.x, position2.y, position2.z );
+
+		}
+
+	}
+
+	// Add stepped vertices...
+	// Including front facing vertices
+
+	var s;
+
+	for ( s = 1; s <= steps; s ++ ) {
+
+		for ( i = 0; i < vlen; i ++ ) {
+
+			vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];
+
+			if ( ! extrudeByPath ) {
+
+				v( vert.x, vert.y, amount / steps * s );
+
+			} else {
+
+				// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
+
+				normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
+				binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );
+
+				position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );
+
+				v( position2.x, position2.y, position2.z );
+
+			}
+
+		}
+
+	}
+
+
+	// Add bevel segments planes
+
+	//for ( b = 1; b <= bevelSegments; b ++ ) {
+	for ( b = bevelSegments - 1; b >= 0; b -- ) {
+
+		t = b / bevelSegments;
+		z = bevelThickness * Math.cos( t * Math.PI / 2 );
+		bs = bevelSize * Math.sin( t * Math.PI / 2 );
+
+		// contract shape
+
+		for ( i = 0, il = contour.length; i < il; i ++ ) {
+
+			vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
+			v( vert.x, vert.y, amount + z );
+
+		}
+
+		// expand holes
+
+		for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+			ahole = holes[ h ];
+			oneHoleMovements = holesMovements[ h ];
+
+			for ( i = 0, il = ahole.length; i < il; i ++ ) {
+
+				vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );
+
+				if ( ! extrudeByPath ) {
+
+					v( vert.x, vert.y, amount + z );
+
+				} else {
+
+					v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );
+
+				}
+
+			}
+
+		}
+
+	}
+
+	/* Faces */
+
+	// Top and bottom faces
+
+	buildLidFaces();
+
+	// Sides faces
+
+	buildSideFaces();
+
+
+	/////  Internal functions
+
+	function buildLidFaces() {
+
+		var start = verticesArray.length / 3;
+
+		if ( bevelEnabled ) {
+
+			var layer = 0; // steps + 1
+			var offset = vlen * layer;
+
+			// Bottom faces
+
+			for ( i = 0; i < flen; i ++ ) {
+
+				face = faces[ i ];
+				f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );
+
+			}
+
+			layer = steps + bevelSegments * 2;
+			offset = vlen * layer;
+
+			// Top faces
+
+			for ( i = 0; i < flen; i ++ ) {
+
+				face = faces[ i ];
+				f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );
+
+			}
+
+		} else {
+
+			// Bottom faces
+
+			for ( i = 0; i < flen; i ++ ) {
+
+				face = faces[ i ];
+				f3( face[ 2 ], face[ 1 ], face[ 0 ] );
+
+			}
+
+			// Top faces
+
+			for ( i = 0; i < flen; i ++ ) {
+
+				face = faces[ i ];
+				f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );
+
+			}
+
+		}
+
+		scope.addGroup( start, verticesArray.length / 3 - start, options.material !== undefined ? options.material : 0 );
+
+	}
+
+	// Create faces for the z-sides of the shape
+
+	function buildSideFaces() {
+
+		var start = verticesArray.length / 3;
+		var layeroffset = 0;
+		sidewalls( contour, layeroffset );
+		layeroffset += contour.length;
+
+		for ( h = 0, hl = holes.length; h < hl; h ++ ) {
+
+			ahole = holes[ h ];
+			sidewalls( ahole, layeroffset );
+
+			//, true
+			layeroffset += ahole.length;
+
+		}
+
+
+		scope.addGroup( start, verticesArray.length / 3 - start, options.extrudeMaterial !== undefined ? options.extrudeMaterial : 1 );
+
+
+	}
+
+	function sidewalls( contour, layeroffset ) {
+
+		var j, k;
+		i = contour.length;
+
+		while ( -- i >= 0 ) {
+
+			j = i;
+			k = i - 1;
+			if ( k < 0 ) k = contour.length - 1;
+
+			//console.log('b', i,j, i-1, k,vertices.length);
+
+			var s = 0,
+				sl = steps + bevelSegments * 2;
+
+			for ( s = 0; s < sl; s ++ ) {
+
+				var slen1 = vlen * s;
+				var slen2 = vlen * ( s + 1 );
+
+				var a = layeroffset + j + slen1,
+					b = layeroffset + k + slen1,
+					c = layeroffset + k + slen2,
+					d = layeroffset + j + slen2;
+
+				f4( a, b, c, d );
+
+			}
+
+		}
+
+	}
+
+	function v( x, y, z ) {
+
+		placeholder.push( x );
+		placeholder.push( y );
+		placeholder.push( z );
+
+	}
+
+
+	function f3( a, b, c ) {
+
+		addVertex( a );
+		addVertex( b );
+		addVertex( c );
+
+		var nextIndex = verticesArray.length / 3;
+		var uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );
+
+		addUV( uvs[ 0 ] );
+		addUV( uvs[ 1 ] );
+		addUV( uvs[ 2 ] );
+
+	}
+
+	function f4( a, b, c, d ) {
+
+		addVertex( a );
+		addVertex( b );
+		addVertex( d );
+
+		addVertex( b );
+		addVertex( c );
+		addVertex( d );
+
+
+		var nextIndex = verticesArray.length / 3;
+		var uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );
+
+		addUV( uvs[ 0 ] );
+		addUV( uvs[ 1 ] );
+		addUV( uvs[ 3 ] );
+
+		addUV( uvs[ 1 ] );
+		addUV( uvs[ 2 ] );
+		addUV( uvs[ 3 ] );
+
+	}
+
+	function addVertex( index ) {
+
+		indicesArray.push( verticesArray.length / 3 );
+		verticesArray.push( placeholder[ index * 3 + 0 ] );
+		verticesArray.push( placeholder[ index * 3 + 1 ] );
+		verticesArray.push( placeholder[ index * 3 + 2 ] );
+
+	}
+
+
+	function addUV( vector2 ) {
+
+		uvArray.push( vector2.x );
+		uvArray.push( vector2.y );
+
+	}
+
+	if ( ! options.arrays ) {
+
+		this.setIndex( indicesArray );
+		this.addAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );
+		this.addAttribute( 'uv', new Float32BufferAttribute( options.arrays.uv, 2 ) );
+
+	}
+
+};
+
+ExtrudeGeometry.WorldUVGenerator = {
+
+	generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {
+
+		var a_x = vertices[ indexA * 3 ];
+		var a_y = vertices[ indexA * 3 + 1 ];
+		var b_x = vertices[ indexB * 3 ];
+		var b_y = vertices[ indexB * 3 + 1 ];
+		var c_x = vertices[ indexC * 3 ];
+		var c_y = vertices[ indexC * 3 + 1 ];
+
+		return [
+			new Vector2( a_x, a_y ),
+			new Vector2( b_x, b_y ),
+			new Vector2( c_x, c_y )
+		];
+
+	},
+
+	generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {
+
+		var a_x = vertices[ indexA * 3 ];
+		var a_y = vertices[ indexA * 3 + 1 ];
+		var a_z = vertices[ indexA * 3 + 2 ];
+		var b_x = vertices[ indexB * 3 ];
+		var b_y = vertices[ indexB * 3 + 1 ];
+		var b_z = vertices[ indexB * 3 + 2 ];
+		var c_x = vertices[ indexC * 3 ];
+		var c_y = vertices[ indexC * 3 + 1 ];
+		var c_z = vertices[ indexC * 3 + 2 ];
+		var d_x = vertices[ indexD * 3 ];
+		var d_y = vertices[ indexD * 3 + 1 ];
+		var d_z = vertices[ indexD * 3 + 2 ];
+
+		if ( Math.abs( a_y - b_y ) < 0.01 ) {
+
+			return [
+				new Vector2( a_x, 1 - a_z ),
+				new Vector2( b_x, 1 - b_z ),
+				new Vector2( c_x, 1 - c_z ),
+				new Vector2( d_x, 1 - d_z )
+			];
+
+		} else {
+
+			return [
+				new Vector2( a_y, 1 - a_z ),
+				new Vector2( b_y, 1 - b_z ),
+				new Vector2( c_y, 1 - c_z ),
+				new Vector2( d_y, 1 - d_z )
+			];
+
+		}
+
+	}
+};
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * Text = 3D Text
+ *
+ * parameters = {
+ *  font: <THREE.Font>, // font
+ *
+ *  size: <float>, // size of the text
+ *  height: <float>, // thickness to extrude text
+ *  curveSegments: <int>, // number of points on the curves
+ *
+ *  bevelEnabled: <bool>, // turn on bevel
+ *  bevelThickness: <float>, // how deep into text bevel goes
+ *  bevelSize: <float> // how far from text outline is bevel
+ * }
+ */
+
+// TextGeometry
+
+function TextGeometry( text, parameters ) {
+
+	Geometry.call( this );
+
+	this.type = 'TextGeometry';
+
+	this.parameters = {
+		text: text,
+		parameters: parameters
+	};
+
+	this.fromBufferGeometry( new TextBufferGeometry( text, parameters ) );
+	this.mergeVertices();
+
+}
+
+TextGeometry.prototype = Object.create( Geometry.prototype );
+TextGeometry.prototype.constructor = TextGeometry;
+
+// TextBufferGeometry
+
+function TextBufferGeometry( text, parameters ) {
+
+	parameters = parameters || {};
+
+	var font = parameters.font;
+
+	if ( ! ( font && font.isFont ) ) {
+
+		console.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );
+		return new Geometry();
+
+	}
+
+	var shapes = font.generateShapes( text, parameters.size, parameters.curveSegments );
+
+	// translate parameters to ExtrudeGeometry API
+
+	parameters.amount = parameters.height !== undefined ? parameters.height : 50;
+
+	// defaults
+
+	if ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;
+	if ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;
+	if ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;
+
+	ExtrudeBufferGeometry.call( this, shapes, parameters );
+
+	this.type = 'TextBufferGeometry';
+
+}
+
+TextBufferGeometry.prototype = Object.create( ExtrudeBufferGeometry.prototype );
+TextBufferGeometry.prototype.constructor = TextBufferGeometry;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author benaadams / https://twitter.com/ben_a_adams
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// SphereGeometry
+
+function SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {
+
+	Geometry.call( this );
+
+	this.type = 'SphereGeometry';
+
+	this.parameters = {
+		radius: radius,
+		widthSegments: widthSegments,
+		heightSegments: heightSegments,
+		phiStart: phiStart,
+		phiLength: phiLength,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+	this.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );
+	this.mergeVertices();
+
+}
+
+SphereGeometry.prototype = Object.create( Geometry.prototype );
+SphereGeometry.prototype.constructor = SphereGeometry;
+
+// SphereBufferGeometry
+
+function SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'SphereBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		widthSegments: widthSegments,
+		heightSegments: heightSegments,
+		phiStart: phiStart,
+		phiLength: phiLength,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+	radius = radius || 1;
+
+	widthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );
+	heightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );
+
+	phiStart = phiStart !== undefined ? phiStart : 0;
+	phiLength = phiLength !== undefined ? phiLength : Math.PI * 2;
+
+	thetaStart = thetaStart !== undefined ? thetaStart : 0;
+	thetaLength = thetaLength !== undefined ? thetaLength : Math.PI;
+
+	var thetaEnd = thetaStart + thetaLength;
+
+	var ix, iy;
+
+	var index = 0;
+	var grid = [];
+
+	var vertex = new Vector3();
+	var normal = new Vector3();
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// generate vertices, normals and uvs
+
+	for ( iy = 0; iy <= heightSegments; iy ++ ) {
+
+		var verticesRow = [];
+
+		var v = iy / heightSegments;
+
+		for ( ix = 0; ix <= widthSegments; ix ++ ) {
+
+			var u = ix / widthSegments;
+
+			// vertex
+
+			vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
+			vertex.y = radius * Math.cos( thetaStart + v * thetaLength );
+			vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
+
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			// normal
+
+			normal.set( vertex.x, vertex.y, vertex.z ).normalize();
+			normals.push( normal.x, normal.y, normal.z );
+
+			// uv
+
+			uvs.push( u, 1 - v );
+
+			verticesRow.push( index ++ );
+
+		}
+
+		grid.push( verticesRow );
+
+	}
+
+	// indices
+
+	for ( iy = 0; iy < heightSegments; iy ++ ) {
+
+		for ( ix = 0; ix < widthSegments; ix ++ ) {
+
+			var a = grid[ iy ][ ix + 1 ];
+			var b = grid[ iy ][ ix ];
+			var c = grid[ iy + 1 ][ ix ];
+			var d = grid[ iy + 1 ][ ix + 1 ];
+
+			if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );
+			if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );
+
+		}
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+}
+
+SphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+SphereBufferGeometry.prototype.constructor = SphereBufferGeometry;
+
+/**
+ * @author Kaleb Murphy
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// RingGeometry
+
+function RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {
+
+	Geometry.call( this );
+
+	this.type = 'RingGeometry';
+
+	this.parameters = {
+		innerRadius: innerRadius,
+		outerRadius: outerRadius,
+		thetaSegments: thetaSegments,
+		phiSegments: phiSegments,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+	this.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );
+	this.mergeVertices();
+
+}
+
+RingGeometry.prototype = Object.create( Geometry.prototype );
+RingGeometry.prototype.constructor = RingGeometry;
+
+// RingBufferGeometry
+
+function RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'RingBufferGeometry';
+
+	this.parameters = {
+		innerRadius: innerRadius,
+		outerRadius: outerRadius,
+		thetaSegments: thetaSegments,
+		phiSegments: phiSegments,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+	innerRadius = innerRadius || 0.5;
+	outerRadius = outerRadius || 1;
+
+	thetaStart = thetaStart !== undefined ? thetaStart : 0;
+	thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
+
+	thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;
+	phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// some helper variables
+
+	var segment;
+	var radius = innerRadius;
+	var radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
+	var vertex = new Vector3();
+	var uv = new Vector2();
+	var j, i;
+
+	// generate vertices, normals and uvs
+
+	for ( j = 0; j <= phiSegments; j ++ ) {
+
+		for ( i = 0; i <= thetaSegments; i ++ ) {
+
+			// values are generate from the inside of the ring to the outside
+
+			segment = thetaStart + i / thetaSegments * thetaLength;
+
+			// vertex
+
+			vertex.x = radius * Math.cos( segment );
+			vertex.y = radius * Math.sin( segment );
+
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			// normal
+
+			normals.push( 0, 0, 1 );
+
+			// uv
+
+			uv.x = ( vertex.x / outerRadius + 1 ) / 2;
+			uv.y = ( vertex.y / outerRadius + 1 ) / 2;
+
+			uvs.push( uv.x, uv.y );
+
+		}
+
+		// increase the radius for next row of vertices
+
+		radius += radiusStep;
+
+	}
+
+	// indices
+
+	for ( j = 0; j < phiSegments; j ++ ) {
+
+		var thetaSegmentLevel = j * ( thetaSegments + 1 );
+
+		for ( i = 0; i < thetaSegments; i ++ ) {
+
+			segment = i + thetaSegmentLevel;
+
+			var a = segment;
+			var b = segment + thetaSegments + 1;
+			var c = segment + thetaSegments + 2;
+			var d = segment + 1;
+
+			// faces
+
+			indices.push( a, b, d );
+			indices.push( b, c, d );
+
+		}
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+}
+
+RingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+RingBufferGeometry.prototype.constructor = RingBufferGeometry;
+
+/**
+ * @author astrodud / http://astrodud.isgreat.org/
+ * @author zz85 / https://github.com/zz85
+ * @author bhouston / http://clara.io
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// LatheGeometry
+
+function LatheGeometry( points, segments, phiStart, phiLength ) {
+
+	Geometry.call( this );
+
+	this.type = 'LatheGeometry';
+
+	this.parameters = {
+		points: points,
+		segments: segments,
+		phiStart: phiStart,
+		phiLength: phiLength
+	};
+
+	this.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );
+	this.mergeVertices();
+
+}
+
+LatheGeometry.prototype = Object.create( Geometry.prototype );
+LatheGeometry.prototype.constructor = LatheGeometry;
+
+// LatheBufferGeometry
+
+function LatheBufferGeometry( points, segments, phiStart, phiLength ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'LatheBufferGeometry';
+
+	this.parameters = {
+		points: points,
+		segments: segments,
+		phiStart: phiStart,
+		phiLength: phiLength
+	};
+
+	segments = Math.floor( segments ) || 12;
+	phiStart = phiStart || 0;
+	phiLength = phiLength || Math.PI * 2;
+
+	// clamp phiLength so it's in range of [ 0, 2PI ]
+
+	phiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );
+
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var uvs = [];
+
+	// helper variables
+
+	var base;
+	var inverseSegments = 1.0 / segments;
+	var vertex = new Vector3();
+	var uv = new Vector2();
+	var i, j;
+
+	// generate vertices and uvs
+
+	for ( i = 0; i <= segments; i ++ ) {
+
+		var phi = phiStart + i * inverseSegments * phiLength;
+
+		var sin = Math.sin( phi );
+		var cos = Math.cos( phi );
+
+		for ( j = 0; j <= ( points.length - 1 ); j ++ ) {
+
+			// vertex
+
+			vertex.x = points[ j ].x * sin;
+			vertex.y = points[ j ].y;
+			vertex.z = points[ j ].x * cos;
+
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			// uv
+
+			uv.x = i / segments;
+			uv.y = j / ( points.length - 1 );
+
+			uvs.push( uv.x, uv.y );
+
+
+		}
+
+	}
+
+	// indices
+
+	for ( i = 0; i < segments; i ++ ) {
+
+		for ( j = 0; j < ( points.length - 1 ); j ++ ) {
+
+			base = j + i * points.length;
+
+			var a = base;
+			var b = base + points.length;
+			var c = base + points.length + 1;
+			var d = base + 1;
+
+			// faces
+
+			indices.push( a, b, d );
+			indices.push( b, c, d );
+
+		}
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	// generate normals
+
+	this.computeVertexNormals();
+
+	// if the geometry is closed, we need to average the normals along the seam.
+	// because the corresponding vertices are identical (but still have different UVs).
+
+	if ( phiLength === Math.PI * 2 ) {
+
+		var normals = this.attributes.normal.array;
+		var n1 = new Vector3();
+		var n2 = new Vector3();
+		var n = new Vector3();
+
+		// this is the buffer offset for the last line of vertices
+
+		base = segments * points.length * 3;
+
+		for ( i = 0, j = 0; i < points.length; i ++, j += 3 ) {
+
+			// select the normal of the vertex in the first line
+
+			n1.x = normals[ j + 0 ];
+			n1.y = normals[ j + 1 ];
+			n1.z = normals[ j + 2 ];
+
+			// select the normal of the vertex in the last line
+
+			n2.x = normals[ base + j + 0 ];
+			n2.y = normals[ base + j + 1 ];
+			n2.z = normals[ base + j + 2 ];
+
+			// average normals
+
+			n.addVectors( n1, n2 ).normalize();
+
+			// assign the new values to both normals
+
+			normals[ j + 0 ] = normals[ base + j + 0 ] = n.x;
+			normals[ j + 1 ] = normals[ base + j + 1 ] = n.y;
+			normals[ j + 2 ] = normals[ base + j + 2 ] = n.z;
+
+		}
+
+	}
+
+}
+
+LatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+LatheBufferGeometry.prototype.constructor = LatheBufferGeometry;
+
+/**
+ * @author jonobr1 / http://jonobr1.com
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// ShapeGeometry
+
+function ShapeGeometry( shapes, curveSegments ) {
+
+	Geometry.call( this );
+
+	this.type = 'ShapeGeometry';
+
+	if ( typeof curveSegments === 'object' ) {
+
+		console.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' );
+
+		curveSegments = curveSegments.curveSegments;
+
+	}
+
+	this.parameters = {
+		shapes: shapes,
+		curveSegments: curveSegments
+	};
+
+	this.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) );
+	this.mergeVertices();
+
+}
+
+ShapeGeometry.prototype = Object.create( Geometry.prototype );
+ShapeGeometry.prototype.constructor = ShapeGeometry;
+
+// ShapeBufferGeometry
+
+function ShapeBufferGeometry( shapes, curveSegments ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'ShapeBufferGeometry';
+
+	this.parameters = {
+		shapes: shapes,
+		curveSegments: curveSegments
+	};
+
+	curveSegments = curveSegments || 12;
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// helper variables
+
+	var groupStart = 0;
+	var groupCount = 0;
+
+	// allow single and array values for "shapes" parameter
+
+	if ( Array.isArray( shapes ) === false ) {
+
+		addShape( shapes );
+
+	} else {
+
+		for ( var i = 0; i < shapes.length; i ++ ) {
+
+			addShape( shapes[ i ] );
+
+			this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support
+
+			groupStart += groupCount;
+			groupCount = 0;
+
+		}
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+
+	// helper functions
+
+	function addShape( shape ) {
+
+		var i, l, shapeHole;
+
+		var indexOffset = vertices.length / 3;
+		var points = shape.extractPoints( curveSegments );
+
+		var shapeVertices = points.shape;
+		var shapeHoles = points.holes;
+
+		// check direction of vertices
+
+		if ( ShapeUtils.isClockWise( shapeVertices ) === false ) {
+
+			shapeVertices = shapeVertices.reverse();
+
+			// also check if holes are in the opposite direction
+
+			for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {
+
+				shapeHole = shapeHoles[ i ];
+
+				if ( ShapeUtils.isClockWise( shapeHole ) === true ) {
+
+					shapeHoles[ i ] = shapeHole.reverse();
+
+				}
+
+			}
+
+		}
+
+		var faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );
+
+		// join vertices of inner and outer paths to a single array
+
+		for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {
+
+			shapeHole = shapeHoles[ i ];
+			shapeVertices = shapeVertices.concat( shapeHole );
+
+		}
+
+		// vertices, normals, uvs
+
+		for ( i = 0, l = shapeVertices.length; i < l; i ++ ) {
+
+			var vertex = shapeVertices[ i ];
+
+			vertices.push( vertex.x, vertex.y, 0 );
+			normals.push( 0, 0, 1 );
+			uvs.push( vertex.x, vertex.y ); // world uvs
+
+		}
+
+		// incides
+
+		for ( i = 0, l = faces.length; i < l; i ++ ) {
+
+			var face = faces[ i ];
+
+			var a = face[ 0 ] + indexOffset;
+			var b = face[ 1 ] + indexOffset;
+			var c = face[ 2 ] + indexOffset;
+
+			indices.push( a, b, c );
+			groupCount += 3;
+
+		}
+
+	}
+
+}
+
+ShapeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+ShapeBufferGeometry.prototype.constructor = ShapeBufferGeometry;
+
+/**
+ * @author WestLangley / http://github.com/WestLangley
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+function EdgesGeometry( geometry, thresholdAngle ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'EdgesGeometry';
+
+	this.parameters = {
+		thresholdAngle: thresholdAngle
+	};
+
+	thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;
+
+	// buffer
+
+	var vertices = [];
+
+	// helper variables
+
+	var thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );
+	var edge = [ 0, 0 ], edges = {}, edge1, edge2;
+	var key, keys = [ 'a', 'b', 'c' ];
+
+	// prepare source geometry
+
+	var geometry2;
+
+	if ( geometry.isBufferGeometry ) {
+
+		geometry2 = new Geometry();
+		geometry2.fromBufferGeometry( geometry );
+
+	} else {
+
+		geometry2 = geometry.clone();
+
+	}
+
+	geometry2.mergeVertices();
+	geometry2.computeFaceNormals();
+
+	var sourceVertices = geometry2.vertices;
+	var faces = geometry2.faces;
+
+	// now create a data structure where each entry represents an edge with its adjoining faces
+
+	for ( var i = 0, l = faces.length; i < l; i ++ ) {
+
+		var face = faces[ i ];
+
+		for ( var j = 0; j < 3; j ++ ) {
+
+			edge1 = face[ keys[ j ] ];
+			edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
+			edge[ 0 ] = Math.min( edge1, edge2 );
+			edge[ 1 ] = Math.max( edge1, edge2 );
+
+			key = edge[ 0 ] + ',' + edge[ 1 ];
+
+			if ( edges[ key ] === undefined ) {
+
+				edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ], face1: i, face2: undefined };
+
+			} else {
+
+				edges[ key ].face2 = i;
+
+			}
+
+		}
+
+	}
+
+	// generate vertices
+
+	for ( key in edges ) {
+
+		var e = edges[ key ];
+
+		// an edge is only rendered if the angle (in degrees) between the face normals of the adjoining faces exceeds this value. default = 1 degree.
+
+		if ( e.face2 === undefined || faces[ e.face1 ].normal.dot( faces[ e.face2 ].normal ) <= thresholdDot ) {
+
+			var vertex = sourceVertices[ e.index1 ];
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			vertex = sourceVertices[ e.index2 ];
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+		}
+
+	}
+
+	// build geometry
+
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+
+}
+
+EdgesGeometry.prototype = Object.create( BufferGeometry.prototype );
+EdgesGeometry.prototype.constructor = EdgesGeometry;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+// CylinderGeometry
+
+function CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
+
+	Geometry.call( this );
+
+	this.type = 'CylinderGeometry';
+
+	this.parameters = {
+		radiusTop: radiusTop,
+		radiusBottom: radiusBottom,
+		height: height,
+		radialSegments: radialSegments,
+		heightSegments: heightSegments,
+		openEnded: openEnded,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+	this.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );
+	this.mergeVertices();
+
+}
+
+CylinderGeometry.prototype = Object.create( Geometry.prototype );
+CylinderGeometry.prototype.constructor = CylinderGeometry;
+
+// CylinderBufferGeometry
+
+function CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'CylinderBufferGeometry';
+
+	this.parameters = {
+		radiusTop: radiusTop,
+		radiusBottom: radiusBottom,
+		height: height,
+		radialSegments: radialSegments,
+		heightSegments: heightSegments,
+		openEnded: openEnded,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+	var scope = this;
+
+	radiusTop = radiusTop !== undefined ? radiusTop : 1;
+	radiusBottom = radiusBottom !== undefined ? radiusBottom : 1;
+	height = height || 1;
+
+	radialSegments = Math.floor( radialSegments ) || 8;
+	heightSegments = Math.floor( heightSegments ) || 1;
+
+	openEnded = openEnded !== undefined ? openEnded : false;
+	thetaStart = thetaStart !== undefined ? thetaStart : 0.0;
+	thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// helper variables
+
+	var index = 0;
+	var indexArray = [];
+	var halfHeight = height / 2;
+	var groupStart = 0;
+
+	// generate geometry
+
+	generateTorso();
+
+	if ( openEnded === false ) {
+
+		if ( radiusTop > 0 ) generateCap( true );
+		if ( radiusBottom > 0 ) generateCap( false );
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+	function generateTorso() {
+
+		var x, y;
+		var normal = new Vector3();
+		var vertex = new Vector3();
+
+		var groupCount = 0;
+
+		// this will be used to calculate the normal
+		var slope = ( radiusBottom - radiusTop ) / height;
+
+		// generate vertices, normals and uvs
+
+		for ( y = 0; y <= heightSegments; y ++ ) {
+
+			var indexRow = [];
+
+			var v = y / heightSegments;
+
+			// calculate the radius of the current row
+
+			var radius = v * ( radiusBottom - radiusTop ) + radiusTop;
+
+			for ( x = 0; x <= radialSegments; x ++ ) {
+
+				var u = x / radialSegments;
+
+				var theta = u * thetaLength + thetaStart;
+
+				var sinTheta = Math.sin( theta );
+				var cosTheta = Math.cos( theta );
+
+				// vertex
+
+				vertex.x = radius * sinTheta;
+				vertex.y = - v * height + halfHeight;
+				vertex.z = radius * cosTheta;
+				vertices.push( vertex.x, vertex.y, vertex.z );
+
+				// normal
+
+				normal.set( sinTheta, slope, cosTheta ).normalize();
+				normals.push( normal.x, normal.y, normal.z );
+
+				// uv
+
+				uvs.push( u, 1 - v );
+
+				// save index of vertex in respective row
+
+				indexRow.push( index ++ );
+
+			}
+
+			// now save vertices of the row in our index array
+
+			indexArray.push( indexRow );
+
+		}
+
+		// generate indices
+
+		for ( x = 0; x < radialSegments; x ++ ) {
+
+			for ( y = 0; y < heightSegments; y ++ ) {
+
+				// we use the index array to access the correct indices
+
+				var a = indexArray[ y ][ x ];
+				var b = indexArray[ y + 1 ][ x ];
+				var c = indexArray[ y + 1 ][ x + 1 ];
+				var d = indexArray[ y ][ x + 1 ];
+
+				// faces
+
+				indices.push( a, b, d );
+				indices.push( b, c, d );
+
+				// update group counter
+
+				groupCount += 6;
+
+			}
+
+		}
+
+		// add a group to the geometry. this will ensure multi material support
+
+		scope.addGroup( groupStart, groupCount, 0 );
+
+		// calculate new start value for groups
+
+		groupStart += groupCount;
+
+	}
+
+	function generateCap( top ) {
+
+		var x, centerIndexStart, centerIndexEnd;
+
+		var uv = new Vector2();
+		var vertex = new Vector3();
+
+		var groupCount = 0;
+
+		var radius = ( top === true ) ? radiusTop : radiusBottom;
+		var sign = ( top === true ) ? 1 : - 1;
+
+		// save the index of the first center vertex
+		centerIndexStart = index;
+
+		// first we generate the center vertex data of the cap.
+		// because the geometry needs one set of uvs per face,
+		// we must generate a center vertex per face/segment
+
+		for ( x = 1; x <= radialSegments; x ++ ) {
+
+			// vertex
+
+			vertices.push( 0, halfHeight * sign, 0 );
+
+			// normal
+
+			normals.push( 0, sign, 0 );
+
+			// uv
+
+			uvs.push( 0.5, 0.5 );
+
+			// increase index
+
+			index ++;
+
+		}
+
+		// save the index of the last center vertex
+
+		centerIndexEnd = index;
+
+		// now we generate the surrounding vertices, normals and uvs
+
+		for ( x = 0; x <= radialSegments; x ++ ) {
+
+			var u = x / radialSegments;
+			var theta = u * thetaLength + thetaStart;
+
+			var cosTheta = Math.cos( theta );
+			var sinTheta = Math.sin( theta );
+
+			// vertex
+
+			vertex.x = radius * sinTheta;
+			vertex.y = halfHeight * sign;
+			vertex.z = radius * cosTheta;
+			vertices.push( vertex.x, vertex.y, vertex.z );
+
+			// normal
+
+			normals.push( 0, sign, 0 );
+
+			// uv
+
+			uv.x = ( cosTheta * 0.5 ) + 0.5;
+			uv.y = ( sinTheta * 0.5 * sign ) + 0.5;
+			uvs.push( uv.x, uv.y );
+
+			// increase index
+
+			index ++;
+
+		}
+
+		// generate indices
+
+		for ( x = 0; x < radialSegments; x ++ ) {
+
+			var c = centerIndexStart + x;
+			var i = centerIndexEnd + x;
+
+			if ( top === true ) {
+
+				// face top
+
+				indices.push( i, i + 1, c );
+
+			} else {
+
+				// face bottom
+
+				indices.push( i + 1, i, c );
+
+			}
+
+			groupCount += 3;
+
+		}
+
+		// add a group to the geometry. this will ensure multi material support
+
+		scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );
+
+		// calculate new start value for groups
+
+		groupStart += groupCount;
+
+	}
+
+}
+
+CylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+CylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;
+
+/**
+ * @author abelnation / http://github.com/abelnation
+ */
+
+// ConeGeometry
+
+function ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
+
+	CylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
+
+	this.type = 'ConeGeometry';
+
+	this.parameters = {
+		radius: radius,
+		height: height,
+		radialSegments: radialSegments,
+		heightSegments: heightSegments,
+		openEnded: openEnded,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+}
+
+ConeGeometry.prototype = Object.create( CylinderGeometry.prototype );
+ConeGeometry.prototype.constructor = ConeGeometry;
+
+// ConeBufferGeometry
+
+function ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
+
+	CylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
+
+	this.type = 'ConeBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		height: height,
+		radialSegments: radialSegments,
+		heightSegments: heightSegments,
+		openEnded: openEnded,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+}
+
+ConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );
+ConeBufferGeometry.prototype.constructor = ConeBufferGeometry;
+
+/**
+ * @author benaadams / https://twitter.com/ben_a_adams
+ * @author Mugen87 / https://github.com/Mugen87
+ * @author hughes
+ */
+
+// CircleGeometry
+
+function CircleGeometry( radius, segments, thetaStart, thetaLength ) {
+
+	Geometry.call( this );
+
+	this.type = 'CircleGeometry';
+
+	this.parameters = {
+		radius: radius,
+		segments: segments,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+	this.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );
+	this.mergeVertices();
+
+}
+
+CircleGeometry.prototype = Object.create( Geometry.prototype );
+CircleGeometry.prototype.constructor = CircleGeometry;
+
+// CircleBufferGeometry
+
+function CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {
+
+	BufferGeometry.call( this );
+
+	this.type = 'CircleBufferGeometry';
+
+	this.parameters = {
+		radius: radius,
+		segments: segments,
+		thetaStart: thetaStart,
+		thetaLength: thetaLength
+	};
+
+	radius = radius || 1;
+	segments = segments !== undefined ? Math.max( 3, segments ) : 8;
+
+	thetaStart = thetaStart !== undefined ? thetaStart : 0;
+	thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
+
+	// buffers
+
+	var indices = [];
+	var vertices = [];
+	var normals = [];
+	var uvs = [];
+
+	// helper variables
+
+	var i, s;
+	var vertex = new Vector3();
+	var uv = new Vector2();
+
+	// center point
+
+	vertices.push( 0, 0, 0 );
+	normals.push( 0, 0, 1 );
+	uvs.push( 0.5, 0.5 );
+
+	for ( s = 0, i = 3; s <= segments; s ++, i += 3 ) {
+
+		var segment = thetaStart + s / segments * thetaLength;
+
+		// vertex
+
+		vertex.x = radius * Math.cos( segment );
+		vertex.y = radius * Math.sin( segment );
+
+		vertices.push( vertex.x, vertex.y, vertex.z );
+
+		// normal
+
+		normals.push( 0, 0, 1 );
+
+		// uvs
+
+		uv.x = ( vertices[ i ] / radius + 1 ) / 2;
+		uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;
+
+		uvs.push( uv.x, uv.y );
+
+	}
+
+	// indices
+
+	for ( i = 1; i <= segments; i ++ ) {
+
+		indices.push( i, i + 1, 0 );
+
+	}
+
+	// build geometry
+
+	this.setIndex( indices );
+	this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
+	this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
+
+}
+
+CircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
+CircleBufferGeometry.prototype.constructor = CircleBufferGeometry;
+
+
+
+var Geometries = Object.freeze({
+	WireframeGeometry: WireframeGeometry,
+	ParametricGeometry: ParametricGeometry,
+	ParametricBufferGeometry: ParametricBufferGeometry,
+	TetrahedronGeometry: TetrahedronGeometry,
+	TetrahedronBufferGeometry: TetrahedronBufferGeometry,
+	OctahedronGeometry: OctahedronGeometry,
+	OctahedronBufferGeometry: OctahedronBufferGeometry,
+	IcosahedronGeometry: IcosahedronGeometry,
+	IcosahedronBufferGeometry: IcosahedronBufferGeometry,
+	DodecahedronGeometry: DodecahedronGeometry,
+	DodecahedronBufferGeometry: DodecahedronBufferGeometry,
+	PolyhedronGeometry: PolyhedronGeometry,
+	PolyhedronBufferGeometry: PolyhedronBufferGeometry,
+	TubeGeometry: TubeGeometry,
+	TubeBufferGeometry: TubeBufferGeometry,
+	TorusKnotGeometry: TorusKnotGeometry,
+	TorusKnotBufferGeometry: TorusKnotBufferGeometry,
+	TorusGeometry: TorusGeometry,
+	TorusBufferGeometry: TorusBufferGeometry,
+	TextGeometry: TextGeometry,
+	TextBufferGeometry: TextBufferGeometry,
+	SphereGeometry: SphereGeometry,
+	SphereBufferGeometry: SphereBufferGeometry,
+	RingGeometry: RingGeometry,
+	RingBufferGeometry: RingBufferGeometry,
+	PlaneGeometry: PlaneGeometry,
+	PlaneBufferGeometry: PlaneBufferGeometry,
+	LatheGeometry: LatheGeometry,
+	LatheBufferGeometry: LatheBufferGeometry,
+	ShapeGeometry: ShapeGeometry,
+	ShapeBufferGeometry: ShapeBufferGeometry,
+	ExtrudeGeometry: ExtrudeGeometry,
+	ExtrudeBufferGeometry: ExtrudeBufferGeometry,
+	EdgesGeometry: EdgesGeometry,
+	ConeGeometry: ConeGeometry,
+	ConeBufferGeometry: ConeBufferGeometry,
+	CylinderGeometry: CylinderGeometry,
+	CylinderBufferGeometry: CylinderBufferGeometry,
+	CircleGeometry: CircleGeometry,
+	CircleBufferGeometry: CircleBufferGeometry,
+	BoxGeometry: BoxGeometry,
+	BoxBufferGeometry: BoxBufferGeometry
+});
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ *
+ * parameters = {
+ *  color: <THREE.Color>,
+ *  opacity: <float>
+ * }
+ */
+
+function ShadowMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'ShadowMaterial';
+
+	this.color = new Color( 0x000000 );
+	this.opacity = 1.0;
+
+	this.lights = true;
+	this.transparent = true;
+
+	this.setValues( parameters );
+
+}
+
+ShadowMaterial.prototype = Object.create( Material.prototype );
+ShadowMaterial.prototype.constructor = ShadowMaterial;
+
+ShadowMaterial.prototype.isShadowMaterial = true;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function RawShaderMaterial( parameters ) {
+
+	ShaderMaterial.call( this, parameters );
+
+	this.type = 'RawShaderMaterial';
+
+}
+
+RawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );
+RawShaderMaterial.prototype.constructor = RawShaderMaterial;
+
+RawShaderMaterial.prototype.isRawShaderMaterial = true;
+
+/**
+ * @author WestLangley / http://github.com/WestLangley
+ *
+ * parameters = {
+ *  color: <hex>,
+ *  roughness: <float>,
+ *  metalness: <float>,
+ *  opacity: <float>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  emissive: <hex>,
+ *  emissiveIntensity: <float>
+ *  emissiveMap: new THREE.Texture( <Image> ),
+ *
+ *  bumpMap: new THREE.Texture( <Image> ),
+ *  bumpScale: <float>,
+ *
+ *  normalMap: new THREE.Texture( <Image> ),
+ *  normalScale: <Vector2>,
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  roughnessMap: new THREE.Texture( <Image> ),
+ *
+ *  metalnessMap: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
+ *  envMapIntensity: <float>
+ *
+ *  refractionRatio: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ * }
+ */
+
+function MeshStandardMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.defines = { 'STANDARD': '' };
+
+	this.type = 'MeshStandardMaterial';
+
+	this.color = new Color( 0xffffff ); // diffuse
+	this.roughness = 0.5;
+	this.metalness = 0.5;
+
+	this.map = null;
+
+	this.lightMap = null;
+	this.lightMapIntensity = 1.0;
+
+	this.aoMap = null;
+	this.aoMapIntensity = 1.0;
+
+	this.emissive = new Color( 0x000000 );
+	this.emissiveIntensity = 1.0;
+	this.emissiveMap = null;
+
+	this.bumpMap = null;
+	this.bumpScale = 1;
+
+	this.normalMap = null;
+	this.normalScale = new Vector2( 1, 1 );
+
+	this.displacementMap = null;
+	this.displacementScale = 1;
+	this.displacementBias = 0;
+
+	this.roughnessMap = null;
+
+	this.metalnessMap = null;
+
+	this.alphaMap = null;
+
+	this.envMap = null;
+	this.envMapIntensity = 1.0;
+
+	this.refractionRatio = 0.98;
+
+	this.wireframe = false;
+	this.wireframeLinewidth = 1;
+	this.wireframeLinecap = 'round';
+	this.wireframeLinejoin = 'round';
+
+	this.skinning = false;
+	this.morphTargets = false;
+	this.morphNormals = false;
+
+	this.setValues( parameters );
+
+}
+
+MeshStandardMaterial.prototype = Object.create( Material.prototype );
+MeshStandardMaterial.prototype.constructor = MeshStandardMaterial;
+
+MeshStandardMaterial.prototype.isMeshStandardMaterial = true;
+
+MeshStandardMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.defines = { 'STANDARD': '' };
+
+	this.color.copy( source.color );
+	this.roughness = source.roughness;
+	this.metalness = source.metalness;
+
+	this.map = source.map;
+
+	this.lightMap = source.lightMap;
+	this.lightMapIntensity = source.lightMapIntensity;
+
+	this.aoMap = source.aoMap;
+	this.aoMapIntensity = source.aoMapIntensity;
+
+	this.emissive.copy( source.emissive );
+	this.emissiveMap = source.emissiveMap;
+	this.emissiveIntensity = source.emissiveIntensity;
+
+	this.bumpMap = source.bumpMap;
+	this.bumpScale = source.bumpScale;
+
+	this.normalMap = source.normalMap;
+	this.normalScale.copy( source.normalScale );
+
+	this.displacementMap = source.displacementMap;
+	this.displacementScale = source.displacementScale;
+	this.displacementBias = source.displacementBias;
+
+	this.roughnessMap = source.roughnessMap;
+
+	this.metalnessMap = source.metalnessMap;
+
+	this.alphaMap = source.alphaMap;
+
+	this.envMap = source.envMap;
+	this.envMapIntensity = source.envMapIntensity;
+
+	this.refractionRatio = source.refractionRatio;
+
+	this.wireframe = source.wireframe;
+	this.wireframeLinewidth = source.wireframeLinewidth;
+	this.wireframeLinecap = source.wireframeLinecap;
+	this.wireframeLinejoin = source.wireframeLinejoin;
+
+	this.skinning = source.skinning;
+	this.morphTargets = source.morphTargets;
+	this.morphNormals = source.morphNormals;
+
+	return this;
+
+};
+
+/**
+ * @author WestLangley / http://github.com/WestLangley
+ *
+ * parameters = {
+ *  reflectivity: <float>
+ * }
+ */
+
+function MeshPhysicalMaterial( parameters ) {
+
+	MeshStandardMaterial.call( this );
+
+	this.defines = { 'PHYSICAL': '' };
+
+	this.type = 'MeshPhysicalMaterial';
+
+	this.reflectivity = 0.5; // maps to F0 = 0.04
+
+	this.clearCoat = 0.0;
+	this.clearCoatRoughness = 0.0;
+
+	this.setValues( parameters );
+
+}
+
+MeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );
+MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;
+
+MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;
+
+MeshPhysicalMaterial.prototype.copy = function ( source ) {
+
+	MeshStandardMaterial.prototype.copy.call( this, source );
+
+	this.defines = { 'PHYSICAL': '' };
+
+	this.reflectivity = source.reflectivity;
+
+	this.clearCoat = source.clearCoat;
+	this.clearCoatRoughness = source.clearCoatRoughness;
+
+	return this;
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * parameters = {
+ *  color: <hex>,
+ *  specular: <hex>,
+ *  shininess: <float>,
+ *  opacity: <float>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  emissive: <hex>,
+ *  emissiveIntensity: <float>
+ *  emissiveMap: new THREE.Texture( <Image> ),
+ *
+ *  bumpMap: new THREE.Texture( <Image> ),
+ *  bumpScale: <float>,
+ *
+ *  normalMap: new THREE.Texture( <Image> ),
+ *  normalScale: <Vector2>,
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  specularMap: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
+ *  combine: THREE.Multiply,
+ *  reflectivity: <float>,
+ *  refractionRatio: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ * }
+ */
+
+function MeshPhongMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'MeshPhongMaterial';
+
+	this.color = new Color( 0xffffff ); // diffuse
+	this.specular = new Color( 0x111111 );
+	this.shininess = 30;
+
+	this.map = null;
+
+	this.lightMap = null;
+	this.lightMapIntensity = 1.0;
+
+	this.aoMap = null;
+	this.aoMapIntensity = 1.0;
+
+	this.emissive = new Color( 0x000000 );
+	this.emissiveIntensity = 1.0;
+	this.emissiveMap = null;
+
+	this.bumpMap = null;
+	this.bumpScale = 1;
+
+	this.normalMap = null;
+	this.normalScale = new Vector2( 1, 1 );
+
+	this.displacementMap = null;
+	this.displacementScale = 1;
+	this.displacementBias = 0;
+
+	this.specularMap = null;
+
+	this.alphaMap = null;
+
+	this.envMap = null;
+	this.combine = MultiplyOperation;
+	this.reflectivity = 1;
+	this.refractionRatio = 0.98;
+
+	this.wireframe = false;
+	this.wireframeLinewidth = 1;
+	this.wireframeLinecap = 'round';
+	this.wireframeLinejoin = 'round';
+
+	this.skinning = false;
+	this.morphTargets = false;
+	this.morphNormals = false;
+
+	this.setValues( parameters );
+
+}
+
+MeshPhongMaterial.prototype = Object.create( Material.prototype );
+MeshPhongMaterial.prototype.constructor = MeshPhongMaterial;
+
+MeshPhongMaterial.prototype.isMeshPhongMaterial = true;
+
+MeshPhongMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.color.copy( source.color );
+	this.specular.copy( source.specular );
+	this.shininess = source.shininess;
+
+	this.map = source.map;
+
+	this.lightMap = source.lightMap;
+	this.lightMapIntensity = source.lightMapIntensity;
+
+	this.aoMap = source.aoMap;
+	this.aoMapIntensity = source.aoMapIntensity;
+
+	this.emissive.copy( source.emissive );
+	this.emissiveMap = source.emissiveMap;
+	this.emissiveIntensity = source.emissiveIntensity;
+
+	this.bumpMap = source.bumpMap;
+	this.bumpScale = source.bumpScale;
+
+	this.normalMap = source.normalMap;
+	this.normalScale.copy( source.normalScale );
+
+	this.displacementMap = source.displacementMap;
+	this.displacementScale = source.displacementScale;
+	this.displacementBias = source.displacementBias;
+
+	this.specularMap = source.specularMap;
+
+	this.alphaMap = source.alphaMap;
+
+	this.envMap = source.envMap;
+	this.combine = source.combine;
+	this.reflectivity = source.reflectivity;
+	this.refractionRatio = source.refractionRatio;
+
+	this.wireframe = source.wireframe;
+	this.wireframeLinewidth = source.wireframeLinewidth;
+	this.wireframeLinecap = source.wireframeLinecap;
+	this.wireframeLinejoin = source.wireframeLinejoin;
+
+	this.skinning = source.skinning;
+	this.morphTargets = source.morphTargets;
+	this.morphNormals = source.morphNormals;
+
+	return this;
+
+};
+
+/**
+ * @author takahirox / http://github.com/takahirox
+ *
+ * parameters = {
+ *  gradientMap: new THREE.Texture( <Image> )
+ * }
+ */
+
+function MeshToonMaterial( parameters ) {
+
+	MeshPhongMaterial.call( this );
+
+	this.defines = { 'TOON': '' };
+
+	this.type = 'MeshToonMaterial';
+
+	this.gradientMap = null;
+
+	this.setValues( parameters );
+
+}
+
+MeshToonMaterial.prototype = Object.create( MeshPhongMaterial.prototype );
+MeshToonMaterial.prototype.constructor = MeshToonMaterial;
+
+MeshToonMaterial.prototype.isMeshToonMaterial = true;
+
+MeshToonMaterial.prototype.copy = function ( source ) {
+
+	MeshPhongMaterial.prototype.copy.call( this, source );
+
+	this.gradientMap = source.gradientMap;
+
+	return this;
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author WestLangley / http://github.com/WestLangley
+ *
+ * parameters = {
+ *  opacity: <float>,
+ *
+ *  bumpMap: new THREE.Texture( <Image> ),
+ *  bumpScale: <float>,
+ *
+ *  normalMap: new THREE.Texture( <Image> ),
+ *  normalScale: <Vector2>,
+ *
+ *  displacementMap: new THREE.Texture( <Image> ),
+ *  displacementScale: <float>,
+ *  displacementBias: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ * }
+ */
+
+function MeshNormalMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'MeshNormalMaterial';
+
+	this.bumpMap = null;
+	this.bumpScale = 1;
+
+	this.normalMap = null;
+	this.normalScale = new Vector2( 1, 1 );
+
+	this.displacementMap = null;
+	this.displacementScale = 1;
+	this.displacementBias = 0;
+
+	this.wireframe = false;
+	this.wireframeLinewidth = 1;
+
+	this.fog = false;
+	this.lights = false;
+
+	this.skinning = false;
+	this.morphTargets = false;
+	this.morphNormals = false;
+
+	this.setValues( parameters );
+
+}
+
+MeshNormalMaterial.prototype = Object.create( Material.prototype );
+MeshNormalMaterial.prototype.constructor = MeshNormalMaterial;
+
+MeshNormalMaterial.prototype.isMeshNormalMaterial = true;
+
+MeshNormalMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.bumpMap = source.bumpMap;
+	this.bumpScale = source.bumpScale;
+
+	this.normalMap = source.normalMap;
+	this.normalScale.copy( source.normalScale );
+
+	this.displacementMap = source.displacementMap;
+	this.displacementScale = source.displacementScale;
+	this.displacementBias = source.displacementBias;
+
+	this.wireframe = source.wireframe;
+	this.wireframeLinewidth = source.wireframeLinewidth;
+
+	this.skinning = source.skinning;
+	this.morphTargets = source.morphTargets;
+	this.morphNormals = source.morphNormals;
+
+	return this;
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *
+ *  map: new THREE.Texture( <Image> ),
+ *
+ *  lightMap: new THREE.Texture( <Image> ),
+ *  lightMapIntensity: <float>
+ *
+ *  aoMap: new THREE.Texture( <Image> ),
+ *  aoMapIntensity: <float>
+ *
+ *  emissive: <hex>,
+ *  emissiveIntensity: <float>
+ *  emissiveMap: new THREE.Texture( <Image> ),
+ *
+ *  specularMap: new THREE.Texture( <Image> ),
+ *
+ *  alphaMap: new THREE.Texture( <Image> ),
+ *
+ *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
+ *  combine: THREE.Multiply,
+ *  reflectivity: <float>,
+ *  refractionRatio: <float>,
+ *
+ *  wireframe: <boolean>,
+ *  wireframeLinewidth: <float>,
+ *
+ *  skinning: <bool>,
+ *  morphTargets: <bool>,
+ *  morphNormals: <bool>
+ * }
+ */
+
+function MeshLambertMaterial( parameters ) {
+
+	Material.call( this );
+
+	this.type = 'MeshLambertMaterial';
+
+	this.color = new Color( 0xffffff ); // diffuse
+
+	this.map = null;
+
+	this.lightMap = null;
+	this.lightMapIntensity = 1.0;
+
+	this.aoMap = null;
+	this.aoMapIntensity = 1.0;
+
+	this.emissive = new Color( 0x000000 );
+	this.emissiveIntensity = 1.0;
+	this.emissiveMap = null;
+
+	this.specularMap = null;
+
+	this.alphaMap = null;
+
+	this.envMap = null;
+	this.combine = MultiplyOperation;
+	this.reflectivity = 1;
+	this.refractionRatio = 0.98;
+
+	this.wireframe = false;
+	this.wireframeLinewidth = 1;
+	this.wireframeLinecap = 'round';
+	this.wireframeLinejoin = 'round';
+
+	this.skinning = false;
+	this.morphTargets = false;
+	this.morphNormals = false;
+
+	this.setValues( parameters );
+
+}
+
+MeshLambertMaterial.prototype = Object.create( Material.prototype );
+MeshLambertMaterial.prototype.constructor = MeshLambertMaterial;
+
+MeshLambertMaterial.prototype.isMeshLambertMaterial = true;
+
+MeshLambertMaterial.prototype.copy = function ( source ) {
+
+	Material.prototype.copy.call( this, source );
+
+	this.color.copy( source.color );
+
+	this.map = source.map;
+
+	this.lightMap = source.lightMap;
+	this.lightMapIntensity = source.lightMapIntensity;
+
+	this.aoMap = source.aoMap;
+	this.aoMapIntensity = source.aoMapIntensity;
+
+	this.emissive.copy( source.emissive );
+	this.emissiveMap = source.emissiveMap;
+	this.emissiveIntensity = source.emissiveIntensity;
+
+	this.specularMap = source.specularMap;
+
+	this.alphaMap = source.alphaMap;
+
+	this.envMap = source.envMap;
+	this.combine = source.combine;
+	this.reflectivity = source.reflectivity;
+	this.refractionRatio = source.refractionRatio;
+
+	this.wireframe = source.wireframe;
+	this.wireframeLinewidth = source.wireframeLinewidth;
+	this.wireframeLinecap = source.wireframeLinecap;
+	this.wireframeLinejoin = source.wireframeLinejoin;
+
+	this.skinning = source.skinning;
+	this.morphTargets = source.morphTargets;
+	this.morphNormals = source.morphNormals;
+
+	return this;
+
+};
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ *
+ * parameters = {
+ *  color: <hex>,
+ *  opacity: <float>,
+ *
+ *  linewidth: <float>,
+ *
+ *  scale: <float>,
+ *  dashSize: <float>,
+ *  gapSize: <float>
+ * }
+ */
+
+function LineDashedMaterial( parameters ) {
+
+	LineBasicMaterial.call( this );
+
+	this.type = 'LineDashedMaterial';
+
+	this.scale = 1;
+	this.dashSize = 3;
+	this.gapSize = 1;
+
+	this.setValues( parameters );
+
+}
+
+LineDashedMaterial.prototype = Object.create( LineBasicMaterial.prototype );
+LineDashedMaterial.prototype.constructor = LineDashedMaterial;
+
+LineDashedMaterial.prototype.isLineDashedMaterial = true;
+
+LineDashedMaterial.prototype.copy = function ( source ) {
+
+	LineBasicMaterial.prototype.copy.call( this, source );
+
+	this.scale = source.scale;
+	this.dashSize = source.dashSize;
+	this.gapSize = source.gapSize;
+
+	return this;
+
+};
+
+
+
+var Materials = Object.freeze({
+	ShadowMaterial: ShadowMaterial,
+	SpriteMaterial: SpriteMaterial,
+	RawShaderMaterial: RawShaderMaterial,
+	ShaderMaterial: ShaderMaterial,
+	PointsMaterial: PointsMaterial,
+	MeshPhysicalMaterial: MeshPhysicalMaterial,
+	MeshStandardMaterial: MeshStandardMaterial,
+	MeshPhongMaterial: MeshPhongMaterial,
+	MeshToonMaterial: MeshToonMaterial,
+	MeshNormalMaterial: MeshNormalMaterial,
+	MeshLambertMaterial: MeshLambertMaterial,
+	MeshDepthMaterial: MeshDepthMaterial,
+	MeshDistanceMaterial: MeshDistanceMaterial,
+	MeshBasicMaterial: MeshBasicMaterial,
+	LineDashedMaterial: LineDashedMaterial,
+	LineBasicMaterial: LineBasicMaterial,
+	Material: Material
+});
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+var Cache = {
+
+	enabled: false,
+
+	files: {},
+
+	add: function ( key, file ) {
+
+		if ( this.enabled === false ) return;
+
+		// console.log( 'THREE.Cache', 'Adding key:', key );
+
+		this.files[ key ] = file;
+
+	},
+
+	get: function ( key ) {
+
+		if ( this.enabled === false ) return;
+
+		// console.log( 'THREE.Cache', 'Checking key:', key );
+
+		return this.files[ key ];
+
+	},
+
+	remove: function ( key ) {
+
+		delete this.files[ key ];
+
+	},
+
+	clear: function () {
+
+		this.files = {};
+
+	}
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function LoadingManager( onLoad, onProgress, onError ) {
+
+	var scope = this;
+
+	var isLoading = false;
+	var itemsLoaded = 0;
+	var itemsTotal = 0;
+	var urlModifier = undefined;
+
+	this.onStart = undefined;
+	this.onLoad = onLoad;
+	this.onProgress = onProgress;
+	this.onError = onError;
+
+	this.itemStart = function ( url ) {
+
+		itemsTotal ++;
+
+		if ( isLoading === false ) {
+
+			if ( scope.onStart !== undefined ) {
+
+				scope.onStart( url, itemsLoaded, itemsTotal );
+
+			}
+
+		}
+
+		isLoading = true;
+
+	};
+
+	this.itemEnd = function ( url ) {
+
+		itemsLoaded ++;
+
+		if ( scope.onProgress !== undefined ) {
+
+			scope.onProgress( url, itemsLoaded, itemsTotal );
+
+		}
+
+		if ( itemsLoaded === itemsTotal ) {
+
+			isLoading = false;
+
+			if ( scope.onLoad !== undefined ) {
+
+				scope.onLoad();
+
+			}
+
+		}
+
+	};
+
+	this.itemError = function ( url ) {
+
+		if ( scope.onError !== undefined ) {
+
+			scope.onError( url );
+
+		}
+
+	};
+
+	this.resolveURL = function ( url ) {
+
+		if ( urlModifier ) {
+
+			return urlModifier( url );
+
+		}
+
+		return url;
+
+	};
+
+	this.setURLModifier = function ( transform ) {
+
+		urlModifier = transform;
+
+	};
+
+}
+
+var DefaultLoadingManager = new LoadingManager();
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+var loading = {};
+
+function FileLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+}
+
+Object.assign( FileLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		if ( url === undefined ) url = '';
+
+		if ( this.path !== undefined ) url = this.path + url;
+
+		url = this.manager.resolveURL( url );
+
+		var scope = this;
+
+		var cached = Cache.get( url );
+
+		if ( cached !== undefined ) {
+
+			scope.manager.itemStart( url );
+
+			setTimeout( function () {
+
+				if ( onLoad ) onLoad( cached );
+
+				scope.manager.itemEnd( url );
+
+			}, 0 );
+
+			return cached;
+
+		}
+
+		// Check if request is duplicate
+
+		if ( loading[ url ] !== undefined ) {
+
+			loading[ url ].push( {
+
+				onLoad: onLoad,
+				onProgress: onProgress,
+				onError: onError
+
+			} );
+
+			return;
+
+		}
+
+		// Check for data: URI
+		var dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;
+		var dataUriRegexResult = url.match( dataUriRegex );
+
+		// Safari can not handle Data URIs through XMLHttpRequest so process manually
+		if ( dataUriRegexResult ) {
+
+			var mimeType = dataUriRegexResult[ 1 ];
+			var isBase64 = !! dataUriRegexResult[ 2 ];
+			var data = dataUriRegexResult[ 3 ];
+
+			data = window.decodeURIComponent( data );
+
+			if ( isBase64 ) data = window.atob( data );
+
+			try {
+
+				var response;
+				var responseType = ( this.responseType || '' ).toLowerCase();
+
+				switch ( responseType ) {
+
+					case 'arraybuffer':
+					case 'blob':
+
+						var view = new Uint8Array( data.length );
+
+						for ( var i = 0; i < data.length; i ++ ) {
+
+							view[ i ] = data.charCodeAt( i );
+
+						}
+
+						if ( responseType === 'blob' ) {
+
+							response = new Blob( [ view.buffer ], { type: mimeType } );
+
+						} else {
+
+							response = view.buffer;
+
+						}
+
+						break;
+
+					case 'document':
+
+						var parser = new DOMParser();
+						response = parser.parseFromString( data, mimeType );
+
+						break;
+
+					case 'json':
+
+						response = JSON.parse( data );
+
+						break;
+
+					default: // 'text' or other
+
+						response = data;
+
+						break;
+
+				}
+
+				// Wait for next browser tick like standard XMLHttpRequest event dispatching does
+				window.setTimeout( function () {
+
+					if ( onLoad ) onLoad( response );
+
+					scope.manager.itemEnd( url );
+
+				}, 0 );
+
+			} catch ( error ) {
+
+				// Wait for next browser tick like standard XMLHttpRequest event dispatching does
+				window.setTimeout( function () {
+
+					if ( onError ) onError( error );
+
+					scope.manager.itemEnd( url );
+					scope.manager.itemError( url );
+
+				}, 0 );
+
+			}
+
+		} else {
+
+			// Initialise array for duplicate requests
+
+			loading[ url ] = [];
+
+			loading[ url ].push( {
+
+				onLoad: onLoad,
+				onProgress: onProgress,
+				onError: onError
+
+			} );
+
+			var request = new XMLHttpRequest();
+
+			request.open( 'GET', url, true );
+
+			request.addEventListener( 'load', function ( event ) {
+
+				var response = event.target.response;
+
+				Cache.add( url, response );
+
+				var callbacks = loading[ url ];
+
+				delete loading[ url ];
+
+				if ( this.status === 200 ) {
+
+					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+						var callback = callbacks[ i ];
+						if ( callback.onLoad ) callback.onLoad( response );
+
+					}
+
+					scope.manager.itemEnd( url );
+
+				} else if ( this.status === 0 ) {
+
+					// Some browsers return HTTP Status 0 when using non-http protocol
+					// e.g. 'file://' or 'data://'. Handle as success.
+
+					console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );
+
+					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+						var callback = callbacks[ i ];
+						if ( callback.onLoad ) callback.onLoad( response );
+
+					}
+
+					scope.manager.itemEnd( url );
+
+				} else {
+
+					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+						var callback = callbacks[ i ];
+						if ( callback.onError ) callback.onError( event );
+
+					}
+
+					scope.manager.itemEnd( url );
+					scope.manager.itemError( url );
+
+				}
+
+			}, false );
+
+			request.addEventListener( 'progress', function ( event ) {
+
+				var callbacks = loading[ url ];
+
+				for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+					var callback = callbacks[ i ];
+					if ( callback.onProgress ) callback.onProgress( event );
+
+				}
+
+			}, false );
+
+			request.addEventListener( 'error', function ( event ) {
+
+				var callbacks = loading[ url ];
+
+				delete loading[ url ];
+
+				for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
+
+					var callback = callbacks[ i ];
+					if ( callback.onError ) callback.onError( event );
+
+				}
+
+				scope.manager.itemEnd( url );
+				scope.manager.itemError( url );
+
+			}, false );
+
+			if ( this.responseType !== undefined ) request.responseType = this.responseType;
+			if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;
+
+			if ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' );
+
+			for ( var header in this.requestHeader ) {
+
+				request.setRequestHeader( header, this.requestHeader[ header ] );
+
+			}
+
+			request.send( null );
+
+		}
+
+		scope.manager.itemStart( url );
+
+		return request;
+
+	},
+
+	setPath: function ( value ) {
+
+		this.path = value;
+		return this;
+
+	},
+
+	setResponseType: function ( value ) {
+
+		this.responseType = value;
+		return this;
+
+	},
+
+	setWithCredentials: function ( value ) {
+
+		this.withCredentials = value;
+		return this;
+
+	},
+
+	setMimeType: function ( value ) {
+
+		this.mimeType = value;
+		return this;
+
+	},
+
+	setRequestHeader: function ( value ) {
+
+		this.requestHeader = value;
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ *
+ * Abstract Base class to block based textures loader (dds, pvr, ...)
+ */
+
+function CompressedTextureLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	// override in sub classes
+	this._parser = null;
+
+}
+
+Object.assign( CompressedTextureLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var scope = this;
+
+		var images = [];
+
+		var texture = new CompressedTexture();
+		texture.image = images;
+
+		var loader = new FileLoader( this.manager );
+		loader.setPath( this.path );
+		loader.setResponseType( 'arraybuffer' );
+
+		function loadTexture( i ) {
+
+			loader.load( url[ i ], function ( buffer ) {
+
+				var texDatas = scope._parser( buffer, true );
+
+				images[ i ] = {
+					width: texDatas.width,
+					height: texDatas.height,
+					format: texDatas.format,
+					mipmaps: texDatas.mipmaps
+				};
+
+				loaded += 1;
+
+				if ( loaded === 6 ) {
+
+					if ( texDatas.mipmapCount === 1 )
+						texture.minFilter = LinearFilter;
+
+					texture.format = texDatas.format;
+					texture.needsUpdate = true;
+
+					if ( onLoad ) onLoad( texture );
+
+				}
+
+			}, onProgress, onError );
+
+		}
+
+		if ( Array.isArray( url ) ) {
+
+			var loaded = 0;
+
+			for ( var i = 0, il = url.length; i < il; ++ i ) {
+
+				loadTexture( i );
+
+			}
+
+		} else {
+
+			// compressed cubemap texture stored in a single DDS file
+
+			loader.load( url, function ( buffer ) {
+
+				var texDatas = scope._parser( buffer, true );
+
+				if ( texDatas.isCubemap ) {
+
+					var faces = texDatas.mipmaps.length / texDatas.mipmapCount;
+
+					for ( var f = 0; f < faces; f ++ ) {
+
+						images[ f ] = { mipmaps: [] };
+
+						for ( var i = 0; i < texDatas.mipmapCount; i ++ ) {
+
+							images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
+							images[ f ].format = texDatas.format;
+							images[ f ].width = texDatas.width;
+							images[ f ].height = texDatas.height;
+
+						}
+
+					}
+
+				} else {
+
+					texture.image.width = texDatas.width;
+					texture.image.height = texDatas.height;
+					texture.mipmaps = texDatas.mipmaps;
+
+				}
+
+				if ( texDatas.mipmapCount === 1 ) {
+
+					texture.minFilter = LinearFilter;
+
+				}
+
+				texture.format = texDatas.format;
+				texture.needsUpdate = true;
+
+				if ( onLoad ) onLoad( texture );
+
+			}, onProgress, onError );
+
+		}
+
+		return texture;
+
+	},
+
+	setPath: function ( value ) {
+
+		this.path = value;
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author Nikos M. / https://github.com/foo123/
+ *
+ * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
+ */
+
+function DataTextureLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	// override in sub classes
+	this._parser = null;
+
+}
+
+Object.assign( DataTextureLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var scope = this;
+
+		var texture = new DataTexture();
+
+		var loader = new FileLoader( this.manager );
+		loader.setResponseType( 'arraybuffer' );
+
+		loader.load( url, function ( buffer ) {
+
+			var texData = scope._parser( buffer );
+
+			if ( ! texData ) return;
+
+			if ( undefined !== texData.image ) {
+
+				texture.image = texData.image;
+
+			} else if ( undefined !== texData.data ) {
+
+				texture.image.width = texData.width;
+				texture.image.height = texData.height;
+				texture.image.data = texData.data;
+
+			}
+
+			texture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping;
+			texture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping;
+
+			texture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter;
+			texture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter;
+
+			texture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;
+
+			if ( undefined !== texData.format ) {
+
+				texture.format = texData.format;
+
+			}
+			if ( undefined !== texData.type ) {
+
+				texture.type = texData.type;
+
+			}
+
+			if ( undefined !== texData.mipmaps ) {
+
+				texture.mipmaps = texData.mipmaps;
+
+			}
+
+			if ( 1 === texData.mipmapCount ) {
+
+				texture.minFilter = LinearFilter;
+
+			}
+
+			texture.needsUpdate = true;
+
+			if ( onLoad ) onLoad( texture, texData );
+
+		}, onProgress, onError );
+
+
+		return texture;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function ImageLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+}
+
+Object.assign( ImageLoader.prototype, {
+
+	crossOrigin: 'Anonymous',
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		if ( url === undefined ) url = '';
+
+		if ( this.path !== undefined ) url = this.path + url;
+
+		url = this.manager.resolveURL( url );
+
+		var scope = this;
+
+		var cached = Cache.get( url );
+
+		if ( cached !== undefined ) {
+
+			scope.manager.itemStart( url );
+
+			setTimeout( function () {
+
+				if ( onLoad ) onLoad( cached );
+
+				scope.manager.itemEnd( url );
+
+			}, 0 );
+
+			return cached;
+
+		}
+
+		var image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );
+
+		image.addEventListener( 'load', function () {
+
+			Cache.add( url, this );
+
+			if ( onLoad ) onLoad( this );
+
+			scope.manager.itemEnd( url );
+
+		}, false );
+
+		/*
+		image.addEventListener( 'progress', function ( event ) {
+
+			if ( onProgress ) onProgress( event );
+
+		}, false );
+		*/
+
+		image.addEventListener( 'error', function ( event ) {
+
+			if ( onError ) onError( event );
+
+			scope.manager.itemEnd( url );
+			scope.manager.itemError( url );
+
+		}, false );
+
+		if ( url.substr( 0, 5 ) !== 'data:' ) {
+
+			if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;
+
+		}
+
+		scope.manager.itemStart( url );
+
+		image.src = url;
+
+		return image;
+
+	},
+
+	setCrossOrigin: function ( value ) {
+
+		this.crossOrigin = value;
+		return this;
+
+	},
+
+	setPath: function ( value ) {
+
+		this.path = value;
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function CubeTextureLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+}
+
+Object.assign( CubeTextureLoader.prototype, {
+
+	crossOrigin: 'Anonymous',
+
+	load: function ( urls, onLoad, onProgress, onError ) {
+
+		var texture = new CubeTexture();
+
+		var loader = new ImageLoader( this.manager );
+		loader.setCrossOrigin( this.crossOrigin );
+		loader.setPath( this.path );
+
+		var loaded = 0;
+
+		function loadTexture( i ) {
+
+			loader.load( urls[ i ], function ( image ) {
+
+				texture.images[ i ] = image;
+
+				loaded ++;
+
+				if ( loaded === 6 ) {
+
+					texture.needsUpdate = true;
+
+					if ( onLoad ) onLoad( texture );
+
+				}
+
+			}, undefined, onError );
+
+		}
+
+		for ( var i = 0; i < urls.length; ++ i ) {
+
+			loadTexture( i );
+
+		}
+
+		return texture;
+
+	},
+
+	setCrossOrigin: function ( value ) {
+
+		this.crossOrigin = value;
+		return this;
+
+	},
+
+	setPath: function ( value ) {
+
+		this.path = value;
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function TextureLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+}
+
+Object.assign( TextureLoader.prototype, {
+
+	crossOrigin: 'Anonymous',
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var loader = new ImageLoader( this.manager );
+		loader.setCrossOrigin( this.crossOrigin );
+		loader.setPath( this.path );
+
+		var texture = new Texture();
+		texture.image = loader.load( url, function () {
+
+			// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
+			var isJPEG = url.search( /\.(jpg|jpeg)$/ ) > 0 || url.search( /^data\:image\/jpeg/ ) === 0;
+
+			texture.format = isJPEG ? RGBFormat : RGBAFormat;
+			texture.needsUpdate = true;
+
+			if ( onLoad !== undefined ) {
+
+				onLoad( texture );
+
+			}
+
+		}, onProgress, onError );
+
+		return texture;
+
+	},
+
+	setCrossOrigin: function ( value ) {
+
+		this.crossOrigin = value;
+		return this;
+
+	},
+
+	setPath: function ( value ) {
+
+		this.path = value;
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function Light( color, intensity ) {
+
+	Object3D.call( this );
+
+	this.type = 'Light';
+
+	this.color = new Color( color );
+	this.intensity = intensity !== undefined ? intensity : 1;
+
+	this.receiveShadow = undefined;
+
+}
+
+Light.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Light,
+
+	isLight: true,
+
+	copy: function ( source ) {
+
+		Object3D.prototype.copy.call( this, source );
+
+		this.color.copy( source.color );
+		this.intensity = source.intensity;
+
+		return this;
+
+	},
+
+	toJSON: function ( meta ) {
+
+		var data = Object3D.prototype.toJSON.call( this, meta );
+
+		data.object.color = this.color.getHex();
+		data.object.intensity = this.intensity;
+
+		if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();
+
+		if ( this.distance !== undefined ) data.object.distance = this.distance;
+		if ( this.angle !== undefined ) data.object.angle = this.angle;
+		if ( this.decay !== undefined ) data.object.decay = this.decay;
+		if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;
+
+		if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();
+
+		return data;
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function HemisphereLight( skyColor, groundColor, intensity ) {
+
+	Light.call( this, skyColor, intensity );
+
+	this.type = 'HemisphereLight';
+
+	this.castShadow = undefined;
+
+	this.position.copy( Object3D.DefaultUp );
+	this.updateMatrix();
+
+	this.groundColor = new Color( groundColor );
+
+}
+
+HemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+	constructor: HemisphereLight,
+
+	isHemisphereLight: true,
+
+	copy: function ( source ) {
+
+		Light.prototype.copy.call( this, source );
+
+		this.groundColor.copy( source.groundColor );
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function LightShadow( camera ) {
+
+	this.camera = camera;
+
+	this.bias = 0;
+	this.radius = 1;
+
+	this.mapSize = new Vector2( 512, 512 );
+
+	this.map = null;
+	this.matrix = new Matrix4();
+
+}
+
+Object.assign( LightShadow.prototype, {
+
+	copy: function ( source ) {
+
+		this.camera = source.camera.clone();
+
+		this.bias = source.bias;
+		this.radius = source.radius;
+
+		this.mapSize.copy( source.mapSize );
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	toJSON: function () {
+
+		var object = {};
+
+		if ( this.bias !== 0 ) object.bias = this.bias;
+		if ( this.radius !== 1 ) object.radius = this.radius;
+		if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();
+
+		object.camera = this.camera.toJSON( false ).object;
+		delete object.camera.matrix;
+
+		return object;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function SpotLightShadow() {
+
+	LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );
+
+}
+
+SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
+
+	constructor: SpotLightShadow,
+
+	isSpotLightShadow: true,
+
+	update: function ( light ) {
+
+		var camera = this.camera;
+
+		var fov = _Math.RAD2DEG * 2 * light.angle;
+		var aspect = this.mapSize.width / this.mapSize.height;
+		var far = light.distance || camera.far;
+
+		if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {
+
+			camera.fov = fov;
+			camera.aspect = aspect;
+			camera.far = far;
+			camera.updateProjectionMatrix();
+
+		}
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function SpotLight( color, intensity, distance, angle, penumbra, decay ) {
+
+	Light.call( this, color, intensity );
+
+	this.type = 'SpotLight';
+
+	this.position.copy( Object3D.DefaultUp );
+	this.updateMatrix();
+
+	this.target = new Object3D();
+
+	Object.defineProperty( this, 'power', {
+		get: function () {
+
+			// intensity = power per solid angle.
+			// ref: equation (17) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf
+			return this.intensity * Math.PI;
+
+		},
+		set: function ( power ) {
+
+			// intensity = power per solid angle.
+			// ref: equation (17) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf
+			this.intensity = power / Math.PI;
+
+		}
+	} );
+
+	this.distance = ( distance !== undefined ) ? distance : 0;
+	this.angle = ( angle !== undefined ) ? angle : Math.PI / 3;
+	this.penumbra = ( penumbra !== undefined ) ? penumbra : 0;
+	this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.
+
+	this.shadow = new SpotLightShadow();
+
+}
+
+SpotLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+	constructor: SpotLight,
+
+	isSpotLight: true,
+
+	copy: function ( source ) {
+
+		Light.prototype.copy.call( this, source );
+
+		this.distance = source.distance;
+		this.angle = source.angle;
+		this.penumbra = source.penumbra;
+		this.decay = source.decay;
+
+		this.target = source.target.clone();
+
+		this.shadow = source.shadow.clone();
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+
+function PointLight( color, intensity, distance, decay ) {
+
+	Light.call( this, color, intensity );
+
+	this.type = 'PointLight';
+
+	Object.defineProperty( this, 'power', {
+		get: function () {
+
+			// intensity = power per solid angle.
+			// ref: equation (15) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf
+			return this.intensity * 4 * Math.PI;
+
+		},
+		set: function ( power ) {
+
+			// intensity = power per solid angle.
+			// ref: equation (15) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf
+			this.intensity = power / ( 4 * Math.PI );
+
+		}
+	} );
+
+	this.distance = ( distance !== undefined ) ? distance : 0;
+	this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.
+
+	this.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );
+
+}
+
+PointLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+	constructor: PointLight,
+
+	isPointLight: true,
+
+	copy: function ( source ) {
+
+		Light.prototype.copy.call( this, source );
+
+		this.distance = source.distance;
+		this.decay = source.decay;
+
+		this.shadow = source.shadow.clone();
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function DirectionalLightShadow( ) {
+
+	LightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );
+
+}
+
+DirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
+
+	constructor: DirectionalLightShadow
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function DirectionalLight( color, intensity ) {
+
+	Light.call( this, color, intensity );
+
+	this.type = 'DirectionalLight';
+
+	this.position.copy( Object3D.DefaultUp );
+	this.updateMatrix();
+
+	this.target = new Object3D();
+
+	this.shadow = new DirectionalLightShadow();
+
+}
+
+DirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+	constructor: DirectionalLight,
+
+	isDirectionalLight: true,
+
+	copy: function ( source ) {
+
+		Light.prototype.copy.call( this, source );
+
+		this.target = source.target.clone();
+
+		this.shadow = source.shadow.clone();
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function AmbientLight( color, intensity ) {
+
+	Light.call( this, color, intensity );
+
+	this.type = 'AmbientLight';
+
+	this.castShadow = undefined;
+
+}
+
+AmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+	constructor: AmbientLight,
+
+	isAmbientLight: true
+
+} );
+
+/**
+ * @author abelnation / http://github.com/abelnation
+ */
+
+function RectAreaLight( color, intensity, width, height ) {
+
+	Light.call( this, color, intensity );
+
+	this.type = 'RectAreaLight';
+
+	this.position.set( 0, 1, 0 );
+	this.updateMatrix();
+
+	this.width = ( width !== undefined ) ? width : 10;
+	this.height = ( height !== undefined ) ? height : 10;
+
+	// TODO (abelnation): distance/decay
+
+	// TODO (abelnation): update method for RectAreaLight to update transform to lookat target
+
+	// TODO (abelnation): shadows
+
+}
+
+// TODO (abelnation): RectAreaLight update when light shape is changed
+RectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), {
+
+	constructor: RectAreaLight,
+
+	isRectAreaLight: true,
+
+	copy: function ( source ) {
+
+		Light.prototype.copy.call( this, source );
+
+		this.width = source.width;
+		this.height = source.height;
+
+		return this;
+
+	},
+
+	toJSON: function ( meta ) {
+
+		var data = Light.prototype.toJSON.call( this, meta );
+
+		data.object.width = this.width;
+		data.object.height = this.height;
+
+		return data;
+
+	}
+
+} );
+
+/**
+ * @author tschw
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ */
+
+var AnimationUtils = {
+
+	// same as Array.prototype.slice, but also works on typed arrays
+	arraySlice: function ( array, from, to ) {
+
+		if ( AnimationUtils.isTypedArray( array ) ) {
+
+			// in ios9 array.subarray(from, undefined) will return empty array
+			// but array.subarray(from) or array.subarray(from, len) is correct
+			return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );
+
+		}
+
+		return array.slice( from, to );
+
+	},
+
+	// converts an array to a specific type
+	convertArray: function ( array, type, forceClone ) {
+
+		if ( ! array || // let 'undefined' and 'null' pass
+				! forceClone && array.constructor === type ) return array;
+
+		if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {
+
+			return new type( array ); // create typed array
+
+		}
+
+		return Array.prototype.slice.call( array ); // create Array
+
+	},
+
+	isTypedArray: function ( object ) {
+
+		return ArrayBuffer.isView( object ) &&
+				! ( object instanceof DataView );
+
+	},
+
+	// returns an array by which times and values can be sorted
+	getKeyframeOrder: function ( times ) {
+
+		function compareTime( i, j ) {
+
+			return times[ i ] - times[ j ];
+
+		}
+
+		var n = times.length;
+		var result = new Array( n );
+		for ( var i = 0; i !== n; ++ i ) result[ i ] = i;
+
+		result.sort( compareTime );
+
+		return result;
+
+	},
+
+	// uses the array previously returned by 'getKeyframeOrder' to sort data
+	sortedArray: function ( values, stride, order ) {
+
+		var nValues = values.length;
+		var result = new values.constructor( nValues );
+
+		for ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {
+
+			var srcOffset = order[ i ] * stride;
+
+			for ( var j = 0; j !== stride; ++ j ) {
+
+				result[ dstOffset ++ ] = values[ srcOffset + j ];
+
+			}
+
+		}
+
+		return result;
+
+	},
+
+	// function for parsing AOS keyframe formats
+	flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {
+
+		var i = 1, key = jsonKeys[ 0 ];
+
+		while ( key !== undefined && key[ valuePropertyName ] === undefined ) {
+
+			key = jsonKeys[ i ++ ];
+
+		}
+
+		if ( key === undefined ) return; // no data
+
+		var value = key[ valuePropertyName ];
+		if ( value === undefined ) return; // no data
+
+		if ( Array.isArray( value ) ) {
+
+			do {
+
+				value = key[ valuePropertyName ];
+
+				if ( value !== undefined ) {
+
+					times.push( key.time );
+					values.push.apply( values, value ); // push all elements
+
+				}
+
+				key = jsonKeys[ i ++ ];
+
+			} while ( key !== undefined );
+
+		} else if ( value.toArray !== undefined ) {
+
+			// ...assume THREE.Math-ish
+
+			do {
+
+				value = key[ valuePropertyName ];
+
+				if ( value !== undefined ) {
+
+					times.push( key.time );
+					value.toArray( values, values.length );
+
+				}
+
+				key = jsonKeys[ i ++ ];
+
+			} while ( key !== undefined );
+
+		} else {
+
+			// otherwise push as-is
+
+			do {
+
+				value = key[ valuePropertyName ];
+
+				if ( value !== undefined ) {
+
+					times.push( key.time );
+					values.push( value );
+
+				}
+
+				key = jsonKeys[ i ++ ];
+
+			} while ( key !== undefined );
+
+		}
+
+	}
+
+};
+
+/**
+ * Abstract base class of interpolants over parametric samples.
+ *
+ * The parameter domain is one dimensional, typically the time or a path
+ * along a curve defined by the data.
+ *
+ * The sample values can have any dimensionality and derived classes may
+ * apply special interpretations to the data.
+ *
+ * This class provides the interval seek in a Template Method, deferring
+ * the actual interpolation to derived classes.
+ *
+ * Time complexity is O(1) for linear access crossing at most two points
+ * and O(log N) for random access, where N is the number of positions.
+ *
+ * References:
+ *
+ * 		http://www.oodesign.com/template-method-pattern.html
+ *
+ * @author tschw
+ */
+
+function Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+	this.parameterPositions = parameterPositions;
+	this._cachedIndex = 0;
+
+	this.resultBuffer = resultBuffer !== undefined ?
+		resultBuffer : new sampleValues.constructor( sampleSize );
+	this.sampleValues = sampleValues;
+	this.valueSize = sampleSize;
+
+}
+
+Object.assign( Interpolant.prototype, {
+
+	evaluate: function ( t ) {
+
+		var pp = this.parameterPositions,
+			i1 = this._cachedIndex,
+
+			t1 = pp[ i1 ],
+			t0 = pp[ i1 - 1 ];
+
+		validate_interval: {
+
+			seek: {
+
+				var right;
+
+				linear_scan: {
+
+					//- See http://jsperf.com/comparison-to-undefined/3
+					//- slower code:
+					//-
+					//- 				if ( t >= t1 || t1 === undefined ) {
+					forward_scan: if ( ! ( t < t1 ) ) {
+
+						for ( var giveUpAt = i1 + 2; ; ) {
+
+							if ( t1 === undefined ) {
+
+								if ( t < t0 ) break forward_scan;
+
+								// after end
+
+								i1 = pp.length;
+								this._cachedIndex = i1;
+								return this.afterEnd_( i1 - 1, t, t0 );
+
+							}
+
+							if ( i1 === giveUpAt ) break; // this loop
+
+							t0 = t1;
+							t1 = pp[ ++ i1 ];
+
+							if ( t < t1 ) {
+
+								// we have arrived at the sought interval
+								break seek;
+
+							}
+
+						}
+
+						// prepare binary search on the right side of the index
+						right = pp.length;
+						break linear_scan;
+
+					}
+
+					//- slower code:
+					//-					if ( t < t0 || t0 === undefined ) {
+					if ( ! ( t >= t0 ) ) {
+
+						// looping?
+
+						var t1global = pp[ 1 ];
+
+						if ( t < t1global ) {
+
+							i1 = 2; // + 1, using the scan for the details
+							t0 = t1global;
+
+						}
+
+						// linear reverse scan
+
+						for ( var giveUpAt = i1 - 2; ; ) {
+
+							if ( t0 === undefined ) {
+
+								// before start
+
+								this._cachedIndex = 0;
+								return this.beforeStart_( 0, t, t1 );
+
+							}
+
+							if ( i1 === giveUpAt ) break; // this loop
+
+							t1 = t0;
+							t0 = pp[ -- i1 - 1 ];
+
+							if ( t >= t0 ) {
+
+								// we have arrived at the sought interval
+								break seek;
+
+							}
+
+						}
+
+						// prepare binary search on the left side of the index
+						right = i1;
+						i1 = 0;
+						break linear_scan;
+
+					}
+
+					// the interval is valid
+
+					break validate_interval;
+
+				} // linear scan
+
+				// binary search
+
+				while ( i1 < right ) {
+
+					var mid = ( i1 + right ) >>> 1;
+
+					if ( t < pp[ mid ] ) {
+
+						right = mid;
+
+					} else {
+
+						i1 = mid + 1;
+
+					}
+
+				}
+
+				t1 = pp[ i1 ];
+				t0 = pp[ i1 - 1 ];
+
+				// check boundary cases, again
+
+				if ( t0 === undefined ) {
+
+					this._cachedIndex = 0;
+					return this.beforeStart_( 0, t, t1 );
+
+				}
+
+				if ( t1 === undefined ) {
+
+					i1 = pp.length;
+					this._cachedIndex = i1;
+					return this.afterEnd_( i1 - 1, t0, t );
+
+				}
+
+			} // seek
+
+			this._cachedIndex = i1;
+
+			this.intervalChanged_( i1, t0, t1 );
+
+		} // validate_interval
+
+		return this.interpolate_( i1, t0, t, t1 );
+
+	},
+
+	settings: null, // optional, subclass-specific settings structure
+	// Note: The indirection allows central control of many interpolants.
+
+	// --- Protected interface
+
+	DefaultSettings_: {},
+
+	getSettings_: function () {
+
+		return this.settings || this.DefaultSettings_;
+
+	},
+
+	copySampleValue_: function ( index ) {
+
+		// copies a sample value to the result buffer
+
+		var result = this.resultBuffer,
+			values = this.sampleValues,
+			stride = this.valueSize,
+			offset = index * stride;
+
+		for ( var i = 0; i !== stride; ++ i ) {
+
+			result[ i ] = values[ offset + i ];
+
+		}
+
+		return result;
+
+	},
+
+	// Template methods for derived classes:
+
+	interpolate_: function ( /* i1, t0, t, t1 */ ) {
+
+		throw new Error( 'call to abstract method' );
+		// implementations shall return this.resultBuffer
+
+	},
+
+	intervalChanged_: function ( /* i1, t0, t1 */ ) {
+
+		// empty
+
+	}
+
+} );
+
+//!\ DECLARE ALIAS AFTER assign prototype !
+Object.assign( Interpolant.prototype, {
+
+	//( 0, t, t0 ), returns this.resultBuffer
+	beforeStart_: Interpolant.prototype.copySampleValue_,
+
+	//( N-1, tN-1, t ), returns this.resultBuffer
+	afterEnd_: Interpolant.prototype.copySampleValue_,
+
+} );
+
+/**
+ * Fast and simple cubic spline interpolant.
+ *
+ * It was derived from a Hermitian construction setting the first derivative
+ * at each sample position to the linear slope between neighboring positions
+ * over their parameter interval.
+ *
+ * @author tschw
+ */
+
+function CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+	Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+	this._weightPrev = - 0;
+	this._offsetPrev = - 0;
+	this._weightNext = - 0;
+	this._offsetNext = - 0;
+
+}
+
+CubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
+
+	constructor: CubicInterpolant,
+
+	DefaultSettings_: {
+
+		endingStart: ZeroCurvatureEnding,
+		endingEnd: ZeroCurvatureEnding
+
+	},
+
+	intervalChanged_: function ( i1, t0, t1 ) {
+
+		var pp = this.parameterPositions,
+			iPrev = i1 - 2,
+			iNext = i1 + 1,
+
+			tPrev = pp[ iPrev ],
+			tNext = pp[ iNext ];
+
+		if ( tPrev === undefined ) {
+
+			switch ( this.getSettings_().endingStart ) {
+
+				case ZeroSlopeEnding:
+
+					// f'(t0) = 0
+					iPrev = i1;
+					tPrev = 2 * t0 - t1;
+
+					break;
+
+				case WrapAroundEnding:
+
+					// use the other end of the curve
+					iPrev = pp.length - 2;
+					tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];
+
+					break;
+
+				default: // ZeroCurvatureEnding
+
+					// f''(t0) = 0 a.k.a. Natural Spline
+					iPrev = i1;
+					tPrev = t1;
+
+			}
+
+		}
+
+		if ( tNext === undefined ) {
+
+			switch ( this.getSettings_().endingEnd ) {
+
+				case ZeroSlopeEnding:
+
+					// f'(tN) = 0
+					iNext = i1;
+					tNext = 2 * t1 - t0;
+
+					break;
+
+				case WrapAroundEnding:
+
+					// use the other end of the curve
+					iNext = 1;
+					tNext = t1 + pp[ 1 ] - pp[ 0 ];
+
+					break;
+
+				default: // ZeroCurvatureEnding
+
+					// f''(tN) = 0, a.k.a. Natural Spline
+					iNext = i1 - 1;
+					tNext = t0;
+
+			}
+
+		}
+
+		var halfDt = ( t1 - t0 ) * 0.5,
+			stride = this.valueSize;
+
+		this._weightPrev = halfDt / ( t0 - tPrev );
+		this._weightNext = halfDt / ( tNext - t1 );
+		this._offsetPrev = iPrev * stride;
+		this._offsetNext = iNext * stride;
+
+	},
+
+	interpolate_: function ( i1, t0, t, t1 ) {
+
+		var result = this.resultBuffer,
+			values = this.sampleValues,
+			stride = this.valueSize,
+
+			o1 = i1 * stride,		o0 = o1 - stride,
+			oP = this._offsetPrev, 	oN = this._offsetNext,
+			wP = this._weightPrev,	wN = this._weightNext,
+
+			p = ( t - t0 ) / ( t1 - t0 ),
+			pp = p * p,
+			ppp = pp * p;
+
+		// evaluate polynomials
+
+		var sP = - wP * ppp + 2 * wP * pp - wP * p;
+		var s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;
+		var s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;
+		var sN = wN * ppp - wN * pp;
+
+		// combine data linearly
+
+		for ( var i = 0; i !== stride; ++ i ) {
+
+			result[ i ] =
+					sP * values[ oP + i ] +
+					s0 * values[ o0 + i ] +
+					s1 * values[ o1 + i ] +
+					sN * values[ oN + i ];
+
+		}
+
+		return result;
+
+	}
+
+} );
+
+/**
+ * @author tschw
+ */
+
+function LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+	Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+}
+
+LinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
+
+	constructor: LinearInterpolant,
+
+	interpolate_: function ( i1, t0, t, t1 ) {
+
+		var result = this.resultBuffer,
+			values = this.sampleValues,
+			stride = this.valueSize,
+
+			offset1 = i1 * stride,
+			offset0 = offset1 - stride,
+
+			weight1 = ( t - t0 ) / ( t1 - t0 ),
+			weight0 = 1 - weight1;
+
+		for ( var i = 0; i !== stride; ++ i ) {
+
+			result[ i ] =
+					values[ offset0 + i ] * weight0 +
+					values[ offset1 + i ] * weight1;
+
+		}
+
+		return result;
+
+	}
+
+} );
+
+/**
+ *
+ * Interpolant that evaluates to the sample value at the position preceeding
+ * the parameter.
+ *
+ * @author tschw
+ */
+
+function DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+	Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+}
+
+DiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
+
+	constructor: DiscreteInterpolant,
+
+	interpolate_: function ( i1 /*, t0, t, t1 */ ) {
+
+		return this.copySampleValue_( i1 - 1 );
+
+	}
+
+} );
+
+var KeyframeTrackPrototype;
+
+KeyframeTrackPrototype = {
+
+	TimeBufferType: Float32Array,
+	ValueBufferType: Float32Array,
+
+	DefaultInterpolation: InterpolateLinear,
+
+	InterpolantFactoryMethodDiscrete: function ( result ) {
+
+		return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );
+
+	},
+
+	InterpolantFactoryMethodLinear: function ( result ) {
+
+		return new LinearInterpolant( this.times, this.values, this.getValueSize(), result );
+
+	},
+
+	InterpolantFactoryMethodSmooth: function ( result ) {
+
+		return new CubicInterpolant( this.times, this.values, this.getValueSize(), result );
+
+	},
+
+	setInterpolation: function ( interpolation ) {
+
+		var factoryMethod;
+
+		switch ( interpolation ) {
+
+			case InterpolateDiscrete:
+
+				factoryMethod = this.InterpolantFactoryMethodDiscrete;
+
+				break;
+
+			case InterpolateLinear:
+
+				factoryMethod = this.InterpolantFactoryMethodLinear;
+
+				break;
+
+			case InterpolateSmooth:
+
+				factoryMethod = this.InterpolantFactoryMethodSmooth;
+
+				break;
+
+		}
+
+		if ( factoryMethod === undefined ) {
+
+			var message = "unsupported interpolation for " +
+					this.ValueTypeName + " keyframe track named " + this.name;
+
+			if ( this.createInterpolant === undefined ) {
+
+				// fall back to default, unless the default itself is messed up
+				if ( interpolation !== this.DefaultInterpolation ) {
+
+					this.setInterpolation( this.DefaultInterpolation );
+
+				} else {
+
+					throw new Error( message ); // fatal, in this case
+
+				}
+
+			}
+
+			console.warn( 'THREE.KeyframeTrackPrototype:', message );
+			return;
+
+		}
+
+		this.createInterpolant = factoryMethod;
+
+	},
+
+	getInterpolation: function () {
+
+		switch ( this.createInterpolant ) {
+
+			case this.InterpolantFactoryMethodDiscrete:
+
+				return InterpolateDiscrete;
+
+			case this.InterpolantFactoryMethodLinear:
+
+				return InterpolateLinear;
+
+			case this.InterpolantFactoryMethodSmooth:
+
+				return InterpolateSmooth;
+
+		}
+
+	},
+
+	getValueSize: function () {
+
+		return this.values.length / this.times.length;
+
+	},
+
+	// move all keyframes either forwards or backwards in time
+	shift: function ( timeOffset ) {
+
+		if ( timeOffset !== 0.0 ) {
+
+			var times = this.times;
+
+			for ( var i = 0, n = times.length; i !== n; ++ i ) {
+
+				times[ i ] += timeOffset;
+
+			}
+
+		}
+
+		return this;
+
+	},
+
+	// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
+	scale: function ( timeScale ) {
+
+		if ( timeScale !== 1.0 ) {
+
+			var times = this.times;
+
+			for ( var i = 0, n = times.length; i !== n; ++ i ) {
+
+				times[ i ] *= timeScale;
+
+			}
+
+		}
+
+		return this;
+
+	},
+
+	// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
+	// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
+	trim: function ( startTime, endTime ) {
+
+		var times = this.times,
+			nKeys = times.length,
+			from = 0,
+			to = nKeys - 1;
+
+		while ( from !== nKeys && times[ from ] < startTime ) ++ from;
+		while ( to !== - 1 && times[ to ] > endTime ) -- to;
+
+		++ to; // inclusive -> exclusive bound
+
+		if ( from !== 0 || to !== nKeys ) {
+
+			// empty tracks are forbidden, so keep at least one keyframe
+			if ( from >= to ) to = Math.max( to, 1 ), from = to - 1;
+
+			var stride = this.getValueSize();
+			this.times = AnimationUtils.arraySlice( times, from, to );
+			this.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride );
+
+		}
+
+		return this;
+
+	},
+
+	// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
+	validate: function () {
+
+		var valid = true;
+
+		var valueSize = this.getValueSize();
+		if ( valueSize - Math.floor( valueSize ) !== 0 ) {
+
+			console.error( 'THREE.KeyframeTrackPrototype: Invalid value size in track.', this );
+			valid = false;
+
+		}
+
+		var times = this.times,
+			values = this.values,
+
+			nKeys = times.length;
+
+		if ( nKeys === 0 ) {
+
+			console.error( 'THREE.KeyframeTrackPrototype: Track is empty.', this );
+			valid = false;
+
+		}
+
+		var prevTime = null;
+
+		for ( var i = 0; i !== nKeys; i ++ ) {
+
+			var currTime = times[ i ];
+
+			if ( typeof currTime === 'number' && isNaN( currTime ) ) {
+
+				console.error( 'THREE.KeyframeTrackPrototype: Time is not a valid number.', this, i, currTime );
+				valid = false;
+				break;
+
+			}
+
+			if ( prevTime !== null && prevTime > currTime ) {
+
+				console.error( 'THREE.KeyframeTrackPrototype: Out of order keys.', this, i, currTime, prevTime );
+				valid = false;
+				break;
+
+			}
+
+			prevTime = currTime;
+
+		}
+
+		if ( values !== undefined ) {
+
+			if ( AnimationUtils.isTypedArray( values ) ) {
+
+				for ( var i = 0, n = values.length; i !== n; ++ i ) {
+
+					var value = values[ i ];
+
+					if ( isNaN( value ) ) {
+
+						console.error( 'THREE.KeyframeTrackPrototype: Value is not a valid number.', this, i, value );
+						valid = false;
+						break;
+
+					}
+
+				}
+
+			}
+
+		}
+
+		return valid;
+
+	},
+
+	// removes equivalent sequential keys as common in morph target sequences
+	// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
+	optimize: function () {
+
+		var times = this.times,
+			values = this.values,
+			stride = this.getValueSize(),
+
+			smoothInterpolation = this.getInterpolation() === InterpolateSmooth,
+
+			writeIndex = 1,
+			lastIndex = times.length - 1;
+
+		for ( var i = 1; i < lastIndex; ++ i ) {
+
+			var keep = false;
+
+			var time = times[ i ];
+			var timeNext = times[ i + 1 ];
+
+			// remove adjacent keyframes scheduled at the same time
+
+			if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {
+
+				if ( ! smoothInterpolation ) {
+
+					// remove unnecessary keyframes same as their neighbors
+
+					var offset = i * stride,
+						offsetP = offset - stride,
+						offsetN = offset + stride;
+
+					for ( var j = 0; j !== stride; ++ j ) {
+
+						var value = values[ offset + j ];
+
+						if ( value !== values[ offsetP + j ] ||
+								value !== values[ offsetN + j ] ) {
+
+							keep = true;
+							break;
+
+						}
+
+					}
+
+				} else keep = true;
+
+			}
+
+			// in-place compaction
+
+			if ( keep ) {
+
+				if ( i !== writeIndex ) {
+
+					times[ writeIndex ] = times[ i ];
+
+					var readOffset = i * stride,
+						writeOffset = writeIndex * stride;
+
+					for ( var j = 0; j !== stride; ++ j )
+
+						values[ writeOffset + j ] = values[ readOffset + j ];
+
+				}
+
+				++ writeIndex;
+
+			}
+
+		}
+
+		// flush last keyframe (compaction looks ahead)
+
+		if ( lastIndex > 0 ) {
+
+			times[ writeIndex ] = times[ lastIndex ];
+
+			for ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j )
+
+				values[ writeOffset + j ] = values[ readOffset + j ];
+
+			++ writeIndex;
+
+		}
+
+		if ( writeIndex !== times.length ) {
+
+			this.times = AnimationUtils.arraySlice( times, 0, writeIndex );
+			this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );
+
+		}
+
+		return this;
+
+	}
+
+};
+
+function KeyframeTrackConstructor( name, times, values, interpolation ) {
+
+	if ( name === undefined ) throw new Error( 'track name is undefined' );
+
+	if ( times === undefined || times.length === 0 ) {
+
+		throw new Error( 'no keyframes in track named ' + name );
+
+	}
+
+	this.name = name;
+
+	this.times = AnimationUtils.convertArray( times, this.TimeBufferType );
+	this.values = AnimationUtils.convertArray( values, this.ValueBufferType );
+
+	this.setInterpolation( interpolation || this.DefaultInterpolation );
+
+	this.validate();
+	this.optimize();
+
+}
+
+/**
+ *
+ * A Track of vectored keyframe values.
+ *
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function VectorKeyframeTrack( name, times, values, interpolation ) {
+
+	KeyframeTrackConstructor.call( this, name, times, values, interpolation );
+
+}
+
+VectorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrackPrototype ), {
+
+	constructor: VectorKeyframeTrack,
+
+	ValueTypeName: 'vector'
+
+	// ValueBufferType is inherited
+
+	// DefaultInterpolation is inherited
+
+} );
+
+/**
+ * Spherical linear unit quaternion interpolant.
+ *
+ * @author tschw
+ */
+
+function QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
+
+	Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
+
+}
+
+QuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
+
+	constructor: QuaternionLinearInterpolant,
+
+	interpolate_: function ( i1, t0, t, t1 ) {
+
+		var result = this.resultBuffer,
+			values = this.sampleValues,
+			stride = this.valueSize,
+
+			offset = i1 * stride,
+
+			alpha = ( t - t0 ) / ( t1 - t0 );
+
+		for ( var end = offset + stride; offset !== end; offset += 4 ) {
+
+			Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );
+
+		}
+
+		return result;
+
+	}
+
+} );
+
+/**
+ *
+ * A Track of quaternion keyframe values.
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function QuaternionKeyframeTrack( name, times, values, interpolation ) {
+
+	KeyframeTrackConstructor.call( this, name, times, values, interpolation );
+
+}
+
+QuaternionKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrackPrototype ), {
+
+	constructor: QuaternionKeyframeTrack,
+
+	ValueTypeName: 'quaternion',
+
+	// ValueBufferType is inherited
+
+	DefaultInterpolation: InterpolateLinear,
+
+	InterpolantFactoryMethodLinear: function ( result ) {
+
+		return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );
+
+	},
+
+	InterpolantFactoryMethodSmooth: undefined // not yet implemented
+
+} );
+
+/**
+ *
+ * A Track of numeric keyframe values.
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function NumberKeyframeTrack( name, times, values, interpolation ) {
+
+	KeyframeTrackConstructor.call( this, name, times, values, interpolation );
+
+}
+
+NumberKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrackPrototype ), {
+
+	constructor: NumberKeyframeTrack,
+
+	ValueTypeName: 'number'
+
+	// ValueBufferType is inherited
+
+	// DefaultInterpolation is inherited
+
+} );
+
+/**
+ *
+ * A Track that interpolates Strings
+ *
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function StringKeyframeTrack( name, times, values, interpolation ) {
+
+	KeyframeTrackConstructor.call( this, name, times, values, interpolation );
+
+}
+
+StringKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrackPrototype ), {
+
+	constructor: StringKeyframeTrack,
+
+	ValueTypeName: 'string',
+	ValueBufferType: Array,
+
+	DefaultInterpolation: InterpolateDiscrete,
+
+	InterpolantFactoryMethodLinear: undefined,
+
+	InterpolantFactoryMethodSmooth: undefined
+
+} );
+
+/**
+ *
+ * A Track of Boolean keyframe values.
+ *
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function BooleanKeyframeTrack( name, times, values ) {
+
+	KeyframeTrackConstructor.call( this, name, times, values );
+
+}
+
+BooleanKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrackPrototype ), {
+
+	constructor: BooleanKeyframeTrack,
+
+	ValueTypeName: 'bool',
+	ValueBufferType: Array,
+
+	DefaultInterpolation: InterpolateDiscrete,
+
+	InterpolantFactoryMethodLinear: undefined,
+	InterpolantFactoryMethodSmooth: undefined
+
+	// Note: Actually this track could have a optimized / compressed
+	// representation of a single value and a custom interpolant that
+	// computes "firstValue ^ isOdd( index )".
+
+} );
+
+/**
+ *
+ * A Track of keyframe values that represent color.
+ *
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function ColorKeyframeTrack( name, times, values, interpolation ) {
+
+	KeyframeTrackConstructor.call( this, name, times, values, interpolation );
+
+}
+
+ColorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrackPrototype ), {
+
+	constructor: ColorKeyframeTrack,
+
+	ValueTypeName: 'color'
+
+	// ValueBufferType is inherited
+
+	// DefaultInterpolation is inherited
+
+
+	// Note: Very basic implementation and nothing special yet.
+	// However, this is the place for color space parameterization.
+
+} );
+
+/**
+ *
+ * A timed sequence of keyframes for a specific property.
+ *
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function KeyframeTrack( name, times, values, interpolation ) {
+
+	KeyframeTrackConstructor.apply( this, name, times, values, interpolation );
+
+}
+
+KeyframeTrack.prototype = KeyframeTrackPrototype;
+KeyframeTrackPrototype.constructor = KeyframeTrack;
+
+// Static methods:
+
+Object.assign( KeyframeTrack, {
+
+	// Serialization (in static context, because of constructor invocation
+	// and automatic invocation of .toJSON):
+
+	parse: function ( json ) {
+
+		if ( json.type === undefined ) {
+
+			throw new Error( 'track type undefined, can not parse' );
+
+		}
+
+		var trackType = KeyframeTrack._getTrackTypeForValueTypeName( json.type );
+
+		if ( json.times === undefined ) {
+
+			var times = [], values = [];
+
+			AnimationUtils.flattenJSON( json.keys, times, values, 'value' );
+
+			json.times = times;
+			json.values = values;
+
+		}
+
+		// derived classes can define a static parse method
+		if ( trackType.parse !== undefined ) {
+
+			return trackType.parse( json );
+
+		} else {
+
+			// by default, we assume a constructor compatible with the base
+			return new trackType( json.name, json.times, json.values, json.interpolation );
+
+		}
+
+	},
+
+	toJSON: function ( track ) {
+
+		var trackType = track.constructor;
+
+		var json;
+
+		// derived classes can define a static toJSON method
+		if ( trackType.toJSON !== undefined ) {
+
+			json = trackType.toJSON( track );
+
+		} else {
+
+			// by default, we assume the data can be serialized as-is
+			json = {
+
+				'name': track.name,
+				'times': AnimationUtils.convertArray( track.times, Array ),
+				'values': AnimationUtils.convertArray( track.values, Array )
+
+			};
+
+			var interpolation = track.getInterpolation();
+
+			if ( interpolation !== track.DefaultInterpolation ) {
+
+				json.interpolation = interpolation;
+
+			}
+
+		}
+
+		json.type = track.ValueTypeName; // mandatory
+
+		return json;
+
+	},
+
+	_getTrackTypeForValueTypeName: function ( typeName ) {
+
+		switch ( typeName.toLowerCase() ) {
+
+			case 'scalar':
+			case 'double':
+			case 'float':
+			case 'number':
+			case 'integer':
+
+				return NumberKeyframeTrack;
+
+			case 'vector':
+			case 'vector2':
+			case 'vector3':
+			case 'vector4':
+
+				return VectorKeyframeTrack;
+
+			case 'color':
+
+				return ColorKeyframeTrack;
+
+			case 'quaternion':
+
+				return QuaternionKeyframeTrack;
+
+			case 'bool':
+			case 'boolean':
+
+				return BooleanKeyframeTrack;
+
+			case 'string':
+
+				return StringKeyframeTrack;
+
+		}
+
+		throw new Error( 'Unsupported typeName: ' + typeName );
+
+	}
+
+} );
+
+/**
+ *
+ * Reusable set of Tracks that represent an animation.
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ */
+
+function AnimationClip( name, duration, tracks ) {
+
+	this.name = name;
+	this.tracks = tracks;
+	this.duration = ( duration !== undefined ) ? duration : - 1;
+
+	this.uuid = _Math.generateUUID();
+
+	// this means it should figure out its duration by scanning the tracks
+	if ( this.duration < 0 ) {
+
+		this.resetDuration();
+
+	}
+
+	this.optimize();
+
+}
+
+Object.assign( AnimationClip, {
+
+	parse: function ( json ) {
+
+		var tracks = [],
+			jsonTracks = json.tracks,
+			frameTime = 1.0 / ( json.fps || 1.0 );
+
+		for ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {
+
+			tracks.push( KeyframeTrack.parse( jsonTracks[ i ] ).scale( frameTime ) );
+
+		}
+
+		return new AnimationClip( json.name, json.duration, tracks );
+
+	},
+
+	toJSON: function ( clip ) {
+
+		var tracks = [],
+			clipTracks = clip.tracks;
+
+		var json = {
+
+			'name': clip.name,
+			'duration': clip.duration,
+			'tracks': tracks
+
+		};
+
+		for ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {
+
+			tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );
+
+		}
+
+		return json;
+
+	},
+
+	CreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) {
+
+		var numMorphTargets = morphTargetSequence.length;
+		var tracks = [];
+
+		for ( var i = 0; i < numMorphTargets; i ++ ) {
+
+			var times = [];
+			var values = [];
+
+			times.push(
+				( i + numMorphTargets - 1 ) % numMorphTargets,
+				i,
+				( i + 1 ) % numMorphTargets );
+
+			values.push( 0, 1, 0 );
+
+			var order = AnimationUtils.getKeyframeOrder( times );
+			times = AnimationUtils.sortedArray( times, 1, order );
+			values = AnimationUtils.sortedArray( values, 1, order );
+
+			// if there is a key at the first frame, duplicate it as the
+			// last frame as well for perfect loop.
+			if ( ! noLoop && times[ 0 ] === 0 ) {
+
+				times.push( numMorphTargets );
+				values.push( values[ 0 ] );
+
+			}
+
+			tracks.push(
+				new NumberKeyframeTrack(
+					'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
+					times, values
+				).scale( 1.0 / fps ) );
+
+		}
+
+		return new AnimationClip( name, - 1, tracks );
+
+	},
+
+	findByName: function ( objectOrClipArray, name ) {
+
+		var clipArray = objectOrClipArray;
+
+		if ( ! Array.isArray( objectOrClipArray ) ) {
+
+			var o = objectOrClipArray;
+			clipArray = o.geometry && o.geometry.animations || o.animations;
+
+		}
+
+		for ( var i = 0; i < clipArray.length; i ++ ) {
+
+			if ( clipArray[ i ].name === name ) {
+
+				return clipArray[ i ];
+
+			}
+
+		}
+
+		return null;
+
+	},
+
+	CreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) {
+
+		var animationToMorphTargets = {};
+
+		// tested with https://regex101.com/ on trick sequences
+		// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
+		var pattern = /^([\w-]*?)([\d]+)$/;
+
+		// sort morph target names into animation groups based
+		// patterns like Walk_001, Walk_002, Run_001, Run_002
+		for ( var i = 0, il = morphTargets.length; i < il; i ++ ) {
+
+			var morphTarget = morphTargets[ i ];
+			var parts = morphTarget.name.match( pattern );
+
+			if ( parts && parts.length > 1 ) {
+
+				var name = parts[ 1 ];
+
+				var animationMorphTargets = animationToMorphTargets[ name ];
+				if ( ! animationMorphTargets ) {
+
+					animationToMorphTargets[ name ] = animationMorphTargets = [];
+
+				}
+
+				animationMorphTargets.push( morphTarget );
+
+			}
+
+		}
+
+		var clips = [];
+
+		for ( var name in animationToMorphTargets ) {
+
+			clips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );
+
+		}
+
+		return clips;
+
+	},
+
+	// parse the animation.hierarchy format
+	parseAnimation: function ( animation, bones ) {
+
+		if ( ! animation ) {
+
+			console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );
+			return null;
+
+		}
+
+		var addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {
+
+			// only return track if there are actually keys.
+			if ( animationKeys.length !== 0 ) {
+
+				var times = [];
+				var values = [];
+
+				AnimationUtils.flattenJSON( animationKeys, times, values, propertyName );
+
+				// empty keys are filtered out, so check again
+				if ( times.length !== 0 ) {
+
+					destTracks.push( new trackType( trackName, times, values ) );
+
+				}
+
+			}
+
+		};
+
+		var tracks = [];
+
+		var clipName = animation.name || 'default';
+		// automatic length determination in AnimationClip.
+		var duration = animation.length || - 1;
+		var fps = animation.fps || 30;
+
+		var hierarchyTracks = animation.hierarchy || [];
+
+		for ( var h = 0; h < hierarchyTracks.length; h ++ ) {
+
+			var animationKeys = hierarchyTracks[ h ].keys;
+
+			// skip empty tracks
+			if ( ! animationKeys || animationKeys.length === 0 ) continue;
+
+			// process morph targets
+			if ( animationKeys[ 0 ].morphTargets ) {
+
+				// figure out all morph targets used in this track
+				var morphTargetNames = {};
+
+				for ( var k = 0; k < animationKeys.length; k ++ ) {
+
+					if ( animationKeys[ k ].morphTargets ) {
+
+						for ( var m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {
+
+							morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;
+
+						}
+
+					}
+
+				}
+
+				// create a track for each morph target with all zero
+				// morphTargetInfluences except for the keys in which
+				// the morphTarget is named.
+				for ( var morphTargetName in morphTargetNames ) {
+
+					var times = [];
+					var values = [];
+
+					for ( var m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {
+
+						var animationKey = animationKeys[ k ];
+
+						times.push( animationKey.time );
+						values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );
+
+					}
+
+					tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );
+
+				}
+
+				duration = morphTargetNames.length * ( fps || 1.0 );
+
+			} else {
+
+				// ...assume skeletal animation
+
+				var boneName = '.bones[' + bones[ h ].name + ']';
+
+				addNonemptyTrack(
+					VectorKeyframeTrack, boneName + '.position',
+					animationKeys, 'pos', tracks );
+
+				addNonemptyTrack(
+					QuaternionKeyframeTrack, boneName + '.quaternion',
+					animationKeys, 'rot', tracks );
+
+				addNonemptyTrack(
+					VectorKeyframeTrack, boneName + '.scale',
+					animationKeys, 'scl', tracks );
+
+			}
+
+		}
+
+		if ( tracks.length === 0 ) {
+
+			return null;
+
+		}
+
+		var clip = new AnimationClip( clipName, duration, tracks );
+
+		return clip;
+
+	}
+
+} );
+
+Object.assign( AnimationClip.prototype, {
+
+	resetDuration: function () {
+
+		var tracks = this.tracks, duration = 0;
+
+		for ( var i = 0, n = tracks.length; i !== n; ++ i ) {
+
+			var track = this.tracks[ i ];
+
+			duration = Math.max( duration, track.times[ track.times.length - 1 ] );
+
+		}
+
+		this.duration = duration;
+
+	},
+
+	trim: function () {
+
+		for ( var i = 0; i < this.tracks.length; i ++ ) {
+
+			this.tracks[ i ].trim( 0, this.duration );
+
+		}
+
+		return this;
+
+	},
+
+	optimize: function () {
+
+		for ( var i = 0; i < this.tracks.length; i ++ ) {
+
+			this.tracks[ i ].optimize();
+
+		}
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function MaterialLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+	this.textures = {};
+
+}
+
+Object.assign( MaterialLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var scope = this;
+
+		var loader = new FileLoader( scope.manager );
+		loader.load( url, function ( text ) {
+
+			onLoad( scope.parse( JSON.parse( text ) ) );
+
+		}, onProgress, onError );
+
+	},
+
+	setTextures: function ( value ) {
+
+		this.textures = value;
+
+	},
+
+	parse: function ( json ) {
+
+		var textures = this.textures;
+
+		function getTexture( name ) {
+
+			if ( textures[ name ] === undefined ) {
+
+				console.warn( 'THREE.MaterialLoader: Undefined texture', name );
+
+			}
+
+			return textures[ name ];
+
+		}
+
+		var material = new Materials[ json.type ]();
+
+		if ( json.uuid !== undefined ) material.uuid = json.uuid;
+		if ( json.name !== undefined ) material.name = json.name;
+		if ( json.color !== undefined ) material.color.setHex( json.color );
+		if ( json.roughness !== undefined ) material.roughness = json.roughness;
+		if ( json.metalness !== undefined ) material.metalness = json.metalness;
+		if ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );
+		if ( json.specular !== undefined ) material.specular.setHex( json.specular );
+		if ( json.shininess !== undefined ) material.shininess = json.shininess;
+		if ( json.clearCoat !== undefined ) material.clearCoat = json.clearCoat;
+		if ( json.clearCoatRoughness !== undefined ) material.clearCoatRoughness = json.clearCoatRoughness;
+		if ( json.uniforms !== undefined ) material.uniforms = json.uniforms;
+		if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
+		if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;
+		if ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;
+		if ( json.fog !== undefined ) material.fog = json.fog;
+		if ( json.flatShading !== undefined ) material.flatShading = json.flatShading;
+		if ( json.blending !== undefined ) material.blending = json.blending;
+		if ( json.side !== undefined ) material.side = json.side;
+		if ( json.opacity !== undefined ) material.opacity = json.opacity;
+		if ( json.transparent !== undefined ) material.transparent = json.transparent;
+		if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
+		if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
+		if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
+		if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;
+		if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
+		if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;
+		if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;
+		if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;
+
+		if ( json.rotation !== undefined ) material.rotation = json.rotation;
+
+		if ( json.linewidth !== 1 ) material.linewidth = json.linewidth;
+		if ( json.dashSize !== undefined ) material.dashSize = json.dashSize;
+		if ( json.gapSize !== undefined ) material.gapSize = json.gapSize;
+		if ( json.scale !== undefined ) material.scale = json.scale;
+
+		if ( json.skinning !== undefined ) material.skinning = json.skinning;
+		if ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;
+		if ( json.dithering !== undefined ) material.dithering = json.dithering;
+
+		if ( json.visible !== undefined ) material.visible = json.visible;
+		if ( json.userData !== undefined ) material.userData = json.userData;
+
+		// Deprecated
+
+		if ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading
+
+		// for PointsMaterial
+
+		if ( json.size !== undefined ) material.size = json.size;
+		if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;
+
+		// maps
+
+		if ( json.map !== undefined ) material.map = getTexture( json.map );
+
+		if ( json.alphaMap !== undefined ) {
+
+			material.alphaMap = getTexture( json.alphaMap );
+			material.transparent = true;
+
+		}
+
+		if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );
+		if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;
+
+		if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );
+		if ( json.normalScale !== undefined ) {
+
+			var normalScale = json.normalScale;
+
+			if ( Array.isArray( normalScale ) === false ) {
+
+				// Blender exporter used to export a scalar. See #7459
+
+				normalScale = [ normalScale, normalScale ];
+
+			}
+
+			material.normalScale = new Vector2().fromArray( normalScale );
+
+		}
+
+		if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );
+		if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
+		if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;
+
+		if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );
+		if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );
+
+		if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );
+		if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;
+
+		if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );
+
+		if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );
+
+		if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;
+
+		if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );
+		if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;
+
+		if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );
+		if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;
+
+		if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );
+
+		return material;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function BufferGeometryLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+}
+
+Object.assign( BufferGeometryLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var scope = this;
+
+		var loader = new FileLoader( scope.manager );
+		loader.load( url, function ( text ) {
+
+			onLoad( scope.parse( JSON.parse( text ) ) );
+
+		}, onProgress, onError );
+
+	},
+
+	parse: function ( json ) {
+
+		var geometry = new BufferGeometry();
+
+		var index = json.data.index;
+
+		if ( index !== undefined ) {
+
+			var typedArray = new TYPED_ARRAYS[ index.type ]( index.array );
+			geometry.setIndex( new BufferAttribute( typedArray, 1 ) );
+
+		}
+
+		var attributes = json.data.attributes;
+
+		for ( var key in attributes ) {
+
+			var attribute = attributes[ key ];
+			var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );
+
+			geometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) );
+
+		}
+
+		var groups = json.data.groups || json.data.drawcalls || json.data.offsets;
+
+		if ( groups !== undefined ) {
+
+			for ( var i = 0, n = groups.length; i !== n; ++ i ) {
+
+				var group = groups[ i ];
+
+				geometry.addGroup( group.start, group.count, group.materialIndex );
+
+			}
+
+		}
+
+		var boundingSphere = json.data.boundingSphere;
+
+		if ( boundingSphere !== undefined ) {
+
+			var center = new Vector3();
+
+			if ( boundingSphere.center !== undefined ) {
+
+				center.fromArray( boundingSphere.center );
+
+			}
+
+			geometry.boundingSphere = new Sphere( center, boundingSphere.radius );
+
+		}
+
+		return geometry;
+
+	}
+
+} );
+
+var TYPED_ARRAYS = {
+	Int8Array: Int8Array,
+	Uint8Array: Uint8Array,
+	// Workaround for IE11 pre KB2929437. See #11440
+	Uint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,
+	Int16Array: Int16Array,
+	Uint16Array: Uint16Array,
+	Int32Array: Int32Array,
+	Uint32Array: Uint32Array,
+	Float32Array: Float32Array,
+	Float64Array: Float64Array
+};
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function Loader() {
+
+	this.onLoadStart = function () {};
+	this.onLoadProgress = function () {};
+	this.onLoadComplete = function () {};
+
+}
+
+Loader.Handlers = {
+
+	handlers: [],
+
+	add: function ( regex, loader ) {
+
+		this.handlers.push( regex, loader );
+
+	},
+
+	get: function ( file ) {
+
+		var handlers = this.handlers;
+
+		for ( var i = 0, l = handlers.length; i < l; i += 2 ) {
+
+			var regex = handlers[ i ];
+			var loader = handlers[ i + 1 ];
+
+			if ( regex.test( file ) ) {
+
+				return loader;
+
+			}
+
+		}
+
+		return null;
+
+	}
+
+};
+
+Object.assign( Loader.prototype, {
+
+	crossOrigin: undefined,
+
+	extractUrlBase: function ( url ) {
+
+		var parts = url.split( '/' );
+
+		if ( parts.length === 1 ) return './';
+
+		parts.pop();
+
+		return parts.join( '/' ) + '/';
+
+	},
+
+	initMaterials: function ( materials, texturePath, crossOrigin ) {
+
+		var array = [];
+
+		for ( var i = 0; i < materials.length; ++ i ) {
+
+			array[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );
+
+		}
+
+		return array;
+
+	},
+
+	createMaterial: ( function () {
+
+		var BlendingMode = {
+			NoBlending: NoBlending,
+			NormalBlending: NormalBlending,
+			AdditiveBlending: AdditiveBlending,
+			SubtractiveBlending: SubtractiveBlending,
+			MultiplyBlending: MultiplyBlending,
+			CustomBlending: CustomBlending
+		};
+
+		var color = new Color();
+		var textureLoader = new TextureLoader();
+		var materialLoader = new MaterialLoader();
+
+		return function createMaterial( m, texturePath, crossOrigin ) {
+
+			// convert from old material format
+
+			var textures = {};
+
+			function loadTexture( path, repeat, offset, wrap, anisotropy ) {
+
+				var fullPath = texturePath + path;
+				var loader = Loader.Handlers.get( fullPath );
+
+				var texture;
+
+				if ( loader !== null ) {
+
+					texture = loader.load( fullPath );
+
+				} else {
+
+					textureLoader.setCrossOrigin( crossOrigin );
+					texture = textureLoader.load( fullPath );
+
+				}
+
+				if ( repeat !== undefined ) {
+
+					texture.repeat.fromArray( repeat );
+
+					if ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;
+					if ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;
+
+				}
+
+				if ( offset !== undefined ) {
+
+					texture.offset.fromArray( offset );
+
+				}
+
+				if ( wrap !== undefined ) {
+
+					if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;
+					if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;
+
+					if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;
+					if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;
+
+				}
+
+				if ( anisotropy !== undefined ) {
+
+					texture.anisotropy = anisotropy;
+
+				}
+
+				var uuid = _Math.generateUUID();
+
+				textures[ uuid ] = texture;
+
+				return uuid;
+
+			}
+
+			//
+
+			var json = {
+				uuid: _Math.generateUUID(),
+				type: 'MeshLambertMaterial'
+			};
+
+			for ( var name in m ) {
+
+				var value = m[ name ];
+
+				switch ( name ) {
+
+					case 'DbgColor':
+					case 'DbgIndex':
+					case 'opticalDensity':
+					case 'illumination':
+						break;
+					case 'DbgName':
+						json.name = value;
+						break;
+					case 'blending':
+						json.blending = BlendingMode[ value ];
+						break;
+					case 'colorAmbient':
+					case 'mapAmbient':
+						console.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );
+						break;
+					case 'colorDiffuse':
+						json.color = color.fromArray( value ).getHex();
+						break;
+					case 'colorSpecular':
+						json.specular = color.fromArray( value ).getHex();
+						break;
+					case 'colorEmissive':
+						json.emissive = color.fromArray( value ).getHex();
+						break;
+					case 'specularCoef':
+						json.shininess = value;
+						break;
+					case 'shading':
+						if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';
+						if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';
+						if ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';
+						break;
+					case 'mapDiffuse':
+						json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );
+						break;
+					case 'mapDiffuseRepeat':
+					case 'mapDiffuseOffset':
+					case 'mapDiffuseWrap':
+					case 'mapDiffuseAnisotropy':
+						break;
+					case 'mapEmissive':
+						json.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );
+						break;
+					case 'mapEmissiveRepeat':
+					case 'mapEmissiveOffset':
+					case 'mapEmissiveWrap':
+					case 'mapEmissiveAnisotropy':
+						break;
+					case 'mapLight':
+						json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );
+						break;
+					case 'mapLightRepeat':
+					case 'mapLightOffset':
+					case 'mapLightWrap':
+					case 'mapLightAnisotropy':
+						break;
+					case 'mapAO':
+						json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );
+						break;
+					case 'mapAORepeat':
+					case 'mapAOOffset':
+					case 'mapAOWrap':
+					case 'mapAOAnisotropy':
+						break;
+					case 'mapBump':
+						json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );
+						break;
+					case 'mapBumpScale':
+						json.bumpScale = value;
+						break;
+					case 'mapBumpRepeat':
+					case 'mapBumpOffset':
+					case 'mapBumpWrap':
+					case 'mapBumpAnisotropy':
+						break;
+					case 'mapNormal':
+						json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );
+						break;
+					case 'mapNormalFactor':
+						json.normalScale = [ value, value ];
+						break;
+					case 'mapNormalRepeat':
+					case 'mapNormalOffset':
+					case 'mapNormalWrap':
+					case 'mapNormalAnisotropy':
+						break;
+					case 'mapSpecular':
+						json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );
+						break;
+					case 'mapSpecularRepeat':
+					case 'mapSpecularOffset':
+					case 'mapSpecularWrap':
+					case 'mapSpecularAnisotropy':
+						break;
+					case 'mapMetalness':
+						json.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );
+						break;
+					case 'mapMetalnessRepeat':
+					case 'mapMetalnessOffset':
+					case 'mapMetalnessWrap':
+					case 'mapMetalnessAnisotropy':
+						break;
+					case 'mapRoughness':
+						json.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );
+						break;
+					case 'mapRoughnessRepeat':
+					case 'mapRoughnessOffset':
+					case 'mapRoughnessWrap':
+					case 'mapRoughnessAnisotropy':
+						break;
+					case 'mapAlpha':
+						json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );
+						break;
+					case 'mapAlphaRepeat':
+					case 'mapAlphaOffset':
+					case 'mapAlphaWrap':
+					case 'mapAlphaAnisotropy':
+						break;
+					case 'flipSided':
+						json.side = BackSide;
+						break;
+					case 'doubleSided':
+						json.side = DoubleSide;
+						break;
+					case 'transparency':
+						console.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );
+						json.opacity = value;
+						break;
+					case 'depthTest':
+					case 'depthWrite':
+					case 'colorWrite':
+					case 'opacity':
+					case 'reflectivity':
+					case 'transparent':
+					case 'visible':
+					case 'wireframe':
+						json[ name ] = value;
+						break;
+					case 'vertexColors':
+						if ( value === true ) json.vertexColors = VertexColors;
+						if ( value === 'face' ) json.vertexColors = FaceColors;
+						break;
+					default:
+						console.error( 'THREE.Loader.createMaterial: Unsupported', name, value );
+						break;
+
+				}
+
+			}
+
+			if ( json.type === 'MeshBasicMaterial' ) delete json.emissive;
+			if ( json.type !== 'MeshPhongMaterial' ) delete json.specular;
+
+			if ( json.opacity < 1 ) json.transparent = true;
+
+			materialLoader.setTextures( textures );
+
+			return materialLoader.parse( json );
+
+		};
+
+	} )()
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function JSONLoader( manager ) {
+
+	if ( typeof manager === 'boolean' ) {
+
+		console.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );
+		manager = undefined;
+
+	}
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+	this.withCredentials = false;
+
+}
+
+Object.assign( JSONLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var scope = this;
+
+		var texturePath = this.texturePath && ( typeof this.texturePath === "string" ) ? this.texturePath : Loader.prototype.extractUrlBase( url );
+
+		var loader = new FileLoader( this.manager );
+		loader.setWithCredentials( this.withCredentials );
+		loader.load( url, function ( text ) {
+
+			var json = JSON.parse( text );
+			var metadata = json.metadata;
+
+			if ( metadata !== undefined ) {
+
+				var type = metadata.type;
+
+				if ( type !== undefined ) {
+
+					if ( type.toLowerCase() === 'object' ) {
+
+						console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );
+						return;
+
+					}
+
+					if ( type.toLowerCase() === 'scene' ) {
+
+						console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.SceneLoader instead.' );
+						return;
+
+					}
+
+				}
+
+			}
+
+			var object = scope.parse( json, texturePath );
+			onLoad( object.geometry, object.materials );
+
+		}, onProgress, onError );
+
+	},
+
+	setTexturePath: function ( value ) {
+
+		this.texturePath = value;
+
+	},
+
+	parse: ( function () {
+
+		function parseModel( json, geometry ) {
+
+			function isBitSet( value, position ) {
+
+				return value & ( 1 << position );
+
+			}
+
+			var i, j, fi,
+
+				offset, zLength,
+
+				colorIndex, normalIndex, uvIndex, materialIndex,
+
+				type,
+				isQuad,
+				hasMaterial,
+				hasFaceVertexUv,
+				hasFaceNormal, hasFaceVertexNormal,
+				hasFaceColor, hasFaceVertexColor,
+
+				vertex, face, faceA, faceB, hex, normal,
+
+				uvLayer, uv, u, v,
+
+				faces = json.faces,
+				vertices = json.vertices,
+				normals = json.normals,
+				colors = json.colors,
+
+				scale = json.scale,
+
+				nUvLayers = 0;
+
+
+			if ( json.uvs !== undefined ) {
+
+				// disregard empty arrays
+
+				for ( i = 0; i < json.uvs.length; i ++ ) {
+
+					if ( json.uvs[ i ].length ) nUvLayers ++;
+
+				}
+
+				for ( i = 0; i < nUvLayers; i ++ ) {
+
+					geometry.faceVertexUvs[ i ] = [];
+
+				}
+
+			}
+
+			offset = 0;
+			zLength = vertices.length;
+
+			while ( offset < zLength ) {
+
+				vertex = new Vector3();
+
+				vertex.x = vertices[ offset ++ ] * scale;
+				vertex.y = vertices[ offset ++ ] * scale;
+				vertex.z = vertices[ offset ++ ] * scale;
+
+				geometry.vertices.push( vertex );
+
+			}
+
+			offset = 0;
+			zLength = faces.length;
+
+			while ( offset < zLength ) {
+
+				type = faces[ offset ++ ];
+
+				isQuad = isBitSet( type, 0 );
+				hasMaterial = isBitSet( type, 1 );
+				hasFaceVertexUv = isBitSet( type, 3 );
+				hasFaceNormal = isBitSet( type, 4 );
+				hasFaceVertexNormal = isBitSet( type, 5 );
+				hasFaceColor = isBitSet( type, 6 );
+				hasFaceVertexColor = isBitSet( type, 7 );
+
+				// console.log("type", type, "bits", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);
+
+				if ( isQuad ) {
+
+					faceA = new Face3();
+					faceA.a = faces[ offset ];
+					faceA.b = faces[ offset + 1 ];
+					faceA.c = faces[ offset + 3 ];
+
+					faceB = new Face3();
+					faceB.a = faces[ offset + 1 ];
+					faceB.b = faces[ offset + 2 ];
+					faceB.c = faces[ offset + 3 ];
+
+					offset += 4;
+
+					if ( hasMaterial ) {
+
+						materialIndex = faces[ offset ++ ];
+						faceA.materialIndex = materialIndex;
+						faceB.materialIndex = materialIndex;
+
+					}
+
+					// to get face <=> uv index correspondence
+
+					fi = geometry.faces.length;
+
+					if ( hasFaceVertexUv ) {
+
+						for ( i = 0; i < nUvLayers; i ++ ) {
+
+							uvLayer = json.uvs[ i ];
+
+							geometry.faceVertexUvs[ i ][ fi ] = [];
+							geometry.faceVertexUvs[ i ][ fi + 1 ] = [];
+
+							for ( j = 0; j < 4; j ++ ) {
+
+								uvIndex = faces[ offset ++ ];
+
+								u = uvLayer[ uvIndex * 2 ];
+								v = uvLayer[ uvIndex * 2 + 1 ];
+
+								uv = new Vector2( u, v );
+
+								if ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );
+								if ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );
+
+							}
+
+						}
+
+					}
+
+					if ( hasFaceNormal ) {
+
+						normalIndex = faces[ offset ++ ] * 3;
+
+						faceA.normal.set(
+							normals[ normalIndex ++ ],
+							normals[ normalIndex ++ ],
+							normals[ normalIndex ]
+						);
+
+						faceB.normal.copy( faceA.normal );
+
+					}
+
+					if ( hasFaceVertexNormal ) {
+
+						for ( i = 0; i < 4; i ++ ) {
+
+							normalIndex = faces[ offset ++ ] * 3;
+
+							normal = new Vector3(
+								normals[ normalIndex ++ ],
+								normals[ normalIndex ++ ],
+								normals[ normalIndex ]
+							);
+
+
+							if ( i !== 2 ) faceA.vertexNormals.push( normal );
+							if ( i !== 0 ) faceB.vertexNormals.push( normal );
+
+						}
+
+					}
+
+
+					if ( hasFaceColor ) {
+
+						colorIndex = faces[ offset ++ ];
+						hex = colors[ colorIndex ];
+
+						faceA.color.setHex( hex );
+						faceB.color.setHex( hex );
+
+					}
+
+
+					if ( hasFaceVertexColor ) {
+
+						for ( i = 0; i < 4; i ++ ) {
+
+							colorIndex = faces[ offset ++ ];
+							hex = colors[ colorIndex ];
+
+							if ( i !== 2 ) faceA.vertexColors.push( new Color( hex ) );
+							if ( i !== 0 ) faceB.vertexColors.push( new Color( hex ) );
+
+						}
+
+					}
+
+					geometry.faces.push( faceA );
+					geometry.faces.push( faceB );
+
+				} else {
+
+					face = new Face3();
+					face.a = faces[ offset ++ ];
+					face.b = faces[ offset ++ ];
+					face.c = faces[ offset ++ ];
+
+					if ( hasMaterial ) {
+
+						materialIndex = faces[ offset ++ ];
+						face.materialIndex = materialIndex;
+
+					}
+
+					// to get face <=> uv index correspondence
+
+					fi = geometry.faces.length;
+
+					if ( hasFaceVertexUv ) {
+
+						for ( i = 0; i < nUvLayers; i ++ ) {
+
+							uvLayer = json.uvs[ i ];
+
+							geometry.faceVertexUvs[ i ][ fi ] = [];
+
+							for ( j = 0; j < 3; j ++ ) {
+
+								uvIndex = faces[ offset ++ ];
+
+								u = uvLayer[ uvIndex * 2 ];
+								v = uvLayer[ uvIndex * 2 + 1 ];
+
+								uv = new Vector2( u, v );
+
+								geometry.faceVertexUvs[ i ][ fi ].push( uv );
+
+							}
+
+						}
+
+					}
+
+					if ( hasFaceNormal ) {
+
+						normalIndex = faces[ offset ++ ] * 3;
+
+						face.normal.set(
+							normals[ normalIndex ++ ],
+							normals[ normalIndex ++ ],
+							normals[ normalIndex ]
+						);
+
+					}
+
+					if ( hasFaceVertexNormal ) {
+
+						for ( i = 0; i < 3; i ++ ) {
+
+							normalIndex = faces[ offset ++ ] * 3;
+
+							normal = new Vector3(
+								normals[ normalIndex ++ ],
+								normals[ normalIndex ++ ],
+								normals[ normalIndex ]
+							);
+
+							face.vertexNormals.push( normal );
+
+						}
+
+					}
+
+
+					if ( hasFaceColor ) {
+
+						colorIndex = faces[ offset ++ ];
+						face.color.setHex( colors[ colorIndex ] );
+
+					}
+
+
+					if ( hasFaceVertexColor ) {
+
+						for ( i = 0; i < 3; i ++ ) {
+
+							colorIndex = faces[ offset ++ ];
+							face.vertexColors.push( new Color( colors[ colorIndex ] ) );
+
+						}
+
+					}
+
+					geometry.faces.push( face );
+
+				}
+
+			}
+
+		}
+
+		function parseSkin( json, geometry ) {
+
+			var influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;
+
+			if ( json.skinWeights ) {
+
+				for ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {
+
+					var x = json.skinWeights[ i ];
+					var y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;
+					var z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;
+					var w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;
+
+					geometry.skinWeights.push( new Vector4( x, y, z, w ) );
+
+				}
+
+			}
+
+			if ( json.skinIndices ) {
+
+				for ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {
+
+					var a = json.skinIndices[ i ];
+					var b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;
+					var c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;
+					var d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;
+
+					geometry.skinIndices.push( new Vector4( a, b, c, d ) );
+
+				}
+
+			}
+
+			geometry.bones = json.bones;
+
+			if ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {
+
+				console.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +
+					geometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );
+
+			}
+
+		}
+
+		function parseMorphing( json, geometry ) {
+
+			var scale = json.scale;
+
+			if ( json.morphTargets !== undefined ) {
+
+				for ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {
+
+					geometry.morphTargets[ i ] = {};
+					geometry.morphTargets[ i ].name = json.morphTargets[ i ].name;
+					geometry.morphTargets[ i ].vertices = [];
+
+					var dstVertices = geometry.morphTargets[ i ].vertices;
+					var srcVertices = json.morphTargets[ i ].vertices;
+
+					for ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {
+
+						var vertex = new Vector3();
+						vertex.x = srcVertices[ v ] * scale;
+						vertex.y = srcVertices[ v + 1 ] * scale;
+						vertex.z = srcVertices[ v + 2 ] * scale;
+
+						dstVertices.push( vertex );
+
+					}
+
+				}
+
+			}
+
+			if ( json.morphColors !== undefined && json.morphColors.length > 0 ) {
+
+				console.warn( 'THREE.JSONLoader: "morphColors" no longer supported. Using them as face colors.' );
+
+				var faces = geometry.faces;
+				var morphColors = json.morphColors[ 0 ].colors;
+
+				for ( var i = 0, l = faces.length; i < l; i ++ ) {
+
+					faces[ i ].color.fromArray( morphColors, i * 3 );
+
+				}
+
+			}
+
+		}
+
+		function parseAnimations( json, geometry ) {
+
+			var outputAnimations = [];
+
+			// parse old style Bone/Hierarchy animations
+			var animations = [];
+
+			if ( json.animation !== undefined ) {
+
+				animations.push( json.animation );
+
+			}
+
+			if ( json.animations !== undefined ) {
+
+				if ( json.animations.length ) {
+
+					animations = animations.concat( json.animations );
+
+				} else {
+
+					animations.push( json.animations );
+
+				}
+
+			}
+
+			for ( var i = 0; i < animations.length; i ++ ) {
+
+				var clip = AnimationClip.parseAnimation( animations[ i ], geometry.bones );
+				if ( clip ) outputAnimations.push( clip );
+
+			}
+
+			// parse implicit morph animations
+			if ( geometry.morphTargets ) {
+
+				// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.
+				var morphAnimationClips = AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );
+				outputAnimations = outputAnimations.concat( morphAnimationClips );
+
+			}
+
+			if ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;
+
+		}
+
+		return function ( json, texturePath ) {
+
+			if ( json.data !== undefined ) {
+
+				// Geometry 4.0 spec
+				json = json.data;
+
+			}
+
+			if ( json.scale !== undefined ) {
+
+				json.scale = 1.0 / json.scale;
+
+			} else {
+
+				json.scale = 1.0;
+
+			}
+
+			var geometry = new Geometry();
+
+			parseModel( json, geometry );
+			parseSkin( json, geometry );
+			parseMorphing( json, geometry );
+			parseAnimations( json, geometry );
+
+			geometry.computeFaceNormals();
+			geometry.computeBoundingSphere();
+
+			if ( json.materials === undefined || json.materials.length === 0 ) {
+
+				return { geometry: geometry };
+
+			} else {
+
+				var materials = Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin );
+
+				return { geometry: geometry, materials: materials };
+
+			}
+
+		};
+
+	} )()
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function ObjectLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+	this.texturePath = '';
+
+}
+
+Object.assign( ObjectLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		if ( this.texturePath === '' ) {
+
+			this.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 );
+
+		}
+
+		var scope = this;
+
+		var loader = new FileLoader( scope.manager );
+		loader.load( url, function ( text ) {
+
+			var json = null;
+
+			try {
+
+				json = JSON.parse( text );
+
+			} catch ( error ) {
+
+				if ( onError !== undefined ) onError( error );
+
+				console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message );
+
+				return;
+
+			}
+
+			var metadata = json.metadata;
+
+			if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {
+
+				console.error( 'THREE.ObjectLoader: Can\'t load ' + url + '. Use THREE.JSONLoader instead.' );
+				return;
+
+			}
+
+			scope.parse( json, onLoad );
+
+		}, onProgress, onError );
+
+	},
+
+	setTexturePath: function ( value ) {
+
+		this.texturePath = value;
+
+	},
+
+	setCrossOrigin: function ( value ) {
+
+		this.crossOrigin = value;
+
+	},
+
+	parse: function ( json, onLoad ) {
+
+		var geometries = this.parseGeometries( json.geometries );
+
+		var images = this.parseImages( json.images, function () {
+
+			if ( onLoad !== undefined ) onLoad( object );
+
+		} );
+
+		var textures = this.parseTextures( json.textures, images );
+		var materials = this.parseMaterials( json.materials, textures );
+
+		var object = this.parseObject( json.object, geometries, materials );
+
+		if ( json.animations ) {
+
+			object.animations = this.parseAnimations( json.animations );
+
+		}
+
+		if ( json.images === undefined || json.images.length === 0 ) {
+
+			if ( onLoad !== undefined ) onLoad( object );
+
+		}
+
+		return object;
+
+	},
+
+	parseGeometries: function ( json ) {
+
+		var geometries = {};
+
+		if ( json !== undefined ) {
+
+			var geometryLoader = new JSONLoader();
+			var bufferGeometryLoader = new BufferGeometryLoader();
+
+			for ( var i = 0, l = json.length; i < l; i ++ ) {
+
+				var geometry;
+				var data = json[ i ];
+
+				switch ( data.type ) {
+
+					case 'PlaneGeometry':
+					case 'PlaneBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.width,
+							data.height,
+							data.widthSegments,
+							data.heightSegments
+						);
+
+						break;
+
+					case 'BoxGeometry':
+					case 'BoxBufferGeometry':
+					case 'CubeGeometry': // backwards compatible
+
+						geometry = new Geometries[ data.type ](
+							data.width,
+							data.height,
+							data.depth,
+							data.widthSegments,
+							data.heightSegments,
+							data.depthSegments
+						);
+
+						break;
+
+					case 'CircleGeometry':
+					case 'CircleBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.radius,
+							data.segments,
+							data.thetaStart,
+							data.thetaLength
+						);
+
+						break;
+
+					case 'CylinderGeometry':
+					case 'CylinderBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.radiusTop,
+							data.radiusBottom,
+							data.height,
+							data.radialSegments,
+							data.heightSegments,
+							data.openEnded,
+							data.thetaStart,
+							data.thetaLength
+						);
+
+						break;
+
+					case 'ConeGeometry':
+					case 'ConeBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.radius,
+							data.height,
+							data.radialSegments,
+							data.heightSegments,
+							data.openEnded,
+							data.thetaStart,
+							data.thetaLength
+						);
+
+						break;
+
+					case 'SphereGeometry':
+					case 'SphereBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.radius,
+							data.widthSegments,
+							data.heightSegments,
+							data.phiStart,
+							data.phiLength,
+							data.thetaStart,
+							data.thetaLength
+						);
+
+						break;
+
+					case 'DodecahedronGeometry':
+					case 'DodecahedronBufferGeometry':
+					case 'IcosahedronGeometry':
+					case 'IcosahedronBufferGeometry':
+					case 'OctahedronGeometry':
+					case 'OctahedronBufferGeometry':
+					case 'TetrahedronGeometry':
+					case 'TetrahedronBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.radius,
+							data.detail
+						);
+
+						break;
+
+					case 'RingGeometry':
+					case 'RingBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.innerRadius,
+							data.outerRadius,
+							data.thetaSegments,
+							data.phiSegments,
+							data.thetaStart,
+							data.thetaLength
+						);
+
+						break;
+
+					case 'TorusGeometry':
+					case 'TorusBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.radius,
+							data.tube,
+							data.radialSegments,
+							data.tubularSegments,
+							data.arc
+						);
+
+						break;
+
+					case 'TorusKnotGeometry':
+					case 'TorusKnotBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.radius,
+							data.tube,
+							data.tubularSegments,
+							data.radialSegments,
+							data.p,
+							data.q
+						);
+
+						break;
+
+					case 'LatheGeometry':
+					case 'LatheBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.points,
+							data.segments,
+							data.phiStart,
+							data.phiLength
+						);
+
+						break;
+
+					case 'PolyhedronGeometry':
+					case 'PolyhedronBufferGeometry':
+
+						geometry = new Geometries[ data.type ](
+							data.vertices,
+							data.indices,
+							data.radius,
+							data.details
+						);
+
+						break;
+
+					case 'BufferGeometry':
+
+						geometry = bufferGeometryLoader.parse( data );
+
+						break;
+
+					case 'Geometry':
+
+						geometry = geometryLoader.parse( data, this.texturePath ).geometry;
+
+						break;
+
+					default:
+
+						console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' );
+
+						continue;
+
+				}
+
+				geometry.uuid = data.uuid;
+
+				if ( data.name !== undefined ) geometry.name = data.name;
+
+				geometries[ data.uuid ] = geometry;
+
+			}
+
+		}
+
+		return geometries;
+
+	},
+
+	parseMaterials: function ( json, textures ) {
+
+		var materials = {};
+
+		if ( json !== undefined ) {
+
+			var loader = new MaterialLoader();
+			loader.setTextures( textures );
+
+			for ( var i = 0, l = json.length; i < l; i ++ ) {
+
+				var data = json[ i ];
+
+				if ( data.type === 'MultiMaterial' ) {
+
+					// Deprecated
+
+					var array = [];
+
+					for ( var j = 0; j < data.materials.length; j ++ ) {
+
+						array.push( loader.parse( data.materials[ j ] ) );
+
+					}
+
+					materials[ data.uuid ] = array;
+
+				} else {
+
+					materials[ data.uuid ] = loader.parse( data );
+
+				}
+
+			}
+
+		}
+
+		return materials;
+
+	},
+
+	parseAnimations: function ( json ) {
+
+		var animations = [];
+
+		for ( var i = 0; i < json.length; i ++ ) {
+
+			var clip = AnimationClip.parse( json[ i ] );
+
+			animations.push( clip );
+
+		}
+
+		return animations;
+
+	},
+
+	parseImages: function ( json, onLoad ) {
+
+		var scope = this;
+		var images = {};
+
+		function loadImage( url ) {
+
+			scope.manager.itemStart( url );
+
+			return loader.load( url, function () {
+
+				scope.manager.itemEnd( url );
+
+			}, undefined, function () {
+
+				scope.manager.itemEnd( url );
+				scope.manager.itemError( url );
+
+			} );
+
+		}
+
+		if ( json !== undefined && json.length > 0 ) {
+
+			var manager = new LoadingManager( onLoad );
+
+			var loader = new ImageLoader( manager );
+			loader.setCrossOrigin( this.crossOrigin );
+
+			for ( var i = 0, l = json.length; i < l; i ++ ) {
+
+				var image = json[ i ];
+				var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url;
+
+				images[ image.uuid ] = loadImage( path );
+
+			}
+
+		}
+
+		return images;
+
+	},
+
+	parseTextures: function ( json, images ) {
+
+		function parseConstant( value, type ) {
+
+			if ( typeof value === 'number' ) return value;
+
+			console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );
+
+			return type[ value ];
+
+		}
+
+		var textures = {};
+
+		if ( json !== undefined ) {
+
+			for ( var i = 0, l = json.length; i < l; i ++ ) {
+
+				var data = json[ i ];
+
+				if ( data.image === undefined ) {
+
+					console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );
+
+				}
+
+				if ( images[ data.image ] === undefined ) {
+
+					console.warn( 'THREE.ObjectLoader: Undefined image', data.image );
+
+				}
+
+				var texture = new Texture( images[ data.image ] );
+				texture.needsUpdate = true;
+
+				texture.uuid = data.uuid;
+
+				if ( data.name !== undefined ) texture.name = data.name;
+
+				if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );
+
+				if ( data.offset !== undefined ) texture.offset.fromArray( data.offset );
+				if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );
+				if ( data.center !== undefined ) texture.center.fromArray( data.center );
+				if ( data.rotation !== undefined ) texture.rotation = data.rotation;
+
+				if ( data.wrap !== undefined ) {
+
+					texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );
+					texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );
+
+				}
+
+				if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );
+				if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );
+				if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;
+
+				if ( data.flipY !== undefined ) texture.flipY = data.flipY;
+
+				textures[ data.uuid ] = texture;
+
+			}
+
+		}
+
+		return textures;
+
+	},
+
+	parseObject: function () {
+
+		var matrix = new Matrix4();
+
+		return function parseObject( data, geometries, materials ) {
+
+			var object;
+
+			function getGeometry( name ) {
+
+				if ( geometries[ name ] === undefined ) {
+
+					console.warn( 'THREE.ObjectLoader: Undefined geometry', name );
+
+				}
+
+				return geometries[ name ];
+
+			}
+
+			function getMaterial( name ) {
+
+				if ( name === undefined ) return undefined;
+
+				if ( Array.isArray( name ) ) {
+
+					var array = [];
+
+					for ( var i = 0, l = name.length; i < l; i ++ ) {
+
+						var uuid = name[ i ];
+
+						if ( materials[ uuid ] === undefined ) {
+
+							console.warn( 'THREE.ObjectLoader: Undefined material', uuid );
+
+						}
+
+						array.push( materials[ uuid ] );
+
+					}
+
+					return array;
+
+				}
+
+				if ( materials[ name ] === undefined ) {
+
+					console.warn( 'THREE.ObjectLoader: Undefined material', name );
+
+				}
+
+				return materials[ name ];
+
+			}
+
+			switch ( data.type ) {
+
+				case 'Scene':
+
+					object = new Scene();
+
+					if ( data.background !== undefined ) {
+
+						if ( Number.isInteger( data.background ) ) {
+
+							object.background = new Color( data.background );
+
+						}
+
+					}
+
+					if ( data.fog !== undefined ) {
+
+						if ( data.fog.type === 'Fog' ) {
+
+							object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );
+
+						} else if ( data.fog.type === 'FogExp2' ) {
+
+							object.fog = new FogExp2( data.fog.color, data.fog.density );
+
+						}
+
+					}
+
+					break;
+
+				case 'PerspectiveCamera':
+
+					object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );
+
+					if ( data.focus !== undefined ) object.focus = data.focus;
+					if ( data.zoom !== undefined ) object.zoom = data.zoom;
+					if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;
+					if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;
+					if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );
+
+					break;
+
+				case 'OrthographicCamera':
+
+					object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );
+
+					break;
+
+				case 'AmbientLight':
+
+					object = new AmbientLight( data.color, data.intensity );
+
+					break;
+
+				case 'DirectionalLight':
+
+					object = new DirectionalLight( data.color, data.intensity );
+
+					break;
+
+				case 'PointLight':
+
+					object = new PointLight( data.color, data.intensity, data.distance, data.decay );
+
+					break;
+
+				case 'RectAreaLight':
+
+					object = new RectAreaLight( data.color, data.intensity, data.width, data.height );
+
+					break;
+
+				case 'SpotLight':
+
+					object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );
+
+					break;
+
+				case 'HemisphereLight':
+
+					object = new HemisphereLight( data.color, data.groundColor, data.intensity );
+
+					break;
+
+				case 'SkinnedMesh':
+
+					console.warn( 'THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.' );
+
+				case 'Mesh':
+
+					var geometry = getGeometry( data.geometry );
+					var material = getMaterial( data.material );
+
+					if ( geometry.bones && geometry.bones.length > 0 ) {
+
+						object = new SkinnedMesh( geometry, material );
+
+					} else {
+
+						object = new Mesh( geometry, material );
+
+					}
+
+					break;
+
+				case 'LOD':
+
+					object = new LOD();
+
+					break;
+
+				case 'Line':
+
+					object = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );
+
+					break;
+
+				case 'LineLoop':
+
+					object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );
+
+					break;
+
+				case 'LineSegments':
+
+					object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );
+
+					break;
+
+				case 'PointCloud':
+				case 'Points':
+
+					object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );
+
+					break;
+
+				case 'Sprite':
+
+					object = new Sprite( getMaterial( data.material ) );
+
+					break;
+
+				case 'Group':
+
+					object = new Group();
+
+					break;
+
+				default:
+
+					object = new Object3D();
+
+			}
+
+			object.uuid = data.uuid;
+
+			if ( data.name !== undefined ) object.name = data.name;
+			if ( data.matrix !== undefined ) {
+
+				matrix.fromArray( data.matrix );
+				matrix.decompose( object.position, object.quaternion, object.scale );
+
+			} else {
+
+				if ( data.position !== undefined ) object.position.fromArray( data.position );
+				if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
+				if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );
+				if ( data.scale !== undefined ) object.scale.fromArray( data.scale );
+
+			}
+
+			if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
+			if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;
+
+			if ( data.shadow ) {
+
+				if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;
+				if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;
+				if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );
+				if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );
+
+			}
+
+			if ( data.visible !== undefined ) object.visible = data.visible;
+			if ( data.userData !== undefined ) object.userData = data.userData;
+
+			if ( data.children !== undefined ) {
+
+				var children = data.children;
+
+				for ( var i = 0; i < children.length; i ++ ) {
+
+					object.add( this.parseObject( children[ i ], geometries, materials ) );
+
+				}
+
+			}
+
+			if ( data.type === 'LOD' ) {
+
+				var levels = data.levels;
+
+				for ( var l = 0; l < levels.length; l ++ ) {
+
+					var level = levels[ l ];
+					var child = object.getObjectByProperty( 'uuid', level.object );
+
+					if ( child !== undefined ) {
+
+						object.addLevel( child, level.distance );
+
+					}
+
+				}
+
+			}
+
+			return object;
+
+		};
+
+	}()
+
+} );
+
+var TEXTURE_MAPPING = {
+	UVMapping: UVMapping,
+	CubeReflectionMapping: CubeReflectionMapping,
+	CubeRefractionMapping: CubeRefractionMapping,
+	EquirectangularReflectionMapping: EquirectangularReflectionMapping,
+	EquirectangularRefractionMapping: EquirectangularRefractionMapping,
+	SphericalReflectionMapping: SphericalReflectionMapping,
+	CubeUVReflectionMapping: CubeUVReflectionMapping,
+	CubeUVRefractionMapping: CubeUVRefractionMapping
+};
+
+var TEXTURE_WRAPPING = {
+	RepeatWrapping: RepeatWrapping,
+	ClampToEdgeWrapping: ClampToEdgeWrapping,
+	MirroredRepeatWrapping: MirroredRepeatWrapping
+};
+
+var TEXTURE_FILTER = {
+	NearestFilter: NearestFilter,
+	NearestMipMapNearestFilter: NearestMipMapNearestFilter,
+	NearestMipMapLinearFilter: NearestMipMapLinearFilter,
+	LinearFilter: LinearFilter,
+	LinearMipMapNearestFilter: LinearMipMapNearestFilter,
+	LinearMipMapLinearFilter: LinearMipMapLinearFilter
+};
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ *
+ * Bezier Curves formulas obtained from
+ * http://en.wikipedia.org/wiki/Bézier_curve
+ */
+
+function CatmullRom( t, p0, p1, p2, p3 ) {
+
+	var v0 = ( p2 - p0 ) * 0.5;
+	var v1 = ( p3 - p1 ) * 0.5;
+	var t2 = t * t;
+	var t3 = t * t2;
+	return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;
+
+}
+
+//
+
+function QuadraticBezierP0( t, p ) {
+
+	var k = 1 - t;
+	return k * k * p;
+
+}
+
+function QuadraticBezierP1( t, p ) {
+
+	return 2 * ( 1 - t ) * t * p;
+
+}
+
+function QuadraticBezierP2( t, p ) {
+
+	return t * t * p;
+
+}
+
+function QuadraticBezier( t, p0, p1, p2 ) {
+
+	return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +
+		QuadraticBezierP2( t, p2 );
+
+}
+
+//
+
+function CubicBezierP0( t, p ) {
+
+	var k = 1 - t;
+	return k * k * k * p;
+
+}
+
+function CubicBezierP1( t, p ) {
+
+	var k = 1 - t;
+	return 3 * k * k * t * p;
+
+}
+
+function CubicBezierP2( t, p ) {
+
+	return 3 * ( 1 - t ) * t * t * p;
+
+}
+
+function CubicBezierP3( t, p ) {
+
+	return t * t * t * p;
+
+}
+
+function CubicBezier( t, p0, p1, p2, p3 ) {
+
+	return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +
+		CubicBezierP3( t, p3 );
+
+}
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ * Extensible curve object
+ *
+ * Some common of curve methods:
+ * .getPoint( t, optionalTarget ), .getTangent( t )
+ * .getPointAt( u, optionalTarget ), .getTangentAt( u )
+ * .getPoints(), .getSpacedPoints()
+ * .getLength()
+ * .updateArcLengths()
+ *
+ * This following curves inherit from THREE.Curve:
+ *
+ * -- 2D curves --
+ * THREE.ArcCurve
+ * THREE.CubicBezierCurve
+ * THREE.EllipseCurve
+ * THREE.LineCurve
+ * THREE.QuadraticBezierCurve
+ * THREE.SplineCurve
+ *
+ * -- 3D curves --
+ * THREE.CatmullRomCurve3
+ * THREE.CubicBezierCurve3
+ * THREE.LineCurve3
+ * THREE.QuadraticBezierCurve3
+ *
+ * A series of curves can be represented as a THREE.CurvePath.
+ *
+ **/
+
+/**************************************************************
+ *	Abstract Curve base class
+ **************************************************************/
+
+function Curve() {
+
+	this.type = 'Curve';
+
+	this.arcLengthDivisions = 200;
+
+}
+
+Object.assign( Curve.prototype, {
+
+	// Virtual base class method to overwrite and implement in subclasses
+	//	- t [0 .. 1]
+
+	getPoint: function ( /* t, optionalTarget */ ) {
+
+		console.warn( 'THREE.Curve: .getPoint() not implemented.' );
+		return null;
+
+	},
+
+	// Get point at relative position in curve according to arc length
+	// - u [0 .. 1]
+
+	getPointAt: function ( u, optionalTarget ) {
+
+		var t = this.getUtoTmapping( u );
+		return this.getPoint( t, optionalTarget );
+
+	},
+
+	// Get sequence of points using getPoint( t )
+
+	getPoints: function ( divisions ) {
+
+		if ( divisions === undefined ) divisions = 5;
+
+		var points = [];
+
+		for ( var d = 0; d <= divisions; d ++ ) {
+
+			points.push( this.getPoint( d / divisions ) );
+
+		}
+
+		return points;
+
+	},
+
+	// Get sequence of points using getPointAt( u )
+
+	getSpacedPoints: function ( divisions ) {
+
+		if ( divisions === undefined ) divisions = 5;
+
+		var points = [];
+
+		for ( var d = 0; d <= divisions; d ++ ) {
+
+			points.push( this.getPointAt( d / divisions ) );
+
+		}
+
+		return points;
+
+	},
+
+	// Get total curve arc length
+
+	getLength: function () {
+
+		var lengths = this.getLengths();
+		return lengths[ lengths.length - 1 ];
+
+	},
+
+	// Get list of cumulative segment lengths
+
+	getLengths: function ( divisions ) {
+
+		if ( divisions === undefined ) divisions = this.arcLengthDivisions;
+
+		if ( this.cacheArcLengths &&
+			( this.cacheArcLengths.length === divisions + 1 ) &&
+			! this.needsUpdate ) {
+
+			return this.cacheArcLengths;
+
+		}
+
+		this.needsUpdate = false;
+
+		var cache = [];
+		var current, last = this.getPoint( 0 );
+		var p, sum = 0;
+
+		cache.push( 0 );
+
+		for ( p = 1; p <= divisions; p ++ ) {
+
+			current = this.getPoint( p / divisions );
+			sum += current.distanceTo( last );
+			cache.push( sum );
+			last = current;
+
+		}
+
+		this.cacheArcLengths = cache;
+
+		return cache; // { sums: cache, sum: sum }; Sum is in the last element.
+
+	},
+
+	updateArcLengths: function () {
+
+		this.needsUpdate = true;
+		this.getLengths();
+
+	},
+
+	// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant
+
+	getUtoTmapping: function ( u, distance ) {
+
+		var arcLengths = this.getLengths();
+
+		var i = 0, il = arcLengths.length;
+
+		var targetArcLength; // The targeted u distance value to get
+
+		if ( distance ) {
+
+			targetArcLength = distance;
+
+		} else {
+
+			targetArcLength = u * arcLengths[ il - 1 ];
+
+		}
+
+		// binary search for the index with largest value smaller than target u distance
+
+		var low = 0, high = il - 1, comparison;
+
+		while ( low <= high ) {
+
+			i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats
+
+			comparison = arcLengths[ i ] - targetArcLength;
+
+			if ( comparison < 0 ) {
+
+				low = i + 1;
+
+			} else if ( comparison > 0 ) {
+
+				high = i - 1;
+
+			} else {
+
+				high = i;
+				break;
+
+				// DONE
+
+			}
+
+		}
+
+		i = high;
+
+		if ( arcLengths[ i ] === targetArcLength ) {
+
+			return i / ( il - 1 );
+
+		}
+
+		// we could get finer grain at lengths, or use simple interpolation between two points
+
+		var lengthBefore = arcLengths[ i ];
+		var lengthAfter = arcLengths[ i + 1 ];
+
+		var segmentLength = lengthAfter - lengthBefore;
+
+		// determine where we are between the 'before' and 'after' points
+
+		var segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;
+
+		// add that fractional amount to t
+
+		var t = ( i + segmentFraction ) / ( il - 1 );
+
+		return t;
+
+	},
+
+	// Returns a unit vector tangent at t
+	// In case any sub curve does not implement its tangent derivation,
+	// 2 points a small delta apart will be used to find its gradient
+	// which seems to give a reasonable approximation
+
+	getTangent: function ( t ) {
+
+		var delta = 0.0001;
+		var t1 = t - delta;
+		var t2 = t + delta;
+
+		// Capping in case of danger
+
+		if ( t1 < 0 ) t1 = 0;
+		if ( t2 > 1 ) t2 = 1;
+
+		var pt1 = this.getPoint( t1 );
+		var pt2 = this.getPoint( t2 );
+
+		var vec = pt2.clone().sub( pt1 );
+		return vec.normalize();
+
+	},
+
+	getTangentAt: function ( u ) {
+
+		var t = this.getUtoTmapping( u );
+		return this.getTangent( t );
+
+	},
+
+	computeFrenetFrames: function ( segments, closed ) {
+
+		// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf
+
+		var normal = new Vector3();
+
+		var tangents = [];
+		var normals = [];
+		var binormals = [];
+
+		var vec = new Vector3();
+		var mat = new Matrix4();
+
+		var i, u, theta;
+
+		// compute the tangent vectors for each segment on the curve
+
+		for ( i = 0; i <= segments; i ++ ) {
+
+			u = i / segments;
+
+			tangents[ i ] = this.getTangentAt( u );
+			tangents[ i ].normalize();
+
+		}
+
+		// select an initial normal vector perpendicular to the first tangent vector,
+		// and in the direction of the minimum tangent xyz component
+
+		normals[ 0 ] = new Vector3();
+		binormals[ 0 ] = new Vector3();
+		var min = Number.MAX_VALUE;
+		var tx = Math.abs( tangents[ 0 ].x );
+		var ty = Math.abs( tangents[ 0 ].y );
+		var tz = Math.abs( tangents[ 0 ].z );
+
+		if ( tx <= min ) {
+
+			min = tx;
+			normal.set( 1, 0, 0 );
+
+		}
+
+		if ( ty <= min ) {
+
+			min = ty;
+			normal.set( 0, 1, 0 );
+
+		}
+
+		if ( tz <= min ) {
+
+			normal.set( 0, 0, 1 );
+
+		}
+
+		vec.crossVectors( tangents[ 0 ], normal ).normalize();
+
+		normals[ 0 ].crossVectors( tangents[ 0 ], vec );
+		binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );
+
+
+		// compute the slowly-varying normal and binormal vectors for each segment on the curve
+
+		for ( i = 1; i <= segments; i ++ ) {
+
+			normals[ i ] = normals[ i - 1 ].clone();
+
+			binormals[ i ] = binormals[ i - 1 ].clone();
+
+			vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );
+
+			if ( vec.length() > Number.EPSILON ) {
+
+				vec.normalize();
+
+				theta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors
+
+				normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );
+
+			}
+
+			binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );
+
+		}
+
+		// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same
+
+		if ( closed === true ) {
+
+			theta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );
+			theta /= segments;
+
+			if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {
+
+				theta = - theta;
+
+			}
+
+			for ( i = 1; i <= segments; i ++ ) {
+
+				// twist a little...
+				normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
+				binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );
+
+			}
+
+		}
+
+		return {
+			tangents: tangents,
+			normals: normals,
+			binormals: binormals
+		};
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( source ) {
+
+		this.arcLengthDivisions = source.arcLengthDivisions;
+
+		return this;
+
+	}
+
+} );
+
+function LineCurve( v1, v2 ) {
+
+	Curve.call( this );
+
+	this.type = 'LineCurve';
+
+	this.v1 = v1 || new Vector2();
+	this.v2 = v2 || new Vector2();
+
+}
+
+LineCurve.prototype = Object.create( Curve.prototype );
+LineCurve.prototype.constructor = LineCurve;
+
+LineCurve.prototype.isLineCurve = true;
+
+LineCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector2();
+
+	if ( t === 1 ) {
+
+		point.copy( this.v2 );
+
+	} else {
+
+		point.copy( this.v2 ).sub( this.v1 );
+		point.multiplyScalar( t ).add( this.v1 );
+
+	}
+
+	return point;
+
+};
+
+// Line curve is linear, so we can overwrite default getPointAt
+
+LineCurve.prototype.getPointAt = function ( u, optionalTarget ) {
+
+	return this.getPoint( u, optionalTarget );
+
+};
+
+LineCurve.prototype.getTangent = function ( /* t */ ) {
+
+	var tangent = this.v2.clone().sub( this.v1 );
+
+	return tangent.normalize();
+
+};
+
+LineCurve.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.v1.copy( source.v1 );
+	this.v2.copy( source.v2 );
+
+	return this;
+
+};
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ *
+ **/
+
+/**************************************************************
+ *	Curved Path - a curve path is simply a array of connected
+ *  curves, but retains the api of a curve
+ **************************************************************/
+
+function CurvePath() {
+
+	Curve.call( this );
+
+	this.type = 'CurvePath';
+
+	this.curves = [];
+	this.autoClose = false; // Automatically closes the path
+
+}
+
+CurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {
+
+	constructor: CurvePath,
+
+	add: function ( curve ) {
+
+		this.curves.push( curve );
+
+	},
+
+	closePath: function () {
+
+		// Add a line curve if start and end of lines are not connected
+		var startPoint = this.curves[ 0 ].getPoint( 0 );
+		var endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );
+
+		if ( ! startPoint.equals( endPoint ) ) {
+
+			this.curves.push( new LineCurve( endPoint, startPoint ) );
+
+		}
+
+	},
+
+	// To get accurate point with reference to
+	// entire path distance at time t,
+	// following has to be done:
+
+	// 1. Length of each sub path have to be known
+	// 2. Locate and identify type of curve
+	// 3. Get t for the curve
+	// 4. Return curve.getPointAt(t')
+
+	getPoint: function ( t ) {
+
+		var d = t * this.getLength();
+		var curveLengths = this.getCurveLengths();
+		var i = 0;
+
+		// To think about boundaries points.
+
+		while ( i < curveLengths.length ) {
+
+			if ( curveLengths[ i ] >= d ) {
+
+				var diff = curveLengths[ i ] - d;
+				var curve = this.curves[ i ];
+
+				var segmentLength = curve.getLength();
+				var u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;
+
+				return curve.getPointAt( u );
+
+			}
+
+			i ++;
+
+		}
+
+		return null;
+
+		// loop where sum != 0, sum > d , sum+1 <d
+
+	},
+
+	// We cannot use the default THREE.Curve getPoint() with getLength() because in
+	// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
+	// getPoint() depends on getLength
+
+	getLength: function () {
+
+		var lens = this.getCurveLengths();
+		return lens[ lens.length - 1 ];
+
+	},
+
+	// cacheLengths must be recalculated.
+	updateArcLengths: function () {
+
+		this.needsUpdate = true;
+		this.cacheLengths = null;
+		this.getCurveLengths();
+
+	},
+
+	// Compute lengths and cache them
+	// We cannot overwrite getLengths() because UtoT mapping uses it.
+
+	getCurveLengths: function () {
+
+		// We use cache values if curves and cache array are same length
+
+		if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {
+
+			return this.cacheLengths;
+
+		}
+
+		// Get length of sub-curve
+		// Push sums into cached array
+
+		var lengths = [], sums = 0;
+
+		for ( var i = 0, l = this.curves.length; i < l; i ++ ) {
+
+			sums += this.curves[ i ].getLength();
+			lengths.push( sums );
+
+		}
+
+		this.cacheLengths = lengths;
+
+		return lengths;
+
+	},
+
+	getSpacedPoints: function ( divisions ) {
+
+		if ( divisions === undefined ) divisions = 40;
+
+		var points = [];
+
+		for ( var i = 0; i <= divisions; i ++ ) {
+
+			points.push( this.getPoint( i / divisions ) );
+
+		}
+
+		if ( this.autoClose ) {
+
+			points.push( points[ 0 ] );
+
+		}
+
+		return points;
+
+	},
+
+	getPoints: function ( divisions ) {
+
+		divisions = divisions || 12;
+
+		var points = [], last;
+
+		for ( var i = 0, curves = this.curves; i < curves.length; i ++ ) {
+
+			var curve = curves[ i ];
+			var resolution = ( curve && curve.isEllipseCurve ) ? divisions * 2
+				: ( curve && curve.isLineCurve ) ? 1
+					: ( curve && curve.isSplineCurve ) ? divisions * curve.points.length
+						: divisions;
+
+			var pts = curve.getPoints( resolution );
+
+			for ( var j = 0; j < pts.length; j ++ ) {
+
+				var point = pts[ j ];
+
+				if ( last && last.equals( point ) ) continue; // ensures no consecutive points are duplicates
+
+				points.push( point );
+				last = point;
+
+			}
+
+		}
+
+		if ( this.autoClose && points.length > 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {
+
+			points.push( points[ 0 ] );
+
+		}
+
+		return points;
+
+	},
+
+	copy: function ( source ) {
+
+		Curve.prototype.copy.call( this, source );
+
+		this.curves = [];
+
+		for ( var i = 0, l = source.curves.length; i < l; i ++ ) {
+
+			var curve = source.curves[ i ];
+
+			this.curves.push( curve.clone() );
+
+		}
+
+		this.autoClose = source.autoClose;
+
+		return this;
+
+	}
+
+} );
+
+function EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
+
+	Curve.call( this );
+
+	this.type = 'EllipseCurve';
+
+	this.aX = aX || 0;
+	this.aY = aY || 0;
+
+	this.xRadius = xRadius || 1;
+	this.yRadius = yRadius || 1;
+
+	this.aStartAngle = aStartAngle || 0;
+	this.aEndAngle = aEndAngle || 2 * Math.PI;
+
+	this.aClockwise = aClockwise || false;
+
+	this.aRotation = aRotation || 0;
+
+}
+
+EllipseCurve.prototype = Object.create( Curve.prototype );
+EllipseCurve.prototype.constructor = EllipseCurve;
+
+EllipseCurve.prototype.isEllipseCurve = true;
+
+EllipseCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector2();
+
+	var twoPi = Math.PI * 2;
+	var deltaAngle = this.aEndAngle - this.aStartAngle;
+	var samePoints = Math.abs( deltaAngle ) < Number.EPSILON;
+
+	// ensures that deltaAngle is 0 .. 2 PI
+	while ( deltaAngle < 0 ) deltaAngle += twoPi;
+	while ( deltaAngle > twoPi ) deltaAngle -= twoPi;
+
+	if ( deltaAngle < Number.EPSILON ) {
+
+		if ( samePoints ) {
+
+			deltaAngle = 0;
+
+		} else {
+
+			deltaAngle = twoPi;
+
+		}
+
+	}
+
+	if ( this.aClockwise === true && ! samePoints ) {
+
+		if ( deltaAngle === twoPi ) {
+
+			deltaAngle = - twoPi;
+
+		} else {
+
+			deltaAngle = deltaAngle - twoPi;
+
+		}
+
+	}
+
+	var angle = this.aStartAngle + t * deltaAngle;
+	var x = this.aX + this.xRadius * Math.cos( angle );
+	var y = this.aY + this.yRadius * Math.sin( angle );
+
+	if ( this.aRotation !== 0 ) {
+
+		var cos = Math.cos( this.aRotation );
+		var sin = Math.sin( this.aRotation );
+
+		var tx = x - this.aX;
+		var ty = y - this.aY;
+
+		// Rotate the point about the center of the ellipse.
+		x = tx * cos - ty * sin + this.aX;
+		y = tx * sin + ty * cos + this.aY;
+
+	}
+
+	return point.set( x, y );
+
+};
+
+EllipseCurve.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.aX = source.aX;
+	this.aY = source.aY;
+
+	this.xRadius = source.xRadius;
+	this.yRadius = source.yRadius;
+
+	this.aStartAngle = source.aStartAngle;
+	this.aEndAngle = source.aEndAngle;
+
+	this.aClockwise = source.aClockwise;
+
+	this.aRotation = source.aRotation;
+
+	return this;
+
+};
+
+function SplineCurve( points /* array of Vector2 */ ) {
+
+	Curve.call( this );
+
+	this.type = 'SplineCurve';
+
+	this.points = points || [];
+
+}
+
+SplineCurve.prototype = Object.create( Curve.prototype );
+SplineCurve.prototype.constructor = SplineCurve;
+
+SplineCurve.prototype.isSplineCurve = true;
+
+SplineCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector2();
+
+	var points = this.points;
+	var p = ( points.length - 1 ) * t;
+
+	var intPoint = Math.floor( p );
+	var weight = p - intPoint;
+
+	var p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
+	var p1 = points[ intPoint ];
+	var p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
+	var p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];
+
+	point.set(
+		CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),
+		CatmullRom( weight, p0.y, p1.y, p2.y, p3.y )
+	);
+
+	return point;
+
+};
+
+SplineCurve.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.points = [];
+
+	for ( var i = 0, l = source.points.length; i < l; i ++ ) {
+
+		var point = source.points[ i ];
+
+		this.points.push( point.clone() );
+
+	}
+
+	return this;
+
+};
+
+function CubicBezierCurve( v0, v1, v2, v3 ) {
+
+	Curve.call( this );
+
+	this.type = 'CubicBezierCurve';
+
+	this.v0 = v0 || new Vector2();
+	this.v1 = v1 || new Vector2();
+	this.v2 = v2 || new Vector2();
+	this.v3 = v3 || new Vector2();
+
+}
+
+CubicBezierCurve.prototype = Object.create( Curve.prototype );
+CubicBezierCurve.prototype.constructor = CubicBezierCurve;
+
+CubicBezierCurve.prototype.isCubicBezierCurve = true;
+
+CubicBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector2();
+
+	var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
+
+	point.set(
+		CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
+		CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
+	);
+
+	return point;
+
+};
+
+CubicBezierCurve.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.v0.copy( source.v0 );
+	this.v1.copy( source.v1 );
+	this.v2.copy( source.v2 );
+	this.v3.copy( source.v3 );
+
+	return this;
+
+};
+
+function QuadraticBezierCurve( v0, v1, v2 ) {
+
+	Curve.call( this );
+
+	this.type = 'QuadraticBezierCurve';
+
+	this.v0 = v0 || new Vector2();
+	this.v1 = v1 || new Vector2();
+	this.v2 = v2 || new Vector2();
+
+}
+
+QuadraticBezierCurve.prototype = Object.create( Curve.prototype );
+QuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;
+
+QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;
+
+QuadraticBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector2();
+
+	var v0 = this.v0, v1 = this.v1, v2 = this.v2;
+
+	point.set(
+		QuadraticBezier( t, v0.x, v1.x, v2.x ),
+		QuadraticBezier( t, v0.y, v1.y, v2.y )
+	);
+
+	return point;
+
+};
+
+QuadraticBezierCurve.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.v0.copy( source.v0 );
+	this.v1.copy( source.v1 );
+	this.v2.copy( source.v2 );
+
+	return this;
+
+};
+
+var PathPrototype = Object.assign( Object.create( CurvePath.prototype ), {
+
+	setFromPoints: function ( points ) {
+
+		this.moveTo( points[ 0 ].x, points[ 0 ].y );
+
+		for ( var i = 1, l = points.length; i < l; i ++ ) {
+
+			this.lineTo( points[ i ].x, points[ i ].y );
+
+		}
+
+	},
+
+	moveTo: function ( x, y ) {
+
+		this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?
+
+	},
+
+	lineTo: function ( x, y ) {
+
+		var curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
+		this.curves.push( curve );
+
+		this.currentPoint.set( x, y );
+
+	},
+
+	quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {
+
+		var curve = new QuadraticBezierCurve(
+			this.currentPoint.clone(),
+			new Vector2( aCPx, aCPy ),
+			new Vector2( aX, aY )
+		);
+
+		this.curves.push( curve );
+
+		this.currentPoint.set( aX, aY );
+
+	},
+
+	bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {
+
+		var curve = new CubicBezierCurve(
+			this.currentPoint.clone(),
+			new Vector2( aCP1x, aCP1y ),
+			new Vector2( aCP2x, aCP2y ),
+			new Vector2( aX, aY )
+		);
+
+		this.curves.push( curve );
+
+		this.currentPoint.set( aX, aY );
+
+	},
+
+	splineThru: function ( pts /*Array of Vector*/ ) {
+
+		var npts = [ this.currentPoint.clone() ].concat( pts );
+
+		var curve = new SplineCurve( npts );
+		this.curves.push( curve );
+
+		this.currentPoint.copy( pts[ pts.length - 1 ] );
+
+	},
+
+	arc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
+
+		var x0 = this.currentPoint.x;
+		var y0 = this.currentPoint.y;
+
+		this.absarc( aX + x0, aY + y0, aRadius,
+			aStartAngle, aEndAngle, aClockwise );
+
+	},
+
+	absarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
+
+		this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
+
+	},
+
+	ellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
+
+		var x0 = this.currentPoint.x;
+		var y0 = this.currentPoint.y;
+
+		this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
+
+	},
+
+	absellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
+
+		var curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
+
+		if ( this.curves.length > 0 ) {
+
+			// if a previous curve is present, attempt to join
+			var firstPoint = curve.getPoint( 0 );
+
+			if ( ! firstPoint.equals( this.currentPoint ) ) {
+
+				this.lineTo( firstPoint.x, firstPoint.y );
+
+			}
+
+		}
+
+		this.curves.push( curve );
+
+		var lastPoint = curve.getPoint( 1 );
+		this.currentPoint.copy( lastPoint );
+
+	},
+
+	copy: function ( source ) {
+
+		CurvePath.prototype.copy.call( this, source );
+
+		this.currentPoint.copy( source.currentPoint );
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ * Creates free form 2d path using series of points, lines or curves.
+ **/
+
+function Path( points ) {
+
+	CurvePath.call( this );
+
+	this.type = 'Path';
+
+	this.currentPoint = new Vector2();
+
+	if ( points ) {
+
+		this.setFromPoints( points );
+
+	}
+
+}
+
+Path.prototype = PathPrototype;
+PathPrototype.constructor = Path;
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ * Defines a 2d shape plane using paths.
+ **/
+
+// STEP 1 Create a path.
+// STEP 2 Turn path into shape.
+// STEP 3 ExtrudeGeometry takes in Shape/Shapes
+// STEP 3a - Extract points from each shape, turn to vertices
+// STEP 3b - Triangulate each shape, add faces.
+
+function Shape( points ) {
+
+	Path.call( this, points );
+
+	this.type = 'Shape';
+
+	this.holes = [];
+
+}
+
+Shape.prototype = Object.assign( Object.create( PathPrototype ), {
+
+	constructor: Shape,
+
+	getPointsHoles: function ( divisions ) {
+
+		var holesPts = [];
+
+		for ( var i = 0, l = this.holes.length; i < l; i ++ ) {
+
+			holesPts[ i ] = this.holes[ i ].getPoints( divisions );
+
+		}
+
+		return holesPts;
+
+	},
+
+	// get points of shape and holes (keypoints based on segments parameter)
+
+	extractPoints: function ( divisions ) {
+
+		return {
+
+			shape: this.getPoints( divisions ),
+			holes: this.getPointsHoles( divisions )
+
+		};
+
+	},
+
+	copy: function ( source ) {
+
+		Path.prototype.copy.call( this, source );
+
+		this.holes = [];
+
+		for ( var i = 0, l = source.holes.length; i < l; i ++ ) {
+
+			var hole = source.holes[ i ];
+
+			this.holes.push( hole.clone() );
+
+		}
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ * minimal class for proxing functions to Path. Replaces old "extractSubpaths()"
+ **/
+
+function ShapePath() {
+
+	this.type = 'ShapePath';
+
+	this.subPaths = [];
+	this.currentPath = null;
+
+}
+
+Object.assign( ShapePath.prototype, {
+
+	moveTo: function ( x, y ) {
+
+		this.currentPath = new Path();
+		this.subPaths.push( this.currentPath );
+		this.currentPath.moveTo( x, y );
+
+	},
+
+	lineTo: function ( x, y ) {
+
+		this.currentPath.lineTo( x, y );
+
+	},
+
+	quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {
+
+		this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );
+
+	},
+
+	bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {
+
+		this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );
+
+	},
+
+	splineThru: function ( pts ) {
+
+		this.currentPath.splineThru( pts );
+
+	},
+
+	toShapes: function ( isCCW, noHoles ) {
+
+		function toShapesNoHoles( inSubpaths ) {
+
+			var shapes = [];
+
+			for ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {
+
+				var tmpPath = inSubpaths[ i ];
+
+				var tmpShape = new Shape();
+				tmpShape.curves = tmpPath.curves;
+
+				shapes.push( tmpShape );
+
+			}
+
+			return shapes;
+
+		}
+
+		function isPointInsidePolygon( inPt, inPolygon ) {
+
+			var polyLen = inPolygon.length;
+
+			// inPt on polygon contour => immediate success    or
+			// toggling of inside/outside at every single! intersection point of an edge
+			//  with the horizontal line through inPt, left of inPt
+			//  not counting lowerY endpoints of edges and whole edges on that line
+			var inside = false;
+			for ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {
+
+				var edgeLowPt = inPolygon[ p ];
+				var edgeHighPt = inPolygon[ q ];
+
+				var edgeDx = edgeHighPt.x - edgeLowPt.x;
+				var edgeDy = edgeHighPt.y - edgeLowPt.y;
+
+				if ( Math.abs( edgeDy ) > Number.EPSILON ) {
+
+					// not parallel
+					if ( edgeDy < 0 ) {
+
+						edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;
+						edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;
+
+					}
+					if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;
+
+					if ( inPt.y === edgeLowPt.y ) {
+
+						if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
+						// continue;				// no intersection or edgeLowPt => doesn't count !!!
+
+					} else {
+
+						var perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
+						if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
+						if ( perpEdge < 0 ) 				continue;
+						inside = ! inside;		// true intersection left of inPt
+
+					}
+
+				} else {
+
+					// parallel or collinear
+					if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
+					// edge lies on the same horizontal line as inPt
+					if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
+						 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
+					// continue;
+
+				}
+
+			}
+
+			return	inside;
+
+		}
+
+		var isClockWise = ShapeUtils.isClockWise;
+
+		var subPaths = this.subPaths;
+		if ( subPaths.length === 0 ) return [];
+
+		if ( noHoles === true )	return	toShapesNoHoles( subPaths );
+
+
+		var solid, tmpPath, tmpShape, shapes = [];
+
+		if ( subPaths.length === 1 ) {
+
+			tmpPath = subPaths[ 0 ];
+			tmpShape = new Shape();
+			tmpShape.curves = tmpPath.curves;
+			shapes.push( tmpShape );
+			return shapes;
+
+		}
+
+		var holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
+		holesFirst = isCCW ? ! holesFirst : holesFirst;
+
+		// console.log("Holes first", holesFirst);
+
+		var betterShapeHoles = [];
+		var newShapes = [];
+		var newShapeHoles = [];
+		var mainIdx = 0;
+		var tmpPoints;
+
+		newShapes[ mainIdx ] = undefined;
+		newShapeHoles[ mainIdx ] = [];
+
+		for ( var i = 0, l = subPaths.length; i < l; i ++ ) {
+
+			tmpPath = subPaths[ i ];
+			tmpPoints = tmpPath.getPoints();
+			solid = isClockWise( tmpPoints );
+			solid = isCCW ? ! solid : solid;
+
+			if ( solid ) {
+
+				if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;
+
+				newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };
+				newShapes[ mainIdx ].s.curves = tmpPath.curves;
+
+				if ( holesFirst )	mainIdx ++;
+				newShapeHoles[ mainIdx ] = [];
+
+				//console.log('cw', i);
+
+			} else {
+
+				newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );
+
+				//console.log('ccw', i);
+
+			}
+
+		}
+
+		// only Holes? -> probably all Shapes with wrong orientation
+		if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );
+
+
+		if ( newShapes.length > 1 ) {
+
+			var ambiguous = false;
+			var toChange = [];
+
+			for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {
+
+				betterShapeHoles[ sIdx ] = [];
+
+			}
+
+			for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {
+
+				var sho = newShapeHoles[ sIdx ];
+
+				for ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {
+
+					var ho = sho[ hIdx ];
+					var hole_unassigned = true;
+
+					for ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {
+
+						if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {
+
+							if ( sIdx !== s2Idx )	toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );
+							if ( hole_unassigned ) {
+
+								hole_unassigned = false;
+								betterShapeHoles[ s2Idx ].push( ho );
+
+							} else {
+
+								ambiguous = true;
+
+							}
+
+						}
+
+					}
+					if ( hole_unassigned ) {
+
+						betterShapeHoles[ sIdx ].push( ho );
+
+					}
+
+				}
+
+			}
+			// console.log("ambiguous: ", ambiguous);
+			if ( toChange.length > 0 ) {
+
+				// console.log("to change: ", toChange);
+				if ( ! ambiguous )	newShapeHoles = betterShapeHoles;
+
+			}
+
+		}
+
+		var tmpHoles;
+
+		for ( var i = 0, il = newShapes.length; i < il; i ++ ) {
+
+			tmpShape = newShapes[ i ].s;
+			shapes.push( tmpShape );
+			tmpHoles = newShapeHoles[ i ];
+
+			for ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {
+
+				tmpShape.holes.push( tmpHoles[ j ].h );
+
+			}
+
+		}
+
+		//console.log("shape", shapes);
+
+		return shapes;
+
+	}
+
+} );
+
+/**
+ * @author zz85 / http://www.lab4games.net/zz85/blog
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Font( data ) {
+
+	this.type = 'Font';
+
+	this.data = data;
+
+}
+
+Object.assign( Font.prototype, {
+
+	isFont: true,
+
+	generateShapes: function ( text, size, divisions ) {
+
+		function createPaths( text ) {
+
+			var chars = String( text ).split( '' );
+			var scale = size / data.resolution;
+			var line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale;
+
+			var offsetX = 0, offsetY = 0;
+
+			var paths = [];
+
+			for ( var i = 0; i < chars.length; i ++ ) {
+
+				var char = chars[ i ];
+
+				if ( char === '\n' ) {
+
+					offsetX = 0;
+					offsetY -= line_height;
+
+				} else {
+
+					var ret = createPath( char, scale, offsetX, offsetY );
+					offsetX += ret.offsetX;
+					paths.push( ret.path );
+
+				}
+
+			}
+
+			return paths;
+
+		}
+
+		function createPath( c, scale, offsetX, offsetY ) {
+
+			var glyph = data.glyphs[ c ] || data.glyphs[ '?' ];
+
+			if ( ! glyph ) return;
+
+			var path = new ShapePath();
+
+			var pts = [];
+			var x, y, cpx, cpy, cpx0, cpy0, cpx1, cpy1, cpx2, cpy2, laste;
+
+			if ( glyph.o ) {
+
+				var outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );
+
+				for ( var i = 0, l = outline.length; i < l; ) {
+
+					var action = outline[ i ++ ];
+
+					switch ( action ) {
+
+						case 'm': // moveTo
+
+							x = outline[ i ++ ] * scale + offsetX;
+							y = outline[ i ++ ] * scale + offsetY;
+
+							path.moveTo( x, y );
+
+							break;
+
+						case 'l': // lineTo
+
+							x = outline[ i ++ ] * scale + offsetX;
+							y = outline[ i ++ ] * scale + offsetY;
+
+							path.lineTo( x, y );
+
+							break;
+
+						case 'q': // quadraticCurveTo
+
+							cpx = outline[ i ++ ] * scale + offsetX;
+							cpy = outline[ i ++ ] * scale + offsetY;
+							cpx1 = outline[ i ++ ] * scale + offsetX;
+							cpy1 = outline[ i ++ ] * scale + offsetY;
+
+							path.quadraticCurveTo( cpx1, cpy1, cpx, cpy );
+
+							laste = pts[ pts.length - 1 ];
+
+							if ( laste ) {
+
+								cpx0 = laste.x;
+								cpy0 = laste.y;
+
+							}
+
+							break;
+
+						case 'b': // bezierCurveTo
+
+							cpx = outline[ i ++ ] * scale + offsetX;
+							cpy = outline[ i ++ ] * scale + offsetY;
+							cpx1 = outline[ i ++ ] * scale + offsetX;
+							cpy1 = outline[ i ++ ] * scale + offsetY;
+							cpx2 = outline[ i ++ ] * scale + offsetX;
+							cpy2 = outline[ i ++ ] * scale + offsetY;
+
+							path.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );
+
+							laste = pts[ pts.length - 1 ];
+
+							if ( laste ) {
+
+								cpx0 = laste.x;
+								cpy0 = laste.y;
+
+							}
+
+							break;
+
+					}
+
+				}
+
+			}
+
+			return { offsetX: glyph.ha * scale, path: path };
+
+		}
+
+		//
+
+		if ( size === undefined ) size = 100;
+		if ( divisions === undefined ) divisions = 4;
+
+		var data = this.data;
+
+		var paths = createPaths( text );
+		var shapes = [];
+
+		for ( var p = 0, pl = paths.length; p < pl; p ++ ) {
+
+			Array.prototype.push.apply( shapes, paths[ p ].toShapes() );
+
+		}
+
+		return shapes;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function FontLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+}
+
+Object.assign( FontLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var scope = this;
+
+		var loader = new FileLoader( this.manager );
+		loader.setPath( this.path );
+		loader.load( url, function ( text ) {
+
+			var json;
+
+			try {
+
+				json = JSON.parse( text );
+
+			} catch ( e ) {
+
+				console.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );
+				json = JSON.parse( text.substring( 65, text.length - 2 ) );
+
+			}
+
+			var font = scope.parse( json );
+
+			if ( onLoad ) onLoad( font );
+
+		}, onProgress, onError );
+
+	},
+
+	parse: function ( json ) {
+
+		return new Font( json );
+
+	},
+
+	setPath: function ( value ) {
+
+		this.path = value;
+		return this;
+
+	}
+
+} );
+
+var context;
+
+var AudioContext = {
+
+	getContext: function () {
+
+		if ( context === undefined ) {
+
+			context = new ( window.AudioContext || window.webkitAudioContext )();
+
+		}
+
+		return context;
+
+	},
+
+	setContext: function ( value ) {
+
+		context = value;
+
+	}
+
+};
+
+/**
+ * @author Reece Aaron Lecrivain / http://reecenotes.com/
+ */
+
+function AudioLoader( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+
+}
+
+Object.assign( AudioLoader.prototype, {
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var loader = new FileLoader( this.manager );
+		loader.setResponseType( 'arraybuffer' );
+		loader.load( url, function ( buffer ) {
+
+			var context = AudioContext.getContext();
+
+			context.decodeAudioData( buffer, function ( audioBuffer ) {
+
+				onLoad( audioBuffer );
+
+			} );
+
+		}, onProgress, onError );
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function StereoCamera() {
+
+	this.type = 'StereoCamera';
+
+	this.aspect = 1;
+
+	this.eyeSep = 0.064;
+
+	this.cameraL = new PerspectiveCamera();
+	this.cameraL.layers.enable( 1 );
+	this.cameraL.matrixAutoUpdate = false;
+
+	this.cameraR = new PerspectiveCamera();
+	this.cameraR.layers.enable( 2 );
+	this.cameraR.matrixAutoUpdate = false;
+
+}
+
+Object.assign( StereoCamera.prototype, {
+
+	update: ( function () {
+
+		var instance, focus, fov, aspect, near, far, zoom, eyeSep;
+
+		var eyeRight = new Matrix4();
+		var eyeLeft = new Matrix4();
+
+		return function update( camera ) {
+
+			var needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||
+												aspect !== camera.aspect * this.aspect || near !== camera.near ||
+												far !== camera.far || zoom !== camera.zoom || eyeSep !== this.eyeSep;
+
+			if ( needsUpdate ) {
+
+				instance = this;
+				focus = camera.focus;
+				fov = camera.fov;
+				aspect = camera.aspect * this.aspect;
+				near = camera.near;
+				far = camera.far;
+				zoom = camera.zoom;
+
+				// Off-axis stereoscopic effect based on
+				// http://paulbourke.net/stereographics/stereorender/
+
+				var projectionMatrix = camera.projectionMatrix.clone();
+				eyeSep = this.eyeSep / 2;
+				var eyeSepOnProjection = eyeSep * near / focus;
+				var ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;
+				var xmin, xmax;
+
+				// translate xOffset
+
+				eyeLeft.elements[ 12 ] = - eyeSep;
+				eyeRight.elements[ 12 ] = eyeSep;
+
+				// for left eye
+
+				xmin = - ymax * aspect + eyeSepOnProjection;
+				xmax = ymax * aspect + eyeSepOnProjection;
+
+				projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
+				projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );
+
+				this.cameraL.projectionMatrix.copy( projectionMatrix );
+
+				// for right eye
+
+				xmin = - ymax * aspect - eyeSepOnProjection;
+				xmax = ymax * aspect - eyeSepOnProjection;
+
+				projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
+				projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );
+
+				this.cameraR.projectionMatrix.copy( projectionMatrix );
+
+			}
+
+			this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );
+			this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );
+
+		};
+
+	} )()
+
+} );
+
+/**
+ * Camera for rendering cube maps
+ *	- renders scene into axis-aligned cube
+ *
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function CubeCamera( near, far, cubeResolution ) {
+
+	Object3D.call( this );
+
+	this.type = 'CubeCamera';
+
+	var fov = 90, aspect = 1;
+
+	var cameraPX = new PerspectiveCamera( fov, aspect, near, far );
+	cameraPX.up.set( 0, - 1, 0 );
+	cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
+	this.add( cameraPX );
+
+	var cameraNX = new PerspectiveCamera( fov, aspect, near, far );
+	cameraNX.up.set( 0, - 1, 0 );
+	cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
+	this.add( cameraNX );
+
+	var cameraPY = new PerspectiveCamera( fov, aspect, near, far );
+	cameraPY.up.set( 0, 0, 1 );
+	cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
+	this.add( cameraPY );
+
+	var cameraNY = new PerspectiveCamera( fov, aspect, near, far );
+	cameraNY.up.set( 0, 0, - 1 );
+	cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
+	this.add( cameraNY );
+
+	var cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
+	cameraPZ.up.set( 0, - 1, 0 );
+	cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
+	this.add( cameraPZ );
+
+	var cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
+	cameraNZ.up.set( 0, - 1, 0 );
+	cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
+	this.add( cameraNZ );
+
+	var options = { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };
+
+	this.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );
+	this.renderTarget.texture.name = "CubeCamera";
+
+	this.update = function ( renderer, scene ) {
+
+		if ( this.parent === null ) this.updateMatrixWorld();
+
+		var renderTarget = this.renderTarget;
+		var generateMipmaps = renderTarget.texture.generateMipmaps;
+
+		renderTarget.texture.generateMipmaps = false;
+
+		renderTarget.activeCubeFace = 0;
+		renderer.render( scene, cameraPX, renderTarget );
+
+		renderTarget.activeCubeFace = 1;
+		renderer.render( scene, cameraNX, renderTarget );
+
+		renderTarget.activeCubeFace = 2;
+		renderer.render( scene, cameraPY, renderTarget );
+
+		renderTarget.activeCubeFace = 3;
+		renderer.render( scene, cameraNY, renderTarget );
+
+		renderTarget.activeCubeFace = 4;
+		renderer.render( scene, cameraPZ, renderTarget );
+
+		renderTarget.texture.generateMipmaps = generateMipmaps;
+
+		renderTarget.activeCubeFace = 5;
+		renderer.render( scene, cameraNZ, renderTarget );
+
+		renderer.setRenderTarget( null );
+
+	};
+
+	this.clear = function ( renderer, color, depth, stencil ) {
+
+		var renderTarget = this.renderTarget;
+
+		for ( var i = 0; i < 6; i ++ ) {
+
+			renderTarget.activeCubeFace = i;
+			renderer.setRenderTarget( renderTarget );
+
+			renderer.clear( color, depth, stencil );
+
+		}
+
+		renderer.setRenderTarget( null );
+
+	};
+
+}
+
+CubeCamera.prototype = Object.create( Object3D.prototype );
+CubeCamera.prototype.constructor = CubeCamera;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function AudioListener() {
+
+	Object3D.call( this );
+
+	this.type = 'AudioListener';
+
+	this.context = AudioContext.getContext();
+
+	this.gain = this.context.createGain();
+	this.gain.connect( this.context.destination );
+
+	this.filter = null;
+
+}
+
+AudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: AudioListener,
+
+	getInput: function () {
+
+		return this.gain;
+
+	},
+
+	removeFilter: function ( ) {
+
+		if ( this.filter !== null ) {
+
+			this.gain.disconnect( this.filter );
+			this.filter.disconnect( this.context.destination );
+			this.gain.connect( this.context.destination );
+			this.filter = null;
+
+		}
+
+	},
+
+	getFilter: function () {
+
+		return this.filter;
+
+	},
+
+	setFilter: function ( value ) {
+
+		if ( this.filter !== null ) {
+
+			this.gain.disconnect( this.filter );
+			this.filter.disconnect( this.context.destination );
+
+		} else {
+
+			this.gain.disconnect( this.context.destination );
+
+		}
+
+		this.filter = value;
+		this.gain.connect( this.filter );
+		this.filter.connect( this.context.destination );
+
+	},
+
+	getMasterVolume: function () {
+
+		return this.gain.gain.value;
+
+	},
+
+	setMasterVolume: function ( value ) {
+
+		this.gain.gain.value = value;
+
+	},
+
+	updateMatrixWorld: ( function () {
+
+		var position = new Vector3();
+		var quaternion = new Quaternion();
+		var scale = new Vector3();
+
+		var orientation = new Vector3();
+
+		return function updateMatrixWorld( force ) {
+
+			Object3D.prototype.updateMatrixWorld.call( this, force );
+
+			var listener = this.context.listener;
+			var up = this.up;
+
+			this.matrixWorld.decompose( position, quaternion, scale );
+
+			orientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );
+
+			if ( listener.positionX ) {
+
+				listener.positionX.setValueAtTime( position.x, this.context.currentTime );
+				listener.positionY.setValueAtTime( position.y, this.context.currentTime );
+				listener.positionZ.setValueAtTime( position.z, this.context.currentTime );
+				listener.forwardX.setValueAtTime( orientation.x, this.context.currentTime );
+				listener.forwardY.setValueAtTime( orientation.y, this.context.currentTime );
+				listener.forwardZ.setValueAtTime( orientation.z, this.context.currentTime );
+				listener.upX.setValueAtTime( up.x, this.context.currentTime );
+				listener.upY.setValueAtTime( up.y, this.context.currentTime );
+				listener.upZ.setValueAtTime( up.z, this.context.currentTime );
+
+			} else {
+
+				listener.setPosition( position.x, position.y, position.z );
+				listener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );
+
+			}
+
+		};
+
+	} )()
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author Reece Aaron Lecrivain / http://reecenotes.com/
+ */
+
+function Audio( listener ) {
+
+	Object3D.call( this );
+
+	this.type = 'Audio';
+
+	this.context = listener.context;
+
+	this.gain = this.context.createGain();
+	this.gain.connect( listener.getInput() );
+
+	this.autoplay = false;
+
+	this.buffer = null;
+	this.loop = false;
+	this.startTime = 0;
+	this.offset = 0;
+	this.playbackRate = 1;
+	this.isPlaying = false;
+	this.hasPlaybackControl = true;
+	this.sourceType = 'empty';
+
+	this.filters = [];
+
+}
+
+Audio.prototype = Object.assign( Object.create( Object3D.prototype ), {
+
+	constructor: Audio,
+
+	getOutput: function () {
+
+		return this.gain;
+
+	},
+
+	setNodeSource: function ( audioNode ) {
+
+		this.hasPlaybackControl = false;
+		this.sourceType = 'audioNode';
+		this.source = audioNode;
+		this.connect();
+
+		return this;
+
+	},
+
+	setBuffer: function ( audioBuffer ) {
+
+		this.buffer = audioBuffer;
+		this.sourceType = 'buffer';
+
+		if ( this.autoplay ) this.play();
+
+		return this;
+
+	},
+
+	play: function () {
+
+		if ( this.isPlaying === true ) {
+
+			console.warn( 'THREE.Audio: Audio is already playing.' );
+			return;
+
+		}
+
+		if ( this.hasPlaybackControl === false ) {
+
+			console.warn( 'THREE.Audio: this Audio has no playback control.' );
+			return;
+
+		}
+
+		var source = this.context.createBufferSource();
+
+		source.buffer = this.buffer;
+		source.loop = this.loop;
+		source.onended = this.onEnded.bind( this );
+		source.playbackRate.setValueAtTime( this.playbackRate, this.startTime );
+		this.startTime = this.context.currentTime;
+		source.start( this.startTime, this.offset );
+
+		this.isPlaying = true;
+
+		this.source = source;
+
+		return this.connect();
+
+	},
+
+	pause: function () {
+
+		if ( this.hasPlaybackControl === false ) {
+
+			console.warn( 'THREE.Audio: this Audio has no playback control.' );
+			return;
+
+		}
+
+		if ( this.isPlaying === true ) {
+
+			this.source.stop();
+			this.offset += ( this.context.currentTime - this.startTime ) * this.playbackRate;
+			this.isPlaying = false;
+
+		}
+
+		return this;
+
+	},
+
+	stop: function () {
+
+		if ( this.hasPlaybackControl === false ) {
+
+			console.warn( 'THREE.Audio: this Audio has no playback control.' );
+			return;
+
+		}
+
+		this.source.stop();
+		this.offset = 0;
+		this.isPlaying = false;
+
+		return this;
+
+	},
+
+	connect: function () {
+
+		if ( this.filters.length > 0 ) {
+
+			this.source.connect( this.filters[ 0 ] );
+
+			for ( var i = 1, l = this.filters.length; i < l; i ++ ) {
+
+				this.filters[ i - 1 ].connect( this.filters[ i ] );
+
+			}
+
+			this.filters[ this.filters.length - 1 ].connect( this.getOutput() );
+
+		} else {
+
+			this.source.connect( this.getOutput() );
+
+		}
+
+		return this;
+
+	},
+
+	disconnect: function () {
+
+		if ( this.filters.length > 0 ) {
+
+			this.source.disconnect( this.filters[ 0 ] );
+
+			for ( var i = 1, l = this.filters.length; i < l; i ++ ) {
+
+				this.filters[ i - 1 ].disconnect( this.filters[ i ] );
+
+			}
+
+			this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );
+
+		} else {
+
+			this.source.disconnect( this.getOutput() );
+
+		}
+
+		return this;
+
+	},
+
+	getFilters: function () {
+
+		return this.filters;
+
+	},
+
+	setFilters: function ( value ) {
+
+		if ( ! value ) value = [];
+
+		if ( this.isPlaying === true ) {
+
+			this.disconnect();
+			this.filters = value;
+			this.connect();
+
+		} else {
+
+			this.filters = value;
+
+		}
+
+		return this;
+
+	},
+
+	getFilter: function () {
+
+		return this.getFilters()[ 0 ];
+
+	},
+
+	setFilter: function ( filter ) {
+
+		return this.setFilters( filter ? [ filter ] : [] );
+
+	},
+
+	setPlaybackRate: function ( value ) {
+
+		if ( this.hasPlaybackControl === false ) {
+
+			console.warn( 'THREE.Audio: this Audio has no playback control.' );
+			return;
+
+		}
+
+		this.playbackRate = value;
+
+		if ( this.isPlaying === true ) {
+
+			this.source.playbackRate.setValueAtTime( this.playbackRate, this.context.currentTime );
+
+		}
+
+		return this;
+
+	},
+
+	getPlaybackRate: function () {
+
+		return this.playbackRate;
+
+	},
+
+	onEnded: function () {
+
+		this.isPlaying = false;
+
+	},
+
+	getLoop: function () {
+
+		if ( this.hasPlaybackControl === false ) {
+
+			console.warn( 'THREE.Audio: this Audio has no playback control.' );
+			return false;
+
+		}
+
+		return this.loop;
+
+	},
+
+	setLoop: function ( value ) {
+
+		if ( this.hasPlaybackControl === false ) {
+
+			console.warn( 'THREE.Audio: this Audio has no playback control.' );
+			return;
+
+		}
+
+		this.loop = value;
+
+		if ( this.isPlaying === true ) {
+
+			this.source.loop = this.loop;
+
+		}
+
+		return this;
+
+	},
+
+	getVolume: function () {
+
+		return this.gain.gain.value;
+
+	},
+
+	setVolume: function ( value ) {
+
+		this.gain.gain.value = value;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function PositionalAudio( listener ) {
+
+	Audio.call( this, listener );
+
+	this.panner = this.context.createPanner();
+	this.panner.connect( this.gain );
+
+}
+
+PositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {
+
+	constructor: PositionalAudio,
+
+	getOutput: function () {
+
+		return this.panner;
+
+	},
+
+	getRefDistance: function () {
+
+		return this.panner.refDistance;
+
+	},
+
+	setRefDistance: function ( value ) {
+
+		this.panner.refDistance = value;
+
+	},
+
+	getRolloffFactor: function () {
+
+		return this.panner.rolloffFactor;
+
+	},
+
+	setRolloffFactor: function ( value ) {
+
+		this.panner.rolloffFactor = value;
+
+	},
+
+	getDistanceModel: function () {
+
+		return this.panner.distanceModel;
+
+	},
+
+	setDistanceModel: function ( value ) {
+
+		this.panner.distanceModel = value;
+
+	},
+
+	getMaxDistance: function () {
+
+		return this.panner.maxDistance;
+
+	},
+
+	setMaxDistance: function ( value ) {
+
+		this.panner.maxDistance = value;
+
+	},
+
+	updateMatrixWorld: ( function () {
+
+		var position = new Vector3();
+
+		return function updateMatrixWorld( force ) {
+
+			Object3D.prototype.updateMatrixWorld.call( this, force );
+
+			position.setFromMatrixPosition( this.matrixWorld );
+
+			this.panner.setPosition( position.x, position.y, position.z );
+
+		};
+
+	} )()
+
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function AudioAnalyser( audio, fftSize ) {
+
+	this.analyser = audio.context.createAnalyser();
+	this.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;
+
+	this.data = new Uint8Array( this.analyser.frequencyBinCount );
+
+	audio.getOutput().connect( this.analyser );
+
+}
+
+Object.assign( AudioAnalyser.prototype, {
+
+	getFrequencyData: function () {
+
+		this.analyser.getByteFrequencyData( this.data );
+
+		return this.data;
+
+	},
+
+	getAverageFrequency: function () {
+
+		var value = 0, data = this.getFrequencyData();
+
+		for ( var i = 0; i < data.length; i ++ ) {
+
+			value += data[ i ];
+
+		}
+
+		return value / data.length;
+
+	}
+
+} );
+
+/**
+ *
+ * Buffered scene graph property that allows weighted accumulation.
+ *
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function PropertyMixer( binding, typeName, valueSize ) {
+
+	this.binding = binding;
+	this.valueSize = valueSize;
+
+	var bufferType = Float64Array,
+		mixFunction;
+
+	switch ( typeName ) {
+
+		case 'quaternion':
+			mixFunction = this._slerp;
+			break;
+
+		case 'string':
+		case 'bool':
+			bufferType = Array;
+			mixFunction = this._select;
+			break;
+
+		default:
+			mixFunction = this._lerp;
+
+	}
+
+	this.buffer = new bufferType( valueSize * 4 );
+	// layout: [ incoming | accu0 | accu1 | orig ]
+	//
+	// interpolators can use .buffer as their .result
+	// the data then goes to 'incoming'
+	//
+	// 'accu0' and 'accu1' are used frame-interleaved for
+	// the cumulative result and are compared to detect
+	// changes
+	//
+	// 'orig' stores the original state of the property
+
+	this._mixBufferRegion = mixFunction;
+
+	this.cumulativeWeight = 0;
+
+	this.useCount = 0;
+	this.referenceCount = 0;
+
+}
+
+Object.assign( PropertyMixer.prototype, {
+
+	// accumulate data in the 'incoming' region into 'accu<i>'
+	accumulate: function ( accuIndex, weight ) {
+
+		// note: happily accumulating nothing when weight = 0, the caller knows
+		// the weight and shouldn't have made the call in the first place
+
+		var buffer = this.buffer,
+			stride = this.valueSize,
+			offset = accuIndex * stride + stride,
+
+			currentWeight = this.cumulativeWeight;
+
+		if ( currentWeight === 0 ) {
+
+			// accuN := incoming * weight
+
+			for ( var i = 0; i !== stride; ++ i ) {
+
+				buffer[ offset + i ] = buffer[ i ];
+
+			}
+
+			currentWeight = weight;
+
+		} else {
+
+			// accuN := accuN + incoming * weight
+
+			currentWeight += weight;
+			var mix = weight / currentWeight;
+			this._mixBufferRegion( buffer, offset, 0, mix, stride );
+
+		}
+
+		this.cumulativeWeight = currentWeight;
+
+	},
+
+	// apply the state of 'accu<i>' to the binding when accus differ
+	apply: function ( accuIndex ) {
+
+		var stride = this.valueSize,
+			buffer = this.buffer,
+			offset = accuIndex * stride + stride,
+
+			weight = this.cumulativeWeight,
+
+			binding = this.binding;
+
+		this.cumulativeWeight = 0;
+
+		if ( weight < 1 ) {
+
+			// accuN := accuN + original * ( 1 - cumulativeWeight )
+
+			var originalValueOffset = stride * 3;
+
+			this._mixBufferRegion(
+				buffer, offset, originalValueOffset, 1 - weight, stride );
+
+		}
+
+		for ( var i = stride, e = stride + stride; i !== e; ++ i ) {
+
+			if ( buffer[ i ] !== buffer[ i + stride ] ) {
+
+				// value has changed -> update scene graph
+
+				binding.setValue( buffer, offset );
+				break;
+
+			}
+
+		}
+
+	},
+
+	// remember the state of the bound property and copy it to both accus
+	saveOriginalState: function () {
+
+		var binding = this.binding;
+
+		var buffer = this.buffer,
+			stride = this.valueSize,
+
+			originalValueOffset = stride * 3;
+
+		binding.getValue( buffer, originalValueOffset );
+
+		// accu[0..1] := orig -- initially detect changes against the original
+		for ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {
+
+			buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];
+
+		}
+
+		this.cumulativeWeight = 0;
+
+	},
+
+	// apply the state previously taken via 'saveOriginalState' to the binding
+	restoreOriginalState: function () {
+
+		var originalValueOffset = this.valueSize * 3;
+		this.binding.setValue( this.buffer, originalValueOffset );
+
+	},
+
+
+	// mix functions
+
+	_select: function ( buffer, dstOffset, srcOffset, t, stride ) {
+
+		if ( t >= 0.5 ) {
+
+			for ( var i = 0; i !== stride; ++ i ) {
+
+				buffer[ dstOffset + i ] = buffer[ srcOffset + i ];
+
+			}
+
+		}
+
+	},
+
+	_slerp: function ( buffer, dstOffset, srcOffset, t ) {
+
+		Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );
+
+	},
+
+	_lerp: function ( buffer, dstOffset, srcOffset, t, stride ) {
+
+		var s = 1 - t;
+
+		for ( var i = 0; i !== stride; ++ i ) {
+
+			var j = dstOffset + i;
+
+			buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;
+
+		}
+
+	}
+
+} );
+
+/**
+ *
+ * A reference to a real property in the scene graph.
+ *
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function Composite( targetGroup, path, optionalParsedPath ) {
+
+	var parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );
+
+	this._targetGroup = targetGroup;
+	this._bindings = targetGroup.subscribe_( path, parsedPath );
+
+}
+
+Object.assign( Composite.prototype, {
+
+	getValue: function ( array, offset ) {
+
+		this.bind(); // bind all binding
+
+		var firstValidIndex = this._targetGroup.nCachedObjects_,
+			binding = this._bindings[ firstValidIndex ];
+
+		// and only call .getValue on the first
+		if ( binding !== undefined ) binding.getValue( array, offset );
+
+	},
+
+	setValue: function ( array, offset ) {
+
+		var bindings = this._bindings;
+
+		for ( var i = this._targetGroup.nCachedObjects_,
+				  n = bindings.length; i !== n; ++ i ) {
+
+			bindings[ i ].setValue( array, offset );
+
+		}
+
+	},
+
+	bind: function () {
+
+		var bindings = this._bindings;
+
+		for ( var i = this._targetGroup.nCachedObjects_,
+				  n = bindings.length; i !== n; ++ i ) {
+
+			bindings[ i ].bind();
+
+		}
+
+	},
+
+	unbind: function () {
+
+		var bindings = this._bindings;
+
+		for ( var i = this._targetGroup.nCachedObjects_,
+				  n = bindings.length; i !== n; ++ i ) {
+
+			bindings[ i ].unbind();
+
+		}
+
+	}
+
+} );
+
+
+function PropertyBinding( rootNode, path, parsedPath ) {
+
+	this.path = path;
+	this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );
+
+	this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;
+
+	this.rootNode = rootNode;
+
+}
+
+Object.assign( PropertyBinding, {
+
+	Composite: Composite,
+
+	create: function ( root, path, parsedPath ) {
+
+		if ( ! ( root && root.isAnimationObjectGroup ) ) {
+
+			return new PropertyBinding( root, path, parsedPath );
+
+		} else {
+
+			return new PropertyBinding.Composite( root, path, parsedPath );
+
+		}
+
+	},
+
+	/**
+	 * Replaces spaces with underscores and removes unsupported characters from
+	 * node names, to ensure compatibility with parseTrackName().
+	 *
+	 * @param  {string} name Node name to be sanitized.
+	 * @return {string}
+	 */
+	sanitizeNodeName: function ( name ) {
+
+		return name.replace( /\s/g, '_' ).replace( /[^\w-]/g, '' );
+
+	},
+
+	parseTrackName: function () {
+
+		// Parent directories, delimited by '/' or ':'. Currently unused, but must
+		// be matched to parse the rest of the track name.
+		var directoryRe = /((?:[\w-]+[\/:])*)/;
+
+		// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
+		var nodeRe = /([\w-\.]+)?/;
+
+		// Object on target node, and accessor. Name may contain only word
+		// characters. Accessor may contain any character except closing bracket.
+		var objectRe = /(?:\.([\w-]+)(?:\[(.+)\])?)?/;
+
+		// Property and accessor. May contain only word characters. Accessor may
+		// contain any non-bracket characters.
+		var propertyRe = /\.([\w-]+)(?:\[(.+)\])?/;
+
+		var trackRe = new RegExp( ''
+			+ '^'
+			+ directoryRe.source
+			+ nodeRe.source
+			+ objectRe.source
+			+ propertyRe.source
+			+ '$'
+		);
+
+		var supportedObjectNames = [ 'material', 'materials', 'bones' ];
+
+		return function ( trackName ) {
+
+			var matches = trackRe.exec( trackName );
+
+			if ( ! matches ) {
+
+				throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );
+
+			}
+
+			var results = {
+				// directoryName: matches[ 1 ], // (tschw) currently unused
+				nodeName: matches[ 2 ],
+				objectName: matches[ 3 ],
+				objectIndex: matches[ 4 ],
+				propertyName: matches[ 5 ], // required
+				propertyIndex: matches[ 6 ]
+			};
+
+			var lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );
+
+			if ( lastDot !== undefined && lastDot !== - 1 ) {
+
+				var objectName = results.nodeName.substring( lastDot + 1 );
+
+				// Object names must be checked against a whitelist. Otherwise, there
+				// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
+				// 'bar' could be the objectName, or part of a nodeName (which can
+				// include '.' characters).
+				if ( supportedObjectNames.indexOf( objectName ) !== - 1 ) {
+
+					results.nodeName = results.nodeName.substring( 0, lastDot );
+					results.objectName = objectName;
+
+				}
+
+			}
+
+			if ( results.propertyName === null || results.propertyName.length === 0 ) {
+
+				throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );
+
+			}
+
+			return results;
+
+		};
+
+	}(),
+
+	findNode: function ( root, nodeName ) {
+
+		if ( ! nodeName || nodeName === "" || nodeName === "root" || nodeName === "." || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {
+
+			return root;
+
+		}
+
+		// search into skeleton bones.
+		if ( root.skeleton ) {
+
+			var searchSkeleton = function ( skeleton ) {
+
+				for ( var i = 0; i < skeleton.bones.length; i ++ ) {
+
+					var bone = skeleton.bones[ i ];
+
+					if ( bone.name === nodeName ) {
+
+						return bone;
+
+					}
+
+				}
+
+				return null;
+
+			};
+
+			var bone = searchSkeleton( root.skeleton );
+
+			if ( bone ) {
+
+				return bone;
+
+			}
+
+		}
+
+		// search into node subtree.
+		if ( root.children ) {
+
+			var searchNodeSubtree = function ( children ) {
+
+				for ( var i = 0; i < children.length; i ++ ) {
+
+					var childNode = children[ i ];
+
+					if ( childNode.name === nodeName || childNode.uuid === nodeName ) {
+
+						return childNode;
+
+					}
+
+					var result = searchNodeSubtree( childNode.children );
+
+					if ( result ) return result;
+
+				}
+
+				return null;
+
+			};
+
+			var subTreeNode = searchNodeSubtree( root.children );
+
+			if ( subTreeNode ) {
+
+				return subTreeNode;
+
+			}
+
+		}
+
+		return null;
+
+	}
+
+} );
+
+Object.assign( PropertyBinding.prototype, { // prototype, continued
+
+	// these are used to "bind" a nonexistent property
+	_getValue_unavailable: function () {},
+	_setValue_unavailable: function () {},
+
+	BindingType: {
+		Direct: 0,
+		EntireArray: 1,
+		ArrayElement: 2,
+		HasFromToArray: 3
+	},
+
+	Versioning: {
+		None: 0,
+		NeedsUpdate: 1,
+		MatrixWorldNeedsUpdate: 2
+	},
+
+	GetterByBindingType: [
+
+		function getValue_direct( buffer, offset ) {
+
+			buffer[ offset ] = this.node[ this.propertyName ];
+
+		},
+
+		function getValue_array( buffer, offset ) {
+
+			var source = this.resolvedProperty;
+
+			for ( var i = 0, n = source.length; i !== n; ++ i ) {
+
+				buffer[ offset ++ ] = source[ i ];
+
+			}
+
+		},
+
+		function getValue_arrayElement( buffer, offset ) {
+
+			buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];
+
+		},
+
+		function getValue_toArray( buffer, offset ) {
+
+			this.resolvedProperty.toArray( buffer, offset );
+
+		}
+
+	],
+
+	SetterByBindingTypeAndVersioning: [
+
+		[
+			// Direct
+
+			function setValue_direct( buffer, offset ) {
+
+				this.targetObject[ this.propertyName ] = buffer[ offset ];
+
+			},
+
+			function setValue_direct_setNeedsUpdate( buffer, offset ) {
+
+				this.targetObject[ this.propertyName ] = buffer[ offset ];
+				this.targetObject.needsUpdate = true;
+
+			},
+
+			function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {
+
+				this.targetObject[ this.propertyName ] = buffer[ offset ];
+				this.targetObject.matrixWorldNeedsUpdate = true;
+
+			}
+
+		], [
+
+			// EntireArray
+
+			function setValue_array( buffer, offset ) {
+
+				var dest = this.resolvedProperty;
+
+				for ( var i = 0, n = dest.length; i !== n; ++ i ) {
+
+					dest[ i ] = buffer[ offset ++ ];
+
+				}
+
+			},
+
+			function setValue_array_setNeedsUpdate( buffer, offset ) {
+
+				var dest = this.resolvedProperty;
+
+				for ( var i = 0, n = dest.length; i !== n; ++ i ) {
+
+					dest[ i ] = buffer[ offset ++ ];
+
+				}
+
+				this.targetObject.needsUpdate = true;
+
+			},
+
+			function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {
+
+				var dest = this.resolvedProperty;
+
+				for ( var i = 0, n = dest.length; i !== n; ++ i ) {
+
+					dest[ i ] = buffer[ offset ++ ];
+
+				}
+
+				this.targetObject.matrixWorldNeedsUpdate = true;
+
+			}
+
+		], [
+
+			// ArrayElement
+
+			function setValue_arrayElement( buffer, offset ) {
+
+				this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
+
+			},
+
+			function setValue_arrayElement_setNeedsUpdate( buffer, offset ) {
+
+				this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
+				this.targetObject.needsUpdate = true;
+
+			},
+
+			function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {
+
+				this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
+				this.targetObject.matrixWorldNeedsUpdate = true;
+
+			}
+
+		], [
+
+			// HasToFromArray
+
+			function setValue_fromArray( buffer, offset ) {
+
+				this.resolvedProperty.fromArray( buffer, offset );
+
+			},
+
+			function setValue_fromArray_setNeedsUpdate( buffer, offset ) {
+
+				this.resolvedProperty.fromArray( buffer, offset );
+				this.targetObject.needsUpdate = true;
+
+			},
+
+			function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {
+
+				this.resolvedProperty.fromArray( buffer, offset );
+				this.targetObject.matrixWorldNeedsUpdate = true;
+
+			}
+
+		]
+
+	],
+
+	getValue: function getValue_unbound( targetArray, offset ) {
+
+		this.bind();
+		this.getValue( targetArray, offset );
+
+		// Note: This class uses a State pattern on a per-method basis:
+		// 'bind' sets 'this.getValue' / 'setValue' and shadows the
+		// prototype version of these methods with one that represents
+		// the bound state. When the property is not found, the methods
+		// become no-ops.
+
+	},
+
+	setValue: function getValue_unbound( sourceArray, offset ) {
+
+		this.bind();
+		this.setValue( sourceArray, offset );
+
+	},
+
+	// create getter / setter pair for a property in the scene graph
+	bind: function () {
+
+		var targetObject = this.node,
+			parsedPath = this.parsedPath,
+
+			objectName = parsedPath.objectName,
+			propertyName = parsedPath.propertyName,
+			propertyIndex = parsedPath.propertyIndex;
+
+		if ( ! targetObject ) {
+
+			targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;
+
+			this.node = targetObject;
+
+		}
+
+		// set fail state so we can just 'return' on error
+		this.getValue = this._getValue_unavailable;
+		this.setValue = this._setValue_unavailable;
+
+		// ensure there is a value node
+		if ( ! targetObject ) {
+
+			console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
+			return;
+
+		}
+
+		if ( objectName ) {
+
+			var objectIndex = parsedPath.objectIndex;
+
+			// special cases were we need to reach deeper into the hierarchy to get the face materials....
+			switch ( objectName ) {
+
+				case 'materials':
+
+					if ( ! targetObject.material ) {
+
+						console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
+						return;
+
+					}
+
+					if ( ! targetObject.material.materials ) {
+
+						console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );
+						return;
+
+					}
+
+					targetObject = targetObject.material.materials;
+
+					break;
+
+				case 'bones':
+
+					if ( ! targetObject.skeleton ) {
+
+						console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );
+						return;
+
+					}
+
+					// potential future optimization: skip this if propertyIndex is already an integer
+					// and convert the integer string to a true integer.
+
+					targetObject = targetObject.skeleton.bones;
+
+					// support resolving morphTarget names into indices.
+					for ( var i = 0; i < targetObject.length; i ++ ) {
+
+						if ( targetObject[ i ].name === objectIndex ) {
+
+							objectIndex = i;
+							break;
+
+						}
+
+					}
+
+					break;
+
+				default:
+
+					if ( targetObject[ objectName ] === undefined ) {
+
+						console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );
+						return;
+
+					}
+
+					targetObject = targetObject[ objectName ];
+
+			}
+
+
+			if ( objectIndex !== undefined ) {
+
+				if ( targetObject[ objectIndex ] === undefined ) {
+
+					console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );
+					return;
+
+				}
+
+				targetObject = targetObject[ objectIndex ];
+
+			}
+
+		}
+
+		// resolve property
+		var nodeProperty = targetObject[ propertyName ];
+
+		if ( nodeProperty === undefined ) {
+
+			var nodeName = parsedPath.nodeName;
+
+			console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +
+				'.' + propertyName + ' but it wasn\'t found.', targetObject );
+			return;
+
+		}
+
+		// determine versioning scheme
+		var versioning = this.Versioning.None;
+
+		if ( targetObject.needsUpdate !== undefined ) { // material
+
+			versioning = this.Versioning.NeedsUpdate;
+			this.targetObject = targetObject;
+
+		} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform
+
+			versioning = this.Versioning.MatrixWorldNeedsUpdate;
+			this.targetObject = targetObject;
+
+		}
+
+		// determine how the property gets bound
+		var bindingType = this.BindingType.Direct;
+
+		if ( propertyIndex !== undefined ) {
+
+			// access a sub element of the property array (only primitives are supported right now)
+
+			if ( propertyName === "morphTargetInfluences" ) {
+
+				// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.
+
+				// support resolving morphTarget names into indices.
+				if ( ! targetObject.geometry ) {
+
+					console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );
+					return;
+
+				}
+
+				if ( targetObject.geometry.isBufferGeometry ) {
+
+					if ( ! targetObject.geometry.morphAttributes ) {
+
+						console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );
+						return;
+
+					}
+
+					for ( var i = 0; i < this.node.geometry.morphAttributes.position.length; i ++ ) {
+
+						if ( targetObject.geometry.morphAttributes.position[ i ].name === propertyIndex ) {
+
+							propertyIndex = i;
+							break;
+
+						}
+
+					}
+
+
+				} else {
+
+					if ( ! targetObject.geometry.morphTargets ) {
+
+						console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.', this );
+						return;
+
+					}
+
+					for ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {
+
+						if ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {
+
+							propertyIndex = i;
+							break;
+
+						}
+
+					}
+
+				}
+
+			}
+
+			bindingType = this.BindingType.ArrayElement;
+
+			this.resolvedProperty = nodeProperty;
+			this.propertyIndex = propertyIndex;
+
+		} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {
+
+			// must use copy for Object3D.Euler/Quaternion
+
+			bindingType = this.BindingType.HasFromToArray;
+
+			this.resolvedProperty = nodeProperty;
+
+		} else if ( Array.isArray( nodeProperty ) ) {
+
+			bindingType = this.BindingType.EntireArray;
+
+			this.resolvedProperty = nodeProperty;
+
+		} else {
+
+			this.propertyName = propertyName;
+
+		}
+
+		// select getter / setter
+		this.getValue = this.GetterByBindingType[ bindingType ];
+		this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];
+
+	},
+
+	unbind: function () {
+
+		this.node = null;
+
+		// back to the prototype version of getValue / setValue
+		// note: avoiding to mutate the shape of 'this' via 'delete'
+		this.getValue = this._getValue_unbound;
+		this.setValue = this._setValue_unbound;
+
+	}
+
+} );
+
+//!\ DECLARE ALIAS AFTER assign prototype !
+Object.assign( PropertyBinding.prototype, {
+
+	// initial state of these methods that calls 'bind'
+	_getValue_unbound: PropertyBinding.prototype.getValue,
+	_setValue_unbound: PropertyBinding.prototype.setValue,
+
+} );
+
+/**
+ *
+ * A group of objects that receives a shared animation state.
+ *
+ * Usage:
+ *
+ * 	-	Add objects you would otherwise pass as 'root' to the
+ * 		constructor or the .clipAction method of AnimationMixer.
+ *
+ * 	-	Instead pass this object as 'root'.
+ *
+ * 	-	You can also add and remove objects later when the mixer
+ * 		is running.
+ *
+ * Note:
+ *
+ *  	Objects of this class appear as one object to the mixer,
+ *  	so cache control of the individual objects must be done
+ *  	on the group.
+ *
+ * Limitation:
+ *
+ * 	- 	The animated properties must be compatible among the
+ * 		all objects in the group.
+ *
+ *  -	A single property can either be controlled through a
+ *  	target group or directly, but not both.
+ *
+ * @author tschw
+ */
+
+function AnimationObjectGroup() {
+
+	this.uuid = _Math.generateUUID();
+
+	// cached objects followed by the active ones
+	this._objects = Array.prototype.slice.call( arguments );
+
+	this.nCachedObjects_ = 0;			// threshold
+	// note: read by PropertyBinding.Composite
+
+	var indices = {};
+	this._indicesByUUID = indices;		// for bookkeeping
+
+	for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
+
+		indices[ arguments[ i ].uuid ] = i;
+
+	}
+
+	this._paths = [];					// inside: string
+	this._parsedPaths = [];				// inside: { we don't care, here }
+	this._bindings = []; 				// inside: Array< PropertyBinding >
+	this._bindingsIndicesByPath = {}; 	// inside: indices in these arrays
+
+	var scope = this;
+
+	this.stats = {
+
+		objects: {
+			get total() {
+
+				return scope._objects.length;
+
+			},
+			get inUse() {
+
+				return this.total - scope.nCachedObjects_;
+
+			}
+		},
+		get bindingsPerObject() {
+
+			return scope._bindings.length;
+
+		}
+
+	};
+
+}
+
+Object.assign( AnimationObjectGroup.prototype, {
+
+	isAnimationObjectGroup: true,
+
+	add: function () {
+
+		var objects = this._objects,
+			nObjects = objects.length,
+			nCachedObjects = this.nCachedObjects_,
+			indicesByUUID = this._indicesByUUID,
+			paths = this._paths,
+			parsedPaths = this._parsedPaths,
+			bindings = this._bindings,
+			nBindings = bindings.length;
+
+		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
+
+			var object = arguments[ i ],
+				uuid = object.uuid,
+				index = indicesByUUID[ uuid ],
+				knownObject = undefined;
+
+			if ( index === undefined ) {
+
+				// unknown object -> add it to the ACTIVE region
+
+				index = nObjects ++;
+				indicesByUUID[ uuid ] = index;
+				objects.push( object );
+
+				// accounting is done, now do the same for all bindings
+
+				for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+					bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );
+
+				}
+
+			} else if ( index < nCachedObjects ) {
+
+				knownObject = objects[ index ];
+
+				// move existing object to the ACTIVE region
+
+				var firstActiveIndex = -- nCachedObjects,
+					lastCachedObject = objects[ firstActiveIndex ];
+
+				indicesByUUID[ lastCachedObject.uuid ] = index;
+				objects[ index ] = lastCachedObject;
+
+				indicesByUUID[ uuid ] = firstActiveIndex;
+				objects[ firstActiveIndex ] = object;
+
+				// accounting is done, now do the same for all bindings
+
+				for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+					var bindingsForPath = bindings[ j ],
+						lastCached = bindingsForPath[ firstActiveIndex ],
+						binding = bindingsForPath[ index ];
+
+					bindingsForPath[ index ] = lastCached;
+
+					if ( binding === undefined ) {
+
+						// since we do not bother to create new bindings
+						// for objects that are cached, the binding may
+						// or may not exist
+
+						binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );
+
+					}
+
+					bindingsForPath[ firstActiveIndex ] = binding;
+
+				}
+
+			} else if ( objects[ index ] !== knownObject ) {
+
+				console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +
+						'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );
+
+			} // else the object is already where we want it to be
+
+		} // for arguments
+
+		this.nCachedObjects_ = nCachedObjects;
+
+	},
+
+	remove: function () {
+
+		var objects = this._objects,
+			nCachedObjects = this.nCachedObjects_,
+			indicesByUUID = this._indicesByUUID,
+			bindings = this._bindings,
+			nBindings = bindings.length;
+
+		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
+
+			var object = arguments[ i ],
+				uuid = object.uuid,
+				index = indicesByUUID[ uuid ];
+
+			if ( index !== undefined && index >= nCachedObjects ) {
+
+				// move existing object into the CACHED region
+
+				var lastCachedIndex = nCachedObjects ++,
+					firstActiveObject = objects[ lastCachedIndex ];
+
+				indicesByUUID[ firstActiveObject.uuid ] = index;
+				objects[ index ] = firstActiveObject;
+
+				indicesByUUID[ uuid ] = lastCachedIndex;
+				objects[ lastCachedIndex ] = object;
+
+				// accounting is done, now do the same for all bindings
+
+				for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+					var bindingsForPath = bindings[ j ],
+						firstActive = bindingsForPath[ lastCachedIndex ],
+						binding = bindingsForPath[ index ];
+
+					bindingsForPath[ index ] = firstActive;
+					bindingsForPath[ lastCachedIndex ] = binding;
+
+				}
+
+			}
+
+		} // for arguments
+
+		this.nCachedObjects_ = nCachedObjects;
+
+	},
+
+	// remove & forget
+	uncache: function () {
+
+		var objects = this._objects,
+			nObjects = objects.length,
+			nCachedObjects = this.nCachedObjects_,
+			indicesByUUID = this._indicesByUUID,
+			bindings = this._bindings,
+			nBindings = bindings.length;
+
+		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
+
+			var object = arguments[ i ],
+				uuid = object.uuid,
+				index = indicesByUUID[ uuid ];
+
+			if ( index !== undefined ) {
+
+				delete indicesByUUID[ uuid ];
+
+				if ( index < nCachedObjects ) {
+
+					// object is cached, shrink the CACHED region
+
+					var firstActiveIndex = -- nCachedObjects,
+						lastCachedObject = objects[ firstActiveIndex ],
+						lastIndex = -- nObjects,
+						lastObject = objects[ lastIndex ];
+
+					// last cached object takes this object's place
+					indicesByUUID[ lastCachedObject.uuid ] = index;
+					objects[ index ] = lastCachedObject;
+
+					// last object goes to the activated slot and pop
+					indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
+					objects[ firstActiveIndex ] = lastObject;
+					objects.pop();
+
+					// accounting is done, now do the same for all bindings
+
+					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+						var bindingsForPath = bindings[ j ],
+							lastCached = bindingsForPath[ firstActiveIndex ],
+							last = bindingsForPath[ lastIndex ];
+
+						bindingsForPath[ index ] = lastCached;
+						bindingsForPath[ firstActiveIndex ] = last;
+						bindingsForPath.pop();
+
+					}
+
+				} else {
+
+					// object is active, just swap with the last and pop
+
+					var lastIndex = -- nObjects,
+						lastObject = objects[ lastIndex ];
+
+					indicesByUUID[ lastObject.uuid ] = index;
+					objects[ index ] = lastObject;
+					objects.pop();
+
+					// accounting is done, now do the same for all bindings
+
+					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
+
+						var bindingsForPath = bindings[ j ];
+
+						bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
+						bindingsForPath.pop();
+
+					}
+
+				} // cached or active
+
+			} // if object is known
+
+		} // for arguments
+
+		this.nCachedObjects_ = nCachedObjects;
+
+	},
+
+	// Internal interface used by befriended PropertyBinding.Composite:
+
+	subscribe_: function ( path, parsedPath ) {
+
+		// returns an array of bindings for the given path that is changed
+		// according to the contained objects in the group
+
+		var indicesByPath = this._bindingsIndicesByPath,
+			index = indicesByPath[ path ],
+			bindings = this._bindings;
+
+		if ( index !== undefined ) return bindings[ index ];
+
+		var paths = this._paths,
+			parsedPaths = this._parsedPaths,
+			objects = this._objects,
+			nObjects = objects.length,
+			nCachedObjects = this.nCachedObjects_,
+			bindingsForPath = new Array( nObjects );
+
+		index = bindings.length;
+
+		indicesByPath[ path ] = index;
+
+		paths.push( path );
+		parsedPaths.push( parsedPath );
+		bindings.push( bindingsForPath );
+
+		for ( var i = nCachedObjects, n = objects.length; i !== n; ++ i ) {
+
+			var object = objects[ i ];
+			bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );
+
+		}
+
+		return bindingsForPath;
+
+	},
+
+	unsubscribe_: function ( path ) {
+
+		// tells the group to forget about a property path and no longer
+		// update the array previously obtained with 'subscribe_'
+
+		var indicesByPath = this._bindingsIndicesByPath,
+			index = indicesByPath[ path ];
+
+		if ( index !== undefined ) {
+
+			var paths = this._paths,
+				parsedPaths = this._parsedPaths,
+				bindings = this._bindings,
+				lastBindingsIndex = bindings.length - 1,
+				lastBindings = bindings[ lastBindingsIndex ],
+				lastBindingsPath = path[ lastBindingsIndex ];
+
+			indicesByPath[ lastBindingsPath ] = index;
+
+			bindings[ index ] = lastBindings;
+			bindings.pop();
+
+			parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
+			parsedPaths.pop();
+
+			paths[ index ] = paths[ lastBindingsIndex ];
+			paths.pop();
+
+		}
+
+	}
+
+} );
+
+/**
+ *
+ * Action provided by AnimationMixer for scheduling clip playback on specific
+ * objects.
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ *
+ */
+
+function AnimationAction( mixer, clip, localRoot ) {
+
+	this._mixer = mixer;
+	this._clip = clip;
+	this._localRoot = localRoot || null;
+
+	var tracks = clip.tracks,
+		nTracks = tracks.length,
+		interpolants = new Array( nTracks );
+
+	var interpolantSettings = {
+		endingStart: ZeroCurvatureEnding,
+		endingEnd: ZeroCurvatureEnding
+	};
+
+	for ( var i = 0; i !== nTracks; ++ i ) {
+
+		var interpolant = tracks[ i ].createInterpolant( null );
+		interpolants[ i ] = interpolant;
+		interpolant.settings = interpolantSettings;
+
+	}
+
+	this._interpolantSettings = interpolantSettings;
+
+	this._interpolants = interpolants;	// bound by the mixer
+
+	// inside: PropertyMixer (managed by the mixer)
+	this._propertyBindings = new Array( nTracks );
+
+	this._cacheIndex = null;			// for the memory manager
+	this._byClipCacheIndex = null;		// for the memory manager
+
+	this._timeScaleInterpolant = null;
+	this._weightInterpolant = null;
+
+	this.loop = LoopRepeat;
+	this._loopCount = - 1;
+
+	// global mixer time when the action is to be started
+	// it's set back to 'null' upon start of the action
+	this._startTime = null;
+
+	// scaled local time of the action
+	// gets clamped or wrapped to 0..clip.duration according to loop
+	this.time = 0;
+
+	this.timeScale = 1;
+	this._effectiveTimeScale = 1;
+
+	this.weight = 1;
+	this._effectiveWeight = 1;
+
+	this.repetitions = Infinity; 		// no. of repetitions when looping
+
+	this.paused = false;				// true -> zero effective time scale
+	this.enabled = true;				// false -> zero effective weight
+
+	this.clampWhenFinished 	= false;	// keep feeding the last frame?
+
+	this.zeroSlopeAtStart 	= true;		// for smooth interpolation w/o separate
+	this.zeroSlopeAtEnd		= true;		// clips for start, loop and end
+
+}
+
+Object.assign( AnimationAction.prototype, {
+
+	// State & Scheduling
+
+	play: function () {
+
+		this._mixer._activateAction( this );
+
+		return this;
+
+	},
+
+	stop: function () {
+
+		this._mixer._deactivateAction( this );
+
+		return this.reset();
+
+	},
+
+	reset: function () {
+
+		this.paused = false;
+		this.enabled = true;
+
+		this.time = 0;			// restart clip
+		this._loopCount = - 1;	// forget previous loops
+		this._startTime = null;	// forget scheduling
+
+		return this.stopFading().stopWarping();
+
+	},
+
+	isRunning: function () {
+
+		return this.enabled && ! this.paused && this.timeScale !== 0 &&
+				this._startTime === null && this._mixer._isActiveAction( this );
+
+	},
+
+	// return true when play has been called
+	isScheduled: function () {
+
+		return this._mixer._isActiveAction( this );
+
+	},
+
+	startAt: function ( time ) {
+
+		this._startTime = time;
+
+		return this;
+
+	},
+
+	setLoop: function ( mode, repetitions ) {
+
+		this.loop = mode;
+		this.repetitions = repetitions;
+
+		return this;
+
+	},
+
+	// Weight
+
+	// set the weight stopping any scheduled fading
+	// although .enabled = false yields an effective weight of zero, this
+	// method does *not* change .enabled, because it would be confusing
+	setEffectiveWeight: function ( weight ) {
+
+		this.weight = weight;
+
+		// note: same logic as when updated at runtime
+		this._effectiveWeight = this.enabled ? weight : 0;
+
+		return this.stopFading();
+
+	},
+
+	// return the weight considering fading and .enabled
+	getEffectiveWeight: function () {
+
+		return this._effectiveWeight;
+
+	},
+
+	fadeIn: function ( duration ) {
+
+		return this._scheduleFading( duration, 0, 1 );
+
+	},
+
+	fadeOut: function ( duration ) {
+
+		return this._scheduleFading( duration, 1, 0 );
+
+	},
+
+	crossFadeFrom: function ( fadeOutAction, duration, warp ) {
+
+		fadeOutAction.fadeOut( duration );
+		this.fadeIn( duration );
+
+		if ( warp ) {
+
+			var fadeInDuration = this._clip.duration,
+				fadeOutDuration = fadeOutAction._clip.duration,
+
+				startEndRatio = fadeOutDuration / fadeInDuration,
+				endStartRatio = fadeInDuration / fadeOutDuration;
+
+			fadeOutAction.warp( 1.0, startEndRatio, duration );
+			this.warp( endStartRatio, 1.0, duration );
+
+		}
+
+		return this;
+
+	},
+
+	crossFadeTo: function ( fadeInAction, duration, warp ) {
+
+		return fadeInAction.crossFadeFrom( this, duration, warp );
+
+	},
+
+	stopFading: function () {
+
+		var weightInterpolant = this._weightInterpolant;
+
+		if ( weightInterpolant !== null ) {
+
+			this._weightInterpolant = null;
+			this._mixer._takeBackControlInterpolant( weightInterpolant );
+
+		}
+
+		return this;
+
+	},
+
+	// Time Scale Control
+
+	// set the time scale stopping any scheduled warping
+	// although .paused = true yields an effective time scale of zero, this
+	// method does *not* change .paused, because it would be confusing
+	setEffectiveTimeScale: function ( timeScale ) {
+
+		this.timeScale = timeScale;
+		this._effectiveTimeScale = this.paused ? 0 : timeScale;
+
+		return this.stopWarping();
+
+	},
+
+	// return the time scale considering warping and .paused
+	getEffectiveTimeScale: function () {
+
+		return this._effectiveTimeScale;
+
+	},
+
+	setDuration: function ( duration ) {
+
+		this.timeScale = this._clip.duration / duration;
+
+		return this.stopWarping();
+
+	},
+
+	syncWith: function ( action ) {
+
+		this.time = action.time;
+		this.timeScale = action.timeScale;
+
+		return this.stopWarping();
+
+	},
+
+	halt: function ( duration ) {
+
+		return this.warp( this._effectiveTimeScale, 0, duration );
+
+	},
+
+	warp: function ( startTimeScale, endTimeScale, duration ) {
+
+		var mixer = this._mixer, now = mixer.time,
+			interpolant = this._timeScaleInterpolant,
+
+			timeScale = this.timeScale;
+
+		if ( interpolant === null ) {
+
+			interpolant = mixer._lendControlInterpolant();
+			this._timeScaleInterpolant = interpolant;
+
+		}
+
+		var times = interpolant.parameterPositions,
+			values = interpolant.sampleValues;
+
+		times[ 0 ] = now;
+		times[ 1 ] = now + duration;
+
+		values[ 0 ] = startTimeScale / timeScale;
+		values[ 1 ] = endTimeScale / timeScale;
+
+		return this;
+
+	},
+
+	stopWarping: function () {
+
+		var timeScaleInterpolant = this._timeScaleInterpolant;
+
+		if ( timeScaleInterpolant !== null ) {
+
+			this._timeScaleInterpolant = null;
+			this._mixer._takeBackControlInterpolant( timeScaleInterpolant );
+
+		}
+
+		return this;
+
+	},
+
+	// Object Accessors
+
+	getMixer: function () {
+
+		return this._mixer;
+
+	},
+
+	getClip: function () {
+
+		return this._clip;
+
+	},
+
+	getRoot: function () {
+
+		return this._localRoot || this._mixer._root;
+
+	},
+
+	// Interna
+
+	_update: function ( time, deltaTime, timeDirection, accuIndex ) {
+
+		// called by the mixer
+
+		if ( ! this.enabled ) {
+
+			// call ._updateWeight() to update ._effectiveWeight
+
+			this._updateWeight( time );
+			return;
+
+		}
+
+		var startTime = this._startTime;
+
+		if ( startTime !== null ) {
+
+			// check for scheduled start of action
+
+			var timeRunning = ( time - startTime ) * timeDirection;
+			if ( timeRunning < 0 || timeDirection === 0 ) {
+
+				return; // yet to come / don't decide when delta = 0
+
+			}
+
+			// start
+
+			this._startTime = null; // unschedule
+			deltaTime = timeDirection * timeRunning;
+
+		}
+
+		// apply time scale and advance time
+
+		deltaTime *= this._updateTimeScale( time );
+		var clipTime = this._updateTime( deltaTime );
+
+		// note: _updateTime may disable the action resulting in
+		// an effective weight of 0
+
+		var weight = this._updateWeight( time );
+
+		if ( weight > 0 ) {
+
+			var interpolants = this._interpolants;
+			var propertyMixers = this._propertyBindings;
+
+			for ( var j = 0, m = interpolants.length; j !== m; ++ j ) {
+
+				interpolants[ j ].evaluate( clipTime );
+				propertyMixers[ j ].accumulate( accuIndex, weight );
+
+			}
+
+		}
+
+	},
+
+	_updateWeight: function ( time ) {
+
+		var weight = 0;
+
+		if ( this.enabled ) {
+
+			weight = this.weight;
+			var interpolant = this._weightInterpolant;
+
+			if ( interpolant !== null ) {
+
+				var interpolantValue = interpolant.evaluate( time )[ 0 ];
+
+				weight *= interpolantValue;
+
+				if ( time > interpolant.parameterPositions[ 1 ] ) {
+
+					this.stopFading();
+
+					if ( interpolantValue === 0 ) {
+
+						// faded out, disable
+						this.enabled = false;
+
+					}
+
+				}
+
+			}
+
+		}
+
+		this._effectiveWeight = weight;
+		return weight;
+
+	},
+
+	_updateTimeScale: function ( time ) {
+
+		var timeScale = 0;
+
+		if ( ! this.paused ) {
+
+			timeScale = this.timeScale;
+
+			var interpolant = this._timeScaleInterpolant;
+
+			if ( interpolant !== null ) {
+
+				var interpolantValue = interpolant.evaluate( time )[ 0 ];
+
+				timeScale *= interpolantValue;
+
+				if ( time > interpolant.parameterPositions[ 1 ] ) {
+
+					this.stopWarping();
+
+					if ( timeScale === 0 ) {
+
+						// motion has halted, pause
+						this.paused = true;
+
+					} else {
+
+						// warp done - apply final time scale
+						this.timeScale = timeScale;
+
+					}
+
+				}
+
+			}
+
+		}
+
+		this._effectiveTimeScale = timeScale;
+		return timeScale;
+
+	},
+
+	_updateTime: function ( deltaTime ) {
+
+		var time = this.time + deltaTime;
+
+		if ( deltaTime === 0 ) return time;
+
+		var duration = this._clip.duration,
+
+			loop = this.loop,
+			loopCount = this._loopCount;
+
+		if ( loop === LoopOnce ) {
+
+			if ( loopCount === - 1 ) {
+
+				// just started
+
+				this._loopCount = 0;
+				this._setEndings( true, true, false );
+
+			}
+
+			handle_stop: {
+
+				if ( time >= duration ) {
+
+					time = duration;
+
+				} else if ( time < 0 ) {
+
+					time = 0;
+
+				} else break handle_stop;
+
+				if ( this.clampWhenFinished ) this.paused = true;
+				else this.enabled = false;
+
+				this._mixer.dispatchEvent( {
+					type: 'finished', action: this,
+					direction: deltaTime < 0 ? - 1 : 1
+				} );
+
+			}
+
+		} else { // repetitive Repeat or PingPong
+
+			var pingPong = ( loop === LoopPingPong );
+
+			if ( loopCount === - 1 ) {
+
+				// just started
+
+				if ( deltaTime >= 0 ) {
+
+					loopCount = 0;
+
+					this._setEndings( true, this.repetitions === 0, pingPong );
+
+				} else {
+
+					// when looping in reverse direction, the initial
+					// transition through zero counts as a repetition,
+					// so leave loopCount at -1
+
+					this._setEndings( this.repetitions === 0, true, pingPong );
+
+				}
+
+			}
+
+			if ( time >= duration || time < 0 ) {
+
+				// wrap around
+
+				var loopDelta = Math.floor( time / duration ); // signed
+				time -= duration * loopDelta;
+
+				loopCount += Math.abs( loopDelta );
+
+				var pending = this.repetitions - loopCount;
+
+				if ( pending < 0 ) {
+
+					// have to stop (switch state, clamp time, fire event)
+
+					if ( this.clampWhenFinished ) this.paused = true;
+					else this.enabled = false;
+
+					time = deltaTime > 0 ? duration : 0;
+
+					this._mixer.dispatchEvent( {
+						type: 'finished', action: this,
+						direction: deltaTime > 0 ? 1 : - 1
+					} );
+
+				} else {
+
+					// keep running
+
+					if ( pending === 0 ) {
+
+						// entering the last round
+
+						var atStart = deltaTime < 0;
+						this._setEndings( atStart, ! atStart, pingPong );
+
+					} else {
+
+						this._setEndings( false, false, pingPong );
+
+					}
+
+					this._loopCount = loopCount;
+
+					this._mixer.dispatchEvent( {
+						type: 'loop', action: this, loopDelta: loopDelta
+					} );
+
+				}
+
+			}
+
+			if ( pingPong && ( loopCount & 1 ) === 1 ) {
+
+				// invert time for the "pong round"
+
+				this.time = time;
+				return duration - time;
+
+			}
+
+		}
+
+		this.time = time;
+		return time;
+
+	},
+
+	_setEndings: function ( atStart, atEnd, pingPong ) {
+
+		var settings = this._interpolantSettings;
+
+		if ( pingPong ) {
+
+			settings.endingStart 	= ZeroSlopeEnding;
+			settings.endingEnd		= ZeroSlopeEnding;
+
+		} else {
+
+			// assuming for LoopOnce atStart == atEnd == true
+
+			if ( atStart ) {
+
+				settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;
+
+			} else {
+
+				settings.endingStart = WrapAroundEnding;
+
+			}
+
+			if ( atEnd ) {
+
+				settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;
+
+			} else {
+
+				settings.endingEnd 	 = WrapAroundEnding;
+
+			}
+
+		}
+
+	},
+
+	_scheduleFading: function ( duration, weightNow, weightThen ) {
+
+		var mixer = this._mixer, now = mixer.time,
+			interpolant = this._weightInterpolant;
+
+		if ( interpolant === null ) {
+
+			interpolant = mixer._lendControlInterpolant();
+			this._weightInterpolant = interpolant;
+
+		}
+
+		var times = interpolant.parameterPositions,
+			values = interpolant.sampleValues;
+
+		times[ 0 ] = now; 				values[ 0 ] = weightNow;
+		times[ 1 ] = now + duration;	values[ 1 ] = weightThen;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ *
+ * Player for AnimationClips.
+ *
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ * @author tschw
+ */
+
+function AnimationMixer( root ) {
+
+	this._root = root;
+	this._initMemoryManager();
+	this._accuIndex = 0;
+
+	this.time = 0;
+
+	this.timeScale = 1.0;
+
+}
+
+Object.assign( AnimationMixer.prototype, EventDispatcher.prototype, {
+
+	_bindAction: function ( action, prototypeAction ) {
+
+		var root = action._localRoot || this._root,
+			tracks = action._clip.tracks,
+			nTracks = tracks.length,
+			bindings = action._propertyBindings,
+			interpolants = action._interpolants,
+			rootUuid = root.uuid,
+			bindingsByRoot = this._bindingsByRootAndName,
+			bindingsByName = bindingsByRoot[ rootUuid ];
+
+		if ( bindingsByName === undefined ) {
+
+			bindingsByName = {};
+			bindingsByRoot[ rootUuid ] = bindingsByName;
+
+		}
+
+		for ( var i = 0; i !== nTracks; ++ i ) {
+
+			var track = tracks[ i ],
+				trackName = track.name,
+				binding = bindingsByName[ trackName ];
+
+			if ( binding !== undefined ) {
+
+				bindings[ i ] = binding;
+
+			} else {
+
+				binding = bindings[ i ];
+
+				if ( binding !== undefined ) {
+
+					// existing binding, make sure the cache knows
+
+					if ( binding._cacheIndex === null ) {
+
+						++ binding.referenceCount;
+						this._addInactiveBinding( binding, rootUuid, trackName );
+
+					}
+
+					continue;
+
+				}
+
+				var path = prototypeAction && prototypeAction.
+					_propertyBindings[ i ].binding.parsedPath;
+
+				binding = new PropertyMixer(
+					PropertyBinding.create( root, trackName, path ),
+					track.ValueTypeName, track.getValueSize() );
+
+				++ binding.referenceCount;
+				this._addInactiveBinding( binding, rootUuid, trackName );
+
+				bindings[ i ] = binding;
+
+			}
+
+			interpolants[ i ].resultBuffer = binding.buffer;
+
+		}
+
+	},
+
+	_activateAction: function ( action ) {
+
+		if ( ! this._isActiveAction( action ) ) {
+
+			if ( action._cacheIndex === null ) {
+
+				// this action has been forgotten by the cache, but the user
+				// appears to be still using it -> rebind
+
+				var rootUuid = ( action._localRoot || this._root ).uuid,
+					clipUuid = action._clip.uuid,
+					actionsForClip = this._actionsByClip[ clipUuid ];
+
+				this._bindAction( action,
+					actionsForClip && actionsForClip.knownActions[ 0 ] );
+
+				this._addInactiveAction( action, clipUuid, rootUuid );
+
+			}
+
+			var bindings = action._propertyBindings;
+
+			// increment reference counts / sort out state
+			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
+
+				var binding = bindings[ i ];
+
+				if ( binding.useCount ++ === 0 ) {
+
+					this._lendBinding( binding );
+					binding.saveOriginalState();
+
+				}
+
+			}
+
+			this._lendAction( action );
+
+		}
+
+	},
+
+	_deactivateAction: function ( action ) {
+
+		if ( this._isActiveAction( action ) ) {
+
+			var bindings = action._propertyBindings;
+
+			// decrement reference counts / sort out state
+			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
+
+				var binding = bindings[ i ];
+
+				if ( -- binding.useCount === 0 ) {
+
+					binding.restoreOriginalState();
+					this._takeBackBinding( binding );
+
+				}
+
+			}
+
+			this._takeBackAction( action );
+
+		}
+
+	},
+
+	// Memory manager
+
+	_initMemoryManager: function () {
+
+		this._actions = []; // 'nActiveActions' followed by inactive ones
+		this._nActiveActions = 0;
+
+		this._actionsByClip = {};
+		// inside:
+		// {
+		// 		knownActions: Array< AnimationAction >	- used as prototypes
+		// 		actionByRoot: AnimationAction			- lookup
+		// }
+
+
+		this._bindings = []; // 'nActiveBindings' followed by inactive ones
+		this._nActiveBindings = 0;
+
+		this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >
+
+
+		this._controlInterpolants = []; // same game as above
+		this._nActiveControlInterpolants = 0;
+
+		var scope = this;
+
+		this.stats = {
+
+			actions: {
+				get total() {
+
+					return scope._actions.length;
+
+				},
+				get inUse() {
+
+					return scope._nActiveActions;
+
+				}
+			},
+			bindings: {
+				get total() {
+
+					return scope._bindings.length;
+
+				},
+				get inUse() {
+
+					return scope._nActiveBindings;
+
+				}
+			},
+			controlInterpolants: {
+				get total() {
+
+					return scope._controlInterpolants.length;
+
+				},
+				get inUse() {
+
+					return scope._nActiveControlInterpolants;
+
+				}
+			}
+
+		};
+
+	},
+
+	// Memory management for AnimationAction objects
+
+	_isActiveAction: function ( action ) {
+
+		var index = action._cacheIndex;
+		return index !== null && index < this._nActiveActions;
+
+	},
+
+	_addInactiveAction: function ( action, clipUuid, rootUuid ) {
+
+		var actions = this._actions,
+			actionsByClip = this._actionsByClip,
+			actionsForClip = actionsByClip[ clipUuid ];
+
+		if ( actionsForClip === undefined ) {
+
+			actionsForClip = {
+
+				knownActions: [ action ],
+				actionByRoot: {}
+
+			};
+
+			action._byClipCacheIndex = 0;
+
+			actionsByClip[ clipUuid ] = actionsForClip;
+
+		} else {
+
+			var knownActions = actionsForClip.knownActions;
+
+			action._byClipCacheIndex = knownActions.length;
+			knownActions.push( action );
+
+		}
+
+		action._cacheIndex = actions.length;
+		actions.push( action );
+
+		actionsForClip.actionByRoot[ rootUuid ] = action;
+
+	},
+
+	_removeInactiveAction: function ( action ) {
+
+		var actions = this._actions,
+			lastInactiveAction = actions[ actions.length - 1 ],
+			cacheIndex = action._cacheIndex;
+
+		lastInactiveAction._cacheIndex = cacheIndex;
+		actions[ cacheIndex ] = lastInactiveAction;
+		actions.pop();
+
+		action._cacheIndex = null;
+
+
+		var clipUuid = action._clip.uuid,
+			actionsByClip = this._actionsByClip,
+			actionsForClip = actionsByClip[ clipUuid ],
+			knownActionsForClip = actionsForClip.knownActions,
+
+			lastKnownAction =
+				knownActionsForClip[ knownActionsForClip.length - 1 ],
+
+			byClipCacheIndex = action._byClipCacheIndex;
+
+		lastKnownAction._byClipCacheIndex = byClipCacheIndex;
+		knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
+		knownActionsForClip.pop();
+
+		action._byClipCacheIndex = null;
+
+
+		var actionByRoot = actionsForClip.actionByRoot,
+			rootUuid = ( action._localRoot || this._root ).uuid;
+
+		delete actionByRoot[ rootUuid ];
+
+		if ( knownActionsForClip.length === 0 ) {
+
+			delete actionsByClip[ clipUuid ];
+
+		}
+
+		this._removeInactiveBindingsForAction( action );
+
+	},
+
+	_removeInactiveBindingsForAction: function ( action ) {
+
+		var bindings = action._propertyBindings;
+		for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
+
+			var binding = bindings[ i ];
+
+			if ( -- binding.referenceCount === 0 ) {
+
+				this._removeInactiveBinding( binding );
+
+			}
+
+		}
+
+	},
+
+	_lendAction: function ( action ) {
+
+		// [ active actions |  inactive actions  ]
+		// [  active actions >| inactive actions ]
+		//                 s        a
+		//                  <-swap->
+		//                 a        s
+
+		var actions = this._actions,
+			prevIndex = action._cacheIndex,
+
+			lastActiveIndex = this._nActiveActions ++,
+
+			firstInactiveAction = actions[ lastActiveIndex ];
+
+		action._cacheIndex = lastActiveIndex;
+		actions[ lastActiveIndex ] = action;
+
+		firstInactiveAction._cacheIndex = prevIndex;
+		actions[ prevIndex ] = firstInactiveAction;
+
+	},
+
+	_takeBackAction: function ( action ) {
+
+		// [  active actions  | inactive actions ]
+		// [ active actions |< inactive actions  ]
+		//        a        s
+		//         <-swap->
+		//        s        a
+
+		var actions = this._actions,
+			prevIndex = action._cacheIndex,
+
+			firstInactiveIndex = -- this._nActiveActions,
+
+			lastActiveAction = actions[ firstInactiveIndex ];
+
+		action._cacheIndex = firstInactiveIndex;
+		actions[ firstInactiveIndex ] = action;
+
+		lastActiveAction._cacheIndex = prevIndex;
+		actions[ prevIndex ] = lastActiveAction;
+
+	},
+
+	// Memory management for PropertyMixer objects
+
+	_addInactiveBinding: function ( binding, rootUuid, trackName ) {
+
+		var bindingsByRoot = this._bindingsByRootAndName,
+			bindingByName = bindingsByRoot[ rootUuid ],
+
+			bindings = this._bindings;
+
+		if ( bindingByName === undefined ) {
+
+			bindingByName = {};
+			bindingsByRoot[ rootUuid ] = bindingByName;
+
+		}
+
+		bindingByName[ trackName ] = binding;
+
+		binding._cacheIndex = bindings.length;
+		bindings.push( binding );
+
+	},
+
+	_removeInactiveBinding: function ( binding ) {
+
+		var bindings = this._bindings,
+			propBinding = binding.binding,
+			rootUuid = propBinding.rootNode.uuid,
+			trackName = propBinding.path,
+			bindingsByRoot = this._bindingsByRootAndName,
+			bindingByName = bindingsByRoot[ rootUuid ],
+
+			lastInactiveBinding = bindings[ bindings.length - 1 ],
+			cacheIndex = binding._cacheIndex;
+
+		lastInactiveBinding._cacheIndex = cacheIndex;
+		bindings[ cacheIndex ] = lastInactiveBinding;
+		bindings.pop();
+
+		delete bindingByName[ trackName ];
+
+		remove_empty_map: {
+
+			for ( var _ in bindingByName ) break remove_empty_map; // eslint-disable-line no-unused-vars
+
+			delete bindingsByRoot[ rootUuid ];
+
+		}
+
+	},
+
+	_lendBinding: function ( binding ) {
+
+		var bindings = this._bindings,
+			prevIndex = binding._cacheIndex,
+
+			lastActiveIndex = this._nActiveBindings ++,
+
+			firstInactiveBinding = bindings[ lastActiveIndex ];
+
+		binding._cacheIndex = lastActiveIndex;
+		bindings[ lastActiveIndex ] = binding;
+
+		firstInactiveBinding._cacheIndex = prevIndex;
+		bindings[ prevIndex ] = firstInactiveBinding;
+
+	},
+
+	_takeBackBinding: function ( binding ) {
+
+		var bindings = this._bindings,
+			prevIndex = binding._cacheIndex,
+
+			firstInactiveIndex = -- this._nActiveBindings,
+
+			lastActiveBinding = bindings[ firstInactiveIndex ];
+
+		binding._cacheIndex = firstInactiveIndex;
+		bindings[ firstInactiveIndex ] = binding;
+
+		lastActiveBinding._cacheIndex = prevIndex;
+		bindings[ prevIndex ] = lastActiveBinding;
+
+	},
+
+
+	// Memory management of Interpolants for weight and time scale
+
+	_lendControlInterpolant: function () {
+
+		var interpolants = this._controlInterpolants,
+			lastActiveIndex = this._nActiveControlInterpolants ++,
+			interpolant = interpolants[ lastActiveIndex ];
+
+		if ( interpolant === undefined ) {
+
+			interpolant = new LinearInterpolant(
+				new Float32Array( 2 ), new Float32Array( 2 ),
+				1, this._controlInterpolantsResultBuffer );
+
+			interpolant.__cacheIndex = lastActiveIndex;
+			interpolants[ lastActiveIndex ] = interpolant;
+
+		}
+
+		return interpolant;
+
+	},
+
+	_takeBackControlInterpolant: function ( interpolant ) {
+
+		var interpolants = this._controlInterpolants,
+			prevIndex = interpolant.__cacheIndex,
+
+			firstInactiveIndex = -- this._nActiveControlInterpolants,
+
+			lastActiveInterpolant = interpolants[ firstInactiveIndex ];
+
+		interpolant.__cacheIndex = firstInactiveIndex;
+		interpolants[ firstInactiveIndex ] = interpolant;
+
+		lastActiveInterpolant.__cacheIndex = prevIndex;
+		interpolants[ prevIndex ] = lastActiveInterpolant;
+
+	},
+
+	_controlInterpolantsResultBuffer: new Float32Array( 1 ),
+
+	// return an action for a clip optionally using a custom root target
+	// object (this method allocates a lot of dynamic memory in case a
+	// previously unknown clip/root combination is specified)
+	clipAction: function ( clip, optionalRoot ) {
+
+		var root = optionalRoot || this._root,
+			rootUuid = root.uuid,
+
+			clipObject = typeof clip === 'string' ?
+				AnimationClip.findByName( root, clip ) : clip,
+
+			clipUuid = clipObject !== null ? clipObject.uuid : clip,
+
+			actionsForClip = this._actionsByClip[ clipUuid ],
+			prototypeAction = null;
+
+		if ( actionsForClip !== undefined ) {
+
+			var existingAction =
+					actionsForClip.actionByRoot[ rootUuid ];
+
+			if ( existingAction !== undefined ) {
+
+				return existingAction;
+
+			}
+
+			// we know the clip, so we don't have to parse all
+			// the bindings again but can just copy
+			prototypeAction = actionsForClip.knownActions[ 0 ];
+
+			// also, take the clip from the prototype action
+			if ( clipObject === null )
+				clipObject = prototypeAction._clip;
+
+		}
+
+		// clip must be known when specified via string
+		if ( clipObject === null ) return null;
+
+		// allocate all resources required to run it
+		var newAction = new AnimationAction( this, clipObject, optionalRoot );
+
+		this._bindAction( newAction, prototypeAction );
+
+		// and make the action known to the memory manager
+		this._addInactiveAction( newAction, clipUuid, rootUuid );
+
+		return newAction;
+
+	},
+
+	// get an existing action
+	existingAction: function ( clip, optionalRoot ) {
+
+		var root = optionalRoot || this._root,
+			rootUuid = root.uuid,
+
+			clipObject = typeof clip === 'string' ?
+				AnimationClip.findByName( root, clip ) : clip,
+
+			clipUuid = clipObject ? clipObject.uuid : clip,
+
+			actionsForClip = this._actionsByClip[ clipUuid ];
+
+		if ( actionsForClip !== undefined ) {
+
+			return actionsForClip.actionByRoot[ rootUuid ] || null;
+
+		}
+
+		return null;
+
+	},
+
+	// deactivates all previously scheduled actions
+	stopAllAction: function () {
+
+		var actions = this._actions,
+			nActions = this._nActiveActions,
+			bindings = this._bindings,
+			nBindings = this._nActiveBindings;
+
+		this._nActiveActions = 0;
+		this._nActiveBindings = 0;
+
+		for ( var i = 0; i !== nActions; ++ i ) {
+
+			actions[ i ].reset();
+
+		}
+
+		for ( var i = 0; i !== nBindings; ++ i ) {
+
+			bindings[ i ].useCount = 0;
+
+		}
+
+		return this;
+
+	},
+
+	// advance the time and update apply the animation
+	update: function ( deltaTime ) {
+
+		deltaTime *= this.timeScale;
+
+		var actions = this._actions,
+			nActions = this._nActiveActions,
+
+			time = this.time += deltaTime,
+			timeDirection = Math.sign( deltaTime ),
+
+			accuIndex = this._accuIndex ^= 1;
+
+		// run active actions
+
+		for ( var i = 0; i !== nActions; ++ i ) {
+
+			var action = actions[ i ];
+
+			action._update( time, deltaTime, timeDirection, accuIndex );
+
+		}
+
+		// update scene graph
+
+		var bindings = this._bindings,
+			nBindings = this._nActiveBindings;
+
+		for ( var i = 0; i !== nBindings; ++ i ) {
+
+			bindings[ i ].apply( accuIndex );
+
+		}
+
+		return this;
+
+	},
+
+	// return this mixer's root target object
+	getRoot: function () {
+
+		return this._root;
+
+	},
+
+	// free all resources specific to a particular clip
+	uncacheClip: function ( clip ) {
+
+		var actions = this._actions,
+			clipUuid = clip.uuid,
+			actionsByClip = this._actionsByClip,
+			actionsForClip = actionsByClip[ clipUuid ];
+
+		if ( actionsForClip !== undefined ) {
+
+			// note: just calling _removeInactiveAction would mess up the
+			// iteration state and also require updating the state we can
+			// just throw away
+
+			var actionsToRemove = actionsForClip.knownActions;
+
+			for ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {
+
+				var action = actionsToRemove[ i ];
+
+				this._deactivateAction( action );
+
+				var cacheIndex = action._cacheIndex,
+					lastInactiveAction = actions[ actions.length - 1 ];
+
+				action._cacheIndex = null;
+				action._byClipCacheIndex = null;
+
+				lastInactiveAction._cacheIndex = cacheIndex;
+				actions[ cacheIndex ] = lastInactiveAction;
+				actions.pop();
+
+				this._removeInactiveBindingsForAction( action );
+
+			}
+
+			delete actionsByClip[ clipUuid ];
+
+		}
+
+	},
+
+	// free all resources specific to a particular root target object
+	uncacheRoot: function ( root ) {
+
+		var rootUuid = root.uuid,
+			actionsByClip = this._actionsByClip;
+
+		for ( var clipUuid in actionsByClip ) {
+
+			var actionByRoot = actionsByClip[ clipUuid ].actionByRoot,
+				action = actionByRoot[ rootUuid ];
+
+			if ( action !== undefined ) {
+
+				this._deactivateAction( action );
+				this._removeInactiveAction( action );
+
+			}
+
+		}
+
+		var bindingsByRoot = this._bindingsByRootAndName,
+			bindingByName = bindingsByRoot[ rootUuid ];
+
+		if ( bindingByName !== undefined ) {
+
+			for ( var trackName in bindingByName ) {
+
+				var binding = bindingByName[ trackName ];
+				binding.restoreOriginalState();
+				this._removeInactiveBinding( binding );
+
+			}
+
+		}
+
+	},
+
+	// remove a targeted clip from the cache
+	uncacheAction: function ( clip, optionalRoot ) {
+
+		var action = this.existingAction( clip, optionalRoot );
+
+		if ( action !== null ) {
+
+			this._deactivateAction( action );
+			this._removeInactiveAction( action );
+
+		}
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Uniform( value ) {
+
+	if ( typeof value === 'string' ) {
+
+		console.warn( 'THREE.Uniform: Type parameter is no longer needed.' );
+		value = arguments[ 1 ];
+
+	}
+
+	this.value = value;
+
+}
+
+Uniform.prototype.clone = function () {
+
+	return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );
+
+};
+
+/**
+ * @author benaadams / https://twitter.com/ben_a_adams
+ */
+
+function InstancedBufferGeometry() {
+
+	BufferGeometry.call( this );
+
+	this.type = 'InstancedBufferGeometry';
+	this.maxInstancedCount = undefined;
+
+}
+
+InstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), {
+
+	constructor: InstancedBufferGeometry,
+
+	isInstancedBufferGeometry: true,
+
+	copy: function ( source ) {
+
+		BufferGeometry.prototype.copy.call( this, source );
+
+		this.maxInstancedCount = source.maxInstancedCount;
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	}
+
+} );
+
+/**
+ * @author benaadams / https://twitter.com/ben_a_adams
+ */
+
+function InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {
+
+	this.uuid = _Math.generateUUID();
+
+	this.data = interleavedBuffer;
+	this.itemSize = itemSize;
+	this.offset = offset;
+
+	this.normalized = normalized === true;
+
+}
+
+Object.defineProperties( InterleavedBufferAttribute.prototype, {
+
+	count: {
+
+		get: function () {
+
+			return this.data.count;
+
+		}
+
+	},
+
+	array: {
+
+		get: function () {
+
+			return this.data.array;
+
+		}
+
+	}
+
+} );
+
+Object.assign( InterleavedBufferAttribute.prototype, {
+
+	isInterleavedBufferAttribute: true,
+
+	setX: function ( index, x ) {
+
+		this.data.array[ index * this.data.stride + this.offset ] = x;
+
+		return this;
+
+	},
+
+	setY: function ( index, y ) {
+
+		this.data.array[ index * this.data.stride + this.offset + 1 ] = y;
+
+		return this;
+
+	},
+
+	setZ: function ( index, z ) {
+
+		this.data.array[ index * this.data.stride + this.offset + 2 ] = z;
+
+		return this;
+
+	},
+
+	setW: function ( index, w ) {
+
+		this.data.array[ index * this.data.stride + this.offset + 3 ] = w;
+
+		return this;
+
+	},
+
+	getX: function ( index ) {
+
+		return this.data.array[ index * this.data.stride + this.offset ];
+
+	},
+
+	getY: function ( index ) {
+
+		return this.data.array[ index * this.data.stride + this.offset + 1 ];
+
+	},
+
+	getZ: function ( index ) {
+
+		return this.data.array[ index * this.data.stride + this.offset + 2 ];
+
+	},
+
+	getW: function ( index ) {
+
+		return this.data.array[ index * this.data.stride + this.offset + 3 ];
+
+	},
+
+	setXY: function ( index, x, y ) {
+
+		index = index * this.data.stride + this.offset;
+
+		this.data.array[ index + 0 ] = x;
+		this.data.array[ index + 1 ] = y;
+
+		return this;
+
+	},
+
+	setXYZ: function ( index, x, y, z ) {
+
+		index = index * this.data.stride + this.offset;
+
+		this.data.array[ index + 0 ] = x;
+		this.data.array[ index + 1 ] = y;
+		this.data.array[ index + 2 ] = z;
+
+		return this;
+
+	},
+
+	setXYZW: function ( index, x, y, z, w ) {
+
+		index = index * this.data.stride + this.offset;
+
+		this.data.array[ index + 0 ] = x;
+		this.data.array[ index + 1 ] = y;
+		this.data.array[ index + 2 ] = z;
+		this.data.array[ index + 3 ] = w;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author benaadams / https://twitter.com/ben_a_adams
+ */
+
+function InterleavedBuffer( array, stride ) {
+
+	this.uuid = _Math.generateUUID();
+
+	this.array = array;
+	this.stride = stride;
+	this.count = array !== undefined ? array.length / stride : 0;
+
+	this.dynamic = false;
+	this.updateRange = { offset: 0, count: - 1 };
+
+	this.onUploadCallback = function () {};
+
+	this.version = 0;
+
+}
+
+Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {
+
+	set: function ( value ) {
+
+		if ( value === true ) this.version ++;
+
+	}
+
+} );
+
+Object.assign( InterleavedBuffer.prototype, {
+
+	isInterleavedBuffer: true,
+
+	setArray: function ( array ) {
+
+		if ( Array.isArray( array ) ) {
+
+			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
+
+		}
+
+		this.count = array !== undefined ? array.length / this.stride : 0;
+		this.array = array;
+
+	},
+
+	setDynamic: function ( value ) {
+
+		this.dynamic = value;
+
+		return this;
+
+	},
+
+	copy: function ( source ) {
+
+		this.array = new source.array.constructor( source.array );
+		this.count = source.count;
+		this.stride = source.stride;
+		this.dynamic = source.dynamic;
+
+		return this;
+
+	},
+
+	copyAt: function ( index1, attribute, index2 ) {
+
+		index1 *= this.stride;
+		index2 *= attribute.stride;
+
+		for ( var i = 0, l = this.stride; i < l; i ++ ) {
+
+			this.array[ index1 + i ] = attribute.array[ index2 + i ];
+
+		}
+
+		return this;
+
+	},
+
+	set: function ( value, offset ) {
+
+		if ( offset === undefined ) offset = 0;
+
+		this.array.set( value, offset );
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	onUpload: function ( callback ) {
+
+		this.onUploadCallback = callback;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author benaadams / https://twitter.com/ben_a_adams
+ */
+
+function InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {
+
+	InterleavedBuffer.call( this, array, stride );
+
+	this.meshPerAttribute = meshPerAttribute || 1;
+
+}
+
+InstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), {
+
+	constructor: InstancedInterleavedBuffer,
+
+	isInstancedInterleavedBuffer: true,
+
+	copy: function ( source ) {
+
+		InterleavedBuffer.prototype.copy.call( this, source );
+
+		this.meshPerAttribute = source.meshPerAttribute;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author benaadams / https://twitter.com/ben_a_adams
+ */
+
+function InstancedBufferAttribute( array, itemSize, meshPerAttribute ) {
+
+	BufferAttribute.call( this, array, itemSize );
+
+	this.meshPerAttribute = meshPerAttribute || 1;
+
+}
+
+InstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), {
+
+	constructor: InstancedBufferAttribute,
+
+	isInstancedBufferAttribute: true,
+
+	copy: function ( source ) {
+
+		BufferAttribute.prototype.copy.call( this, source );
+
+		this.meshPerAttribute = source.meshPerAttribute;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author bhouston / http://clara.io/
+ * @author stephomi / http://stephaneginier.com/
+ */
+
+function Raycaster( origin, direction, near, far ) {
+
+	this.ray = new Ray( origin, direction );
+	// direction is assumed to be normalized (for accurate distance calculations)
+
+	this.near = near || 0;
+	this.far = far || Infinity;
+
+	this.params = {
+		Mesh: {},
+		Line: {},
+		LOD: {},
+		Points: { threshold: 1 },
+		Sprite: {}
+	};
+
+	Object.defineProperties( this.params, {
+		PointCloud: {
+			get: function () {
+
+				console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );
+				return this.Points;
+
+			}
+		}
+	} );
+
+}
+
+function ascSort( a, b ) {
+
+	return a.distance - b.distance;
+
+}
+
+function intersectObject( object, raycaster, intersects, recursive ) {
+
+	if ( object.visible === false ) return;
+
+	object.raycast( raycaster, intersects );
+
+	if ( recursive === true ) {
+
+		var children = object.children;
+
+		for ( var i = 0, l = children.length; i < l; i ++ ) {
+
+			intersectObject( children[ i ], raycaster, intersects, true );
+
+		}
+
+	}
+
+}
+
+Object.assign( Raycaster.prototype, {
+
+	linePrecision: 1,
+
+	set: function ( origin, direction ) {
+
+		// direction is assumed to be normalized (for accurate distance calculations)
+
+		this.ray.set( origin, direction );
+
+	},
+
+	setFromCamera: function ( coords, camera ) {
+
+		if ( ( camera && camera.isPerspectiveCamera ) ) {
+
+			this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
+			this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();
+
+		} else if ( ( camera && camera.isOrthographicCamera ) ) {
+
+			this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera
+			this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );
+
+		} else {
+
+			console.error( 'THREE.Raycaster: Unsupported camera type.' );
+
+		}
+
+	},
+
+	intersectObject: function ( object, recursive ) {
+
+		var intersects = [];
+
+		intersectObject( object, this, intersects, recursive );
+
+		intersects.sort( ascSort );
+
+		return intersects;
+
+	},
+
+	intersectObjects: function ( objects, recursive ) {
+
+		var intersects = [];
+
+		if ( Array.isArray( objects ) === false ) {
+
+			console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );
+			return intersects;
+
+		}
+
+		for ( var i = 0, l = objects.length; i < l; i ++ ) {
+
+			intersectObject( objects[ i ], this, intersects, recursive );
+
+		}
+
+		intersects.sort( ascSort );
+
+		return intersects;
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function Clock( autoStart ) {
+
+	this.autoStart = ( autoStart !== undefined ) ? autoStart : true;
+
+	this.startTime = 0;
+	this.oldTime = 0;
+	this.elapsedTime = 0;
+
+	this.running = false;
+
+}
+
+Object.assign( Clock.prototype, {
+
+	start: function () {
+
+		this.startTime = ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732
+
+		this.oldTime = this.startTime;
+		this.elapsedTime = 0;
+		this.running = true;
+
+	},
+
+	stop: function () {
+
+		this.getElapsedTime();
+		this.running = false;
+		this.autoStart = false;
+
+	},
+
+	getElapsedTime: function () {
+
+		this.getDelta();
+		return this.elapsedTime;
+
+	},
+
+	getDelta: function () {
+
+		var diff = 0;
+
+		if ( this.autoStart && ! this.running ) {
+
+			this.start();
+			return 0;
+
+		}
+
+		if ( this.running ) {
+
+			var newTime = ( typeof performance === 'undefined' ? Date : performance ).now();
+
+			diff = ( newTime - this.oldTime ) / 1000;
+			this.oldTime = newTime;
+
+			this.elapsedTime += diff;
+
+		}
+
+		return diff;
+
+	}
+
+} );
+
+/**
+ * @author bhouston / http://clara.io
+ * @author WestLangley / http://github.com/WestLangley
+ *
+ * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
+ *
+ * The poles (phi) are at the positive and negative y axis.
+ * The equator starts at positive z.
+ */
+
+function Spherical( radius, phi, theta ) {
+
+	this.radius = ( radius !== undefined ) ? radius : 1.0;
+	this.phi = ( phi !== undefined ) ? phi : 0; // up / down towards top and bottom pole
+	this.theta = ( theta !== undefined ) ? theta : 0; // around the equator of the sphere
+
+	return this;
+
+}
+
+Object.assign( Spherical.prototype, {
+
+	set: function ( radius, phi, theta ) {
+
+		this.radius = radius;
+		this.phi = phi;
+		this.theta = theta;
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( other ) {
+
+		this.radius = other.radius;
+		this.phi = other.phi;
+		this.theta = other.theta;
+
+		return this;
+
+	},
+
+	// restrict phi to be betwee EPS and PI-EPS
+	makeSafe: function () {
+
+		var EPS = 0.000001;
+		this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );
+
+		return this;
+
+	},
+
+	setFromVector3: function ( vec3 ) {
+
+		this.radius = vec3.length();
+
+		if ( this.radius === 0 ) {
+
+			this.theta = 0;
+			this.phi = 0;
+
+		} else {
+
+			this.theta = Math.atan2( vec3.x, vec3.z ); // equator angle around y-up axis
+			this.phi = Math.acos( _Math.clamp( vec3.y / this.radius, - 1, 1 ) ); // polar angle
+
+		}
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author Mugen87 / https://github.com/Mugen87
+ *
+ * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
+ *
+ */
+
+function Cylindrical( radius, theta, y ) {
+
+	this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane
+	this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
+	this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane
+
+	return this;
+
+}
+
+Object.assign( Cylindrical.prototype, {
+
+	set: function ( radius, theta, y ) {
+
+		this.radius = radius;
+		this.theta = theta;
+		this.y = y;
+
+		return this;
+
+	},
+
+	clone: function () {
+
+		return new this.constructor().copy( this );
+
+	},
+
+	copy: function ( other ) {
+
+		this.radius = other.radius;
+		this.theta = other.theta;
+		this.y = other.y;
+
+		return this;
+
+	},
+
+	setFromVector3: function ( vec3 ) {
+
+		this.radius = Math.sqrt( vec3.x * vec3.x + vec3.z * vec3.z );
+		this.theta = Math.atan2( vec3.x, vec3.z );
+		this.y = vec3.y;
+
+		return this;
+
+	}
+
+} );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+function ImmediateRenderObject( material ) {
+
+	Object3D.call( this );
+
+	this.material = material;
+	this.render = function ( /* renderCallback */ ) {};
+
+}
+
+ImmediateRenderObject.prototype = Object.create( Object3D.prototype );
+ImmediateRenderObject.prototype.constructor = ImmediateRenderObject;
+
+ImmediateRenderObject.prototype.isImmediateRenderObject = true;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function VertexNormalsHelper( object, size, hex, linewidth ) {
+
+	this.object = object;
+
+	this.size = ( size !== undefined ) ? size : 1;
+
+	var color = ( hex !== undefined ) ? hex : 0xff0000;
+
+	var width = ( linewidth !== undefined ) ? linewidth : 1;
+
+	//
+
+	var nNormals = 0;
+
+	var objGeometry = this.object.geometry;
+
+	if ( objGeometry && objGeometry.isGeometry ) {
+
+		nNormals = objGeometry.faces.length * 3;
+
+	} else if ( objGeometry && objGeometry.isBufferGeometry ) {
+
+		nNormals = objGeometry.attributes.normal.count;
+
+	}
+
+	//
+
+	var geometry = new BufferGeometry();
+
+	var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );
+
+	geometry.addAttribute( 'position', positions );
+
+	LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );
+
+	//
+
+	this.matrixAutoUpdate = false;
+
+	this.update();
+
+}
+
+VertexNormalsHelper.prototype = Object.create( LineSegments.prototype );
+VertexNormalsHelper.prototype.constructor = VertexNormalsHelper;
+
+VertexNormalsHelper.prototype.update = ( function () {
+
+	var v1 = new Vector3();
+	var v2 = new Vector3();
+	var normalMatrix = new Matrix3();
+
+	return function update() {
+
+		var keys = [ 'a', 'b', 'c' ];
+
+		this.object.updateMatrixWorld( true );
+
+		normalMatrix.getNormalMatrix( this.object.matrixWorld );
+
+		var matrixWorld = this.object.matrixWorld;
+
+		var position = this.geometry.attributes.position;
+
+		//
+
+		var objGeometry = this.object.geometry;
+
+		if ( objGeometry && objGeometry.isGeometry ) {
+
+			var vertices = objGeometry.vertices;
+
+			var faces = objGeometry.faces;
+
+			var idx = 0;
+
+			for ( var i = 0, l = faces.length; i < l; i ++ ) {
+
+				var face = faces[ i ];
+
+				for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {
+
+					var vertex = vertices[ face[ keys[ j ] ] ];
+
+					var normal = face.vertexNormals[ j ];
+
+					v1.copy( vertex ).applyMatrix4( matrixWorld );
+
+					v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
+
+					position.setXYZ( idx, v1.x, v1.y, v1.z );
+
+					idx = idx + 1;
+
+					position.setXYZ( idx, v2.x, v2.y, v2.z );
+
+					idx = idx + 1;
+
+				}
+
+			}
+
+		} else if ( objGeometry && objGeometry.isBufferGeometry ) {
+
+			var objPos = objGeometry.attributes.position;
+
+			var objNorm = objGeometry.attributes.normal;
+
+			var idx = 0;
+
+			// for simplicity, ignore index and drawcalls, and render every normal
+
+			for ( var j = 0, jl = objPos.count; j < jl; j ++ ) {
+
+				v1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );
+
+				v2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );
+
+				v2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
+
+				position.setXYZ( idx, v1.x, v1.y, v1.z );
+
+				idx = idx + 1;
+
+				position.setXYZ( idx, v2.x, v2.y, v2.z );
+
+				idx = idx + 1;
+
+			}
+
+		}
+
+		position.needsUpdate = true;
+
+	};
+
+}() );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function SpotLightHelper( light, color ) {
+
+	Object3D.call( this );
+
+	this.light = light;
+	this.light.updateMatrixWorld();
+
+	this.matrix = light.matrixWorld;
+	this.matrixAutoUpdate = false;
+
+	this.color = color;
+
+	var geometry = new BufferGeometry();
+
+	var positions = [
+		0, 0, 0, 	0, 0, 1,
+		0, 0, 0, 	1, 0, 1,
+		0, 0, 0,	- 1, 0, 1,
+		0, 0, 0, 	0, 1, 1,
+		0, 0, 0, 	0, - 1, 1
+	];
+
+	for ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {
+
+		var p1 = ( i / l ) * Math.PI * 2;
+		var p2 = ( j / l ) * Math.PI * 2;
+
+		positions.push(
+			Math.cos( p1 ), Math.sin( p1 ), 1,
+			Math.cos( p2 ), Math.sin( p2 ), 1
+		);
+
+	}
+
+	geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
+
+	var material = new LineBasicMaterial( { fog: false } );
+
+	this.cone = new LineSegments( geometry, material );
+	this.add( this.cone );
+
+	this.update();
+
+}
+
+SpotLightHelper.prototype = Object.create( Object3D.prototype );
+SpotLightHelper.prototype.constructor = SpotLightHelper;
+
+SpotLightHelper.prototype.dispose = function () {
+
+	this.cone.geometry.dispose();
+	this.cone.material.dispose();
+
+};
+
+SpotLightHelper.prototype.update = function () {
+
+	var vector = new Vector3();
+	var vector2 = new Vector3();
+
+	return function update() {
+
+		this.light.updateMatrixWorld();
+
+		var coneLength = this.light.distance ? this.light.distance : 1000;
+		var coneWidth = coneLength * Math.tan( this.light.angle );
+
+		this.cone.scale.set( coneWidth, coneWidth, coneLength );
+
+		vector.setFromMatrixPosition( this.light.matrixWorld );
+		vector2.setFromMatrixPosition( this.light.target.matrixWorld );
+
+		this.cone.lookAt( vector2.sub( vector ) );
+
+		if ( this.color !== undefined ) {
+
+			this.cone.material.color.set( this.color );
+
+		} else {
+
+			this.cone.material.color.copy( this.light.color );
+
+		}
+
+	};
+
+}();
+
+/**
+ * @author Sean Griffin / http://twitter.com/sgrif
+ * @author Michael Guerrero / http://realitymeltdown.com
+ * @author mrdoob / http://mrdoob.com/
+ * @author ikerr / http://verold.com
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+function getBoneList( object ) {
+
+	var boneList = [];
+
+	if ( object && object.isBone ) {
+
+		boneList.push( object );
+
+	}
+
+	for ( var i = 0; i < object.children.length; i ++ ) {
+
+		boneList.push.apply( boneList, getBoneList( object.children[ i ] ) );
+
+	}
+
+	return boneList;
+
+}
+
+function SkeletonHelper( object ) {
+
+	var bones = getBoneList( object );
+
+	var geometry = new BufferGeometry();
+
+	var vertices = [];
+	var colors = [];
+
+	var color1 = new Color( 0, 0, 1 );
+	var color2 = new Color( 0, 1, 0 );
+
+	for ( var i = 0; i < bones.length; i ++ ) {
+
+		var bone = bones[ i ];
+
+		if ( bone.parent && bone.parent.isBone ) {
+
+			vertices.push( 0, 0, 0 );
+			vertices.push( 0, 0, 0 );
+			colors.push( color1.r, color1.g, color1.b );
+			colors.push( color2.r, color2.g, color2.b );
+
+		}
+
+	}
+
+	geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+	var material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );
+
+	LineSegments.call( this, geometry, material );
+
+	this.root = object;
+	this.bones = bones;
+
+	this.matrix = object.matrixWorld;
+	this.matrixAutoUpdate = false;
+
+}
+
+SkeletonHelper.prototype = Object.create( LineSegments.prototype );
+SkeletonHelper.prototype.constructor = SkeletonHelper;
+
+SkeletonHelper.prototype.updateMatrixWorld = function () {
+
+	var vector = new Vector3();
+
+	var boneMatrix = new Matrix4();
+	var matrixWorldInv = new Matrix4();
+
+	return function updateMatrixWorld( force ) {
+
+		var bones = this.bones;
+
+		var geometry = this.geometry;
+		var position = geometry.getAttribute( 'position' );
+
+		matrixWorldInv.getInverse( this.root.matrixWorld );
+
+		for ( var i = 0, j = 0; i < bones.length; i ++ ) {
+
+			var bone = bones[ i ];
+
+			if ( bone.parent && bone.parent.isBone ) {
+
+				boneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );
+				vector.setFromMatrixPosition( boneMatrix );
+				position.setXYZ( j, vector.x, vector.y, vector.z );
+
+				boneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );
+				vector.setFromMatrixPosition( boneMatrix );
+				position.setXYZ( j + 1, vector.x, vector.y, vector.z );
+
+				j += 2;
+
+			}
+
+		}
+
+		geometry.getAttribute( 'position' ).needsUpdate = true;
+
+		Object3D.prototype.updateMatrixWorld.call( this, force );
+
+	};
+
+}();
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function PointLightHelper( light, sphereSize, color ) {
+
+	this.light = light;
+	this.light.updateMatrixWorld();
+
+	this.color = color;
+
+	var geometry = new SphereBufferGeometry( sphereSize, 4, 2 );
+	var material = new MeshBasicMaterial( { wireframe: true, fog: false } );
+
+	Mesh.call( this, geometry, material );
+
+	this.matrix = this.light.matrixWorld;
+	this.matrixAutoUpdate = false;
+
+	this.update();
+
+
+	/*
+	var distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );
+	var distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );
+
+	this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
+	this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );
+
+	var d = light.distance;
+
+	if ( d === 0.0 ) {
+
+		this.lightDistance.visible = false;
+
+	} else {
+
+		this.lightDistance.scale.set( d, d, d );
+
+	}
+
+	this.add( this.lightDistance );
+	*/
+
+}
+
+PointLightHelper.prototype = Object.create( Mesh.prototype );
+PointLightHelper.prototype.constructor = PointLightHelper;
+
+PointLightHelper.prototype.dispose = function () {
+
+	this.geometry.dispose();
+	this.material.dispose();
+
+};
+
+PointLightHelper.prototype.update = function () {
+
+	if ( this.color !== undefined ) {
+
+		this.material.color.set( this.color );
+
+	} else {
+
+		this.material.color.copy( this.light.color );
+
+	}
+
+	/*
+	var d = this.light.distance;
+
+	if ( d === 0.0 ) {
+
+		this.lightDistance.visible = false;
+
+	} else {
+
+		this.lightDistance.visible = true;
+		this.lightDistance.scale.set( d, d, d );
+
+	}
+	*/
+
+};
+
+/**
+ * @author abelnation / http://github.com/abelnation
+ * @author Mugen87 / http://github.com/Mugen87
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function RectAreaLightHelper( light, color ) {
+
+	Object3D.call( this );
+
+	this.light = light;
+	this.light.updateMatrixWorld();
+
+	this.matrix = light.matrixWorld;
+	this.matrixAutoUpdate = false;
+
+	this.color = color;
+
+	var material = new LineBasicMaterial( { fog: false } );
+
+	var geometry = new BufferGeometry();
+
+	geometry.addAttribute( 'position', new BufferAttribute( new Float32Array( 5 * 3 ), 3 ) );
+
+	this.line = new Line( geometry, material );
+	this.add( this.line );
+
+
+	this.update();
+
+}
+
+RectAreaLightHelper.prototype = Object.create( Object3D.prototype );
+RectAreaLightHelper.prototype.constructor = RectAreaLightHelper;
+
+RectAreaLightHelper.prototype.dispose = function () {
+
+	this.children[ 0 ].geometry.dispose();
+	this.children[ 0 ].material.dispose();
+
+};
+
+RectAreaLightHelper.prototype.update = function () {
+
+	// calculate new dimensions of the helper
+
+	var hx = this.light.width * 0.5;
+	var hy = this.light.height * 0.5;
+
+	var position = this.line.geometry.attributes.position;
+	var array = position.array;
+
+	// update vertices
+
+	array[ 0 ] = hx; array[ 1 ] = - hy; array[ 2 ] = 0;
+	array[ 3 ] = hx; array[ 4 ] = hy; array[ 5 ] = 0;
+	array[ 6 ] = - hx; array[ 7 ] = hy; array[ 8 ] = 0;
+	array[ 9 ] = - hx; array[ 10 ] = - hy; array[ 11 ] = 0;
+	array[ 12 ] = hx; array[ 13 ] = - hy; array[ 14 ] = 0;
+
+	position.needsUpdate = true;
+
+	if ( this.color !== undefined ) {
+
+		this.line.material.color.set( this.color );
+
+	} else {
+
+		this.line.material.color.copy( this.light.color );
+
+	}
+
+};
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / https://github.com/Mugen87
+ */
+
+function HemisphereLightHelper( light, size, color ) {
+
+	Object3D.call( this );
+
+	this.light = light;
+	this.light.updateMatrixWorld();
+
+	this.matrix = light.matrixWorld;
+	this.matrixAutoUpdate = false;
+
+	this.color = color;
+
+	var geometry = new OctahedronBufferGeometry( size );
+	geometry.rotateY( Math.PI * 0.5 );
+
+	this.material = new MeshBasicMaterial( { wireframe: true, fog: false } );
+	if ( this.color === undefined ) this.material.vertexColors = VertexColors;
+
+	var position = geometry.getAttribute( 'position' );
+	var colors = new Float32Array( position.count * 3 );
+
+	geometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );
+
+	this.add( new Mesh( geometry, this.material ) );
+
+	this.update();
+
+}
+
+HemisphereLightHelper.prototype = Object.create( Object3D.prototype );
+HemisphereLightHelper.prototype.constructor = HemisphereLightHelper;
+
+HemisphereLightHelper.prototype.dispose = function () {
+
+	this.children[ 0 ].geometry.dispose();
+	this.children[ 0 ].material.dispose();
+
+};
+
+HemisphereLightHelper.prototype.update = function () {
+
+	var vector = new Vector3();
+
+	var color1 = new Color();
+	var color2 = new Color();
+
+	return function update() {
+
+		var mesh = this.children[ 0 ];
+
+		if ( this.color !== undefined ) {
+
+			this.material.color.set( this.color );
+
+		} else {
+
+			var colors = mesh.geometry.getAttribute( 'color' );
+
+			color1.copy( this.light.color );
+			color2.copy( this.light.groundColor );
+
+			for ( var i = 0, l = colors.count; i < l; i ++ ) {
+
+				var color = ( i < ( l / 2 ) ) ? color1 : color2;
+
+				colors.setXYZ( i, color.r, color.g, color.b );
+
+			}
+
+			colors.needsUpdate = true;
+
+		}
+
+		mesh.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );
+
+	};
+
+}();
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function GridHelper( size, divisions, color1, color2 ) {
+
+	size = size || 10;
+	divisions = divisions || 10;
+	color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
+	color2 = new Color( color2 !== undefined ? color2 : 0x888888 );
+
+	var center = divisions / 2;
+	var step = size / divisions;
+	var halfSize = size / 2;
+
+	var vertices = [], colors = [];
+
+	for ( var i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {
+
+		vertices.push( - halfSize, 0, k, halfSize, 0, k );
+		vertices.push( k, 0, - halfSize, k, 0, halfSize );
+
+		var color = i === center ? color1 : color2;
+
+		color.toArray( colors, j ); j += 3;
+		color.toArray( colors, j ); j += 3;
+		color.toArray( colors, j ); j += 3;
+		color.toArray( colors, j ); j += 3;
+
+	}
+
+	var geometry = new BufferGeometry();
+	geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+	var material = new LineBasicMaterial( { vertexColors: VertexColors } );
+
+	LineSegments.call( this, geometry, material );
+
+}
+
+GridHelper.prototype = Object.create( LineSegments.prototype );
+GridHelper.prototype.constructor = GridHelper;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / http://github.com/Mugen87
+ * @author Hectate / http://www.github.com/Hectate
+ */
+
+function PolarGridHelper( radius, radials, circles, divisions, color1, color2 ) {
+
+	radius = radius || 10;
+	radials = radials || 16;
+	circles = circles || 8;
+	divisions = divisions || 64;
+	color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
+	color2 = new Color( color2 !== undefined ? color2 : 0x888888 );
+
+	var vertices = [];
+	var colors = [];
+
+	var x, z;
+	var v, i, j, r, color;
+
+	// create the radials
+
+	for ( i = 0; i <= radials; i ++ ) {
+
+		v = ( i / radials ) * ( Math.PI * 2 );
+
+		x = Math.sin( v ) * radius;
+		z = Math.cos( v ) * radius;
+
+		vertices.push( 0, 0, 0 );
+		vertices.push( x, 0, z );
+
+		color = ( i & 1 ) ? color1 : color2;
+
+		colors.push( color.r, color.g, color.b );
+		colors.push( color.r, color.g, color.b );
+
+	}
+
+	// create the circles
+
+	for ( i = 0; i <= circles; i ++ ) {
+
+		color = ( i & 1 ) ? color1 : color2;
+
+		r = radius - ( radius / circles * i );
+
+		for ( j = 0; j < divisions; j ++ ) {
+
+			// first vertex
+
+			v = ( j / divisions ) * ( Math.PI * 2 );
+
+			x = Math.sin( v ) * r;
+			z = Math.cos( v ) * r;
+
+			vertices.push( x, 0, z );
+			colors.push( color.r, color.g, color.b );
+
+			// second vertex
+
+			v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );
+
+			x = Math.sin( v ) * r;
+			z = Math.cos( v ) * r;
+
+			vertices.push( x, 0, z );
+			colors.push( color.r, color.g, color.b );
+
+		}
+
+	}
+
+	var geometry = new BufferGeometry();
+	geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+	var material = new LineBasicMaterial( { vertexColors: VertexColors } );
+
+	LineSegments.call( this, geometry, material );
+
+}
+
+PolarGridHelper.prototype = Object.create( LineSegments.prototype );
+PolarGridHelper.prototype.constructor = PolarGridHelper;
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function FaceNormalsHelper( object, size, hex, linewidth ) {
+
+	// FaceNormalsHelper only supports THREE.Geometry
+
+	this.object = object;
+
+	this.size = ( size !== undefined ) ? size : 1;
+
+	var color = ( hex !== undefined ) ? hex : 0xffff00;
+
+	var width = ( linewidth !== undefined ) ? linewidth : 1;
+
+	//
+
+	var nNormals = 0;
+
+	var objGeometry = this.object.geometry;
+
+	if ( objGeometry && objGeometry.isGeometry ) {
+
+		nNormals = objGeometry.faces.length;
+
+	} else {
+
+		console.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );
+
+	}
+
+	//
+
+	var geometry = new BufferGeometry();
+
+	var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );
+
+	geometry.addAttribute( 'position', positions );
+
+	LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );
+
+	//
+
+	this.matrixAutoUpdate = false;
+	this.update();
+
+}
+
+FaceNormalsHelper.prototype = Object.create( LineSegments.prototype );
+FaceNormalsHelper.prototype.constructor = FaceNormalsHelper;
+
+FaceNormalsHelper.prototype.update = ( function () {
+
+	var v1 = new Vector3();
+	var v2 = new Vector3();
+	var normalMatrix = new Matrix3();
+
+	return function update() {
+
+		this.object.updateMatrixWorld( true );
+
+		normalMatrix.getNormalMatrix( this.object.matrixWorld );
+
+		var matrixWorld = this.object.matrixWorld;
+
+		var position = this.geometry.attributes.position;
+
+		//
+
+		var objGeometry = this.object.geometry;
+
+		var vertices = objGeometry.vertices;
+
+		var faces = objGeometry.faces;
+
+		var idx = 0;
+
+		for ( var i = 0, l = faces.length; i < l; i ++ ) {
+
+			var face = faces[ i ];
+
+			var normal = face.normal;
+
+			v1.copy( vertices[ face.a ] )
+				.add( vertices[ face.b ] )
+				.add( vertices[ face.c ] )
+				.divideScalar( 3 )
+				.applyMatrix4( matrixWorld );
+
+			v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
+
+			position.setXYZ( idx, v1.x, v1.y, v1.z );
+
+			idx = idx + 1;
+
+			position.setXYZ( idx, v2.x, v2.y, v2.z );
+
+			idx = idx + 1;
+
+		}
+
+		position.needsUpdate = true;
+
+	};
+
+}() );
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author mrdoob / http://mrdoob.com/
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function DirectionalLightHelper( light, size, color ) {
+
+	Object3D.call( this );
+
+	this.light = light;
+	this.light.updateMatrixWorld();
+
+	this.matrix = light.matrixWorld;
+	this.matrixAutoUpdate = false;
+
+	this.color = color;
+
+	if ( size === undefined ) size = 1;
+
+	var geometry = new BufferGeometry();
+	geometry.addAttribute( 'position', new Float32BufferAttribute( [
+		- size, size, 0,
+		size, size, 0,
+		size, - size, 0,
+		- size, - size, 0,
+		- size, size, 0
+	], 3 ) );
+
+	var material = new LineBasicMaterial( { fog: false } );
+
+	this.lightPlane = new Line( geometry, material );
+	this.add( this.lightPlane );
+
+	geometry = new BufferGeometry();
+	geometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );
+
+	this.targetLine = new Line( geometry, material );
+	this.add( this.targetLine );
+
+	this.update();
+
+}
+
+DirectionalLightHelper.prototype = Object.create( Object3D.prototype );
+DirectionalLightHelper.prototype.constructor = DirectionalLightHelper;
+
+DirectionalLightHelper.prototype.dispose = function () {
+
+	this.lightPlane.geometry.dispose();
+	this.lightPlane.material.dispose();
+	this.targetLine.geometry.dispose();
+	this.targetLine.material.dispose();
+
+};
+
+DirectionalLightHelper.prototype.update = function () {
+
+	var v1 = new Vector3();
+	var v2 = new Vector3();
+	var v3 = new Vector3();
+
+	return function update() {
+
+		v1.setFromMatrixPosition( this.light.matrixWorld );
+		v2.setFromMatrixPosition( this.light.target.matrixWorld );
+		v3.subVectors( v2, v1 );
+
+		this.lightPlane.lookAt( v3 );
+
+		if ( this.color !== undefined ) {
+
+			this.lightPlane.material.color.set( this.color );
+			this.targetLine.material.color.set( this.color );
+
+		} else {
+
+			this.lightPlane.material.color.copy( this.light.color );
+			this.targetLine.material.color.copy( this.light.color );
+
+		}
+
+		this.targetLine.lookAt( v3 );
+		this.targetLine.scale.z = v3.length();
+
+	};
+
+}();
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ * @author Mugen87 / https://github.com/Mugen87
+ *
+ *	- shows frustum, line of sight and up of the camera
+ *	- suitable for fast updates
+ * 	- based on frustum visualization in lightgl.js shadowmap example
+ *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
+ */
+
+function CameraHelper( camera ) {
+
+	var geometry = new BufferGeometry();
+	var material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );
+
+	var vertices = [];
+	var colors = [];
+
+	var pointMap = {};
+
+	// colors
+
+	var colorFrustum = new Color( 0xffaa00 );
+	var colorCone = new Color( 0xff0000 );
+	var colorUp = new Color( 0x00aaff );
+	var colorTarget = new Color( 0xffffff );
+	var colorCross = new Color( 0x333333 );
+
+	// near
+
+	addLine( 'n1', 'n2', colorFrustum );
+	addLine( 'n2', 'n4', colorFrustum );
+	addLine( 'n4', 'n3', colorFrustum );
+	addLine( 'n3', 'n1', colorFrustum );
+
+	// far
+
+	addLine( 'f1', 'f2', colorFrustum );
+	addLine( 'f2', 'f4', colorFrustum );
+	addLine( 'f4', 'f3', colorFrustum );
+	addLine( 'f3', 'f1', colorFrustum );
+
+	// sides
+
+	addLine( 'n1', 'f1', colorFrustum );
+	addLine( 'n2', 'f2', colorFrustum );
+	addLine( 'n3', 'f3', colorFrustum );
+	addLine( 'n4', 'f4', colorFrustum );
+
+	// cone
+
+	addLine( 'p', 'n1', colorCone );
+	addLine( 'p', 'n2', colorCone );
+	addLine( 'p', 'n3', colorCone );
+	addLine( 'p', 'n4', colorCone );
+
+	// up
+
+	addLine( 'u1', 'u2', colorUp );
+	addLine( 'u2', 'u3', colorUp );
+	addLine( 'u3', 'u1', colorUp );
+
+	// target
+
+	addLine( 'c', 't', colorTarget );
+	addLine( 'p', 'c', colorCross );
+
+	// cross
+
+	addLine( 'cn1', 'cn2', colorCross );
+	addLine( 'cn3', 'cn4', colorCross );
+
+	addLine( 'cf1', 'cf2', colorCross );
+	addLine( 'cf3', 'cf4', colorCross );
+
+	function addLine( a, b, color ) {
+
+		addPoint( a, color );
+		addPoint( b, color );
+
+	}
+
+	function addPoint( id, color ) {
+
+		vertices.push( 0, 0, 0 );
+		colors.push( color.r, color.g, color.b );
+
+		if ( pointMap[ id ] === undefined ) {
+
+			pointMap[ id ] = [];
+
+		}
+
+		pointMap[ id ].push( ( vertices.length / 3 ) - 1 );
+
+	}
+
+	geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+	LineSegments.call( this, geometry, material );
+
+	this.camera = camera;
+	if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();
+
+	this.matrix = camera.matrixWorld;
+	this.matrixAutoUpdate = false;
+
+	this.pointMap = pointMap;
+
+	this.update();
+
+}
+
+CameraHelper.prototype = Object.create( LineSegments.prototype );
+CameraHelper.prototype.constructor = CameraHelper;
+
+CameraHelper.prototype.update = function () {
+
+	var geometry, pointMap;
+
+	var vector = new Vector3();
+	var camera = new Camera();
+
+	function setPoint( point, x, y, z ) {
+
+		vector.set( x, y, z ).unproject( camera );
+
+		var points = pointMap[ point ];
+
+		if ( points !== undefined ) {
+
+			var position = geometry.getAttribute( 'position' );
+
+			for ( var i = 0, l = points.length; i < l; i ++ ) {
+
+				position.setXYZ( points[ i ], vector.x, vector.y, vector.z );
+
+			}
+
+		}
+
+	}
+
+	return function update() {
+
+		geometry = this.geometry;
+		pointMap = this.pointMap;
+
+		var w = 1, h = 1;
+
+		// we need just camera projection matrix
+		// world matrix must be identity
+
+		camera.projectionMatrix.copy( this.camera.projectionMatrix );
+
+		// center / target
+
+		setPoint( 'c', 0, 0, - 1 );
+		setPoint( 't', 0, 0, 1 );
+
+		// near
+
+		setPoint( 'n1', - w, - h, - 1 );
+		setPoint( 'n2', w, - h, - 1 );
+		setPoint( 'n3', - w, h, - 1 );
+		setPoint( 'n4', w, h, - 1 );
+
+		// far
+
+		setPoint( 'f1', - w, - h, 1 );
+		setPoint( 'f2', w, - h, 1 );
+		setPoint( 'f3', - w, h, 1 );
+		setPoint( 'f4', w, h, 1 );
+
+		// up
+
+		setPoint( 'u1', w * 0.7, h * 1.1, - 1 );
+		setPoint( 'u2', - w * 0.7, h * 1.1, - 1 );
+		setPoint( 'u3', 0, h * 2, - 1 );
+
+		// cross
+
+		setPoint( 'cf1', - w, 0, 1 );
+		setPoint( 'cf2', w, 0, 1 );
+		setPoint( 'cf3', 0, - h, 1 );
+		setPoint( 'cf4', 0, h, 1 );
+
+		setPoint( 'cn1', - w, 0, - 1 );
+		setPoint( 'cn2', w, 0, - 1 );
+		setPoint( 'cn3', 0, - h, - 1 );
+		setPoint( 'cn4', 0, h, - 1 );
+
+		geometry.getAttribute( 'position' ).needsUpdate = true;
+
+	};
+
+}();
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / http://github.com/Mugen87
+ */
+
+function BoxHelper( object, color ) {
+
+	this.object = object;
+
+	if ( color === undefined ) color = 0xffff00;
+
+	var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
+	var positions = new Float32Array( 8 * 3 );
+
+	var geometry = new BufferGeometry();
+	geometry.setIndex( new BufferAttribute( indices, 1 ) );
+	geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );
+
+	LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
+
+	this.matrixAutoUpdate = false;
+
+	this.update();
+
+}
+
+BoxHelper.prototype = Object.create( LineSegments.prototype );
+BoxHelper.prototype.constructor = BoxHelper;
+
+BoxHelper.prototype.update = ( function () {
+
+	var box = new Box3();
+
+	return function update( object ) {
+
+		if ( object !== undefined ) {
+
+			console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );
+
+		}
+
+		if ( this.object !== undefined ) {
+
+			box.setFromObject( this.object );
+
+		}
+
+		if ( box.isEmpty() ) return;
+
+		var min = box.min;
+		var max = box.max;
+
+		/*
+		  5____4
+		1/___0/|
+		| 6__|_7
+		2/___3/
+
+		0: max.x, max.y, max.z
+		1: min.x, max.y, max.z
+		2: min.x, min.y, max.z
+		3: max.x, min.y, max.z
+		4: max.x, max.y, min.z
+		5: min.x, max.y, min.z
+		6: min.x, min.y, min.z
+		7: max.x, min.y, min.z
+		*/
+
+		var position = this.geometry.attributes.position;
+		var array = position.array;
+
+		array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
+		array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
+		array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
+		array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
+		array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
+		array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
+		array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
+		array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;
+
+		position.needsUpdate = true;
+
+		this.geometry.computeBoundingSphere();
+
+	};
+
+} )();
+
+BoxHelper.prototype.setFromObject = function ( object ) {
+
+	this.object = object;
+	this.update();
+
+	return this;
+
+};
+
+/**
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function Box3Helper( box, hex ) {
+
+	this.type = 'Box3Helper';
+
+	this.box = box;
+
+	var color = ( hex !== undefined ) ? hex : 0xffff00;
+
+	var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
+
+	var positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];
+
+	var geometry = new BufferGeometry();
+
+	geometry.setIndex( new BufferAttribute( indices, 1 ) );
+
+	geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
+
+	LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
+
+	this.geometry.computeBoundingSphere();
+
+}
+
+Box3Helper.prototype = Object.create( LineSegments.prototype );
+Box3Helper.prototype.constructor = Box3Helper;
+
+Box3Helper.prototype.updateMatrixWorld = function ( force ) {
+
+	var box = this.box;
+
+	if ( box.isEmpty() ) return;
+
+	box.getCenter( this.position );
+
+	box.getSize( this.scale );
+
+	this.scale.multiplyScalar( 0.5 );
+
+	Object3D.prototype.updateMatrixWorld.call( this, force );
+
+};
+
+/**
+ * @author WestLangley / http://github.com/WestLangley
+ */
+
+function PlaneHelper( plane, size, hex ) {
+
+	this.type = 'PlaneHelper';
+
+	this.plane = plane;
+
+	this.size = ( size === undefined ) ? 1 : size;
+
+	var color = ( hex !== undefined ) ? hex : 0xffff00;
+
+	var positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ];
+
+	var geometry = new BufferGeometry();
+	geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
+	geometry.computeBoundingSphere();
+
+	Line.call( this, geometry, new LineBasicMaterial( { color: color } ) );
+
+	//
+
+	var positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ];
+
+	var geometry2 = new BufferGeometry();
+	geometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
+	geometry2.computeBoundingSphere();
+
+	this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false } ) ) );
+
+}
+
+PlaneHelper.prototype = Object.create( Line.prototype );
+PlaneHelper.prototype.constructor = PlaneHelper;
+
+PlaneHelper.prototype.updateMatrixWorld = function ( force ) {
+
+	var scale = - this.plane.constant;
+
+	if ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter
+
+	this.scale.set( 0.5 * this.size, 0.5 * this.size, scale );
+
+	this.lookAt( this.plane.normal );
+
+	Object3D.prototype.updateMatrixWorld.call( this, force );
+
+};
+
+/**
+ * @author WestLangley / http://github.com/WestLangley
+ * @author zz85 / http://github.com/zz85
+ * @author bhouston / http://clara.io
+ *
+ * Creates an arrow for visualizing directions
+ *
+ * Parameters:
+ *  dir - Vector3
+ *  origin - Vector3
+ *  length - Number
+ *  color - color in hex value
+ *  headLength - Number
+ *  headWidth - Number
+ */
+
+var lineGeometry;
+var coneGeometry;
+
+function ArrowHelper( dir, origin, length, color, headLength, headWidth ) {
+
+	// dir is assumed to be normalized
+
+	Object3D.call( this );
+
+	if ( color === undefined ) color = 0xffff00;
+	if ( length === undefined ) length = 1;
+	if ( headLength === undefined ) headLength = 0.2 * length;
+	if ( headWidth === undefined ) headWidth = 0.2 * headLength;
+
+	if ( lineGeometry === undefined ) {
+
+		lineGeometry = new BufferGeometry();
+		lineGeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );
+
+		coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );
+		coneGeometry.translate( 0, - 0.5, 0 );
+
+	}
+
+	this.position.copy( origin );
+
+	this.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );
+	this.line.matrixAutoUpdate = false;
+	this.add( this.line );
+
+	this.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );
+	this.cone.matrixAutoUpdate = false;
+	this.add( this.cone );
+
+	this.setDirection( dir );
+	this.setLength( length, headLength, headWidth );
+
+}
+
+ArrowHelper.prototype = Object.create( Object3D.prototype );
+ArrowHelper.prototype.constructor = ArrowHelper;
+
+ArrowHelper.prototype.setDirection = ( function () {
+
+	var axis = new Vector3();
+	var radians;
+
+	return function setDirection( dir ) {
+
+		// dir is assumed to be normalized
+
+		if ( dir.y > 0.99999 ) {
+
+			this.quaternion.set( 0, 0, 0, 1 );
+
+		} else if ( dir.y < - 0.99999 ) {
+
+			this.quaternion.set( 1, 0, 0, 0 );
+
+		} else {
+
+			axis.set( dir.z, 0, - dir.x ).normalize();
+
+			radians = Math.acos( dir.y );
+
+			this.quaternion.setFromAxisAngle( axis, radians );
+
+		}
+
+	};
+
+}() );
+
+ArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {
+
+	if ( headLength === undefined ) headLength = 0.2 * length;
+	if ( headWidth === undefined ) headWidth = 0.2 * headLength;
+
+	this.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );
+	this.line.updateMatrix();
+
+	this.cone.scale.set( headWidth, headLength, headWidth );
+	this.cone.position.y = length;
+	this.cone.updateMatrix();
+
+};
+
+ArrowHelper.prototype.setColor = function ( color ) {
+
+	this.line.material.color.copy( color );
+	this.cone.material.color.copy( color );
+
+};
+
+/**
+ * @author sroucheray / http://sroucheray.org/
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function AxesHelper( size ) {
+
+	size = size || 1;
+
+	var vertices = [
+		0, 0, 0,	size, 0, 0,
+		0, 0, 0,	0, size, 0,
+		0, 0, 0,	0, 0, size
+	];
+
+	var colors = [
+		1, 0, 0,	1, 0.6, 0,
+		0, 1, 0,	0.6, 1, 0,
+		0, 0, 1,	0, 0.6, 1
+	];
+
+	var geometry = new BufferGeometry();
+	geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+	geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
+
+	var material = new LineBasicMaterial( { vertexColors: VertexColors } );
+
+	LineSegments.call( this, geometry, material );
+
+}
+
+AxesHelper.prototype = Object.create( LineSegments.prototype );
+AxesHelper.prototype.constructor = AxesHelper;
+
+/**
+ * @author zz85 https://github.com/zz85
+ *
+ * Centripetal CatmullRom Curve - which is useful for avoiding
+ * cusps and self-intersections in non-uniform catmull rom curves.
+ * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
+ *
+ * curve.type accepts centripetal(default), chordal and catmullrom
+ * curve.tension is used for catmullrom which defaults to 0.5
+ */
+
+
+/*
+Based on an optimized c++ solution in
+ - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
+ - http://ideone.com/NoEbVM
+
+This CubicPoly class could be used for reusing some variables and calculations,
+but for three.js curve use, it could be possible inlined and flatten into a single function call
+which can be placed in CurveUtils.
+*/
+
+function CubicPoly() {
+
+	var c0 = 0, c1 = 0, c2 = 0, c3 = 0;
+
+	/*
+	 * Compute coefficients for a cubic polynomial
+	 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
+	 * such that
+	 *   p(0) = x0, p(1) = x1
+	 *  and
+	 *   p'(0) = t0, p'(1) = t1.
+	 */
+	function init( x0, x1, t0, t1 ) {
+
+		c0 = x0;
+		c1 = t0;
+		c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
+		c3 = 2 * x0 - 2 * x1 + t0 + t1;
+
+	}
+
+	return {
+
+		initCatmullRom: function ( x0, x1, x2, x3, tension ) {
+
+			init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );
+
+		},
+
+		initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {
+
+			// compute tangents when parameterized in [t1,t2]
+			var t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
+			var t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;
+
+			// rescale tangents for parametrization in [0,1]
+			t1 *= dt1;
+			t2 *= dt1;
+
+			init( x1, x2, t1, t2 );
+
+		},
+
+		calc: function ( t ) {
+
+			var t2 = t * t;
+			var t3 = t2 * t;
+			return c0 + c1 * t + c2 * t2 + c3 * t3;
+
+		}
+
+	};
+
+}
+
+//
+
+var tmp = new Vector3();
+var px = new CubicPoly();
+var py = new CubicPoly();
+var pz = new CubicPoly();
+
+function CatmullRomCurve3( points, closed, curveType, tension ) {
+
+	Curve.call( this );
+
+	this.type = 'CatmullRomCurve3';
+
+	this.points = points || [];
+	this.closed = closed || false;
+	this.curveType = curveType || 'centripetal';
+	this.tension = tension || 0.5;
+
+}
+
+CatmullRomCurve3.prototype = Object.create( Curve.prototype );
+CatmullRomCurve3.prototype.constructor = CatmullRomCurve3;
+
+CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;
+
+CatmullRomCurve3.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector3();
+
+	var points = this.points;
+	var l = points.length;
+
+	var p = ( l - ( this.closed ? 0 : 1 ) ) * t;
+	var intPoint = Math.floor( p );
+	var weight = p - intPoint;
+
+	if ( this.closed ) {
+
+		intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / points.length ) + 1 ) * points.length;
+
+	} else if ( weight === 0 && intPoint === l - 1 ) {
+
+		intPoint = l - 2;
+		weight = 1;
+
+	}
+
+	var p0, p1, p2, p3; // 4 points
+
+	if ( this.closed || intPoint > 0 ) {
+
+		p0 = points[ ( intPoint - 1 ) % l ];
+
+	} else {
+
+		// extrapolate first point
+		tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
+		p0 = tmp;
+
+	}
+
+	p1 = points[ intPoint % l ];
+	p2 = points[ ( intPoint + 1 ) % l ];
+
+	if ( this.closed || intPoint + 2 < l ) {
+
+		p3 = points[ ( intPoint + 2 ) % l ];
+
+	} else {
+
+		// extrapolate last point
+		tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );
+		p3 = tmp;
+
+	}
+
+	if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {
+
+		// init Centripetal / Chordal Catmull-Rom
+		var pow = this.curveType === 'chordal' ? 0.5 : 0.25;
+		var dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
+		var dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
+		var dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );
+
+		// safety check for repeated points
+		if ( dt1 < 1e-4 ) dt1 = 1.0;
+		if ( dt0 < 1e-4 ) dt0 = dt1;
+		if ( dt2 < 1e-4 ) dt2 = dt1;
+
+		px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
+		py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
+		pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );
+
+	} else if ( this.curveType === 'catmullrom' ) {
+
+		px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );
+		py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );
+		pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );
+
+	}
+
+	point.set(
+		px.calc( weight ),
+		py.calc( weight ),
+		pz.calc( weight )
+	);
+
+	return point;
+
+};
+
+CatmullRomCurve3.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.points = [];
+
+	for ( var i = 0, l = source.points.length; i < l; i ++ ) {
+
+		var point = source.points[ i ];
+
+		this.points.push( point.clone() );
+
+	}
+
+	this.closed = source.closed;
+	this.curveType = source.curveType;
+	this.tension = source.tension;
+
+	return this;
+
+};
+
+function CubicBezierCurve3( v0, v1, v2, v3 ) {
+
+	Curve.call( this );
+
+	this.type = 'CubicBezierCurve3';
+
+	this.v0 = v0 || new Vector3();
+	this.v1 = v1 || new Vector3();
+	this.v2 = v2 || new Vector3();
+	this.v3 = v3 || new Vector3();
+
+}
+
+CubicBezierCurve3.prototype = Object.create( Curve.prototype );
+CubicBezierCurve3.prototype.constructor = CubicBezierCurve3;
+
+CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;
+
+CubicBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector3();
+
+	var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
+
+	point.set(
+		CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
+		CubicBezier( t, v0.y, v1.y, v2.y, v3.y ),
+		CubicBezier( t, v0.z, v1.z, v2.z, v3.z )
+	);
+
+	return point;
+
+};
+
+CubicBezierCurve3.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.v0.copy( source.v0 );
+	this.v1.copy( source.v1 );
+	this.v2.copy( source.v2 );
+	this.v3.copy( source.v3 );
+
+	return this;
+
+};
+
+function QuadraticBezierCurve3( v0, v1, v2 ) {
+
+	Curve.call( this );
+
+	this.type = 'QuadraticBezierCurve3';
+
+	this.v0 = v0 || new Vector3();
+	this.v1 = v1 || new Vector3();
+	this.v2 = v2 || new Vector3();
+
+}
+
+QuadraticBezierCurve3.prototype = Object.create( Curve.prototype );
+QuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3;
+
+QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;
+
+QuadraticBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector3();
+
+	var v0 = this.v0, v1 = this.v1, v2 = this.v2;
+
+	point.set(
+		QuadraticBezier( t, v0.x, v1.x, v2.x ),
+		QuadraticBezier( t, v0.y, v1.y, v2.y ),
+		QuadraticBezier( t, v0.z, v1.z, v2.z )
+	);
+
+	return point;
+
+};
+
+QuadraticBezierCurve3.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.v0.copy( source.v0 );
+	this.v1.copy( source.v1 );
+	this.v2.copy( source.v2 );
+
+	return this;
+
+};
+
+function LineCurve3( v1, v2 ) {
+
+	Curve.call( this );
+
+	this.type = 'LineCurve3';
+
+	this.v1 = v1 || new Vector3();
+	this.v2 = v2 || new Vector3();
+
+}
+
+LineCurve3.prototype = Object.create( Curve.prototype );
+LineCurve3.prototype.constructor = LineCurve3;
+
+LineCurve3.prototype.isLineCurve3 = true;
+
+LineCurve3.prototype.getPoint = function ( t, optionalTarget ) {
+
+	var point = optionalTarget || new Vector3();
+
+	if ( t === 1 ) {
+
+		point.copy( this.v2 );
+
+	} else {
+
+		point.copy( this.v2 ).sub( this.v1 );
+		point.multiplyScalar( t ).add( this.v1 );
+
+	}
+
+	return point;
+
+};
+
+// Line curve is linear, so we can overwrite default getPointAt
+
+LineCurve3.prototype.getPointAt = function ( u, optionalTarget ) {
+
+	return this.getPoint( u, optionalTarget );
+
+};
+
+LineCurve3.prototype.copy = function ( source ) {
+
+	Curve.prototype.copy.call( this, source );
+
+	this.v1.copy( source.v1 );
+	this.v2.copy( source.v2 );
+
+	return this;
+
+};
+
+function ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
+
+	EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
+
+	this.type = 'ArcCurve';
+
+}
+
+ArcCurve.prototype = Object.create( EllipseCurve.prototype );
+ArcCurve.prototype.constructor = ArcCurve;
+
+ArcCurve.prototype.isArcCurve = true;
+
+/**
+ * @author alteredq / http://alteredqualia.com/
+ */
+
+var SceneUtils = {
+
+	createMultiMaterialObject: function ( geometry, materials ) {
+
+		var group = new Group();
+
+		for ( var i = 0, l = materials.length; i < l; i ++ ) {
+
+			group.add( new Mesh( geometry, materials[ i ] ) );
+
+		}
+
+		return group;
+
+	},
+
+	detach: function ( child, parent, scene ) {
+
+		child.applyMatrix( parent.matrixWorld );
+		parent.remove( child );
+		scene.add( child );
+
+	},
+
+	attach: function ( child, scene, parent ) {
+
+		child.applyMatrix( new Matrix4().getInverse( parent.matrixWorld ) );
+
+		scene.remove( child );
+		parent.add( child );
+
+	}
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+function Face4( a, b, c, d, normal, color, materialIndex ) {
+
+	console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );
+	return new Face3( a, b, c, normal, color, materialIndex );
+
+}
+
+var LineStrip = 0;
+
+var LinePieces = 1;
+
+function MeshFaceMaterial( materials ) {
+
+	console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );
+	return materials;
+
+}
+
+function MultiMaterial( materials ) {
+
+	if ( materials === undefined ) materials = [];
+
+	console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );
+	materials.isMultiMaterial = true;
+	materials.materials = materials;
+	materials.clone = function () {
+
+		return materials.slice();
+
+	};
+	return materials;
+
+}
+
+function PointCloud( geometry, material ) {
+
+	console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );
+	return new Points( geometry, material );
+
+}
+
+function Particle( material ) {
+
+	console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );
+	return new Sprite( material );
+
+}
+
+function ParticleSystem( geometry, material ) {
+
+	console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );
+	return new Points( geometry, material );
+
+}
+
+function PointCloudMaterial( parameters ) {
+
+	console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );
+	return new PointsMaterial( parameters );
+
+}
+
+function ParticleBasicMaterial( parameters ) {
+
+	console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );
+	return new PointsMaterial( parameters );
+
+}
+
+function ParticleSystemMaterial( parameters ) {
+
+	console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );
+	return new PointsMaterial( parameters );
+
+}
+
+function Vertex( x, y, z ) {
+
+	console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );
+	return new Vector3( x, y, z );
+
+}
+
+//
+
+function DynamicBufferAttribute( array, itemSize ) {
+
+	console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );
+	return new BufferAttribute( array, itemSize ).setDynamic( true );
+
+}
+
+function Int8Attribute( array, itemSize ) {
+
+	console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );
+	return new Int8BufferAttribute( array, itemSize );
+
+}
+
+function Uint8Attribute( array, itemSize ) {
+
+	console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );
+	return new Uint8BufferAttribute( array, itemSize );
+
+}
+
+function Uint8ClampedAttribute( array, itemSize ) {
+
+	console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );
+	return new Uint8ClampedBufferAttribute( array, itemSize );
+
+}
+
+function Int16Attribute( array, itemSize ) {
+
+	console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );
+	return new Int16BufferAttribute( array, itemSize );
+
+}
+
+function Uint16Attribute( array, itemSize ) {
+
+	console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );
+	return new Uint16BufferAttribute( array, itemSize );
+
+}
+
+function Int32Attribute( array, itemSize ) {
+
+	console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );
+	return new Int32BufferAttribute( array, itemSize );
+
+}
+
+function Uint32Attribute( array, itemSize ) {
+
+	console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );
+	return new Uint32BufferAttribute( array, itemSize );
+
+}
+
+function Float32Attribute( array, itemSize ) {
+
+	console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );
+	return new Float32BufferAttribute( array, itemSize );
+
+}
+
+function Float64Attribute( array, itemSize ) {
+
+	console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );
+	return new Float64BufferAttribute( array, itemSize );
+
+}
+
+//
+
+Curve.create = function ( construct, getPoint ) {
+
+	console.log( 'THREE.Curve.create() has been deprecated' );
+
+	construct.prototype = Object.create( Curve.prototype );
+	construct.prototype.constructor = construct;
+	construct.prototype.getPoint = getPoint;
+
+	return construct;
+
+};
+
+//
+
+Object.assign( CurvePath.prototype, {
+
+	createPointsGeometry: function ( divisions ) {
+
+		console.warn( 'THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
+
+		// generate geometry from path points (for Line or Points objects)
+
+		var pts = this.getPoints( divisions );
+		return this.createGeometry( pts );
+
+	},
+
+	createSpacedPointsGeometry: function ( divisions ) {
+
+		console.warn( 'THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
+
+		// generate geometry from equidistant sampling along the path
+
+		var pts = this.getSpacedPoints( divisions );
+		return this.createGeometry( pts );
+
+	},
+
+	createGeometry: function ( points ) {
+
+		console.warn( 'THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
+
+		var geometry = new Geometry();
+
+		for ( var i = 0, l = points.length; i < l; i ++ ) {
+
+			var point = points[ i ];
+			geometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );
+
+		}
+
+		return geometry;
+
+	}
+
+} );
+
+//
+
+Object.assign( Path.prototype, {
+
+	fromPoints: function ( points ) {
+
+		console.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' );
+		this.setFromPoints( points );
+
+	}
+
+} );
+
+//
+
+function ClosedSplineCurve3( points ) {
+
+	console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );
+
+	CatmullRomCurve3.call( this, points );
+	this.type = 'catmullrom';
+	this.closed = true;
+
+}
+
+ClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );
+
+//
+
+function SplineCurve3( points ) {
+
+	console.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );
+
+	CatmullRomCurve3.call( this, points );
+	this.type = 'catmullrom';
+
+}
+
+SplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );
+
+//
+
+function Spline( points ) {
+
+	console.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' );
+
+	CatmullRomCurve3.call( this, points );
+	this.type = 'catmullrom';
+
+}
+
+Spline.prototype = Object.create( CatmullRomCurve3.prototype );
+
+Object.assign( Spline.prototype, {
+
+	initFromArray: function ( /* a */ ) {
+
+		console.error( 'THREE.Spline: .initFromArray() has been removed.' );
+
+	},
+	getControlPointsArray: function ( /* optionalTarget */ ) {
+
+		console.error( 'THREE.Spline: .getControlPointsArray() has been removed.' );
+
+	},
+	reparametrizeByArcLength: function ( /* samplingCoef */ ) {
+
+		console.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' );
+
+	}
+
+} );
+
+//
+
+function AxisHelper( size ) {
+
+	console.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' );
+	return new AxesHelper( size );
+
+}
+
+function BoundingBoxHelper( object, color ) {
+
+	console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );
+	return new BoxHelper( object, color );
+
+}
+
+function EdgesHelper( object, hex ) {
+
+	console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );
+	return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );
+
+}
+
+GridHelper.prototype.setColors = function () {
+
+	console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );
+
+};
+
+SkeletonHelper.prototype.update = function () {
+
+	console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );
+
+};
+
+function WireframeHelper( object, hex ) {
+
+	console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );
+	return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );
+
+}
+
+//
+
+function XHRLoader( manager ) {
+
+	console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );
+	return new FileLoader( manager );
+
+}
+
+function BinaryTextureLoader( manager ) {
+
+	console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );
+	return new DataTextureLoader( manager );
+
+}
+
+//
+
+Object.assign( Box2.prototype, {
+
+	center: function ( optionalTarget ) {
+
+		console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );
+		return this.getCenter( optionalTarget );
+
+	},
+	empty: function () {
+
+		console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );
+		return this.isEmpty();
+
+	},
+	isIntersectionBox: function ( box ) {
+
+		console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );
+		return this.intersectsBox( box );
+
+	},
+	size: function ( optionalTarget ) {
+
+		console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );
+		return this.getSize( optionalTarget );
+
+	}
+} );
+
+Object.assign( Box3.prototype, {
+
+	center: function ( optionalTarget ) {
+
+		console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );
+		return this.getCenter( optionalTarget );
+
+	},
+	empty: function () {
+
+		console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );
+		return this.isEmpty();
+
+	},
+	isIntersectionBox: function ( box ) {
+
+		console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );
+		return this.intersectsBox( box );
+
+	},
+	isIntersectionSphere: function ( sphere ) {
+
+		console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
+		return this.intersectsSphere( sphere );
+
+	},
+	size: function ( optionalTarget ) {
+
+		console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );
+		return this.getSize( optionalTarget );
+
+	}
+} );
+
+Line3.prototype.center = function ( optionalTarget ) {
+
+	console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );
+	return this.getCenter( optionalTarget );
+
+};
+
+Object.assign( _Math, {
+
+	random16: function () {
+
+		console.warn( 'THREE.Math: .random16() has been deprecated. Use Math.random() instead.' );
+		return Math.random();
+
+	},
+
+	nearestPowerOfTwo: function ( value ) {
+
+		console.warn( 'THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().' );
+		return _Math.floorPowerOfTwo( value );
+
+	},
+
+	nextPowerOfTwo: function ( value ) {
+
+		console.warn( 'THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().' );
+		return _Math.ceilPowerOfTwo( value );
+
+	}
+
+} );
+
+Object.assign( Matrix3.prototype, {
+
+	flattenToArrayOffset: function ( array, offset ) {
+
+		console.warn( "THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
+		return this.toArray( array, offset );
+
+	},
+	multiplyVector3: function ( vector ) {
+
+		console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );
+		return vector.applyMatrix3( this );
+
+	},
+	multiplyVector3Array: function ( /* a */ ) {
+
+		console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' );
+
+	},
+	applyToBuffer: function ( buffer /*, offset, length */ ) {
+
+		console.warn( 'THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
+		return this.applyToBufferAttribute( buffer );
+
+	},
+	applyToVector3Array: function ( /* array, offset, length */ ) {
+
+		console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );
+
+	}
+
+} );
+
+Object.assign( Matrix4.prototype, {
+
+	extractPosition: function ( m ) {
+
+		console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );
+		return this.copyPosition( m );
+
+	},
+	flattenToArrayOffset: function ( array, offset ) {
+
+		console.warn( "THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
+		return this.toArray( array, offset );
+
+	},
+	getPosition: function () {
+
+		var v1;
+
+		return function getPosition() {
+
+			if ( v1 === undefined ) v1 = new Vector3();
+			console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );
+			return v1.setFromMatrixColumn( this, 3 );
+
+		};
+
+	}(),
+	setRotationFromQuaternion: function ( q ) {
+
+		console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );
+		return this.makeRotationFromQuaternion( q );
+
+	},
+	multiplyToArray: function () {
+
+		console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );
+
+	},
+	multiplyVector3: function ( vector ) {
+
+		console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
+		return vector.applyMatrix4( this );
+
+	},
+	multiplyVector4: function ( vector ) {
+
+		console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
+		return vector.applyMatrix4( this );
+
+	},
+	multiplyVector3Array: function ( /* a */ ) {
+
+		console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' );
+
+	},
+	rotateAxis: function ( v ) {
+
+		console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );
+		v.transformDirection( this );
+
+	},
+	crossVector: function ( vector ) {
+
+		console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
+		return vector.applyMatrix4( this );
+
+	},
+	translate: function () {
+
+		console.error( 'THREE.Matrix4: .translate() has been removed.' );
+
+	},
+	rotateX: function () {
+
+		console.error( 'THREE.Matrix4: .rotateX() has been removed.' );
+
+	},
+	rotateY: function () {
+
+		console.error( 'THREE.Matrix4: .rotateY() has been removed.' );
+
+	},
+	rotateZ: function () {
+
+		console.error( 'THREE.Matrix4: .rotateZ() has been removed.' );
+
+	},
+	rotateByAxis: function () {
+
+		console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );
+
+	},
+	applyToBuffer: function ( buffer /*, offset, length */ ) {
+
+		console.warn( 'THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
+		return this.applyToBufferAttribute( buffer );
+
+	},
+	applyToVector3Array: function ( /* array, offset, length */ ) {
+
+		console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );
+
+	},
+	makeFrustum: function ( left, right, bottom, top, near, far ) {
+
+		console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );
+		return this.makePerspective( left, right, top, bottom, near, far );
+
+	}
+
+} );
+
+Plane.prototype.isIntersectionLine = function ( line ) {
+
+	console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );
+	return this.intersectsLine( line );
+
+};
+
+Quaternion.prototype.multiplyVector3 = function ( vector ) {
+
+	console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
+	return vector.applyQuaternion( this );
+
+};
+
+Object.assign( Ray.prototype, {
+
+	isIntersectionBox: function ( box ) {
+
+		console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );
+		return this.intersectsBox( box );
+
+	},
+	isIntersectionPlane: function ( plane ) {
+
+		console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );
+		return this.intersectsPlane( plane );
+
+	},
+	isIntersectionSphere: function ( sphere ) {
+
+		console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
+		return this.intersectsSphere( sphere );
+
+	}
+
+} );
+
+Object.assign( Shape.prototype, {
+
+	extractAllPoints: function ( divisions ) {
+
+		console.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' );
+		return this.extractPoints( divisions );
+
+	},
+	extrude: function ( options ) {
+
+		console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );
+		return new ExtrudeGeometry( this, options );
+
+	},
+	makeGeometry: function ( options ) {
+
+		console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );
+		return new ShapeGeometry( this, options );
+
+	}
+
+} );
+
+Object.assign( Vector2.prototype, {
+
+	fromAttribute: function ( attribute, index, offset ) {
+
+		console.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );
+		return this.fromBufferAttribute( attribute, index, offset );
+
+	},
+	distanceToManhattan: function ( v ) {
+
+		console.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
+		return this.manhattanDistanceTo( v );
+
+	},
+	lengthManhattan: function () {
+
+		console.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' );
+		return this.manhattanLength();
+
+	}
+
+} );
+
+Object.assign( Vector3.prototype, {
+
+	setEulerFromRotationMatrix: function () {
+
+		console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );
+
+	},
+	setEulerFromQuaternion: function () {
+
+		console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );
+
+	},
+	getPositionFromMatrix: function ( m ) {
+
+		console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );
+		return this.setFromMatrixPosition( m );
+
+	},
+	getScaleFromMatrix: function ( m ) {
+
+		console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );
+		return this.setFromMatrixScale( m );
+
+	},
+	getColumnFromMatrix: function ( index, matrix ) {
+
+		console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );
+		return this.setFromMatrixColumn( matrix, index );
+
+	},
+	applyProjection: function ( m ) {
+
+		console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );
+		return this.applyMatrix4( m );
+
+	},
+	fromAttribute: function ( attribute, index, offset ) {
+
+		console.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );
+		return this.fromBufferAttribute( attribute, index, offset );
+
+	},
+	distanceToManhattan: function ( v ) {
+
+		console.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
+		return this.manhattanDistanceTo( v );
+
+	},
+	lengthManhattan: function () {
+
+		console.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' );
+		return this.manhattanLength();
+
+	}
+
+} );
+
+Object.assign( Vector4.prototype, {
+
+	fromAttribute: function ( attribute, index, offset ) {
+
+		console.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );
+		return this.fromBufferAttribute( attribute, index, offset );
+
+	},
+	lengthManhattan: function () {
+
+		console.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' );
+		return this.manhattanLength();
+
+	}
+
+} );
+
+//
+
+Geometry.prototype.computeTangents = function () {
+
+	console.warn( 'THREE.Geometry: .computeTangents() has been removed.' );
+
+};
+
+Object.assign( Object3D.prototype, {
+
+	getChildByName: function ( name ) {
+
+		console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );
+		return this.getObjectByName( name );
+
+	},
+	renderDepth: function () {
+
+		console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );
+
+	},
+	translate: function ( distance, axis ) {
+
+		console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );
+		return this.translateOnAxis( axis, distance );
+
+	}
+
+} );
+
+Object.defineProperties( Object3D.prototype, {
+
+	eulerOrder: {
+		get: function () {
+
+			console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
+			return this.rotation.order;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
+			this.rotation.order = value;
+
+		}
+	},
+	useQuaternion: {
+		get: function () {
+
+			console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
+
+		},
+		set: function () {
+
+			console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
+
+		}
+	}
+
+} );
+
+Object.defineProperties( LOD.prototype, {
+
+	objects: {
+		get: function () {
+
+			console.warn( 'THREE.LOD: .objects has been renamed to .levels.' );
+			return this.levels;
+
+		}
+	}
+
+} );
+
+Object.defineProperty( Skeleton.prototype, 'useVertexTexture', {
+
+	get: function () {
+
+		console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );
+
+	},
+	set: function () {
+
+		console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );
+
+	}
+
+} );
+
+Object.defineProperty( Curve.prototype, '__arcLengthDivisions', {
+
+	get: function () {
+
+		console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
+		return this.arcLengthDivisions;
+
+	},
+	set: function ( value ) {
+
+		console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
+		this.arcLengthDivisions = value;
+
+	}
+
+} );
+
+//
+
+PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {
+
+	console.warn( "THREE.PerspectiveCamera.setLens is deprecated. " +
+			"Use .setFocalLength and .filmGauge for a photographic setup." );
+
+	if ( filmGauge !== undefined ) this.filmGauge = filmGauge;
+	this.setFocalLength( focalLength );
+
+};
+
+//
+
+Object.defineProperties( Light.prototype, {
+	onlyShadow: {
+		set: function () {
+
+			console.warn( 'THREE.Light: .onlyShadow has been removed.' );
+
+		}
+	},
+	shadowCameraFov: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );
+			this.shadow.camera.fov = value;
+
+		}
+	},
+	shadowCameraLeft: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );
+			this.shadow.camera.left = value;
+
+		}
+	},
+	shadowCameraRight: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );
+			this.shadow.camera.right = value;
+
+		}
+	},
+	shadowCameraTop: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );
+			this.shadow.camera.top = value;
+
+		}
+	},
+	shadowCameraBottom: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );
+			this.shadow.camera.bottom = value;
+
+		}
+	},
+	shadowCameraNear: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );
+			this.shadow.camera.near = value;
+
+		}
+	},
+	shadowCameraFar: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );
+			this.shadow.camera.far = value;
+
+		}
+	},
+	shadowCameraVisible: {
+		set: function () {
+
+			console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );
+
+		}
+	},
+	shadowBias: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );
+			this.shadow.bias = value;
+
+		}
+	},
+	shadowDarkness: {
+		set: function () {
+
+			console.warn( 'THREE.Light: .shadowDarkness has been removed.' );
+
+		}
+	},
+	shadowMapWidth: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );
+			this.shadow.mapSize.width = value;
+
+		}
+	},
+	shadowMapHeight: {
+		set: function ( value ) {
+
+			console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );
+			this.shadow.mapSize.height = value;
+
+		}
+	}
+} );
+
+//
+
+Object.defineProperties( BufferAttribute.prototype, {
+
+	length: {
+		get: function () {
+
+			console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );
+			return this.array.length;
+
+		}
+	}
+
+} );
+
+Object.assign( BufferGeometry.prototype, {
+
+	addIndex: function ( index ) {
+
+		console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );
+		this.setIndex( index );
+
+	},
+	addDrawCall: function ( start, count, indexOffset ) {
+
+		if ( indexOffset !== undefined ) {
+
+			console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );
+
+		}
+		console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );
+		this.addGroup( start, count );
+
+	},
+	clearDrawCalls: function () {
+
+		console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );
+		this.clearGroups();
+
+	},
+	computeTangents: function () {
+
+		console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );
+
+	},
+	computeOffsets: function () {
+
+		console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );
+
+	}
+
+} );
+
+Object.defineProperties( BufferGeometry.prototype, {
+
+	drawcalls: {
+		get: function () {
+
+			console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );
+			return this.groups;
+
+		}
+	},
+	offsets: {
+		get: function () {
+
+			console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );
+			return this.groups;
+
+		}
+	}
+
+} );
+
+//
+
+Object.defineProperties( Uniform.prototype, {
+
+	dynamic: {
+		set: function () {
+
+			console.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );
+
+		}
+	},
+	onUpdate: {
+		value: function () {
+
+			console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );
+			return this;
+
+		}
+	}
+
+} );
+
+//
+
+Object.defineProperties( Material.prototype, {
+
+	wrapAround: {
+		get: function () {
+
+			console.warn( 'THREE.Material: .wrapAround has been removed.' );
+
+		},
+		set: function () {
+
+			console.warn( 'THREE.Material: .wrapAround has been removed.' );
+
+		}
+	},
+	wrapRGB: {
+		get: function () {
+
+			console.warn( 'THREE.Material: .wrapRGB has been removed.' );
+			return new Color();
+
+		}
+	},
+
+	shading: {
+		get: function () {
+
+			console.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
+			this.flatShading = ( value === FlatShading );
+
+		}
+	}
+
+} );
+
+Object.defineProperties( MeshPhongMaterial.prototype, {
+
+	metal: {
+		get: function () {
+
+			console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );
+			return false;
+
+		},
+		set: function () {
+
+			console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );
+
+		}
+	}
+
+} );
+
+Object.defineProperties( ShaderMaterial.prototype, {
+
+	derivatives: {
+		get: function () {
+
+			console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
+			return this.extensions.derivatives;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
+			this.extensions.derivatives = value;
+
+		}
+	}
+
+} );
+
+//
+
+Object.assign( WebGLRenderer.prototype, {
+
+	getCurrentRenderTarget: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );
+		return this.getRenderTarget();
+
+	},
+
+	getMaxAnisotropy: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' );
+		return this.capabilities.getMaxAnisotropy();
+
+	},
+
+	getPrecision: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' );
+		return this.capabilities.precision;
+
+	},
+
+	resetGLState: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' );
+		return this.state.reset();
+
+	},
+
+	supportsFloatTextures: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' );
+		return this.extensions.get( 'OES_texture_float' );
+
+	},
+	supportsHalfFloatTextures: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' );
+		return this.extensions.get( 'OES_texture_half_float' );
+
+	},
+	supportsStandardDerivatives: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' );
+		return this.extensions.get( 'OES_standard_derivatives' );
+
+	},
+	supportsCompressedTextureS3TC: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' );
+		return this.extensions.get( 'WEBGL_compressed_texture_s3tc' );
+
+	},
+	supportsCompressedTexturePVRTC: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' );
+		return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );
+
+	},
+	supportsBlendMinMax: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' );
+		return this.extensions.get( 'EXT_blend_minmax' );
+
+	},
+	supportsVertexTextures: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );
+		return this.capabilities.vertexTextures;
+
+	},
+	supportsInstancedArrays: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' );
+		return this.extensions.get( 'ANGLE_instanced_arrays' );
+
+	},
+	enableScissorTest: function ( boolean ) {
+
+		console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );
+		this.setScissorTest( boolean );
+
+	},
+	initMaterial: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );
+
+	},
+	addPrePlugin: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );
+
+	},
+	addPostPlugin: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );
+
+	},
+	updateShadowMap: function () {
+
+		console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );
+
+	}
+
+} );
+
+Object.defineProperties( WebGLRenderer.prototype, {
+
+	shadowMapEnabled: {
+		get: function () {
+
+			return this.shadowMap.enabled;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );
+			this.shadowMap.enabled = value;
+
+		}
+	},
+	shadowMapType: {
+		get: function () {
+
+			return this.shadowMap.type;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );
+			this.shadowMap.type = value;
+
+		}
+	},
+	shadowMapCullFace: {
+		get: function () {
+
+			return this.shadowMap.cullFace;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace is now .shadowMap.cullFace.' );
+			this.shadowMap.cullFace = value;
+
+		}
+	}
+} );
+
+Object.defineProperties( WebGLShadowMap.prototype, {
+
+	cullFace: {
+		get: function () {
+
+			return this.renderReverseSided ? CullFaceFront : CullFaceBack;
+
+		},
+		set: function ( cullFace ) {
+
+			var value = ( cullFace !== CullFaceBack );
+			console.warn( "WebGLRenderer: .shadowMap.cullFace is deprecated. Set .shadowMap.renderReverseSided to " + value + "." );
+			this.renderReverseSided = value;
+
+		}
+	}
+
+} );
+
+//
+
+Object.defineProperties( WebGLRenderTarget.prototype, {
+
+	wrapS: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
+			return this.texture.wrapS;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
+			this.texture.wrapS = value;
+
+		}
+	},
+	wrapT: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
+			return this.texture.wrapT;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
+			this.texture.wrapT = value;
+
+		}
+	},
+	magFilter: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
+			return this.texture.magFilter;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
+			this.texture.magFilter = value;
+
+		}
+	},
+	minFilter: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
+			return this.texture.minFilter;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
+			this.texture.minFilter = value;
+
+		}
+	},
+	anisotropy: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
+			return this.texture.anisotropy;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
+			this.texture.anisotropy = value;
+
+		}
+	},
+	offset: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
+			return this.texture.offset;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
+			this.texture.offset = value;
+
+		}
+	},
+	repeat: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
+			return this.texture.repeat;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
+			this.texture.repeat = value;
+
+		}
+	},
+	format: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
+			return this.texture.format;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
+			this.texture.format = value;
+
+		}
+	},
+	type: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
+			return this.texture.type;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
+			this.texture.type = value;
+
+		}
+	},
+	generateMipmaps: {
+		get: function () {
+
+			console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
+			return this.texture.generateMipmaps;
+
+		},
+		set: function ( value ) {
+
+			console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
+			this.texture.generateMipmaps = value;
+
+		}
+	}
+
+} );
+
+//
+
+Audio.prototype.load = function ( file ) {
+
+	console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );
+	var scope = this;
+	var audioLoader = new AudioLoader();
+	audioLoader.load( file, function ( buffer ) {
+
+		scope.setBuffer( buffer );
+
+	} );
+	return this;
+
+};
+
+AudioAnalyser.prototype.getData = function () {
+
+	console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );
+	return this.getFrequencyData();
+
+};
+
+//
+
+CubeCamera.prototype.updateCubeMap = function ( renderer, scene ) {
+
+	console.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' );
+	return this.update( renderer, scene );
+
+};
+
+//
+
+var GeometryUtils = {
+
+	merge: function ( geometry1, geometry2, materialIndexOffset ) {
+
+		console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );
+		var matrix;
+
+		if ( geometry2.isMesh ) {
+
+			geometry2.matrixAutoUpdate && geometry2.updateMatrix();
+
+			matrix = geometry2.matrix;
+			geometry2 = geometry2.geometry;
+
+		}
+
+		geometry1.merge( geometry2, matrix, materialIndexOffset );
+
+	},
+
+	center: function ( geometry ) {
+
+		console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );
+		return geometry.center();
+
+	}
+
+};
+
+var ImageUtils = {
+
+	crossOrigin: undefined,
+
+	loadTexture: function ( url, mapping, onLoad, onError ) {
+
+		console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );
+
+		var loader = new TextureLoader();
+		loader.setCrossOrigin( this.crossOrigin );
+
+		var texture = loader.load( url, onLoad, undefined, onError );
+
+		if ( mapping ) texture.mapping = mapping;
+
+		return texture;
+
+	},
+
+	loadTextureCube: function ( urls, mapping, onLoad, onError ) {
+
+		console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );
+
+		var loader = new CubeTextureLoader();
+		loader.setCrossOrigin( this.crossOrigin );
+
+		var texture = loader.load( urls, onLoad, undefined, onError );
+
+		if ( mapping ) texture.mapping = mapping;
+
+		return texture;
+
+	},
+
+	loadCompressedTexture: function () {
+
+		console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );
+
+	},
+
+	loadCompressedTextureCube: function () {
+
+		console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );
+
+	}
+
+};
+
+//
+
+function Projector() {
+
+	console.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' );
+
+	this.projectVector = function ( vector, camera ) {
+
+		console.warn( 'THREE.Projector: .projectVector() is now vector.project().' );
+		vector.project( camera );
+
+	};
+
+	this.unprojectVector = function ( vector, camera ) {
+
+		console.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );
+		vector.unproject( camera );
+
+	};
+
+	this.pickingRay = function () {
+
+		console.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );
+
+	};
+
+}
+
+//
+
+function CanvasRenderer() {
+
+	console.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' );
+
+	this.domElement = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
+	this.clear = function () {};
+	this.render = function () {};
+	this.setClearColor = function () {};
+	this.setSize = function () {};
+
+}
+
+
+var THREE = Object.freeze({
+	WebGLRenderTargetCube: WebGLRenderTargetCube,
+	WebGLRenderTarget: WebGLRenderTarget,
+	WebGLRenderer: WebGLRenderer,
+	ShaderLib: ShaderLib,
+	UniformsLib: UniformsLib,
+	UniformsUtils: UniformsUtils,
+	ShaderChunk: ShaderChunk,
+	FogExp2: FogExp2,
+	Fog: Fog,
+	Scene: Scene,
+	LensFlare: LensFlare,
+	Sprite: Sprite,
+	LOD: LOD,
+	SkinnedMesh: SkinnedMesh,
+	Skeleton: Skeleton,
+	Bone: Bone,
+	Mesh: Mesh,
+	LineSegments: LineSegments,
+	LineLoop: LineLoop,
+	Line: Line,
+	Points: Points,
+	Group: Group,
+	VideoTexture: VideoTexture,
+	DataTexture: DataTexture,
+	CompressedTexture: CompressedTexture,
+	CubeTexture: CubeTexture,
+	CanvasTexture: CanvasTexture,
+	DepthTexture: DepthTexture,
+	Texture: Texture,
+	CompressedTextureLoader: CompressedTextureLoader,
+	DataTextureLoader: DataTextureLoader,
+	CubeTextureLoader: CubeTextureLoader,
+	TextureLoader: TextureLoader,
+	ObjectLoader: ObjectLoader,
+	MaterialLoader: MaterialLoader,
+	BufferGeometryLoader: BufferGeometryLoader,
+	DefaultLoadingManager: DefaultLoadingManager,
+	LoadingManager: LoadingManager,
+	JSONLoader: JSONLoader,
+	ImageLoader: ImageLoader,
+	FontLoader: FontLoader,
+	FileLoader: FileLoader,
+	Loader: Loader,
+	Cache: Cache,
+	AudioLoader: AudioLoader,
+	SpotLightShadow: SpotLightShadow,
+	SpotLight: SpotLight,
+	PointLight: PointLight,
+	RectAreaLight: RectAreaLight,
+	HemisphereLight: HemisphereLight,
+	DirectionalLightShadow: DirectionalLightShadow,
+	DirectionalLight: DirectionalLight,
+	AmbientLight: AmbientLight,
+	LightShadow: LightShadow,
+	Light: Light,
+	StereoCamera: StereoCamera,
+	PerspectiveCamera: PerspectiveCamera,
+	OrthographicCamera: OrthographicCamera,
+	CubeCamera: CubeCamera,
+	ArrayCamera: ArrayCamera,
+	Camera: Camera,
+	AudioListener: AudioListener,
+	PositionalAudio: PositionalAudio,
+	AudioContext: AudioContext,
+	AudioAnalyser: AudioAnalyser,
+	Audio: Audio,
+	VectorKeyframeTrack: VectorKeyframeTrack,
+	StringKeyframeTrack: StringKeyframeTrack,
+	QuaternionKeyframeTrack: QuaternionKeyframeTrack,
+	NumberKeyframeTrack: NumberKeyframeTrack,
+	ColorKeyframeTrack: ColorKeyframeTrack,
+	BooleanKeyframeTrack: BooleanKeyframeTrack,
+	PropertyMixer: PropertyMixer,
+	PropertyBinding: PropertyBinding,
+	KeyframeTrack: KeyframeTrack,
+	AnimationUtils: AnimationUtils,
+	AnimationObjectGroup: AnimationObjectGroup,
+	AnimationMixer: AnimationMixer,
+	AnimationClip: AnimationClip,
+	Uniform: Uniform,
+	InstancedBufferGeometry: InstancedBufferGeometry,
+	BufferGeometry: BufferGeometry,
+	Geometry: Geometry,
+	InterleavedBufferAttribute: InterleavedBufferAttribute,
+	InstancedInterleavedBuffer: InstancedInterleavedBuffer,
+	InterleavedBuffer: InterleavedBuffer,
+	InstancedBufferAttribute: InstancedBufferAttribute,
+	Face3: Face3,
+	Object3D: Object3D,
+	Raycaster: Raycaster,
+	Layers: Layers,
+	EventDispatcher: EventDispatcher,
+	Clock: Clock,
+	QuaternionLinearInterpolant: QuaternionLinearInterpolant,
+	LinearInterpolant: LinearInterpolant,
+	DiscreteInterpolant: DiscreteInterpolant,
+	CubicInterpolant: CubicInterpolant,
+	Interpolant: Interpolant,
+	Triangle: Triangle,
+	Math: _Math,
+	Spherical: Spherical,
+	Cylindrical: Cylindrical,
+	Plane: Plane,
+	Frustum: Frustum,
+	Sphere: Sphere,
+	Ray: Ray,
+	Matrix4: Matrix4,
+	Matrix3: Matrix3,
+	Box3: Box3,
+	Box2: Box2,
+	Line3: Line3,
+	Euler: Euler,
+	Vector4: Vector4,
+	Vector3: Vector3,
+	Vector2: Vector2,
+	Quaternion: Quaternion,
+	Color: Color,
+	ImmediateRenderObject: ImmediateRenderObject,
+	VertexNormalsHelper: VertexNormalsHelper,
+	SpotLightHelper: SpotLightHelper,
+	SkeletonHelper: SkeletonHelper,
+	PointLightHelper: PointLightHelper,
+	RectAreaLightHelper: RectAreaLightHelper,
+	HemisphereLightHelper: HemisphereLightHelper,
+	GridHelper: GridHelper,
+	PolarGridHelper: PolarGridHelper,
+	FaceNormalsHelper: FaceNormalsHelper,
+	DirectionalLightHelper: DirectionalLightHelper,
+	CameraHelper: CameraHelper,
+	BoxHelper: BoxHelper,
+	Box3Helper: Box3Helper,
+	PlaneHelper: PlaneHelper,
+	ArrowHelper: ArrowHelper,
+	AxesHelper: AxesHelper,
+	CatmullRomCurve3: CatmullRomCurve3,
+	CubicBezierCurve3: CubicBezierCurve3,
+	QuadraticBezierCurve3: QuadraticBezierCurve3,
+	LineCurve3: LineCurve3,
+	ArcCurve: ArcCurve,
+	EllipseCurve: EllipseCurve,
+	SplineCurve: SplineCurve,
+	CubicBezierCurve: CubicBezierCurve,
+	QuadraticBezierCurve: QuadraticBezierCurve,
+	LineCurve: LineCurve,
+	Shape: Shape,
+	Path: Path,
+	ShapePath: ShapePath,
+	Font: Font,
+	CurvePath: CurvePath,
+	Curve: Curve,
+	ShapeUtils: ShapeUtils,
+	SceneUtils: SceneUtils,
+	WebGLUtils: WebGLUtils,
+	WireframeGeometry: WireframeGeometry,
+	ParametricGeometry: ParametricGeometry,
+	ParametricBufferGeometry: ParametricBufferGeometry,
+	TetrahedronGeometry: TetrahedronGeometry,
+	TetrahedronBufferGeometry: TetrahedronBufferGeometry,
+	OctahedronGeometry: OctahedronGeometry,
+	OctahedronBufferGeometry: OctahedronBufferGeometry,
+	IcosahedronGeometry: IcosahedronGeometry,
+	IcosahedronBufferGeometry: IcosahedronBufferGeometry,
+	DodecahedronGeometry: DodecahedronGeometry,
+	DodecahedronBufferGeometry: DodecahedronBufferGeometry,
+	PolyhedronGeometry: PolyhedronGeometry,
+	PolyhedronBufferGeometry: PolyhedronBufferGeometry,
+	TubeGeometry: TubeGeometry,
+	TubeBufferGeometry: TubeBufferGeometry,
+	TorusKnotGeometry: TorusKnotGeometry,
+	TorusKnotBufferGeometry: TorusKnotBufferGeometry,
+	TorusGeometry: TorusGeometry,
+	TorusBufferGeometry: TorusBufferGeometry,
+	TextGeometry: TextGeometry,
+	TextBufferGeometry: TextBufferGeometry,
+	SphereGeometry: SphereGeometry,
+	SphereBufferGeometry: SphereBufferGeometry,
+	RingGeometry: RingGeometry,
+	RingBufferGeometry: RingBufferGeometry,
+	PlaneGeometry: PlaneGeometry,
+	PlaneBufferGeometry: PlaneBufferGeometry,
+	LatheGeometry: LatheGeometry,
+	LatheBufferGeometry: LatheBufferGeometry,
+	ShapeGeometry: ShapeGeometry,
+	ShapeBufferGeometry: ShapeBufferGeometry,
+	ExtrudeGeometry: ExtrudeGeometry,
+	ExtrudeBufferGeometry: ExtrudeBufferGeometry,
+	EdgesGeometry: EdgesGeometry,
+	ConeGeometry: ConeGeometry,
+	ConeBufferGeometry: ConeBufferGeometry,
+	CylinderGeometry: CylinderGeometry,
+	CylinderBufferGeometry: CylinderBufferGeometry,
+	CircleGeometry: CircleGeometry,
+	CircleBufferGeometry: CircleBufferGeometry,
+	BoxGeometry: BoxGeometry,
+	BoxBufferGeometry: BoxBufferGeometry,
+	ShadowMaterial: ShadowMaterial,
+	SpriteMaterial: SpriteMaterial,
+	RawShaderMaterial: RawShaderMaterial,
+	ShaderMaterial: ShaderMaterial,
+	PointsMaterial: PointsMaterial,
+	MeshPhysicalMaterial: MeshPhysicalMaterial,
+	MeshStandardMaterial: MeshStandardMaterial,
+	MeshPhongMaterial: MeshPhongMaterial,
+	MeshToonMaterial: MeshToonMaterial,
+	MeshNormalMaterial: MeshNormalMaterial,
+	MeshLambertMaterial: MeshLambertMaterial,
+	MeshDepthMaterial: MeshDepthMaterial,
+	MeshDistanceMaterial: MeshDistanceMaterial,
+	MeshBasicMaterial: MeshBasicMaterial,
+	LineDashedMaterial: LineDashedMaterial,
+	LineBasicMaterial: LineBasicMaterial,
+	Material: Material,
+	Float64BufferAttribute: Float64BufferAttribute,
+	Float32BufferAttribute: Float32BufferAttribute,
+	Uint32BufferAttribute: Uint32BufferAttribute,
+	Int32BufferAttribute: Int32BufferAttribute,
+	Uint16BufferAttribute: Uint16BufferAttribute,
+	Int16BufferAttribute: Int16BufferAttribute,
+	Uint8ClampedBufferAttribute: Uint8ClampedBufferAttribute,
+	Uint8BufferAttribute: Uint8BufferAttribute,
+	Int8BufferAttribute: Int8BufferAttribute,
+	BufferAttribute: BufferAttribute,
+	REVISION: REVISION,
+	MOUSE: MOUSE,
+	CullFaceNone: CullFaceNone,
+	CullFaceBack: CullFaceBack,
+	CullFaceFront: CullFaceFront,
+	CullFaceFrontBack: CullFaceFrontBack,
+	FrontFaceDirectionCW: FrontFaceDirectionCW,
+	FrontFaceDirectionCCW: FrontFaceDirectionCCW,
+	BasicShadowMap: BasicShadowMap,
+	PCFShadowMap: PCFShadowMap,
+	PCFSoftShadowMap: PCFSoftShadowMap,
+	FrontSide: FrontSide,
+	BackSide: BackSide,
+	DoubleSide: DoubleSide,
+	FlatShading: FlatShading,
+	SmoothShading: SmoothShading,
+	NoColors: NoColors,
+	FaceColors: FaceColors,
+	VertexColors: VertexColors,
+	NoBlending: NoBlending,
+	NormalBlending: NormalBlending,
+	AdditiveBlending: AdditiveBlending,
+	SubtractiveBlending: SubtractiveBlending,
+	MultiplyBlending: MultiplyBlending,
+	CustomBlending: CustomBlending,
+	AddEquation: AddEquation,
+	SubtractEquation: SubtractEquation,
+	ReverseSubtractEquation: ReverseSubtractEquation,
+	MinEquation: MinEquation,
+	MaxEquation: MaxEquation,
+	ZeroFactor: ZeroFactor,
+	OneFactor: OneFactor,
+	SrcColorFactor: SrcColorFactor,
+	OneMinusSrcColorFactor: OneMinusSrcColorFactor,
+	SrcAlphaFactor: SrcAlphaFactor,
+	OneMinusSrcAlphaFactor: OneMinusSrcAlphaFactor,
+	DstAlphaFactor: DstAlphaFactor,
+	OneMinusDstAlphaFactor: OneMinusDstAlphaFactor,
+	DstColorFactor: DstColorFactor,
+	OneMinusDstColorFactor: OneMinusDstColorFactor,
+	SrcAlphaSaturateFactor: SrcAlphaSaturateFactor,
+	NeverDepth: NeverDepth,
+	AlwaysDepth: AlwaysDepth,
+	LessDepth: LessDepth,
+	LessEqualDepth: LessEqualDepth,
+	EqualDepth: EqualDepth,
+	GreaterEqualDepth: GreaterEqualDepth,
+	GreaterDepth: GreaterDepth,
+	NotEqualDepth: NotEqualDepth,
+	MultiplyOperation: MultiplyOperation,
+	MixOperation: MixOperation,
+	AddOperation: AddOperation,
+	NoToneMapping: NoToneMapping,
+	LinearToneMapping: LinearToneMapping,
+	ReinhardToneMapping: ReinhardToneMapping,
+	Uncharted2ToneMapping: Uncharted2ToneMapping,
+	CineonToneMapping: CineonToneMapping,
+	UVMapping: UVMapping,
+	CubeReflectionMapping: CubeReflectionMapping,
+	CubeRefractionMapping: CubeRefractionMapping,
+	EquirectangularReflectionMapping: EquirectangularReflectionMapping,
+	EquirectangularRefractionMapping: EquirectangularRefractionMapping,
+	SphericalReflectionMapping: SphericalReflectionMapping,
+	CubeUVReflectionMapping: CubeUVReflectionMapping,
+	CubeUVRefractionMapping: CubeUVRefractionMapping,
+	RepeatWrapping: RepeatWrapping,
+	ClampToEdgeWrapping: ClampToEdgeWrapping,
+	MirroredRepeatWrapping: MirroredRepeatWrapping,
+	NearestFilter: NearestFilter,
+	NearestMipMapNearestFilter: NearestMipMapNearestFilter,
+	NearestMipMapLinearFilter: NearestMipMapLinearFilter,
+	LinearFilter: LinearFilter,
+	LinearMipMapNearestFilter: LinearMipMapNearestFilter,
+	LinearMipMapLinearFilter: LinearMipMapLinearFilter,
+	UnsignedByteType: UnsignedByteType,
+	ByteType: ByteType,
+	ShortType: ShortType,
+	UnsignedShortType: UnsignedShortType,
+	IntType: IntType,
+	UnsignedIntType: UnsignedIntType,
+	FloatType: FloatType,
+	HalfFloatType: HalfFloatType,
+	UnsignedShort4444Type: UnsignedShort4444Type,
+	UnsignedShort5551Type: UnsignedShort5551Type,
+	UnsignedShort565Type: UnsignedShort565Type,
+	UnsignedInt248Type: UnsignedInt248Type,
+	AlphaFormat: AlphaFormat,
+	RGBFormat: RGBFormat,
+	RGBAFormat: RGBAFormat,
+	LuminanceFormat: LuminanceFormat,
+	LuminanceAlphaFormat: LuminanceAlphaFormat,
+	RGBEFormat: RGBEFormat,
+	DepthFormat: DepthFormat,
+	DepthStencilFormat: DepthStencilFormat,
+	RGB_S3TC_DXT1_Format: RGB_S3TC_DXT1_Format,
+	RGBA_S3TC_DXT1_Format: RGBA_S3TC_DXT1_Format,
+	RGBA_S3TC_DXT3_Format: RGBA_S3TC_DXT3_Format,
+	RGBA_S3TC_DXT5_Format: RGBA_S3TC_DXT5_Format,
+	RGB_PVRTC_4BPPV1_Format: RGB_PVRTC_4BPPV1_Format,
+	RGB_PVRTC_2BPPV1_Format: RGB_PVRTC_2BPPV1_Format,
+	RGBA_PVRTC_4BPPV1_Format: RGBA_PVRTC_4BPPV1_Format,
+	RGBA_PVRTC_2BPPV1_Format: RGBA_PVRTC_2BPPV1_Format,
+	RGB_ETC1_Format: RGB_ETC1_Format,
+	LoopOnce: LoopOnce,
+	LoopRepeat: LoopRepeat,
+	LoopPingPong: LoopPingPong,
+	InterpolateDiscrete: InterpolateDiscrete,
+	InterpolateLinear: InterpolateLinear,
+	InterpolateSmooth: InterpolateSmooth,
+	ZeroCurvatureEnding: ZeroCurvatureEnding,
+	ZeroSlopeEnding: ZeroSlopeEnding,
+	WrapAroundEnding: WrapAroundEnding,
+	TrianglesDrawMode: TrianglesDrawMode,
+	TriangleStripDrawMode: TriangleStripDrawMode,
+	TriangleFanDrawMode: TriangleFanDrawMode,
+	LinearEncoding: LinearEncoding,
+	sRGBEncoding: sRGBEncoding,
+	GammaEncoding: GammaEncoding,
+	RGBEEncoding: RGBEEncoding,
+	LogLuvEncoding: LogLuvEncoding,
+	RGBM7Encoding: RGBM7Encoding,
+	RGBM16Encoding: RGBM16Encoding,
+	RGBDEncoding: RGBDEncoding,
+	BasicDepthPacking: BasicDepthPacking,
+	RGBADepthPacking: RGBADepthPacking,
+	CubeGeometry: BoxGeometry,
+	Face4: Face4,
+	LineStrip: LineStrip,
+	LinePieces: LinePieces,
+	MeshFaceMaterial: MeshFaceMaterial,
+	MultiMaterial: MultiMaterial,
+	PointCloud: PointCloud,
+	Particle: Particle,
+	ParticleSystem: ParticleSystem,
+	PointCloudMaterial: PointCloudMaterial,
+	ParticleBasicMaterial: ParticleBasicMaterial,
+	ParticleSystemMaterial: ParticleSystemMaterial,
+	Vertex: Vertex,
+	DynamicBufferAttribute: DynamicBufferAttribute,
+	Int8Attribute: Int8Attribute,
+	Uint8Attribute: Uint8Attribute,
+	Uint8ClampedAttribute: Uint8ClampedAttribute,
+	Int16Attribute: Int16Attribute,
+	Uint16Attribute: Uint16Attribute,
+	Int32Attribute: Int32Attribute,
+	Uint32Attribute: Uint32Attribute,
+	Float32Attribute: Float32Attribute,
+	Float64Attribute: Float64Attribute,
+	ClosedSplineCurve3: ClosedSplineCurve3,
+	SplineCurve3: SplineCurve3,
+	Spline: Spline,
+	AxisHelper: AxisHelper,
+	BoundingBoxHelper: BoundingBoxHelper,
+	EdgesHelper: EdgesHelper,
+	WireframeHelper: WireframeHelper,
+	XHRLoader: XHRLoader,
+	BinaryTextureLoader: BinaryTextureLoader,
+	GeometryUtils: GeometryUtils,
+	ImageUtils: ImageUtils,
+	Projector: Projector,
+	CanvasRenderer: CanvasRenderer
+});
+
+var THREE$1 = Object.assign({}, THREE)
+
+/**
+ * @author Russell Toris - rctoris@wpi.edu
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+var REVISION$1 = '0.18.0';
+
+// Marker types
+var MARKER_ARROW = 0;
+var MARKER_CUBE = 1;
+var MARKER_SPHERE = 2;
+var MARKER_CYLINDER = 3;
+var MARKER_LINE_STRIP = 4;
+var MARKER_LINE_LIST = 5;
+var MARKER_CUBE_LIST = 6;
+var MARKER_SPHERE_LIST = 7;
+var MARKER_POINTS = 8;
+var MARKER_TEXT_VIEW_FACING = 9;
+var MARKER_MESH_RESOURCE = 10;
+var MARKER_TRIANGLE_LIST = 11;
+
+// Interactive marker feedback types
+var INTERACTIVE_MARKER_KEEP_ALIVE = 0;
+var INTERACTIVE_MARKER_POSE_UPDATE = 1;
+var INTERACTIVE_MARKER_MENU_SELECT = 2;
+var INTERACTIVE_MARKER_BUTTON_CLICK = 3;
+var INTERACTIVE_MARKER_MOUSE_DOWN = 4;
+var INTERACTIVE_MARKER_MOUSE_UP = 5;
+
+// Interactive marker control types
+var INTERACTIVE_MARKER_NONE = 0;
+var INTERACTIVE_MARKER_MENU = 1;
+var INTERACTIVE_MARKER_BUTTON = 2;
+var INTERACTIVE_MARKER_MOVE_AXIS = 3;
+var INTERACTIVE_MARKER_MOVE_PLANE = 4;
+var INTERACTIVE_MARKER_ROTATE_AXIS = 5;
+var INTERACTIVE_MARKER_MOVE_ROTATE = 6;
+
+// Interactive marker rotation behavior
+var INTERACTIVE_MARKER_INHERIT = 0;
+var INTERACTIVE_MARKER_FIXED = 1;
+var INTERACTIVE_MARKER_VIEW_FACING = 2;
+
+/**
+ * Create a THREE material based on the given RGBA values.
+ *
+ * @param r - the red value
+ * @param g - the green value
+ * @param b - the blue value
+ * @param a - the alpha value
+ * @returns the THREE material
+ */
+var makeColorMaterial = function(r, g, b, a) {
+  var color = new THREE$1.Color();
+  color.setRGB(r, g, b);
+  if (a <= 0.99) {
+    return new THREE$1.MeshBasicMaterial({
+      color : color.getHex(),
+      opacity : a + 0.1,
+      transparent : true,
+      depthWrite : true,
+      blendSrc : THREE$1.SrcAlphaFactor,
+      blendDst : THREE$1.OneMinusSrcAlphaFactor,
+      blendEquation : THREE$1.ReverseSubtractEquation,
+      blending : THREE$1.NormalBlending
+    });
+  } else {
+    return new THREE$1.MeshPhongMaterial({
+      color : color.getHex(),
+      opacity : a,
+      blending : THREE$1.NormalBlending
+    });
+  }
+};
+
+/**
+ * Return the intersection between the mouseray and the plane.
+ *
+ * @param mouseRay - the mouse ray
+ * @param planeOrigin - the origin of the plane
+ * @param planeNormal - the normal of the plane
+ * @returns the intersection point
+ */
+var intersectPlane = function(mouseRay, planeOrigin, planeNormal) {
+  var vector = new THREE$1.Vector3();
+  var intersectPoint = new THREE$1.Vector3();
+  vector.subVectors(planeOrigin, mouseRay.origin);
+  var dot = mouseRay.direction.dot(planeNormal);
+
+  // bail if ray and plane are parallel
+  if (Math.abs(dot) < mouseRay.precision) {
+    return undefined;
+  }
+
+  // calc distance to plane
+  var scalar = planeNormal.dot(vector) / dot;
+
+  intersectPoint.addVectors(mouseRay.origin, mouseRay.direction.clone().multiplyScalar(scalar));
+  return intersectPoint;
+};
+
+/**
+ * Find the closest point on targetRay to any point on mouseRay. Math taken from
+ * http://paulbourke.net/geometry/lineline3d/
+ *
+ * @param targetRay - the target ray to use
+ * @param mouseRay - the mouse ray
+ * @param the closest point between the two rays
+ */
+var findClosestPoint = function(targetRay, mouseRay) {
+  var v13 = new THREE$1.Vector3();
+  v13.subVectors(targetRay.origin, mouseRay.origin);
+  var v43 = mouseRay.direction.clone();
+  var v21 = targetRay.direction.clone();
+  var d1343 = v13.dot(v43);
+  var d4321 = v43.dot(v21);
+  var d1321 = v13.dot(v21);
+  var d4343 = v43.dot(v43);
+  var d2121 = v21.dot(v21);
+
+  var denom = d2121 * d4343 - d4321 * d4321;
+  // check within a delta
+  if (Math.abs(denom) <= 0.0001) {
+    return undefined;
+  }
+  var numer = d1343 * d4321 - d1321 * d4343;
+
+  var mua = numer / denom;
+  return mua;
+};
+
+/**
+ * Find the closest point between the axis and the mouse.
+ *
+ * @param axisRay - the ray from the axis
+ * @param camera - the camera to project from
+ * @param mousePos - the mouse position
+ * @returns the closest axis point
+ */
+var closestAxisPoint = function(axisRay, camera, mousePos) {
+  // project axis onto screen
+  var o = axisRay.origin.clone();
+  o.project(camera);
+  var o2 = axisRay.direction.clone().add(axisRay.origin);
+  o2.project(camera);
+
+  // d is the axis vector in screen space (d = o2-o)
+  var d = o2.clone().sub(o);
+
+  // t is the 2d ray param of perpendicular projection of mousePos onto o
+  var tmp = new THREE$1.Vector2();
+  // (t = (mousePos - o) * d / (d*d))
+  var t = tmp.subVectors(mousePos, o).dot(d) / d.dot(d);
+
+  // mp is the final 2d-projected mouse pos (mp = o + d*t)
+  var mp = new THREE$1.Vector2();
+  mp.addVectors(o, d.clone().multiplyScalar(t));
+
+  // go back to 3d by shooting a ray
+  var vector = new THREE$1.Vector3(mp.x, mp.y, 0.5);
+  vector.unproject(camera);
+  var mpRay = new THREE$1.Ray(camera.position, vector.sub(camera.position).normalize());
+
+  return findClosestPoint(axisRay, mpRay);
+};
+
+/**
+ * @author Julius Kammerl - jkammerl@willowgarage.com
+ */
+
+class DepthCloud extends THREE$1.Object3D {
+
+  /**
+   * The DepthCloud object.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * url - the URL of the stream
+   *   * streamType (optional) - the stream type: mjpeg or vp8 video (defaults to vp8)
+   *   * f (optional) - the camera's focal length (defaults to standard Kinect calibration)
+   *   * maxDepthPerTile (optional) - the factor with which we control the desired depth range (defaults to 1.0)
+   *   * pointSize (optional) - point size (pixels) for rendered point cloud
+   *   * width (optional) - width of the video stream
+   *   * height (optional) - height of the video stream
+   *   * whiteness (optional) - blends rgb values to white (0..100)
+   *   * varianceThreshold (optional) - threshold for variance filter, used for compression artifact removal
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+
+    this.url = options.url;
+    this.streamType = options.streamType || 'vp8';
+    this.f = options.f || 526;
+    this.maxDepthPerTile = options.maxDepthPerTile || 1.0;
+    this.pointSize = options.pointSize || 3;
+    this.width = options.width || 1024;
+    this.height = options.height || 1024;
+    this.whiteness = options.whiteness || 0;
+    this.varianceThreshold = options.varianceThreshold || 0.000016667;
+
+    this.isMjpeg = this.streamType.toLowerCase() === 'mjpeg';
+
+    this.video = document.createElement(this.isMjpeg ? 'img' : 'video');
+    this.video.addEventListener(this.isMjpeg ? 'load' : 'loadedmetadata', this.metaLoaded.bind(this), false);
+
+    if (!this.isMjpeg) {
+      this.video.loop = true;
+    }
+
+    this.video.src = this.url;
+    this.video.crossOrigin = 'Anonymous';
+    this.video.setAttribute('crossorigin', 'Anonymous');
+
+    // define custom shaders
+    this.vertex_shader = [
+      'uniform sampler2D map;',
+      '',
+      'uniform float width;',
+      'uniform float height;',
+      'uniform float nearClipping, farClipping;',
+      '',
+      'uniform float pointSize;',
+      'uniform float zOffset;',
+      '',
+      'uniform float focallength;',
+      'uniform float maxDepthPerTile;',
+      '',
+      'varying vec2 vUvP;',
+      'varying vec2 colorP;',
+      '',
+      'varying float depthVariance;',
+      'varying float maskVal;',
+      '',
+      'float sampleDepth(vec2 pos)',
+      '  {',
+      '    float depth;',
+      '    ',
+      '    vec2 vUv = vec2( pos.x / (width*2.0), pos.y / (height*2.0)+0.5 );',
+      '    vec2 vUv2 = vec2( pos.x / (width*2.0)+0.5, pos.y / (height*2.0)+0.5 );',
+      '    ',
+      '    vec4 depthColor = texture2D( map, vUv );',
+      '    ',
+      '    depth = ( depthColor.r + depthColor.g + depthColor.b ) / 3.0 ;',
+      '    ',
+      '    if (depth>0.99)',
+      '    {',
+      '      vec4 depthColor2 = texture2D( map, vUv2 );',
+      '      float depth2 = ( depthColor2.r + depthColor2.g + depthColor2.b ) / 3.0 ;',
+      '      depth = 0.99+depth2;',
+      '    }',
+      '    ',
+      '    return depth;',
+      '  }',
+      '',
+      'float median(float a, float b, float c)',
+      '  {',
+      '    float r=a;',
+      '    ',
+      '    if ( (a<b) && (b<c) )',
+      '    {',
+      '      r = b;',
+      '    }',
+      '    if ( (a<c) && (c<b) )',
+      '    {',
+      '      r = c;',
+      '    }',
+      '    return r;',
+      '  }',
+      '',
+      'float variance(float d1, float d2, float d3, float d4, float d5, float d6, float d7, float d8, float d9)',
+      '  {',
+      '    float mean = (d1 + d2 + d3 + d4 + d5 + d6 + d7 + d8 + d9) / 9.0;',
+      '    float t1 = (d1-mean);',
+      '    float t2 = (d2-mean);',
+      '    float t3 = (d3-mean);',
+      '    float t4 = (d4-mean);',
+      '    float t5 = (d5-mean);',
+      '    float t6 = (d6-mean);',
+      '    float t7 = (d7-mean);',
+      '    float t8 = (d8-mean);',
+      '    float t9 = (d9-mean);',
+      '    float v = (t1*t1+t2*t2+t3*t3+t4*t4+t5*t5+t6*t6+t7*t7+t8*t8+t9*t9)/9.0;',
+      '    return v;',
+      '  }',
+      '',
+      'vec2 decodeDepth(vec2 pos)',
+      '  {',
+      '    vec2 ret;',
+      '    ',
+      '    ',
+      '    float depth1 = sampleDepth(vec2(position.x-1.0, position.y-1.0));',
+      '    float depth2 = sampleDepth(vec2(position.x, position.y-1.0));',
+      '    float depth3 = sampleDepth(vec2(position.x+1.0, position.y-1.0));',
+      '    float depth4 = sampleDepth(vec2(position.x-1.0, position.y));',
+      '    float depth5 = sampleDepth(vec2(position.x, position.y));',
+      '    float depth6 = sampleDepth(vec2(position.x+1.0, position.y));',
+      '    float depth7 = sampleDepth(vec2(position.x-1.0, position.y+1.0));',
+      '    float depth8 = sampleDepth(vec2(position.x, position.y+1.0));',
+      '    float depth9 = sampleDepth(vec2(position.x+1.0, position.y+1.0));',
+      '    ',
+      '    float median1 = median(depth1, depth2, depth3);',
+      '    float median2 = median(depth4, depth5, depth6);',
+      '    float median3 = median(depth7, depth8, depth9);',
+      '    ',
+      '    ret.x = median(median1, median2, median3);',
+      '    ret.y = variance(depth1, depth2, depth3, depth4, depth5, depth6, depth7, depth8, depth9);',
+      '    ',
+      '    return ret;',
+      '    ',
+      '  }',
+      '',
+      '',
+      'void main() {',
+      '  ',
+      '  vUvP = vec2( position.x / (width*2.0), position.y / (height*2.0)+0.5 );',
+      '  colorP = vec2( position.x / (width*2.0)+0.5 , position.y / (height*2.0)  );',
+      '  ',
+      '  vec4 pos = vec4(0.0,0.0,0.0,0.0);',
+      '  depthVariance = 0.0;',
+      '  ',
+      '  if ( (vUvP.x<0.0)|| (vUvP.x>0.5) || (vUvP.y<0.5) || (vUvP.y>0.0))',
+      '  {',
+      '    vec2 smp = decodeDepth(vec2(position.x, position.y));',
+      '    float depth = smp.x;',
+      '    depthVariance = smp.y;',
+      '    ',
+      '    float z = -depth;',
+      '    ',
+      '    pos = vec4(',
+      '      ( position.x / width - 0.5 ) * z * 0.5 * maxDepthPerTile * (1000.0/focallength) * -1.0,',
+      '      ( position.y / height - 0.5 ) * z * 0.5 * maxDepthPerTile * (1000.0/focallength),',
+      '      (- z + zOffset / 1000.0) * maxDepthPerTile,',
+      '      1.0);',
+      '    ',
+      '    vec2 maskP = vec2( position.x / (width*2.0), position.y / (height*2.0)  );',
+      '    vec4 maskColor = texture2D( map, maskP );',
+      '    maskVal = ( maskColor.r + maskColor.g + maskColor.b ) / 3.0 ;',
+      '  }',
+      '  ',
+      '  gl_PointSize = pointSize;',
+      '  gl_Position = projectionMatrix * modelViewMatrix * pos;',
+      '  ',
+      '}'
+      ].join('\n');
+
+    this.fragment_shader = [
+      'uniform sampler2D map;',
+      'uniform float varianceThreshold;',
+      'uniform float whiteness;',
+      '',
+      'varying vec2 vUvP;',
+      'varying vec2 colorP;',
+      '',
+      'varying float depthVariance;',
+      'varying float maskVal;',
+      '',
+      '',
+      'void main() {',
+      '  ',
+      '  vec4 color;',
+      '  ',
+      '  if ( (depthVariance>varianceThreshold) || (maskVal>0.5) ||(vUvP.x<0.0)|| (vUvP.x>0.5) || (vUvP.y<0.5) || (vUvP.y>1.0))',
+      '  {  ',
+      '    discard;',
+      '  }',
+      '  else ',
+      '  {',
+      '    color = texture2D( map, colorP );',
+      '    ',
+      '    float fader = whiteness /100.0;',
+      '    ',
+      '    color.r = color.r * (1.0-fader)+ fader;',
+      '    ',
+      '    color.g = color.g * (1.0-fader)+ fader;',
+      '    ',
+      '    color.b = color.b * (1.0-fader)+ fader;',
+      '    ',
+      '    color.a = 1.0;//smoothstep( 20000.0, -20000.0, gl_FragCoord.z / gl_FragCoord.w );',
+      '  }',
+      '  ',
+      '  gl_FragColor = vec4( color.r, color.g, color.b, color.a );',
+      '  ',
+      '}'
+      ].join('\n');
+  };
+
+  /**
+   * Callback called when video metadata is ready
+   */
+  metaLoaded() {
+    this.metaLoaded = true;
+    this.initStreamer();
+  };
+
+  /**
+   * Callback called when video metadata is ready
+   */
+  initStreamer() {
+
+    if (this.metaLoaded) {
+      this.texture = new THREE$1.Texture(this.video);
+      this.geometry = new THREE$1.Geometry();
+
+      for (var i = 0, l = this.width * this.height; i < l; i++) {
+
+        var vertex = new THREE$1.Vector3();
+        vertex.x = (i % this.width);
+        vertex.y = Math.floor(i / this.width);
+
+        this.geometry.vertices.push(vertex);
+      }
+
+      this.material = new THREE$1.ShaderMaterial({
+        uniforms : {
+          'map' : {
+            type : 't',
+            value : this.texture
+          },
+          'width' : {
+            type : 'f',
+            value : this.width
+          },
+          'height' : {
+            type : 'f',
+            value : this.height
+          },
+          'focallength' : {
+            type : 'f',
+            value : this.f
+          },
+          'pointSize' : {
+            type : 'f',
+            value : this.pointSize
+          },
+          'zOffset' : {
+            type : 'f',
+            value : 0
+          },
+          'whiteness' : {
+            type : 'f',
+            value : this.whiteness
+          },
+          'varianceThreshold' : {
+            type : 'f',
+            value : this.varianceThreshold
+          },
+          'maxDepthPerTile': {
+            type : 'f',
+            value : this.maxDepthPerTile
+          },
+        },
+        vertexShader : this.vertex_shader,
+        fragmentShader : this.fragment_shader
+      });
+
+      this.mesh = new THREE$1.ParticleSystem(this.geometry, this.material);
+      this.mesh.position.x = 0;
+      this.mesh.position.y = 0;
+      this.add(this.mesh);
+
+      var that = this;
+
+      setInterval(function() {
+        if (that.isMjpeg || that.video.readyState === that.video.HAVE_ENOUGH_DATA) {
+          that.texture.needsUpdate = true;
+        }
+      }, 1000 / 30);
+    }
+  };
+
+  /**
+   * Start video playback
+   */
+  startStream() {
+    if (!this.isMjpeg) {
+      this.video.play();
+    }
+  };
+
+  /**
+   * Stop video playback
+   */
+  stopStream() {
+    if (!this.isMjpeg) {
+      this.video.pause();
+    }
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class Arrow extends THREE$1.Mesh {
+
+  /**
+   * A Arrow is a THREE object that can be used to display an arrow model.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * origin (optional) - the origin of the arrow
+   *   * direction (optional) - the direction vector of the arrow
+   *   * length (optional) - the length of the arrow
+   *   * headLength (optional) - the head length of the arrow
+   *   * shaftDiameter (optional) - the shaft diameter of the arrow
+   *   * headDiameter (optional) - the head diameter of the arrow
+   *   * material (optional) - the material to use for this arrow
+   */
+  constructor(options) {
+    options = options || {};
+    var origin = options.origin || new THREE$1.Vector3(0, 0, 0);
+    var direction = options.direction || new THREE$1.Vector3(1, 0, 0);
+    var length = options.length || 1;
+    var headLength = options.headLength || 0.2;
+    var shaftDiameter = options.shaftDiameter || 0.05;
+    var headDiameter = options.headDiameter || 0.1;
+    var material = options.material || new THREE$1.MeshBasicMaterial();
+
+    var shaftLength = length - headLength;
+
+    // create and merge geometry
+    var geometry = new THREE$1.CylinderGeometry(shaftDiameter * 0.5, shaftDiameter * 0.5, shaftLength,
+        12, 1);
+    var m = new THREE$1.Matrix4();
+    m.setPosition(new THREE$1.Vector3(0, shaftLength * 0.5, 0));
+    geometry.applyMatrix(m);
+
+    // create the head
+    var coneGeometry = new THREE$1.CylinderGeometry(0, headDiameter * 0.5, headLength, 12, 1);
+    m.setPosition(new THREE$1.Vector3(0, shaftLength + (headLength * 0.5), 0));
+    coneGeometry.applyMatrix(m);
+
+    // put the arrow together
+    geometry.merge(coneGeometry);
+
+    super(geometry, material);
+
+    this.position.copy(origin);
+    this.setDirection(direction);
+  };
+
+  /**
+   * Set the direction of this arrow to that of the given vector.
+   *
+   * @param direction - the direction to set this arrow
+   */
+  setDirection(direction) {
+    var axis = new THREE$1.Vector3(0, 1, 0).cross(direction);
+    var radians = Math.acos(new THREE$1.Vector3(0, 1, 0).dot(direction.clone().normalize()));
+    this.matrix = new THREE$1.Matrix4().makeRotationAxis(axis.normalize(), radians);
+    this.rotation.setFromRotationMatrix(this.matrix, this.rotation.order);
+  };
+
+  /**
+   * Set this arrow to be the given length.
+   *
+   * @param length - the new length of the arrow
+   */
+  setLength(length) {
+    this.scale.set(length, length, length);
+  };
+
+  /**
+   * Set the color of this arrow to the given hex value.
+   *
+   * @param hex - the hex value of the color to use
+   */
+  setColor(hex) {
+    this.material.color.setHex(hex);
+  };
+
+  /*
+   * Free memory of elements in this marker.
+   */
+  dispose() {
+    if (this.geometry !== undefined) {
+        this.geometry.dispose();
+    }
+    if (this.material !== undefined) {
+        this.material.dispose();
+    }
+  };
+}
+
+/**
+ * @author aleeper / http://adamleeper.com/
+ * @author mrdoob / http://mrdoob.com/
+ * @author gero3 / https://github.com/gero3
+ * @author Mugen87 / https://github.com/Mugen87
+ *
+ * Description: A THREE loader for STL ASCII files, as created by Solidworks and other CAD programs.
+ *
+ * Supports both binary and ASCII encoded files, with automatic detection of type.
+ *
+ * The loader returns a non-indexed buffer geometry.
+ *
+ * Limitations:
+ *  Binary decoding supports "Magics" color format (http://en.wikipedia.org/wiki/STL_(file_format)#Color_in_binary_STL).
+ *  There is perhaps some question as to how valid it is to always assume little-endian-ness.
+ *  ASCII decoding assumes file is UTF-8.
+ *
+ * Usage:
+ *  var loader = new THREE.STLLoader();
+ *  loader.load( './models/stl/slotted_disk.stl', function ( geometry ) {
+ *    scene.add( new THREE.Mesh( geometry ) );
+ *  });
+ *
+ * For binary STLs geometry might contain colors for vertices. To use it:
+ *  // use the same code to load STL as above
+ *  if (geometry.hasColors) {
+ *    material = new THREE.MeshPhongMaterial({ opacity: geometry.alpha, vertexColors: THREE.VertexColors });
+ *  } else { .... }
+ *  var mesh = new THREE.Mesh( geometry, material );
+ */
+
+THREE$1.STLLoader = function (manager) {
+
+  this.manager = (manager !== undefined) ? manager : THREE$1.DefaultLoadingManager;
+
+};
+
+THREE$1.STLLoader.prototype = {
+
+  constructor: THREE$1.STLLoader,
+
+  load: function (url, onLoad, onProgress, onError) {
+
+    var scope = this;
+
+    var loader = new THREE$1.FileLoader(scope.manager);
+    loader.setResponseType('arraybuffer');
+    loader.load(url, function (text) {
+
+      onLoad(scope.parse(text));
+
+    }, onProgress, onError);
+
+  },
+
+  parse: function (data) {
+
+    function isBinary(data) {
+
+      var expect, face_size, n_faces, reader;
+      reader = new DataView(data);
+      face_size = (32 / 8 * 3) + ((32 / 8 * 3) * 3) + (16 / 8);
+      n_faces = reader.getUint32(80, true);
+      expect = 80 + (32 / 8) + (n_faces * face_size);
+
+      if (expect === reader.byteLength) {
+
+        return true;
+
+      }
+
+      // An ASCII STL data must begin with 'solid ' as the first six bytes.
+      // However, ASCII STLs lacking the SPACE after the 'd' are known to be
+      // plentiful.  So, check the first 5 bytes for 'solid'.
+
+      // US-ASCII ordinal values for 's', 'o', 'l', 'i', 'd'
+
+      var solid = [115, 111, 108, 105, 100];
+
+      for (var i = 0; i < 5; i++) {
+
+        // If solid[ i ] does not match the i-th byte, then it is not an
+        // ASCII STL; hence, it is binary and return true.
+
+        if (solid[i] != reader.getUint8(i, false)) return true;
+
+      }
+
+      // First 5 bytes read "solid"; declare it to be an ASCII STL
+
+      return false;
+
+    }
+
+    function parseBinary(data) {
+
+      var reader = new DataView(data);
+      var faces = reader.getUint32(80, true);
+
+      var r, g, b, hasColors = false, colors;
+      var defaultR, defaultG, defaultB, alpha;
+
+      // process STL header
+      // check for default color in header ("COLOR=rgba" sequence).
+
+      for (var index = 0; index < 80 - 10; index++) {
+
+        if ((reader.getUint32(index, false) == 0x434F4C4F /*COLO*/) &&
+          (reader.getUint8(index + 4) == 0x52 /*'R'*/) &&
+          (reader.getUint8(index + 5) == 0x3D /*'='*/)) {
+
+          hasColors = true;
+          colors = [];
+
+          defaultR = reader.getUint8(index + 6) / 255;
+          defaultG = reader.getUint8(index + 7) / 255;
+          defaultB = reader.getUint8(index + 8) / 255;
+          alpha = reader.getUint8(index + 9) / 255;
+
+        }
+
+      }
+
+      var dataOffset = 84;
+      var faceLength = 12 * 4 + 2;
+
+      var geometry = new THREE$1.BufferGeometry();
+
+      var vertices = [];
+      var normals = [];
+
+      for (var face = 0; face < faces; face++) {
+
+        var start = dataOffset + face * faceLength;
+        var normalX = reader.getFloat32(start, true);
+        var normalY = reader.getFloat32(start + 4, true);
+        var normalZ = reader.getFloat32(start + 8, true);
+
+        if (hasColors) {
+
+          var packedColor = reader.getUint16(start + 48, true);
+
+          if ((packedColor & 0x8000) === 0) {
+
+            // facet has its own unique color
+
+            r = (packedColor & 0x1F) / 31;
+            g = ((packedColor >> 5) & 0x1F) / 31;
+            b = ((packedColor >> 10) & 0x1F) / 31;
+
+          } else {
+
+            r = defaultR;
+            g = defaultG;
+            b = defaultB;
+
+          }
+
+        }
+
+        for (var i = 1; i <= 3; i++) {
+
+          var vertexstart = start + i * 12;
+
+          vertices.push(reader.getFloat32(vertexstart, true));
+          vertices.push(reader.getFloat32(vertexstart + 4, true));
+          vertices.push(reader.getFloat32(vertexstart + 8, true));
+
+          normals.push(normalX, normalY, normalZ);
+
+          if (hasColors) {
+
+            colors.push(r, g, b);
+
+          }
+
+        }
+
+      }
+
+      geometry.addAttribute('position', new THREE$1.BufferAttribute(new Float32Array(vertices), 3));
+      geometry.addAttribute('normal', new THREE$1.BufferAttribute(new Float32Array(normals), 3));
+
+      if (hasColors) {
+
+        geometry.addAttribute('color', new THREE$1.BufferAttribute(new Float32Array(colors), 3));
+        geometry.hasColors = true;
+        geometry.alpha = alpha;
+
+      }
+
+      return geometry;
+
+    }
+
+    function parseASCII(data) {
+
+      var geometry = new THREE$1.BufferGeometry();
+      var patternFace = /facet([\s\S]*?)endfacet/g;
+      var faceCounter = 0;
+
+      var patternFloat = /[\s]+([+-]?(?:\d+.\d+|\d+.|\d+|.\d+)(?:[eE][+-]?\d+)?)/.source;
+      var patternVertex = new RegExp('vertex' + patternFloat + patternFloat + patternFloat, 'g');
+      var patternNormal = new RegExp('normal' + patternFloat + patternFloat + patternFloat, 'g');
+
+      var vertices = [];
+      var normals = [];
+
+      var normal = new THREE$1.Vector3();
+
+      var result;
+
+      while ((result = patternFace.exec(data)) !== null) {
+
+        var vertexCountPerFace = 0;
+        var normalCountPerFace = 0;
+
+        var text = result[0];
+
+        while ((result = patternNormal.exec(text)) !== null) {
+
+          normal.x = parseFloat(result[1]);
+          normal.y = parseFloat(result[2]);
+          normal.z = parseFloat(result[3]);
+          normalCountPerFace++;
+
+        }
+
+        while ((result = patternVertex.exec(text)) !== null) {
+
+          vertices.push(parseFloat(result[1]), parseFloat(result[2]), parseFloat(result[3]));
+          normals.push(normal.x, normal.y, normal.z);
+          vertexCountPerFace++;
+
+        }
+
+        // every face have to own ONE valid normal
+
+        if (normalCountPerFace !== 1) {
+
+          console.error('THREE.STLLoader: Something isn\'t right with the normal of face number ' + faceCounter);
+
+        }
+
+        // each face have to own THREE valid vertices
+
+        if (vertexCountPerFace !== 3) {
+
+          console.error('THREE.STLLoader: Something isn\'t right with the vertices of face number ' + faceCounter);
+
+        }
+
+        faceCounter++;
+
+      }
+
+      geometry.addAttribute('position', new THREE$1.Float32BufferAttribute(vertices, 3));
+      geometry.addAttribute('normal', new THREE$1.Float32BufferAttribute(normals, 3));
+
+      return geometry;
+
+    }
+
+    function ensureString(buffer) {
+
+      if (typeof buffer !== 'string') {
+
+        var array_buffer = new Uint8Array(buffer);
+
+        if (window.TextDecoder !== undefined) {
+
+          return new TextDecoder().decode(array_buffer);
+
+        }
+
+        var str = '';
+
+        for (var i = 0, il = buffer.byteLength; i < il; i++) {
+
+          str += String.fromCharCode(array_buffer[i]); // implicitly assumes little-endian
+
+        }
+
+        return str;
+
+      } else {
+
+        return buffer;
+
+      }
+
+    }
+
+    function ensureBinary(buffer) {
+
+      if (typeof buffer === 'string') {
+
+        var array_buffer = new Uint8Array(buffer.length);
+        for (var i = 0; i < buffer.length; i++) {
+
+          array_buffer[i] = buffer.charCodeAt(i) & 0xff; // implicitly assumes little-endian
+
+        }
+        return array_buffer.buffer || array_buffer;
+
+      } else {
+
+        return buffer;
+
+      }
+
+    }
+
+    // start
+
+    var binData = ensureBinary(data);
+
+    return isBinary(binData) ? parseBinary(binData) : parseASCII(ensureString(data));
+
+  }
+
+};
+
+/**
+ * @author mrdoob / http://mrdoob.com/
+ * @author Mugen87 / https://github.com/Mugen87
+ *
+ *
+ * @Modified by Jihoon Lee from ColladerLoader.js@r88
+ * To support rviz compatible collada viewing.
+ * See: #202 why it is forked.
+ *
+ * It is a fork from ColladerLoader.js in three.js. It follows three.js license.
+ */
+
+THREE$1.ColladaLoader = function (manager) {
+
+  this.manager = (manager !== undefined) ? manager : THREE$1.DefaultLoadingManager;
+
+};
+
+THREE$1.ColladaLoader.prototype = {
+
+  constructor: THREE$1.ColladaLoader,
+
+  crossOrigin: 'Anonymous',
+
+  load: function (url, onLoad, onProgress, onError) {
+
+    var scope = this;
+
+    var path = THREE$1.Loader.prototype.extractUrlBase(url);
+
+    var loader = new THREE$1.FileLoader(scope.manager);
+    loader.load(url, function (text) {
+
+      onLoad(scope.parse(text, path));
+
+    }, onProgress, onError);
+
+  },
+
+  options: {
+
+    set convertUpAxis(value) {
+
+      console.warn('THREE.ColladaLoader: options.convertUpAxis() has been removed. Up axis is converted automatically.');
+
+    }
+
+  },
+
+  setCrossOrigin: function (value) {
+
+    this.crossOrigin = value;
+
+  },
+
+  parse: function (text, path) {
+
+    function getElementsByTagName(xml, name) {
+
+      // Non recursive xml.getElementsByTagName() ...
+
+      var array = [];
+      var childNodes = xml.childNodes;
+
+      for (var i = 0, l = childNodes.length; i < l; i++) {
+
+        var child = childNodes[i];
+
+        if (child.nodeName === name) {
+
+          array.push(child);
+
+        }
+
+      }
+
+      return array;
+
+    }
+
+    function parseStrings(text) {
+
+      if (text.length === 0) return [];
+
+      var parts = text.trim().split(/\s+/);
+      var array = new Array(parts.length);
+
+      for (var i = 0, l = parts.length; i < l; i++) {
+
+        array[i] = parts[i];
+
+      }
+
+      return array;
+
+    }
+
+    function parseFloats(text) {
+
+      if (text.length === 0) return [];
+
+      var parts = text.trim().split(/\s+/);
+      var array = new Array(parts.length);
+
+      for (var i = 0, l = parts.length; i < l; i++) {
+
+        array[i] = parseFloat(parts[i]);
+
+      }
+
+      return array;
+
+    }
+
+    function parseInts(text) {
+
+      if (text.length === 0) return [];
+
+      var parts = text.trim().split(/\s+/);
+      var array = new Array(parts.length);
+
+      for (var i = 0, l = parts.length; i < l; i++) {
+
+        array[i] = parseInt(parts[i]);
+
+      }
+
+      return array;
+
+    }
+
+    function parseId(text) {
+
+      return text.substring(1);
+
+    }
+
+    function generateId() {
+
+      return 'three_default_' + (count++);
+
+    }
+
+    function isEmpty(object) {
+
+      return Object.keys(object).length === 0;
+
+    }
+
+    // asset
+
+    function parseAsset(xml) {
+
+      return {
+        unit: parseAssetUnit(getElementsByTagName(xml, 'unit')[0]),
+        upAxis: parseAssetUpAxis(getElementsByTagName(xml, 'up_axis')[0])
+      };
+
+    }
+
+    function parseAssetUnit(xml) {
+
+      return xml !== undefined ? parseFloat(xml.getAttribute('meter')) : 1;
+
+    }
+
+    function parseAssetUpAxis(xml) {
+
+      return xml !== undefined ? xml.textContent : 'Y_UP';
+
+    }
+
+    // library
+
+    function parseLibrary(xml, libraryName, nodeName, parser) {
+
+      var library = getElementsByTagName(xml, libraryName)[0];
+
+      if (library !== undefined) {
+
+        var elements = getElementsByTagName(library, nodeName);
+
+        for (var i = 0; i < elements.length; i++) {
+
+          parser(elements[i]);
+
+        }
+
+      }
+
+    }
+
+    function buildLibrary(data, builder) {
+
+      for (var name in data) {
+
+        var object = data[name];
+        object.build = builder(data[name]);
+
+      }
+
+    }
+
+    // get
+
+    function getBuild(data, builder) {
+
+      if (data.build !== undefined) return data.build;
+
+      data.build = builder(data);
+
+      return data.build;
+
+    }
+
+    // animation
+
+    function parseAnimation(xml) {
+
+      var data = {
+        sources: {},
+        samplers: {},
+        channels: {}
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        var id;
+
+        switch (child.nodeName) {
+
+          case 'source':
+            id = child.getAttribute('id');
+            data.sources[id] = parseSource(child);
+            break;
+
+          case 'sampler':
+            id = child.getAttribute('id');
+            data.samplers[id] = parseAnimationSampler(child);
+            break;
+
+          case 'channel':
+            id = child.getAttribute('target');
+            data.channels[id] = parseAnimationChannel(child);
+            break;
+
+          default:
+            console.log(child);
+
+        }
+
+      }
+
+      library.animations[xml.getAttribute('id')] = data;
+
+    }
+
+    function parseAnimationSampler(xml) {
+
+      var data = {
+        inputs: {},
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'input':
+            var id = parseId(child.getAttribute('source'));
+            var semantic = child.getAttribute('semantic');
+            data.inputs[semantic] = id;
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseAnimationChannel(xml) {
+
+      var data = {};
+
+      var target = xml.getAttribute('target');
+
+      // parsing SID Addressing Syntax
+
+      var parts = target.split('/');
+
+      var id = parts.shift();
+      var sid = parts.shift();
+
+      // check selection syntax
+
+      var arraySyntax = (sid.indexOf('(') !== - 1);
+      var memberSyntax = (sid.indexOf('.') !== - 1);
+
+      if (memberSyntax) {
+
+        //  member selection access
+
+        parts = sid.split('.');
+        sid = parts.shift();
+        data.member = parts.shift();
+
+      } else if (arraySyntax) {
+
+        // array-access syntax. can be used to express fields in one-dimensional vectors or two-dimensional matrices.
+
+        var indices = sid.split('(');
+        sid = indices.shift();
+
+        for (var i = 0; i < indices.length; i++) {
+
+          indices[i] = parseInt(indices[i].replace(/\)/, ''));
+
+        }
+
+        data.indices = indices;
+
+      }
+
+      data.id = id;
+      data.sid = sid;
+
+      data.arraySyntax = arraySyntax;
+      data.memberSyntax = memberSyntax;
+
+      data.sampler = parseId(xml.getAttribute('source'));
+
+      return data;
+
+    }
+
+    function buildAnimation(data) {
+
+      var tracks = [];
+
+      var channels = data.channels;
+      var samplers = data.samplers;
+      var sources = data.sources;
+
+      for (var target in channels) {
+
+        if (channels.hasOwnProperty(target)) {
+
+          var channel = channels[target];
+          var sampler = samplers[channel.sampler];
+
+          var inputId = sampler.inputs.INPUT;
+          var outputId = sampler.inputs.OUTPUT;
+
+          var inputSource = sources[inputId];
+          var outputSource = sources[outputId];
+
+          var animation = buildAnimationChannel(channel, inputSource, outputSource);
+
+          createKeyframeTracks(animation, tracks);
+
+        }
+
+      }
+
+      return tracks;
+
+    }
+
+    function getAnimation(id) {
+
+      return getBuild(library.animations[id], buildAnimation);
+
+    }
+
+    function buildAnimationChannel(channel, inputSource, outputSource) {
+
+      var node = library.nodes[channel.id];
+      var object3D = getNode(node.id);
+
+      var transform = node.transforms[channel.sid];
+      var defaultMatrix = node.matrix.clone().transpose();
+
+      var time, stride;
+      var i, il, j, jl;
+
+      var data = {};
+
+      // the collada spec allows the animation of data in various ways.
+      // depending on the transform type (matrix, translate, rotate, scale), we execute different logic
+
+      switch (transform) {
+
+        case 'matrix':
+
+          for (i = 0, il = inputSource.array.length; i < il; i++) {
+
+            time = inputSource.array[i];
+            stride = i * outputSource.stride;
+
+            if (data[time] === undefined) data[time] = {};
+
+            if (channel.arraySyntax === true) {
+
+              var value = outputSource.array[stride];
+              var index = channel.indices[0] + 4 * channel.indices[1];
+
+              data[time][index] = value;
+
+            } else {
+
+              for (j = 0, jl = outputSource.stride; j < jl; j++) {
+
+                data[time][j] = outputSource.array[stride + j];
+
+              }
+
+            }
+
+          }
+
+          break;
+
+        case 'translate':
+          console.warn('THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform);
+          break;
+
+        case 'rotate':
+          console.warn('THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform);
+          break;
+
+        case 'scale':
+          console.warn('THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform);
+          break;
+
+      }
+
+      var keyframes = prepareAnimationData(data, defaultMatrix);
+
+      var animation = {
+        name: object3D.uuid,
+        keyframes: keyframes
+      };
+
+      return animation;
+
+    }
+
+    function prepareAnimationData(data, defaultMatrix) {
+
+      var keyframes = [];
+
+      // transfer data into a sortable array
+
+      for (var time in data) {
+
+        keyframes.push({ time: parseFloat(time), value: data[time] });
+
+      }
+
+      // ensure keyframes are sorted by time
+
+      keyframes.sort(ascending);
+
+      // now we clean up all animation data, so we can use them for keyframe tracks
+
+      for (var i = 0; i < 16; i++) {
+
+        transformAnimationData(keyframes, i, defaultMatrix.elements[i]);
+
+      }
+
+      return keyframes;
+
+      // array sort function
+
+      function ascending(a, b) {
+
+        return a.time - b.time;
+
+      }
+
+    }
+
+    var position = new THREE$1.Vector3();
+    var scale = new THREE$1.Vector3();
+    var quaternion = new THREE$1.Quaternion();
+
+    function createKeyframeTracks(animation, tracks) {
+
+      var keyframes = animation.keyframes;
+      var name = animation.name;
+
+      var times = [];
+      var positionData = [];
+      var quaternionData = [];
+      var scaleData = [];
+
+      for (var i = 0, l = keyframes.length; i < l; i++) {
+
+        var keyframe = keyframes[i];
+
+        var time = keyframe.time;
+        var value = keyframe.value;
+
+        matrix.fromArray(value).transpose();
+        matrix.decompose(position, quaternion, scale);
+
+        times.push(time);
+        positionData.push(position.x, position.y, position.z);
+        quaternionData.push(quaternion.x, quaternion.y, quaternion.z, quaternion.w);
+        scaleData.push(scale.x, scale.y, scale.z);
+
+      }
+
+      if (positionData.length > 0) tracks.push(new THREE$1.VectorKeyframeTrack(name + '.position', times, positionData));
+      if (quaternionData.length > 0) tracks.push(new THREE$1.QuaternionKeyframeTrack(name + '.quaternion', times, quaternionData));
+      if (scaleData.length > 0) tracks.push(new THREE$1.VectorKeyframeTrack(name + '.scale', times, scaleData));
+
+      return tracks;
+
+    }
+
+    function transformAnimationData(keyframes, property, defaultValue) {
+
+      var keyframe;
+
+      var empty = true;
+      var i, l;
+
+      // check, if values of a property are missing in our keyframes
+
+      for (i = 0, l = keyframes.length; i < l; i++) {
+
+        keyframe = keyframes[i];
+
+        if (keyframe.value[property] === undefined) {
+
+          keyframe.value[property] = null; // mark as missing
+
+        } else {
+
+          empty = false;
+
+        }
+
+      }
+
+      if (empty === true) {
+
+        // no values at all, so we set a default value
+
+        for (i = 0, l = keyframes.length; i < l; i++) {
+
+          keyframe = keyframes[i];
+
+          keyframe.value[property] = defaultValue;
+
+        }
+
+      } else {
+
+        // filling gaps
+
+        createMissingKeyframes(keyframes, property);
+
+      }
+
+    }
+
+    function createMissingKeyframes(keyframes, property) {
+
+      var prev, next;
+
+      for (var i = 0, l = keyframes.length; i < l; i++) {
+
+        var keyframe = keyframes[i];
+
+        if (keyframe.value[property] === null) {
+
+          prev = getPrev(keyframes, i, property);
+          next = getNext(keyframes, i, property);
+
+          if (prev === null) {
+
+            keyframe.value[property] = next.value[property];
+            continue;
+
+          }
+
+          if (next === null) {
+
+            keyframe.value[property] = prev.value[property];
+            continue;
+
+          }
+
+          interpolate(keyframe, prev, next, property);
+
+        }
+
+      }
+
+    }
+
+    function getPrev(keyframes, i, property) {
+
+      while (i >= 0) {
+
+        var keyframe = keyframes[i];
+
+        if (keyframe.value[property] !== null) return keyframe;
+
+        i--;
+
+      }
+
+      return null;
+
+    }
+
+    function getNext(keyframes, i, property) {
+
+      while (i < keyframes.length) {
+
+        var keyframe = keyframes[i];
+
+        if (keyframe.value[property] !== null) return keyframe;
+
+        i++;
+
+      }
+
+      return null;
+
+    }
+
+    function interpolate(key, prev, next, property) {
+
+      if ((next.time - prev.time) === 0) {
+
+        key.value[property] = prev.value[property];
+        return;
+
+      }
+
+      key.value[property] = ((key.time - prev.time) * (next.value[property] - prev.value[property]) / (next.time - prev.time)) + prev.value[property];
+
+    }
+
+    // animation clips
+
+    function parseAnimationClip(xml) {
+
+      var data = {
+        name: xml.getAttribute('id') || 'default',
+        start: parseFloat(xml.getAttribute('start') || 0),
+        end: parseFloat(xml.getAttribute('end') || 0),
+        animations: []
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'instance_animation':
+            data.animations.push(parseId(child.getAttribute('url')));
+            break;
+
+        }
+
+      }
+
+      library.clips[xml.getAttribute('id')] = data;
+
+    }
+
+    function buildAnimationClip(data) {
+
+      var tracks = [];
+
+      var name = data.name;
+      var duration = (data.end - data.start) || - 1;
+      var animations = data.animations;
+
+      for (var i = 0, il = animations.length; i < il; i++) {
+
+        var animationTracks = getAnimation(animations[i]);
+
+        for (var j = 0, jl = animationTracks.length; j < jl; j++) {
+
+          tracks.push(animationTracks[j]);
+
+        }
+
+      }
+
+      return new THREE$1.AnimationClip(name, duration, tracks);
+
+    }
+
+    function getAnimationClip(id) {
+
+      return getBuild(library.clips[id], buildAnimationClip);
+
+    }
+
+    // controller
+
+    function parseController(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'skin':
+            // there is exactly one skin per controller
+            data.id = parseId(child.getAttribute('source'));
+            data.skin = parseSkin(child);
+            break;
+
+          case 'morph':
+            data.id = parseId(child.getAttribute('source'));
+            console.warn('THREE.ColladaLoader: Morph target animation not supported yet.');
+            break;
+
+        }
+
+      }
+
+      library.controllers[xml.getAttribute('id')] = data;
+
+    }
+
+    function parseSkin(xml) {
+
+      var data = {
+        sources: {}
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'bind_shape_matrix':
+            data.bindShapeMatrix = parseFloats(child.textContent);
+            break;
+
+          case 'source':
+            var id = child.getAttribute('id');
+            data.sources[id] = parseSource(child);
+            break;
+
+          case 'joints':
+            data.joints = parseJoints(child);
+            break;
+
+          case 'vertex_weights':
+            data.vertexWeights = parseVertexWeights(child);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseJoints(xml) {
+
+      var data = {
+        inputs: {}
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'input':
+            var semantic = child.getAttribute('semantic');
+            var id = parseId(child.getAttribute('source'));
+            data.inputs[semantic] = id;
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseVertexWeights(xml) {
+
+      var data = {
+        inputs: {}
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'input':
+            var semantic = child.getAttribute('semantic');
+            var id = parseId(child.getAttribute('source'));
+            var offset = parseInt(child.getAttribute('offset'));
+            data.inputs[semantic] = { id: id, offset: offset };
+            break;
+
+          case 'vcount':
+            data.vcount = parseInts(child.textContent);
+            break;
+
+          case 'v':
+            data.v = parseInts(child.textContent);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function buildController(data) {
+
+      var build = {
+        id: data.id
+      };
+
+      var geometry = library.geometries[build.id];
+
+      if (data.skin !== undefined) {
+
+        build.skin = buildSkin(data.skin);
+
+        // we enhance the 'sources' property of the corresponding geometry with our skin data
+
+        geometry.sources.skinIndices = build.skin.indices;
+        geometry.sources.skinWeights = build.skin.weights;
+
+      }
+
+      return build;
+
+    }
+
+    function buildSkin(data) {
+
+      var BONE_LIMIT = 4;
+
+      var build = {
+        joints: [], // this must be an array to preserve the joint order
+        indices: {
+          array: [],
+          stride: BONE_LIMIT
+        },
+        weights: {
+          array: [],
+          stride: BONE_LIMIT
+        }
+      };
+
+      var sources = data.sources;
+      var vertexWeights = data.vertexWeights;
+
+      var vcount = vertexWeights.vcount;
+      var v = vertexWeights.v;
+      var jointOffset = vertexWeights.inputs.JOINT.offset;
+      var weightOffset = vertexWeights.inputs.WEIGHT.offset;
+
+      var jointSource = data.sources[data.joints.inputs.JOINT];
+      var inverseSource = data.sources[data.joints.inputs.INV_BIND_MATRIX];
+
+      var weights = sources[vertexWeights.inputs.WEIGHT.id].array;
+      var stride = 0;
+
+      var i, j, l;
+
+      // procces skin data for each vertex
+
+      for (i = 0, l = vcount.length; i < l; i++) {
+
+        var jointCount = vcount[i]; // this is the amount of joints that affect a single vertex
+        var vertexSkinData = [];
+
+        for (j = 0; j < jointCount; j++) {
+
+          var skinIndex = v[stride + jointOffset];
+          var weightId = v[stride + weightOffset];
+          var skinWeight = weights[weightId];
+
+          vertexSkinData.push({ index: skinIndex, weight: skinWeight });
+
+          stride += 2;
+
+        }
+
+        // we sort the joints in descending order based on the weights.
+        // this ensures, we only procced the most important joints of the vertex
+
+        vertexSkinData.sort(descending);
+
+        // now we provide for each vertex a set of four index and weight values.
+        // the order of the skin data matches the order of vertices
+
+        for (j = 0; j < BONE_LIMIT; j++) {
+
+          var d = vertexSkinData[j];
+
+          if (d !== undefined) {
+
+            build.indices.array.push(d.index);
+            build.weights.array.push(d.weight);
+
+          } else {
+
+            build.indices.array.push(0);
+            build.weights.array.push(0);
+
+          }
+
+        }
+
+      }
+
+      // setup bind matrix
+
+      build.bindMatrix = new THREE$1.Matrix4().fromArray(data.bindShapeMatrix).transpose();
+
+      // process bones and inverse bind matrix data
+
+      for (i = 0, l = jointSource.array.length; i < l; i++) {
+
+        var name = jointSource.array[i];
+        var boneInverse = new THREE$1.Matrix4().fromArray(inverseSource.array, i * inverseSource.stride).transpose();
+
+        build.joints.push({ name: name, boneInverse: boneInverse });
+
+      }
+
+      return build;
+
+      // array sort function
+
+      function descending(a, b) {
+
+        return b.weight - a.weight;
+
+      }
+
+    }
+
+    function getController(id) {
+
+      return getBuild(library.controllers[id], buildController);
+
+    }
+
+    // image
+
+    function parseImage(xml) {
+
+      var data = {
+        init_from: getElementsByTagName(xml, 'init_from')[0].textContent
+      };
+
+      library.images[xml.getAttribute('id')] = data;
+
+    }
+
+    function buildImage(data) {
+
+      if (data.build !== undefined) return data.build;
+
+      return data.init_from;
+
+    }
+
+    function getImage(id) {
+
+      return getBuild(library.images[id], buildImage);
+
+    }
+
+    // effect
+
+    function parseEffect(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'profile_COMMON':
+            data.profile = parseEffectProfileCOMMON(child);
+            break;
+
+        }
+
+      }
+
+      library.effects[xml.getAttribute('id')] = data;
+
+    }
+
+    function parseEffectProfileCOMMON(xml) {
+
+      var data = {
+        surfaces: {},
+        samplers: {}
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'newparam':
+            parseEffectNewparam(child, data);
+            break;
+
+          case 'technique':
+            data.technique = parseEffectTechnique(child);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseEffectNewparam(xml, data) {
+
+      var sid = xml.getAttribute('sid');
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'surface':
+            data.surfaces[sid] = parseEffectSurface(child);
+            break;
+
+          case 'sampler2D':
+            data.samplers[sid] = parseEffectSampler(child);
+            break;
+
+        }
+
+      }
+
+    }
+
+    function parseEffectSurface(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'init_from':
+            data.init_from = child.textContent;
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseEffectSampler(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'source':
+            data.source = child.textContent;
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseEffectTechnique(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'constant':
+          case 'lambert':
+          case 'blinn':
+          case 'phong':
+            data.type = child.nodeName;
+            data.parameters = parseEffectParameters(child);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseEffectParameters(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'emission':
+          case 'diffuse':
+          case 'specular':
+          case 'shininess':
+          case 'transparent':
+          case 'transparency':
+            data[child.nodeName] = parseEffectParameter(child);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseEffectParameter(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'color':
+            data[child.nodeName] = parseFloats(child.textContent);
+            break;
+
+          case 'float':
+            data[child.nodeName] = parseFloat(child.textContent);
+            break;
+
+          case 'texture':
+            data[child.nodeName] = { id: child.getAttribute('texture'), extra: parseEffectParameterTexture(child) };
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseEffectParameterTexture(xml) {
+
+      var data = {
+        technique: {}
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'extra':
+            parseEffectParameterTextureExtra(child, data);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseEffectParameterTextureExtra(xml, data) {
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'technique':
+            parseEffectParameterTextureExtraTechnique(child, data);
+            break;
+
+        }
+
+      }
+
+    }
+
+    function parseEffectParameterTextureExtraTechnique(xml, data) {
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'repeatU':
+          case 'repeatV':
+          case 'offsetU':
+          case 'offsetV':
+            data.technique[child.nodeName] = parseFloat(child.textContent);
+            break;
+
+          case 'wrapU':
+          case 'wrapV':
+
+            // some files have values for wrapU/wrapV which become NaN via parseInt
+
+            if (child.textContent.toUpperCase() === 'TRUE') {
+
+              data.technique[child.nodeName] = 1;
+
+            } else if (child.textContent.toUpperCase() === 'FALSE') {
+
+              data.technique[child.nodeName] = 0;
+
+            } else {
+
+              data.technique[child.nodeName] = parseInt(child.textContent);
+
+            }
+
+            break;
+
+        }
+
+      }
+
+    }
+
+    function buildEffect(data) {
+
+      return data;
+
+    }
+
+    function getEffect(id) {
+
+      return getBuild(library.effects[id], buildEffect);
+
+    }
+
+    // material
+
+    function parseMaterial(xml) {
+
+      var data = {
+        name: xml.getAttribute('name')
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'instance_effect':
+            data.url = parseId(child.getAttribute('url'));
+            break;
+
+        }
+
+      }
+
+      library.materials[xml.getAttribute('id')] = data;
+
+    }
+
+    function buildMaterial(data) {
+
+      var effect = getEffect(data.url);
+      var technique = effect.profile.technique;
+
+      var material;
+
+      switch (technique.type) {
+
+        case 'phong':
+        case 'blinn':
+          material = new THREE$1.MeshPhongMaterial();
+          break;
+
+        case 'lambert':
+          material = new THREE$1.MeshLambertMaterial();
+          break;
+
+        default:
+          material = new THREE$1.MeshBasicMaterial();
+          break;
+
+      }
+
+      material.name = data.name;
+
+      function getTexture(textureObject) {
+
+        var sampler = effect.profile.samplers[textureObject.id];
+
+        if (sampler !== undefined) {
+
+          var surface = effect.profile.surfaces[sampler.source];
+
+          var texture = textureLoader.load(getImage(surface.init_from));
+
+          var extra = textureObject.extra;
+
+          if (extra !== undefined && extra.technique !== undefined && isEmpty(extra.technique) === false) {
+
+            var technique = extra.technique;
+
+            texture.wrapS = technique.wrapU ? THREE$1.RepeatWrapping : THREE$1.ClampToEdgeWrapping;
+            texture.wrapT = technique.wrapV ? THREE$1.RepeatWrapping : THREE$1.ClampToEdgeWrapping;
+
+            texture.offset.set(technique.offsetU || 0, technique.offsetV || 0);
+            texture.repeat.set(technique.repeatU || 1, technique.repeatV || 1);
+
+          } else {
+
+            texture.wrapS = THREE$1.RepeatWrapping;
+            texture.wrapT = THREE$1.RepeatWrapping;
+
+          }
+
+          return texture;
+
+        }
+
+        console.error('THREE.ColladaLoader: Undefined sampler', textureObject.id);
+
+        return null;
+
+      }
+
+      var parameters = technique.parameters;
+
+      for (var key in parameters) {
+
+        var parameter = parameters[key];
+
+        switch (key) {
+
+          case 'diffuse':
+            if (parameter.color) material.color.fromArray(parameter.color);
+            if (parameter.texture) material.map = getTexture(parameter.texture);
+            break;
+          case 'specular':
+            if (parameter.color && material.specular) material.specular.fromArray(parameter.color);
+            if (parameter.texture) material.specularMap = getTexture(parameter.texture);
+            break;
+          case 'shininess':
+            if (parameter.float && material.shininess)
+              material.shininess = parameter.float;
+            break;
+          case 'emission':
+            if (parameter.color && material.emissive)
+              material.emissive.fromArray(parameter.color);
+            break;
+          case 'transparent':
+            // if ( parameter.texture ) material.alphaMap = getTexture( parameter.texture );
+            material.transparent = true;
+            break;
+          case 'transparency':
+            if (parameter.float !== undefined) material.opacity = parameter.float;
+            material.transparent = true;
+            break;
+
+        }
+
+      }
+
+      return material;
+
+    }
+
+    function getMaterial(id) {
+
+      return getBuild(library.materials[id], buildMaterial);
+
+    }
+
+    // camera
+
+    function parseCamera(xml) {
+
+      var data = {
+        name: xml.getAttribute('name')
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'optics':
+            data.optics = parseCameraOptics(child);
+            break;
+
+        }
+
+      }
+
+      library.cameras[xml.getAttribute('id')] = data;
+
+    }
+
+    function parseCameraOptics(xml) {
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        switch (child.nodeName) {
+
+          case 'technique_common':
+            return parseCameraTechnique(child);
+
+        }
+
+      }
+
+      return {};
+
+    }
+
+    function parseCameraTechnique(xml) {
+
+      var data = {};
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        switch (child.nodeName) {
+
+          case 'perspective':
+          case 'orthographic':
+
+            data.technique = child.nodeName;
+            data.parameters = parseCameraParameters(child);
+
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseCameraParameters(xml) {
+
+      var data = {};
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        switch (child.nodeName) {
+
+          case 'xfov':
+          case 'yfov':
+          case 'xmag':
+          case 'ymag':
+          case 'znear':
+          case 'zfar':
+          case 'aspect_ratio':
+            data[child.nodeName] = parseFloat(child.textContent);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function buildCamera(data) {
+
+      var camera;
+
+      switch (data.optics.technique) {
+
+        case 'perspective':
+          camera = new THREE$1.PerspectiveCamera(
+            data.optics.parameters.yfov,
+            data.optics.parameters.aspect_ratio,
+            data.optics.parameters.znear,
+            data.optics.parameters.zfar
+          );
+          break;
+
+        case 'orthographic':
+          var ymag = data.optics.parameters.ymag;
+          var xmag = data.optics.parameters.xmag;
+          var aspectRatio = data.optics.parameters.aspect_ratio;
+
+          xmag = (xmag === undefined) ? (ymag * aspectRatio) : xmag;
+          ymag = (ymag === undefined) ? (xmag / aspectRatio) : ymag;
+
+          xmag *= 0.5;
+          ymag *= 0.5;
+
+          camera = new THREE$1.OrthographicCamera(
+            - xmag, xmag, ymag, - ymag, // left, right, top, bottom
+            data.optics.parameters.znear,
+            data.optics.parameters.zfar
+          );
+          break;
+
+        default:
+          camera = new THREE$1.PerspectiveCamera();
+          break;
+
+      }
+
+      camera.name = data.name;
+
+      return camera;
+
+    }
+
+    function getCamera(id) {
+      var data = library.cameras[id];
+      if (data !== undefined) {
+        return getBuild(data, buildCamera);
+      }
+      return null;
+    }
+
+    // light
+
+    function parseLight(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'technique_common':
+            data = parseLightTechnique(child);
+            break;
+
+        }
+
+      }
+
+      library.lights[xml.getAttribute('id')] = data;
+
+    }
+
+    function parseLightTechnique(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'directional':
+          case 'point':
+          case 'spot':
+          case 'ambient':
+
+            data.technique = child.nodeName;
+            data.parameters = parseLightParameters(child);
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseLightParameters(xml) {
+
+      var data = {};
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'color':
+            var array = parseFloats(child.textContent);
+            data.color = new THREE$1.Color().fromArray(array);
+            break;
+
+          case 'falloff_angle':
+            data.falloffAngle = parseFloat(child.textContent);
+            break;
+
+          case 'quadratic_attenuation':
+            var f = parseFloat(child.textContent);
+            data.distance = f ? Math.sqrt(1 / f) : 0;
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function buildLight(data) {
+
+      var light;
+
+      switch (data.technique) {
+
+        case 'directional':
+          light = new THREE$1.DirectionalLight();
+          break;
+
+        case 'point':
+          light = new THREE$1.PointLight();
+          break;
+
+        case 'spot':
+          light = new THREE$1.SpotLight();
+          break;
+
+        case 'ambient':
+          light = new THREE$1.AmbientLight();
+          break;
+
+      }
+
+      if (data.parameters.color) light.color.copy(data.parameters.color);
+      if (data.parameters.distance) light.distance = data.parameters.distance;
+
+      return light;
+
+    }
+
+    // geometry
+
+    function parseGeometry(xml) {
+
+      var data = {
+        name: xml.getAttribute('name'),
+        sources: {},
+        vertices: {},
+        primitives: []
+      };
+
+      var mesh = getElementsByTagName(xml, 'mesh')[0];
+
+      for (var i = 0; i < mesh.childNodes.length; i++) {
+
+        var child = mesh.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        var id = child.getAttribute('id');
+
+        switch (child.nodeName) {
+
+          case 'source':
+            data.sources[id] = parseSource(child);
+            break;
+
+          case 'vertices':
+            // data.sources[ id ] = data.sources[ parseId( getElementsByTagName( child, 'input' )[ 0 ].getAttribute( 'source' ) ) ];
+            data.vertices = parseGeometryVertices(child);
+            break;
+
+          case 'polygons':
+            console.warn('THREE.ColladaLoader: Unsupported primitive type: ', child.nodeName);
+            break;
+
+          case 'lines':
+          case 'linestrips':
+          case 'polylist':
+          case 'triangles':
+            data.primitives.push(parseGeometryPrimitive(child));
+            break;
+
+          default:
+            console.log(child);
+
+        }
+
+      }
+
+      library.geometries[xml.getAttribute('id')] = data;
+
+    }
+
+    function parseSource(xml) {
+
+      var data = {
+        array: [],
+        stride: 3
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'float_array':
+            data.array = parseFloats(child.textContent);
+            break;
+
+          case 'Name_array':
+            data.array = parseStrings(child.textContent);
+            break;
+
+          case 'technique_common':
+            var accessor = getElementsByTagName(child, 'accessor')[0];
+
+            if (accessor !== undefined) {
+
+              data.stride = parseInt(accessor.getAttribute('stride'));
+
+            }
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseGeometryVertices(xml) {
+
+      var data = {};
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        data[child.getAttribute('semantic')] = parseId(child.getAttribute('source'));
+
+      }
+
+      return data;
+
+    }
+
+    function parseGeometryPrimitive(xml) {
+
+      var primitive = {
+        type: xml.nodeName,
+        material: xml.getAttribute('material'),
+        count: parseInt(xml.getAttribute('count')),
+        inputs: {},
+        stride: 0
+      };
+
+      for (var i = 0, l = xml.childNodes.length; i < l; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'input':
+            var id = parseId(child.getAttribute('source'));
+            var semantic = child.getAttribute('semantic');
+            var offset = parseInt(child.getAttribute('offset'));
+            primitive.inputs[semantic] = { id: id, offset: offset };
+            primitive.stride = Math.max(primitive.stride, offset + 1);
+            break;
+
+          case 'vcount':
+            primitive.vcount = parseInts(child.textContent);
+            break;
+
+          case 'p':
+            primitive.p = parseInts(child.textContent);
+            break;
+
+        }
+
+      }
+
+      return primitive;
+
+    }
+
+    function groupPrimitives(primitives) {
+
+      var build = {};
+
+      for (var i = 0; i < primitives.length; i++) {
+
+        var primitive = primitives[i];
+
+        if (build[primitive.type] === undefined) build[primitive.type] = [];
+
+        build[primitive.type].push(primitive);
+
+      }
+
+      return build;
+
+    }
+
+    function buildGeometry(data) {
+
+      var build = {};
+
+      var sources = data.sources;
+      var vertices = data.vertices;
+      var primitives = data.primitives;
+
+      if (primitives.length === 0) return {};
+
+      // our goal is to create one buffer geoemtry for a single type of primitives
+      // first, we group all primitives by their type
+
+      var groupedPrimitives = groupPrimitives(primitives);
+
+      for (var type in groupedPrimitives) {
+
+        // second, we create for each type of primitives (polylist,triangles or lines) a buffer geometry
+
+        build[type] = buildGeometryType(groupedPrimitives[type], sources, vertices);
+
+      }
+
+      return build;
+
+    }
+
+    function buildGeometryType(primitives, sources, vertices) {
+
+      var build = {};
+
+      var position = { array: [], stride: 0 };
+      var normal = { array: [], stride: 0 };
+      var uv = { array: [], stride: 0 };
+      var color = { array: [], stride: 0 };
+
+      var skinIndex = { array: [], stride: 4 };
+      var skinWeight = { array: [], stride: 4 };
+
+      var geometry = new THREE$1.BufferGeometry();
+
+      var materialKeys = [];
+
+      var start = 0, count = 0;
+
+      for (var p = 0; p < primitives.length; p++) {
+
+        var primitive = primitives[p];
+        var inputs = primitive.inputs;
+        var triangleCount = 1;
+
+        if (primitive.vcount && primitive.vcount[0] === 4) {
+
+          triangleCount = 2; // one quad -> two triangles
+
+        }
+
+        // groups
+
+        if (primitive.type === 'lines' || primitive.type === 'linestrips') {
+
+          count = primitive.count * 2;
+
+        } else {
+
+          count = primitive.count * 3 * triangleCount;
+
+        }
+
+        geometry.addGroup(start, count, p);
+        start += count;
+
+        // material
+
+        if (primitive.material) {
+
+          materialKeys.push(primitive.material);
+
+        }
+
+        // geometry data
+
+        for (var name in inputs) {
+
+          var input = inputs[name];
+
+          switch (name) {
+
+            case 'VERTEX':
+              for (var key in vertices) {
+
+                var id = vertices[key];
+
+                switch (key) {
+
+                  case 'POSITION':
+                    buildGeometryData(primitive, sources[id], input.offset, position.array);
+                    position.stride = sources[id].stride;
+
+                    if (sources.skinWeights && sources.skinIndices) {
+
+                      buildGeometryData(primitive, sources.skinIndices, input.offset, skinIndex.array);
+                      buildGeometryData(primitive, sources.skinWeights, input.offset, skinWeight.array);
+
+                    }
+                    break;
+
+                  case 'NORMAL':
+                    buildGeometryData(primitive, sources[id], input.offset, normal.array);
+                    normal.stride = sources[id].stride;
+                    break;
+
+                  case 'COLOR':
+                    buildGeometryData(primitive, sources[id], input.offset, color.array);
+                    color.stride = sources[id].stride;
+                    break;
+
+                  case 'TEXCOORD':
+                    buildGeometryData(primitive, sources[id], input.offset, uv.array);
+                    uv.stride = sources[id].stride;
+                    break;
+
+                  default:
+                    console.warn('THREE.ColladaLoader: Semantic "%s" not handled in geometry build process.', key);
+
+                }
+
+              }
+              break;
+
+            case 'NORMAL':
+              buildGeometryData(primitive, sources[input.id], input.offset, normal.array);
+              normal.stride = sources[input.id].stride;
+              break;
+
+            case 'COLOR':
+              buildGeometryData(primitive, sources[input.id], input.offset, color.array);
+              color.stride = sources[input.id].stride;
+              break;
+
+            case 'TEXCOORD':
+              buildGeometryData(primitive, sources[input.id], input.offset, uv.array);
+              uv.stride = sources[input.id].stride;
+              break;
+
+          }
+
+        }
+
+      }
+
+      // build geometry
+
+      if (position.array.length > 0) geometry.addAttribute('position', new THREE$1.Float32BufferAttribute(position.array, position.stride));
+      if (normal.array.length > 0) geometry.addAttribute('normal', new THREE$1.Float32BufferAttribute(normal.array, normal.stride));
+      if (color.array.length > 0) geometry.addAttribute('color', new THREE$1.Float32BufferAttribute(color.array, color.stride));
+      if (uv.array.length > 0) geometry.addAttribute('uv', new THREE$1.Float32BufferAttribute(uv.array, uv.stride));
+
+      if (skinIndex.array.length > 0) geometry.addAttribute('skinIndex', new THREE$1.Float32BufferAttribute(skinIndex.array, skinIndex.stride));
+      if (skinWeight.array.length > 0) geometry.addAttribute('skinWeight', new THREE$1.Float32BufferAttribute(skinWeight.array, skinWeight.stride));
+
+      build.data = geometry;
+      build.type = primitives[0].type;
+      build.materialKeys = materialKeys;
+
+      return build;
+
+    }
+
+    function buildGeometryData(primitive, source, offset, array) {
+
+      var indices = primitive.p;
+      var stride = primitive.stride;
+      var vcount = primitive.vcount;
+
+      function pushVector(i) {
+
+        var index = indices[i + offset] * sourceStride;
+        var length = index + sourceStride;
+
+        for (; index < length; index++) {
+
+          array.push(sourceArray[index]);
+
+        }
+
+      }
+
+      var maxcount = 0;
+
+      var sourceArray = source.array;
+      var sourceStride = source.stride;
+
+      if (primitive.vcount !== undefined) {
+
+        var index = 0;
+
+        for (var i = 0, l = vcount.length; i < l; i++) {
+
+          var count = vcount[i];
+
+          if (count === 4) {
+
+            var a = index + stride * 0;
+            var b = index + stride * 1;
+            var c = index + stride * 2;
+            var d = index + stride * 3;
+
+            pushVector(a); pushVector(b); pushVector(d);
+            pushVector(b); pushVector(c); pushVector(d);
+
+          } else if (count === 3) {
+
+            var a = index + stride * 0;
+            var b = index + stride * 1;
+            var c = index + stride * 2;
+
+            pushVector(a); pushVector(b); pushVector(c);
+
+          } else {
+
+            maxcount = Math.max(maxcount, count);
+
+          }
+
+          index += stride * count;
+
+        }
+
+        if (maxcount > 0) {
+
+          console.log('THREE.ColladaLoader: Geometry has faces with more than 4 vertices.');
+
+        }
+
+      } else {
+
+        for (var i = 0, l = indices.length; i < l; i += stride) {
+
+          pushVector(i);
+
+        }
+
+      }
+
+    }
+
+    function getGeometry(id) {
+
+      return getBuild(library.geometries[id], buildGeometry);
+
+    }
+
+    // kinematics
+
+    function parseKinematicsModel(xml) {
+
+      var data = {
+        name: xml.getAttribute('name') || '',
+        joints: {},
+        links: []
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'technique_common':
+            parseKinematicsTechniqueCommon(child, data);
+            break;
+
+        }
+
+      }
+
+      library.kinematicsModels[xml.getAttribute('id')] = data;
+
+    }
+
+    function buildKinematicsModel(data) {
+
+      if (data.build !== undefined) return data.build;
+
+      return data;
+
+    }
+
+    function getKinematicsModel(id) {
+
+      return getBuild(library.kinematicsModels[id], buildKinematicsModel);
+
+    }
+
+    function parseKinematicsTechniqueCommon(xml, data) {
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'joint':
+            data.joints[child.getAttribute('sid')] = parseKinematicsJoint(child);
+            break;
+
+          case 'link':
+            data.links.push(parseKinematicsLink(child));
+            break;
+
+        }
+
+      }
+
+    }
+
+    function parseKinematicsJoint(xml) {
+
+      var data;
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'prismatic':
+          case 'revolute':
+            data = parseKinematicsJointParameter(child);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseKinematicsJointParameter(xml, data) {
+
+      var data = {
+        sid: xml.getAttribute('sid'),
+        name: xml.getAttribute('name') || '',
+        axis: new THREE$1.Vector3(),
+        limits: {
+          min: 0,
+          max: 0
+        },
+        type: xml.nodeName,
+        static: false,
+        zeroPosition: 0,
+        middlePosition: 0
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'axis':
+            var array = parseFloats(child.textContent);
+            data.axis.fromArray(array);
+            break;
+          case 'limits':
+            var max = child.getElementsByTagName('max')[0];
+            var min = child.getElementsByTagName('min')[0];
+
+            data.limits.max = parseFloat(max.textContent);
+            data.limits.min = parseFloat(min.textContent);
+            break;
+
+        }
+
+      }
+
+      // if min is equal to or greater than max, consider the joint static
+
+      if (data.limits.min >= data.limits.max) {
+
+        data.static = true;
+
+      }
+
+      // calculate middle position
+
+      data.middlePosition = (data.limits.min + data.limits.max) / 2.0;
+
+      return data;
+
+    }
+
+    function parseKinematicsLink(xml) {
+
+      var data = {
+        sid: xml.getAttribute('sid'),
+        name: xml.getAttribute('name') || '',
+        attachments: [],
+        transforms: []
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'attachment_full':
+            data.attachments.push(parseKinematicsAttachment(child));
+            break;
+
+          case 'matrix':
+          case 'translate':
+          case 'rotate':
+            data.transforms.push(parseKinematicsTransform(child));
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseKinematicsAttachment(xml) {
+
+      var data = {
+        joint: xml.getAttribute('joint').split('/').pop(),
+        transforms: [],
+        links: []
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'link':
+            data.links.push(parseKinematicsLink(child));
+            break;
+
+          case 'matrix':
+          case 'translate':
+          case 'rotate':
+            data.transforms.push(parseKinematicsTransform(child));
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function parseKinematicsTransform(xml) {
+
+      var data = {
+        type: xml.nodeName
+      };
+
+      var array = parseFloats(xml.textContent);
+
+      switch (data.type) {
+
+        case 'matrix':
+          data.obj = new THREE$1.Matrix4();
+          data.obj.fromArray(array).transpose();
+          break;
+
+        case 'translate':
+          data.obj = new THREE$1.Vector3();
+          data.obj.fromArray(array);
+          break;
+
+        case 'rotate':
+          data.obj = new THREE$1.Vector3();
+          data.obj.fromArray(array);
+          data.angle = THREE$1.Math.degToRad(array[3]);
+          break;
+
+      }
+
+      return data;
+
+    }
+
+    function parseKinematicsScene(xml) {
+
+      var data = {
+        bindJointAxis: []
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'bind_joint_axis':
+            data.bindJointAxis.push(parseKinematicsBindJointAxis(child));
+            break;
+
+        }
+
+      }
+
+      library.kinematicsScenes[parseId(xml.getAttribute('url'))] = data;
+
+    }
+
+    function parseKinematicsBindJointAxis(xml) {
+
+      var data = {
+        target: xml.getAttribute('target').split('/').pop()
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'axis':
+            var param = child.getElementsByTagName('param')[0];
+            data.axis = param.textContent;
+            var tmpJointIndex = data.axis.split('inst_').pop().split('axis')[0];
+            data.jointIndex = tmpJointIndex.substr(0, tmpJointIndex.length - 1);
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function buildKinematicsScene(data) {
+
+      if (data.build !== undefined) return data.build;
+
+      return data;
+
+    }
+
+    function getKinematicsScene(id) {
+
+      return getBuild(library.kinematicsScenes[id], buildKinematicsScene);
+
+    }
+
+    function setupKinematics() {
+
+      var kinematicsModelId = Object.keys(library.kinematicsModels)[0];
+      var kinematicsSceneId = Object.keys(library.kinematicsScenes)[0];
+      var visualSceneId = Object.keys(library.visualScenes)[0];
+
+      if (kinematicsModelId === undefined || kinematicsSceneId === undefined) return;
+
+      var kinematicsModel = getKinematicsModel(kinematicsModelId);
+      var kinematicsScene = getKinematicsScene(kinematicsSceneId);
+      var visualScene = getVisualScene(visualSceneId);
+
+      var bindJointAxis = kinematicsScene.bindJointAxis;
+      var jointMap = {};
+
+      for (var i = 0, l = bindJointAxis.length; i < l; i++) {
+
+        var axis = bindJointAxis[i];
+
+        // the result of the following query is an element of type 'translate', 'rotate','scale' or 'matrix'
+
+        var targetElement = collada.querySelector('[sid="' + axis.target + '"]');
+
+        if (targetElement) {
+
+          // get the parent of the transfrom element
+
+          var parentVisualElement = targetElement.parentElement;
+
+          // connect the joint of the kinematics model with the element in the visual scene
+
+          connect(axis.jointIndex, parentVisualElement);
+
+        }
+
+      }
+
+      function connect(jointIndex, visualElement) {
+
+        var visualElementName = visualElement.getAttribute('name');
+        var joint = kinematicsModel.joints[jointIndex];
+
+        visualScene.traverse(function (object) {
+
+          if (object.name === visualElementName) {
+
+            jointMap[jointIndex] = {
+              object: object,
+              transforms: buildTransformList(visualElement),
+              joint: joint,
+              position: joint.zeroPosition
+            };
+
+          }
+
+        });
+
+      }
+
+      var m0 = new THREE$1.Matrix4();
+
+      kinematics = {
+
+        joints: kinematicsModel && kinematicsModel.joints,
+
+        getJointValue: function (jointIndex) {
+
+          var jointData = jointMap[jointIndex];
+
+          if (jointData) {
+
+            return jointData.position;
+
+          } else {
+
+            console.warn('THREE.ColladaLoader: Joint ' + jointIndex + ' doesn\'t exist.');
+
+          }
+
+        },
+
+        setJointValue: function (jointIndex, value) {
+
+          var jointData = jointMap[jointIndex];
+
+          if (jointData) {
+
+            var joint = jointData.joint;
+
+            if (value > joint.limits.max || value < joint.limits.min) {
+
+              console.warn('THREE.ColladaLoader: Joint ' + jointIndex + ' value ' + value + ' outside of limits (min: ' + joint.limits.min + ', max: ' + joint.limits.max + ').');
+
+            } else if (joint.static) {
+
+              console.warn('THREE.ColladaLoader: Joint ' + jointIndex + ' is static.');
+
+            } else {
+
+              var object = jointData.object;
+              var axis = joint.axis;
+              var transforms = jointData.transforms;
+
+              matrix.identity();
+
+              // each update, we have to apply all transforms in the correct order
+
+              for (var i = 0; i < transforms.length; i++) {
+
+                var transform = transforms[i];
+
+                // if there is a connection of the transform node with a joint, apply the joint value
+
+                if (transform.sid && transform.sid.indexOf(jointIndex) !== - 1) {
+
+                  switch (joint.type) {
+
+                    case 'revolute':
+                      matrix.multiply(m0.makeRotationAxis(axis, THREE$1.Math.degToRad(value)));
+                      break;
+
+                    case 'prismatic':
+                      matrix.multiply(m0.makeTranslation(axis.x * value, axis.y * value, axis.z * value));
+                      break;
+
+                    default:
+                      console.warn('THREE.ColladaLoader: Unknown joint type: ' + joint.type);
+                      break;
+
+                  }
+
+                } else {
+
+                  switch (transform.type) {
+
+                    case 'matrix':
+                      matrix.multiply(transform.obj);
+                      break;
+
+                    case 'translate':
+                      matrix.multiply(m0.makeTranslation(transform.obj.x, transform.obj.y, transform.obj.z));
+                      break;
+
+                    case 'scale':
+                      matrix.scale(transform.obj);
+                      break;
+
+                    case 'rotate':
+                      matrix.multiply(m0.makeRotationAxis(transform.obj, transform.angle));
+                      break;
+
+                  }
+
+                }
+
+              }
+
+              object.matrix.copy(matrix);
+              object.matrix.decompose(object.position, object.quaternion, object.scale);
+
+              jointMap[jointIndex].position = value;
+
+            }
+
+          } else {
+
+            console.log('THREE.ColladaLoader: ' + jointIndex + ' does not exist.');
+
+          }
+
+        }
+
+      };
+
+    }
+
+    function buildTransformList(node) {
+
+      var transforms = [];
+
+      var xml = collada.querySelector('[id="' + node.id + '"]');
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'matrix':
+            var array = parseFloats(child.textContent);
+            var matrix = new THREE$1.Matrix4().fromArray(array).transpose();
+            transforms.push({
+              sid: child.getAttribute('sid'),
+              type: child.nodeName,
+              obj: matrix
+            });
+            break;
+
+          case 'translate':
+          case 'scale':
+            var array = parseFloats(child.textContent);
+            var vector = new THREE$1.Vector3().fromArray(array);
+            transforms.push({
+              sid: child.getAttribute('sid'),
+              type: child.nodeName,
+              obj: vector
+            });
+            break;
+
+          case 'rotate':
+            var array = parseFloats(child.textContent);
+            var vector = new THREE$1.Vector3().fromArray(array);
+            var angle = THREE$1.Math.degToRad(array[3]);
+            transforms.push({
+              sid: child.getAttribute('sid'),
+              type: child.nodeName,
+              obj: vector,
+              angle: angle
+            });
+            break;
+
+        }
+
+      }
+
+      return transforms;
+
+    }
+
+    // nodes
+
+    function prepareNodes(xml) {
+
+      var elements = xml.getElementsByTagName('node');
+
+      // ensure all node elements have id attributes
+
+      for (var i = 0; i < elements.length; i++) {
+
+        var element = elements[i];
+
+        if (element.hasAttribute('id') === false) {
+
+          element.setAttribute('id', generateId());
+
+        }
+
+      }
+
+    }
+
+    var matrix = new THREE$1.Matrix4();
+    var vector = new THREE$1.Vector3();
+
+    function parseNode(xml) {
+
+      var data = {
+        name: xml.getAttribute('name') || '',
+        type: xml.getAttribute('type'),
+        id: xml.getAttribute('id'),
+        sid: xml.getAttribute('sid'),
+        matrix: new THREE$1.Matrix4(),
+        nodes: [],
+        instanceCameras: [],
+        instanceControllers: [],
+        instanceLights: [],
+        instanceGeometries: [],
+        instanceNodes: [],
+        transforms: {}
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        if (child.nodeType !== 1) continue;
+
+        switch (child.nodeName) {
+
+          case 'node':
+            data.nodes.push(child.getAttribute('id'));
+            parseNode(child);
+            break;
+
+          case 'instance_camera':
+            data.instanceCameras.push(parseId(child.getAttribute('url')));
+            break;
+
+          case 'instance_controller':
+            data.instanceControllers.push(parseNodeInstance(child));
+            break;
+
+          case 'instance_light':
+            data.instanceLights.push(parseId(child.getAttribute('url')));
+            break;
+
+          case 'instance_geometry':
+            data.instanceGeometries.push(parseNodeInstance(child));
+            break;
+
+          case 'instance_node':
+            data.instanceNodes.push(parseId(child.getAttribute('url')));
+            break;
+
+          case 'matrix':
+            var array = parseFloats(child.textContent);
+            data.matrix.multiply(matrix.fromArray(array).transpose());
+            data.transforms[child.getAttribute('sid')] = child.nodeName;
+            break;
+
+          case 'translate':
+            var array = parseFloats(child.textContent);
+            vector.fromArray(array);
+            data.matrix.multiply(matrix.makeTranslation(vector.x, vector.y, vector.z));
+            data.transforms[child.getAttribute('sid')] = child.nodeName;
+            break;
+
+          case 'rotate':
+            var array = parseFloats(child.textContent);
+            var angle = THREE$1.Math.degToRad(array[3]);
+            data.matrix.multiply(matrix.makeRotationAxis(vector.fromArray(array), angle));
+            data.transforms[child.getAttribute('sid')] = child.nodeName;
+            break;
+
+          case 'scale':
+            var array = parseFloats(child.textContent);
+            data.matrix.scale(vector.fromArray(array));
+            data.transforms[child.getAttribute('sid')] = child.nodeName;
+            break;
+
+          case 'extra':
+            break;
+
+          default:
+            console.log(child);
+
+        }
+
+      }
+
+      library.nodes[data.id] = data;
+
+      return data;
+
+    }
+
+    function parseNodeInstance(xml) {
+
+      var data = {
+        id: parseId(xml.getAttribute('url')),
+        materials: {},
+        skeletons: []
+      };
+
+      for (var i = 0; i < xml.childNodes.length; i++) {
+
+        var child = xml.childNodes[i];
+
+        switch (child.nodeName) {
+
+          case 'bind_material':
+            var instances = child.getElementsByTagName('instance_material');
+
+            for (var j = 0; j < instances.length; j++) {
+
+              var instance = instances[j];
+              var symbol = instance.getAttribute('symbol');
+              var target = instance.getAttribute('target');
+
+              data.materials[symbol] = parseId(target);
+
+            }
+
+            break;
+
+          case 'skeleton':
+            data.skeletons.push(parseId(child.textContent));
+            break;
+
+          default:
+            break;
+
+        }
+
+      }
+
+      return data;
+
+    }
+
+    function buildSkeleton(skeletons, joints) {
+
+      var boneData = [];
+      var sortedBoneData = [];
+
+      var i, j, data;
+
+      // a skeleton can have multiple root bones. collada expresses this
+      // situtation with multiple "skeleton" tags per controller instance
+
+      for (i = 0; i < skeletons.length; i++) {
+
+        var skeleton = skeletons[i];
+        var root = getNode(skeleton);
+
+        // setup bone data for a single bone hierarchy
+
+        buildBoneHierarchy(root, joints, boneData);
+
+      }
+
+      // sort bone data (the order is defined in the corresponding controller)
+
+      for (i = 0; i < joints.length; i++) {
+
+        for (j = 0; j < boneData.length; j++) {
+
+          data = boneData[j];
+
+          if (data.bone.name === joints[i].name) {
+
+            sortedBoneData[i] = data;
+            data.processed = true;
+            break;
+
+          }
+
+        }
+
+      }
+
+      // add unprocessed bone data at the end of the list
+
+      for (i = 0; i < boneData.length; i++) {
+
+        data = boneData[i];
+
+        if (data.processed === false) {
+
+          sortedBoneData.push(data);
+          data.processed = true;
+
+        }
+
+      }
+
+      // setup arrays for skeleton creation
+
+      var bones = [];
+      var boneInverses = [];
+
+      for (i = 0; i < sortedBoneData.length; i++) {
+
+        data = sortedBoneData[i];
+
+        bones.push(data.bone);
+        boneInverses.push(data.boneInverse);
+
+      }
+
+      return new THREE$1.Skeleton(bones, boneInverses);
+
+    }
+
+    function buildBoneHierarchy(root, joints, boneData) {
+
+      // setup bone data from visual scene
+
+      root.traverse(function (object) {
+
+        if (object.isBone === true) {
+
+          var boneInverse;
+
+          // retrieve the boneInverse from the controller data
+
+          for (var i = 0; i < joints.length; i++) {
+
+            var joint = joints[i];
+
+            if (joint.name === object.name) {
+
+              boneInverse = joint.boneInverse;
+              break;
+
+            }
+
+          }
+
+          if (boneInverse === undefined) {
+
+            // Unfortunately, there can be joints in the visual scene that are not part of the
+            // corresponding controller. In this case, we have to create a dummy boneInverse matrix
+            // for the respective bone. This bone won't affect any vertices, because there are no skin indices
+            // and weights defined for it. But we still have to add the bone to the sorted bone list in order to
+            // ensure a correct animation of the model.
+
+            boneInverse = new THREE$1.Matrix4();
+
+          }
+
+          boneData.push({ bone: object, boneInverse: boneInverse, processed: false });
+
+        }
+
+      });
+
+    }
+
+    function buildNode(data) {
+
+      var objects = [];
+
+      var matrix = data.matrix;
+      var nodes = data.nodes;
+      var type = data.type;
+      var instanceCameras = data.instanceCameras;
+      var instanceControllers = data.instanceControllers;
+      var instanceLights = data.instanceLights;
+      var instanceGeometries = data.instanceGeometries;
+      var instanceNodes = data.instanceNodes;
+
+      // nodes
+
+      for (var i = 0, l = nodes.length; i < l; i++) {
+
+        objects.push(getNode(nodes[i]));
+
+      }
+
+      // instance cameras
+
+      for (var i = 0, l = instanceCameras.length; i < l; i++) {
+
+        var instanceCamera = getCamera(instanceCameras[i]);
+
+        if (instanceCamera !== null) {
+
+          objects.push(instanceCamera.clone());
+
+        }
+
+
+      }
+
+      // instance controllers
+
+      for (var i = 0, l = instanceControllers.length; i < l; i++) {
+
+        var instance = instanceControllers[i];
+        var controller = getController(instance.id);
+        var geometries = getGeometry(controller.id);
+        var newObjects = buildObjects(geometries, instance.materials);
+
+        var skeletons = instance.skeletons;
+        var joints = controller.skin.joints;
+
+        var skeleton = buildSkeleton(skeletons, joints);
+
+        for (var j = 0, jl = newObjects.length; j < jl; j++) {
+
+          var object = newObjects[j];
+
+          if (object.isSkinnedMesh) {
+
+            object.bind(skeleton, controller.skin.bindMatrix);
+            object.normalizeSkinWeights();
+
+          }
+
+          objects.push(object);
+
+        }
+
+      }
+
+      // instance lights
+
+      for (var i = 0, l = instanceLights.length; i < l; i++) {
+        var instanceCamera = getCamera(instanceCameras[i]);
+
+        if (instanceCamera !== null) {
+
+          objects.push(instanceCamera.clone());
+
+        }
+
+      }
+
+      // instance geometries
+
+      for (var i = 0, l = instanceGeometries.length; i < l; i++) {
+
+        var instance = instanceGeometries[i];
+
+        // a single geometry instance in collada can lead to multiple object3Ds.
+        // this is the case when primitives are combined like triangles and lines
+
+        var geometries = getGeometry(instance.id);
+        var newObjects = buildObjects(geometries, instance.materials);
+
+        for (var j = 0, jl = newObjects.length; j < jl; j++) {
+
+          objects.push(newObjects[j]);
+
+        }
+
+      }
+
+      // instance nodes
+
+      for (var i = 0, l = instanceNodes.length; i < l; i++) {
+
+        objects.push(getNode(instanceNodes[i]).clone());
+
+      }
+
+      var object;
+
+      if (nodes.length === 0 && objects.length === 1) {
+
+        object = objects[0];
+
+      } else {
+
+        object = (type === 'JOINT') ? new THREE$1.Bone() : new THREE$1.Group();
+
+        for (var i = 0; i < objects.length; i++) {
+
+          object.add(objects[i]);
+
+        }
+
+      }
+
+      object.name = (type === 'JOINT') ? data.sid : data.name;
+      object.matrix.copy(matrix);
+      object.matrix.decompose(object.position, object.quaternion, object.scale);
+
+      return object;
+
+    }
+
+    function resolveMaterialBinding(keys, instanceMaterials) {
+
+      var materials = [];
+
+      for (var i = 0, l = keys.length; i < l; i++) {
+
+        var id = instanceMaterials[keys[i]];
+        materials.push(getMaterial(id));
+
+      }
+
+      return materials;
+
+    }
+
+    function buildObjects(geometries, instanceMaterials) {
+
+      var objects = [];
+
+      for (var type in geometries) {
+
+        var geometry = geometries[type];
+
+        var materials = resolveMaterialBinding(geometry.materialKeys, instanceMaterials);
+
+        // handle case if no materials are defined
+
+        if (materials.length === 0) {
+
+          if (type === 'lines' || type === 'linestrips') {
+
+            materials.push(new THREE$1.LineBasicMaterial());
+
+          } else {
+
+            materials.push(new THREE$1.MeshPhongMaterial());
+
+          }
+
+        }
+
+        // regard skinning
+
+        var skinning = (geometry.data.attributes.skinIndex !== undefined);
+
+        if (skinning) {
+
+          for (var i = 0, l = materials.length; i < l; i++) {
+
+            materials[i].skinning = true;
+
+          }
+
+        }
+
+        // choose between a single or multi materials (material array)
+
+        var material = (materials.length === 1) ? materials[0] : materials;
+
+        // now create a specific 3D object
+
+        var object;
+
+        switch (type) {
+
+          case 'lines':
+            object = new THREE$1.LineSegments(geometry.data, material);
+            break;
+
+          case 'linestrips':
+            object = new THREE$1.Line(geometry.data, material);
+            break;
+
+          case 'triangles':
+          case 'polylist':
+            if (skinning) {
+
+              object = new THREE$1.SkinnedMesh(geometry.data, material);
+
+            } else {
+
+              object = new THREE$1.Mesh(geometry.data, material);
+
+            }
+            break;
+
+        }
+
+        objects.push(object);
+
+      }
+
+      return objects;
+
+    }
+
+    function getNode(id) {
+
+      return getBuild(library.nodes[id], buildNode);
+
+    }
+
+    // visual scenes
+
+    function parseVisualScene(xml) {
+
+      var data = {
+        name: xml.getAttribute('name'),
+        children: []
+      };
+
+      prepareNodes(xml);
+
+      var elements = getElementsByTagName(xml, 'node');
+
+      for (var i = 0; i < elements.length; i++) {
+
+        data.children.push(parseNode(elements[i]));
+
+      }
+
+      library.visualScenes[xml.getAttribute('id')] = data;
+
+    }
+
+    function buildVisualScene(data) {
+
+      var group = new THREE$1.Group();
+      group.name = data.name;
+
+      var children = data.children;
+
+      for (var i = 0; i < children.length; i++) {
+
+        var child = children[i];
+
+        if (child.id === null) {
+
+          group.add(buildNode(child));
+
+        } else {
+
+          // if there is an ID, let's try to get the finished build (e.g. joints are already build)
+
+          group.add(getNode(child.id));
+
+        }
+
+      }
+
+      return group;
+
+    }
+
+    function getVisualScene(id) {
+
+      return getBuild(library.visualScenes[id], buildVisualScene);
+
+    }
+
+    // scenes
+
+    function parseScene(xml) {
+
+      var instance = getElementsByTagName(xml, 'instance_visual_scene')[0];
+      return getVisualScene(parseId(instance.getAttribute('url')));
+
+    }
+
+    function setupAnimations() {
+
+      var clips = library.clips;
+
+      if (isEmpty(clips) === true) {
+
+        if (isEmpty(library.animations) === false) {
+
+          // if there are animations but no clips, we create a default clip for playback
+
+          var tracks = [];
+
+          for (var id in library.animations) {
+
+            var animationTracks = getAnimation(id);
+
+            for (var i = 0, l = animationTracks.length; i < l; i++) {
+
+              tracks.push(animationTracks[i]);
+
+            }
+
+          }
+
+          animations.push(new THREE$1.AnimationClip('default', - 1, tracks));
+
+        }
+
+      } else {
+
+        for (var id in clips) {
+
+          animations.push(getAnimationClip(id));
+
+        }
+
+      }
+
+    }
+
+    console.time('THREE.ColladaLoader');
+
+    if (text.length === 0) {
+
+      return { scene: new THREE$1.Scene() };
+
+    }
+
+    console.time('THREE.ColladaLoader: DOMParser');
+
+    var xml = new DOMParser().parseFromString(text, 'application/xml');
+
+    console.timeEnd('THREE.ColladaLoader: DOMParser');
+
+    var collada = getElementsByTagName(xml, 'COLLADA')[0];
+
+    // metadata
+
+    var version = collada.getAttribute('version');
+    console.log('THREE.ColladaLoader: File version', version);
+
+    var asset = parseAsset(getElementsByTagName(collada, 'asset')[0]);
+    var textureLoader = new THREE$1.TextureLoader(this.manager);
+    textureLoader.setPath(path).setCrossOrigin(this.crossOrigin);
+
+    //
+
+    var animations = [];
+    var kinematics = {};
+    var count = 0;
+
+    //
+
+    var library = {
+      animations: {},
+      clips: {},
+      controllers: {},
+      images: {},
+      effects: {},
+      materials: {},
+      cameras: {},
+      lights: {},
+      geometries: {},
+      nodes: {},
+      visualScenes: {},
+      kinematicsModels: {},
+      kinematicsScenes: {}
+    };
+
+    console.time('THREE.ColladaLoader: Parse');
+
+    parseLibrary(collada, 'library_animations', 'animation', parseAnimation);
+    parseLibrary(collada, 'library_animation_clips', 'animation_clip', parseAnimationClip);
+    parseLibrary(collada, 'library_controllers', 'controller', parseController);
+    parseLibrary(collada, 'library_images', 'image', parseImage);
+    parseLibrary(collada, 'library_effects', 'effect', parseEffect);
+    parseLibrary(collada, 'library_materials', 'material', parseMaterial);
+    parseLibrary(collada, 'library_cameras', 'camera', parseCamera);
+    parseLibrary(collada, 'library_lights', 'light', parseLight);
+    parseLibrary(collada, 'library_geometries', 'geometry', parseGeometry);
+    parseLibrary(collada, 'library_nodes', 'node', parseNode);
+    parseLibrary(collada, 'library_visual_scenes', 'visual_scene', parseVisualScene);
+    parseLibrary(collada, 'library_kinematics_models', 'kinematics_model', parseKinematicsModel);
+    parseLibrary(collada, 'scene', 'instance_kinematics_scene', parseKinematicsScene);
+
+    console.timeEnd('THREE.ColladaLoader: Parse');
+
+    console.time('THREE.ColladaLoader: Build');
+
+    buildLibrary(library.animations, buildAnimation);
+    buildLibrary(library.clips, buildAnimationClip);
+    buildLibrary(library.controllers, buildController);
+    buildLibrary(library.images, buildImage);
+    buildLibrary(library.effects, buildEffect);
+    buildLibrary(library.materials, buildMaterial);
+    buildLibrary(library.cameras, buildCamera);
+    buildLibrary(library.lights, buildLight);
+    buildLibrary(library.geometries, buildGeometry);
+    buildLibrary(library.visualScenes, buildVisualScene);
+
+    console.timeEnd('THREE.ColladaLoader: Build');
+
+    setupAnimations();
+    setupKinematics();
+
+    var scene = parseScene(getElementsByTagName(collada, 'scene')[0]);
+
+    /*
+     * up_axis of some robot models in ROS world aren't properly set because
+     * rviz ignores this field. Thus, ignores Z_UP to show urdfs just like rviz.
+     * See https://github.com/ros-visualization/rviz/issues/1045 for the detail
+      if ( asset.upAxis === 'Z_UP' ) {
+
+        scene.rotation.x = - Math.PI / 2;
+
+      }
+     */
+
+    scene.scale.multiplyScalar(asset.unit);
+
+    console.timeEnd('THREE.ColladaLoader');
+
+    return {
+      animations: animations,
+      kinematics: kinematics,
+      library: library,
+      scene: scene
+    };
+
+  }
+
+};
+
+/**
+ * @author Jihoon Lee - jihoonlee.in@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class MeshResource extends THREE$1.Object3D {
+
+  /**
+   * A MeshResource is an THREE object that will load from a external mesh file. Currently loads
+   * Collada files.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * path (optional) - the base path to the associated models that will be loaded
+   *  * resource - the resource file name to load
+   *  * material (optional) - the material to use for the object
+   *  * warnings (optional) - if warnings should be printed
+   */
+  constructor(options) {
+    super();
+    var that = this;
+    options = options || {};
+    var path = options.path || '/';
+    var resource = options.resource;
+    var material = options.material || null;
+    this.warnings = options.warnings;
+
+
+    // check for a trailing '/'
+    if (path.substr(path.length - 1) !== '/') {
+      path += '/';
+    }
+
+    var uri = path + resource;
+    var fileType = uri.substr(-4).toLowerCase();
+
+    // check the type
+    var loader;
+    if (fileType === '.dae') {
+      loader = new THREE$1.ColladaLoader();
+      loader.log = function(message) {
+        if (that.warnings) {
+          console.warn(message);
+        }
+      };
+      loader.load(
+        uri,
+        function colladaReady(collada) {
+          // check for a scale factor in ColladaLoader2
+          // add a texture to anything that is missing one
+          if(material !== null) {
+            collada.scene.traverse(function(child) {
+              if(child instanceof THREE$1.Mesh) {
+                if(child.material === undefined) {
+                  child.material = material;
+                }
+              }
+            });
+          }
+
+          that.add(collada.scene);
+        },
+        /*onProgress=*/null,
+        function onLoadError(error) {
+          console.error(error);
+        });
+    } else if (fileType === '.stl') {
+      loader = new THREE$1.STLLoader();
+      {
+        loader.load(uri,
+                    function ( geometry ) {
+                      geometry.computeFaceNormals();
+                      var mesh;
+                      if(material !== null) {
+                        mesh = new THREE$1.Mesh( geometry, material );
+                      } else {
+                        mesh = new THREE$1.Mesh( geometry,
+                                               new THREE$1.MeshBasicMaterial( { color: 0x999999 } ) );
+                      }
+                      that.add(mesh);
+                    },
+                    /*onProgress=*/null,
+                    function onLoadError(error) {
+                      console.error(error);
+                    });
+      }
+    }
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class TriangleList extends THREE$1.Object3D {
+
+  /**
+   * A TriangleList is a THREE object that can be used to display a list of triangles as a geometry.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * material (optional) - the material to use for the object
+   *   * vertices - the array of vertices to use
+   *   * colors - the associated array of colors to use
+   */
+  constructor(options) {
+    options = options || {};
+    var material = options.material || new THREE$1.MeshBasicMaterial();
+    var vertices = options.vertices;
+    var colors = options.colors;
+
+    super();
+
+    // set the material to be double sided
+    material.side = THREE$1.DoubleSide;
+
+    // construct the geometry
+    var geometry = new THREE$1.Geometry();
+    for (i = 0; i < vertices.length; i++) {
+      geometry.vertices.push(new THREE$1.Vector3(vertices[i].x, vertices[i].y, vertices[i].z));
+    }
+
+    // set the colors
+    var i, j;
+    if (colors.length === vertices.length) {
+      // use per-vertex color
+      for (i = 0; i < vertices.length; i += 3) {
+        var faceVert = new THREE$1.Face3(i, i + 1, i + 2);
+        for (j = i * 3; j < i * 3 + 3; i++) {
+          var color = new THREE$1.Color();
+          color.setRGB(colors[i].r, colors[i].g, colors[i].b);
+          faceVert.vertexColors.push(color);
+        }
+        geometry.faces.push(faceVert);
+      }
+      material.vertexColors = THREE$1.VertexColors;
+    } else if (colors.length === vertices.length / 3) {
+      // use per-triangle color
+      for (i = 0; i < vertices.length; i += 3) {
+        var faceTri = new THREE$1.Face3(i, i + 1, i + 2);
+        faceTri.color.setRGB(colors[i / 3].r, colors[i / 3].g, colors[i / 3].b);
+        geometry.faces.push(faceTri);
+      }
+      material.vertexColors = THREE$1.FaceColors;
+    } else {
+      // use marker color
+      for (i = 0; i < vertices.length; i += 3) {
+        var face = new THREE$1.Face3(i, i + 1, i + 2);
+        geometry.faces.push(face);
+      }
+    }
+
+    geometry.computeBoundingBox();
+    geometry.computeBoundingSphere();
+    geometry.computeFaceNormals();
+
+    this.add(new THREE$1.Mesh(geometry, material));
+  };
+
+  /**
+   * Set the color of this object to the given hex value.
+   *
+   * @param hex - the hex value of the color to set
+   */
+  setColor(hex) {
+    this.mesh.material.color.setHex(hex);
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class Marker extends THREE$1.Object3D {
+
+  /**
+   * A Marker can convert a ROS marker message into a THREE object.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * path - the base path or URL for any mesh files that will be loaded for this marker
+   *   * message - the marker message
+   */
+  constructor(options) {
+    super();
+
+    options = options || {};
+    var path = options.path || '/';
+    var message = options.message;
+
+    // check for a trailing '/'
+    if (path.substr(path.length - 1) !== '/') {
+      path += '/';
+    }
+
+    if(message.scale) {
+      this.msgScale = [message.scale.x, message.scale.y, message.scale.z];
+    }
+    else {
+      this.msgScale = [1,1,1];
+    }
+    this.msgColor = message.color;
+    this.msgMesh = undefined;
+
+    // set the pose and get the color
+    this.setPose(message.pose);
+    var colorMaterial = makeColorMaterial(this.msgColor.r,
+        this.msgColor.g, this.msgColor.b, this.msgColor.a);
+
+    // create the object based on the type
+    switch (message.type) {
+      case MARKER_ARROW:
+        // get the sizes for the arrow
+        var len = message.scale.x;
+        var headLength = len * 0.23;
+        var headDiameter = message.scale.y;
+        var shaftDiameter = headDiameter * 0.5;
+
+        // determine the points
+        var direction, p1 = null;
+        if (message.points.length === 2) {
+          p1 = new THREE$1.Vector3(message.points[0].x, message.points[0].y, message.points[0].z);
+          var p2 = new THREE$1.Vector3(message.points[1].x, message.points[1].y, message.points[1].z);
+          direction = p1.clone().negate().add(p2);
+          // direction = p2 - p1;
+          len = direction.length();
+          headDiameter = message.scale.y;
+          shaftDiameter = message.scale.x;
+
+          if (message.scale.z !== 0.0) {
+            headLength = message.scale.z;
+          }
+        }
+
+        // add the marker
+        this.add(new Arrow({
+          direction : direction,
+          origin : p1,
+          length : len,
+          headLength : headLength,
+          shaftDiameter : shaftDiameter,
+          headDiameter : headDiameter,
+          material : colorMaterial
+        }));
+        break;
+      case MARKER_CUBE:
+        // set the cube dimensions
+        var cubeGeom = new THREE$1.BoxGeometry(message.scale.x, message.scale.y, message.scale.z);
+        this.add(new THREE$1.Mesh(cubeGeom, colorMaterial));
+        break;
+      case MARKER_SPHERE:
+        // set the sphere dimensions
+        var sphereGeom = new THREE$1.SphereGeometry(0.5);
+        var sphereMesh = new THREE$1.Mesh(sphereGeom, colorMaterial);
+        sphereMesh.scale.x = message.scale.x;
+        sphereMesh.scale.y = message.scale.y;
+        sphereMesh.scale.z = message.scale.z;
+        this.add(sphereMesh);
+        break;
+      case MARKER_CYLINDER:
+        // set the cylinder dimensions
+        var cylinderGeom = new THREE$1.CylinderGeometry(0.5, 0.5, 1, 16, 1, false);
+        var cylinderMesh = new THREE$1.Mesh(cylinderGeom, colorMaterial);
+        cylinderMesh.quaternion.setFromAxisAngle(new THREE$1.Vector3(1, 0, 0), Math.PI * 0.5);
+        cylinderMesh.scale.set(message.scale.x, message.scale.z, message.scale.y);
+        this.add(cylinderMesh);
+        break;
+      case MARKER_LINE_STRIP:
+        var lineStripGeom = new THREE$1.Geometry();
+        var lineStripMaterial = new THREE$1.LineBasicMaterial({
+          size : message.scale.x
+        });
+
+        // add the points
+        var j;
+        for ( j = 0; j < message.points.length; j++) {
+          var pt = new THREE$1.Vector3();
+          pt.x = message.points[j].x;
+          pt.y = message.points[j].y;
+          pt.z = message.points[j].z;
+          lineStripGeom.vertices.push(pt);
+        }
+
+        // determine the colors for each
+        if (message.colors.length === message.points.length) {
+          lineStripMaterial.vertexColors = true;
+          for ( j = 0; j < message.points.length; j++) {
+            var clr = new THREE$1.Color();
+            clr.setRGB(message.colors[j].r, message.colors[j].g, message.colors[j].b);
+            lineStripGeom.colors.push(clr);
+          }
+        } else {
+          lineStripMaterial.color.setRGB(message.color.r, message.color.g, message.color.b);
+        }
+
+        // add the line
+        this.add(new THREE$1.Line(lineStripGeom, lineStripMaterial));
+        break;
+      case MARKER_LINE_LIST:
+        var lineListGeom = new THREE$1.Geometry();
+        var lineListMaterial = new THREE$1.LineBasicMaterial({
+          size : message.scale.x
+        });
+
+        // add the points
+        var k;
+        for ( k = 0; k < message.points.length; k++) {
+          var v = new THREE$1.Vector3();
+          v.x = message.points[k].x;
+          v.y = message.points[k].y;
+          v.z = message.points[k].z;
+          lineListGeom.vertices.push(v);
+        }
+
+        // determine the colors for each
+        if (message.colors.length === message.points.length) {
+          lineListMaterial.vertexColors = true;
+          for ( k = 0; k < message.points.length; k++) {
+            var c = new THREE$1.Color();
+            c.setRGB(message.colors[k].r, message.colors[k].g, message.colors[k].b);
+            lineListGeom.colors.push(c);
+          }
+        } else {
+          lineListMaterial.color.setRGB(message.color.r, message.color.g, message.color.b);
+        }
+
+        // add the line
+        this.add(new THREE$1.Line(lineListGeom, lineListMaterial,THREE$1.LinePieces));
+        break;
+      case MARKER_CUBE_LIST:
+        // holds the main object
+        var object = new THREE$1.Object3D();
+
+        // check if custom colors should be used
+        var numPoints = message.points.length;
+        var createColors = (numPoints === message.colors.length);
+        // do not render giant lists
+        var stepSize = Math.ceil(numPoints / 1250);
+
+        // add the points
+        var p, cube, curColor, newMesh;
+        for (p = 0; p < numPoints; p+=stepSize) {
+          cube = new THREE$1.BoxGeometry(message.scale.x, message.scale.y, message.scale.z);
+
+          // check the color
+          if(createColors) {
+            curColor = makeColorMaterial(message.colors[p].r, message.colors[p].g, message.colors[p].b, message.colors[p].a);
+          } else {
+            curColor = colorMaterial;
+          }
+
+          newMesh = new THREE$1.Mesh(cube, curColor);
+          newMesh.position.x = message.points[p].x;
+          newMesh.position.y = message.points[p].y;
+          newMesh.position.z = message.points[p].z;
+          object.add(newMesh);
+        }
+
+        this.add(object);
+        break;
+      case MARKER_SPHERE_LIST:
+        // holds the main object
+        var sphereObject = new THREE$1.Object3D();
+
+        // check if custom colors should be used
+        var numSpherePoints = message.points.length;
+        var createSphereColors = (numSpherePoints === message.colors.length);
+        // do not render giant lists
+        var sphereStepSize = Math.ceil(numSpherePoints / 1250);
+
+        // add the points
+        var q, sphere, curSphereColor, newSphereMesh;
+        for (q = 0; q < numSpherePoints; q+=sphereStepSize) {
+          sphere = new THREE$1.SphereGeometry(0.5, 8, 8);
+
+          // check the color
+          if(createSphereColors) {
+            curSphereColor = makeColorMaterial(message.colors[q].r, message.colors[q].g, message.colors[q].b, message.colors[q].a);
+          } else {
+            curSphereColor = colorMaterial;
+          }
+
+          newSphereMesh = new THREE$1.Mesh(sphere, curSphereColor);
+          newSphereMesh.scale.x = message.scale.x;
+          newSphereMesh.scale.y = message.scale.y;
+          newSphereMesh.scale.z = message.scale.z;
+          newSphereMesh.position.x = message.points[q].x;
+          newSphereMesh.position.y = message.points[q].y;
+          newSphereMesh.position.z = message.points[q].z;
+          sphereObject.add(newSphereMesh);
+        }
+        this.add(sphereObject);
+        break;
+      case MARKER_POINTS:
+        // for now, use a particle system for the lists
+        var geometry = new THREE$1.Geometry();
+        var material = new THREE$1.ParticleBasicMaterial({
+          size : message.scale.x
+        });
+
+        // add the points
+        var i;
+        for ( i = 0; i < message.points.length; i++) {
+          var vertex = new THREE$1.Vector3();
+          vertex.x = message.points[i].x;
+          vertex.y = message.points[i].y;
+          vertex.z = message.points[i].z;
+          geometry.vertices.push(vertex);
+        }
+
+        // determine the colors for each
+        if (message.colors.length === message.points.length) {
+          material.vertexColors = true;
+          for ( i = 0; i < message.points.length; i++) {
+            var color = new THREE$1.Color();
+            color.setRGB(message.colors[i].r, message.colors[i].g, message.colors[i].b);
+            geometry.colors.push(color);
+          }
+        } else {
+          material.color.setRGB(message.color.r, message.color.g, message.color.b);
+        }
+
+        // add the particle system
+        this.add(new THREE$1.ParticleSystem(geometry, material));
+        break;
+      case MARKER_TEXT_VIEW_FACING:
+        // only work on non-empty text
+        if (message.text.length > 0) {
+          // Use a THREE.Sprite to always be view-facing
+          // ( code from http://stackoverflow.com/a/27348780 )
+          var textColor = this.msgColor;
+
+          var canvas = document.createElement('canvas');
+          var context = canvas.getContext('2d');
+          var textHeight = 100;
+          var fontString = 'normal ' + textHeight + 'px sans-serif';
+          context.font = fontString;
+          var metrics = context.measureText( message.text );
+          var textWidth = metrics.width;
+
+          canvas.width = textWidth;
+          // To account for overhang (like the letter 'g'), make the canvas bigger
+          // The non-text portion is transparent anyway
+          canvas.height = 1.5 * textHeight;
+
+          // this does need to be set again
+          context.font = fontString;
+          context.fillStyle = 'rgba('
+            + Math.round(255 * textColor.r) + ', '
+            + Math.round(255 * textColor.g) + ', '
+            + Math.round(255 * textColor.b) + ', '
+            + textColor.a + ')';
+          context.textAlign = 'left';
+          context.textBaseline = 'middle';
+          context.fillText( message.text, 0, canvas.height/2);
+
+          var texture = new THREE$1.Texture(canvas);
+          texture.needsUpdate = true;
+
+          var spriteMaterial = new THREE$1.SpriteMaterial({
+            map: texture,
+            // NOTE: This is needed for THREE.js r61, unused in r70
+            useScreenCoordinates: false });
+          var sprite = new THREE$1.Sprite( spriteMaterial );
+          var textSize = message.scale.x;
+          sprite.scale.set(textWidth / canvas.height * textSize, textSize, 1);
+
+          this.add(sprite);      }
+        break;
+      case MARKER_MESH_RESOURCE:
+        // load and add the mesh
+        var meshColorMaterial = null;
+        if(message.color.r !== 0 || message.color.g !== 0 ||
+           message.color.b !== 0 || message.color.a !== 0) {
+          meshColorMaterial = colorMaterial;
+        }
+        this.msgMesh = message.mesh_resource.substr(10);
+        var meshResource = new MeshResource({
+          path : path,
+          resource :  this.msgMesh,
+          material : meshColorMaterial,
+        });
+        this.add(meshResource);
+        break;
+      case MARKER_TRIANGLE_LIST:
+        // create the list of triangles
+        var tri = new TriangleList({
+          material : colorMaterial,
+          vertices : message.points,
+          colors : message.colors
+        });
+        tri.scale.set(message.scale.x, message.scale.y, message.scale.z);
+        this.add(tri);
+        break;
+      default:
+        console.error('Currently unsupported marker type: ' + message.type);
+        break;
+    }
+  };
+
+  /**
+   * Set the pose of this marker to the given values.
+   *
+   * @param pose - the pose to set for this marker
+   */
+  setPose(pose) {
+    // set position information
+    this.position.x = pose.position.x;
+    this.position.y = pose.position.y;
+    this.position.z = pose.position.z;
+
+    // set the rotation
+    this.quaternion.set(pose.orientation.x, pose.orientation.y,
+        pose.orientation.z, pose.orientation.w);
+    this.quaternion.normalize();
+
+    // update the world
+    this.updateMatrixWorld();
+  };
+
+  /**
+   * Update this marker.
+   *
+   * @param message - the marker message
+   * @return true on success otherwhise false is returned
+   */
+  update(message) {
+    // set the pose and get the color
+    this.setPose(message.pose);
+
+    // Update color
+    if(message.color.r !== this.msgColor.r ||
+       message.color.g !== this.msgColor.g ||
+       message.color.b !== this.msgColor.b ||
+       message.color.a !== this.msgColor.a)
+    {
+        var colorMaterial = makeColorMaterial(
+            message.color.r, message.color.g,
+            message.color.b, message.color.a);
+
+        switch (message.type) {
+        case MARKER_LINE_STRIP:
+        case MARKER_LINE_LIST:
+        case MARKER_POINTS:
+            break;
+        case MARKER_ARROW:
+        case MARKER_CUBE:
+        case MARKER_SPHERE:
+        case MARKER_CYLINDER:
+        case MARKER_TRIANGLE_LIST:
+        case MARKER_TEXT_VIEW_FACING:
+            this.traverse (function (child){
+                if (child instanceof THREE$1.Mesh) {
+                    child.material = colorMaterial;
+                }
+            });
+            break;
+        case MARKER_MESH_RESOURCE:
+            var meshColorMaterial = null;
+            if(message.color.r !== 0 || message.color.g !== 0 ||
+               message.color.b !== 0 || message.color.a !== 0) {
+                meshColorMaterial = this.colorMaterial;
+            }
+            this.traverse (function (child){
+                if (child instanceof THREE$1.Mesh) {
+                    child.material = meshColorMaterial;
+                }
+            });
+            break;
+        case MARKER_CUBE_LIST:
+        case MARKER_SPHERE_LIST:
+            // TODO Support to update color for MARKER_CUBE_LIST & MARKER_SPHERE_LIST
+            return false;
+        default:
+            return false;
+        }
+
+        this.msgColor = message.color;
+    }
+
+    // Update geometry
+    var scaleChanged =
+          Math.abs(this.msgScale[0] - message.scale.x) > 1.0e-6 ||
+          Math.abs(this.msgScale[1] - message.scale.y) > 1.0e-6 ||
+          Math.abs(this.msgScale[2] - message.scale.z) > 1.0e-6;
+    this.msgScale = [message.scale.x, message.scale.y, message.scale.z];
+
+    switch (message.type) {
+      case MARKER_CUBE:
+      case MARKER_SPHERE:
+      case MARKER_CYLINDER:
+          if(scaleChanged) {
+              return false;
+          }
+          break;
+      case MARKER_TEXT_VIEW_FACING:
+          if(scaleChanged || this.text !== message.text) {
+              return false;
+          }
+          break;
+      case MARKER_MESH_RESOURCE:
+          var meshResource = message.mesh_resource.substr(10);
+          if(meshResource !== this.msgMesh) {
+              return false;
+          }
+          if(scaleChanged) {
+              return false;
+          }
+          break;
+      case MARKER_ARROW:
+      case MARKER_LINE_STRIP:
+      case MARKER_LINE_LIST:
+      case MARKER_CUBE_LIST:
+      case MARKER_SPHERE_LIST:
+      case MARKER_POINTS:
+      case MARKER_TRIANGLE_LIST:
+          // TODO: Check if geometry changed
+          return false;
+      default:
+          break;
+    }
+
+    return true;
+  };
+
+  /*
+   * Free memory of elements in this marker.
+   */
+  dispose() {
+    this.children.forEach(function(element) {
+      if (element instanceof MeshResource) {
+        element.children.forEach(function(scene) {
+          if (scene.material !== undefined) {
+            scene.material.dispose();
+          }
+          scene.children.forEach(function(mesh) {
+            if (mesh.geometry !== undefined) {
+              mesh.geometry.dispose();
+            }
+            if (mesh.material !== undefined) {
+              mesh.material.dispose();
+            }
+            scene.remove(mesh);
+          });
+          element.remove(scene);
+        });
+      } else {
+        if (element.geometry !== undefined) {
+            element.geometry.dispose();
+        }
+        if (element.material !== undefined) {
+            element.material.dispose();
+        }
+      }
+      element.parent.remove(element);
+    });
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class InteractiveMarkerControl extends THREE$1.Object3D {
+
+  /**
+   * The main marker control object for an interactive marker.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * parent - the parent of this control
+   *  * message - the interactive marker control message
+   *  * camera - the main camera associated with the viewer for this marker client
+   *  * path (optional) - the base path to any meshes that will be loaded
+   *  * loader (optional) - the Collada loader to use (e.g., an instance of ROS3D.COLLADA_LOADER)
+   */
+  constructor(options) {
+    super();
+    var that = this;
+
+    options = options || {};
+    this.parent = options.parent;
+    var handle = options.handle;
+    var message = options.message;
+    this.message = message;
+    this.name = message.name;
+    this.camera = options.camera;
+    this.path = options.path || '/';
+    this.loader = options.loader;
+    this.dragging = false;
+    this.startMousePos = new THREE$1.Vector2();
+
+    // orientation for the control
+    var controlOri = new THREE$1.Quaternion(message.orientation.x, message.orientation.y,
+        message.orientation.z, message.orientation.w);
+    controlOri.normalize();
+
+    // transform x axis into local frame
+    var controlAxis = new THREE$1.Vector3(1, 0, 0);
+    controlAxis.applyQuaternion(controlOri);
+
+    this.currentControlOri = new THREE$1.Quaternion();
+
+    // determine mouse interaction
+    switch (message.interaction_mode) {
+      case INTERACTIVE_MARKER_MOVE_AXIS:
+        this.addEventListener('mousemove', this.parent.moveAxis.bind(this.parent, this, controlAxis));
+        this.addEventListener('touchmove', this.parent.moveAxis.bind(this.parent, this, controlAxis));
+        break;
+      case INTERACTIVE_MARKER_ROTATE_AXIS:
+        this
+            .addEventListener('mousemove', this.parent.rotateAxis.bind(this.parent, this, controlOri));
+        break;
+      case INTERACTIVE_MARKER_MOVE_PLANE:
+        this
+            .addEventListener('mousemove', this.parent.movePlane.bind(this.parent, this, controlAxis));
+        break;
+      case INTERACTIVE_MARKER_BUTTON:
+        this.addEventListener('click', this.parent.buttonClick.bind(this.parent, this));
+        break;
+      default:
+        break;
+    }
+
+    /**
+     * Install default listeners for highlighting / dragging.
+     *
+     * @param event - the event to stop
+     */
+    function stopPropagation(event) {
+      event.stopPropagation();
+    }
+
+    // check the mode
+    if (message.interaction_mode !== INTERACTIVE_MARKER_NONE) {
+      this.addEventListener('mousedown', this.parent.startDrag.bind(this.parent, this));
+      this.addEventListener('mouseup', this.parent.stopDrag.bind(this.parent, this));
+      this.addEventListener('contextmenu', this.parent.showMenu.bind(this.parent, this));
+      this.addEventListener('mouseup', function(event3d) {
+        if (that.startMousePos.distanceToSquared(event3d.mousePos) === 0) {
+          event3d.type = 'contextmenu';
+          that.dispatchEvent(event3d);
+        }
+      });
+      this.addEventListener('mouseover', stopPropagation);
+      this.addEventListener('mouseout', stopPropagation);
+      this.addEventListener('click', stopPropagation);
+      this.addEventListener('mousedown', function(event3d) {
+        that.startMousePos = event3d.mousePos;
+      });
+
+      // touch support
+      this.addEventListener('touchstart', function(event3d) {
+        if (event3d.domEvent.touches.length === 1) {
+          event3d.type = 'mousedown';
+          event3d.domEvent.button = 0;
+          that.dispatchEvent(event3d);
+        }
+      });
+      this.addEventListener('touchmove', function(event3d) {
+        if (event3d.domEvent.touches.length === 1) {
+          event3d.type = 'mousemove';
+          event3d.domEvent.button = 0;
+          that.dispatchEvent(event3d);
+        }
+      });
+      this.addEventListener('touchend', function(event3d) {
+        if (event3d.domEvent.touches.length === 0) {
+          event3d.domEvent.button = 0;
+          event3d.type = 'mouseup';
+          that.dispatchEvent(event3d);
+          event3d.type = 'click';
+          that.dispatchEvent(event3d);
+        }
+      });
+    }
+
+    // rotation behavior
+    var rotInv = new THREE$1.Quaternion();
+    var posInv = this.parent.position.clone().multiplyScalar(-1);
+    switch (message.orientation_mode) {
+      case INTERACTIVE_MARKER_INHERIT:
+        rotInv = this.parent.quaternion.clone().inverse();
+        break;
+      case INTERACTIVE_MARKER_FIXED:
+        break;
+      case INTERACTIVE_MARKER_VIEW_FACING:
+        break;
+      default:
+        console.error('Unkown orientation mode: ' + message.orientation_mode);
+        break;
+    }
+
+    // temporary TFClient to get transformations from InteractiveMarker
+    // frame to potential child Marker frames
+    var localTfClient = new ROSLIB.TFClient({
+      ros : handle.tfClient.ros,
+      fixedFrame : handle.message.header.frame_id,
+      serverName : handle.tfClient.serverName
+    });
+
+    // create visuals (markers)
+    message.markers.forEach(function(markerMsg) {
+      var addMarker = function(transformMsg) {
+        var markerHelper = new Marker({
+          message : markerMsg,
+          path : that.path,
+          loader : that.loader
+        });
+
+        // if transformMsg isn't null, this was called by TFClient
+        if (transformMsg !== null) {
+          // get the current pose as a ROSLIB.Pose...
+          var newPose = new ROSLIB.Pose({
+            position : markerHelper.position,
+            orientation : markerHelper.quaternion
+          });
+          // so we can apply the transform provided by the TFClient
+          newPose.applyTransform(new ROSLIB.Transform(transformMsg));
+
+          // get transform between parent marker's location and its frame
+          // apply it to sub-marker position to get sub-marker position
+          // relative to parent marker
+          var transformMarker = new Marker({
+            message : markerMsg,
+            path : that.path,
+            loader : that.loader
+          });
+          transformMarker.position.add(posInv);
+          transformMarker.position.applyQuaternion(rotInv);
+          transformMarker.quaternion.multiplyQuaternions(rotInv, transformMarker.quaternion);
+          var translation = new THREE$1.Vector3(transformMarker.position.x, transformMarker.position.y, transformMarker.position.z);
+          var transform = new ROSLIB.Transform({
+            translation : translation,
+            orientation : transformMarker.quaternion
+          });
+
+          // apply that transform too
+          newPose.applyTransform(transform);
+
+          markerHelper.setPose(newPose);
+
+          markerHelper.updateMatrixWorld();
+          // we only need to set the pose once - at least, this is what RViz seems to be doing, might change in the future
+          localTfClient.unsubscribe(markerMsg.header.frame_id);
+        }
+
+        // add the marker
+        that.add(markerHelper);
+      };
+
+      // If the marker is not relative to the parent marker's position,
+      // ask the *local* TFClient for the transformation from the
+      // InteractiveMarker frame to the sub-Marker frame
+      if (markerMsg.header.frame_id !== '') {
+        localTfClient.subscribe(markerMsg.header.frame_id, addMarker);
+      }
+      // If not, just add the marker without changing its pose
+      else {
+        addMarker(null);
+      }
+    });
+  };
+
+  updateMatrixWorld (force) {
+    var that = this;
+    var message = this.message;
+    switch (message.orientation_mode) {
+      case INTERACTIVE_MARKER_INHERIT:
+        super.updateMatrixWorld(force);
+        that.currentControlOri.copy(that.quaternion);
+        that.currentControlOri.normalize();
+        break;
+      case INTERACTIVE_MARKER_FIXED:
+        that.quaternion.copy(that.parent.quaternion.clone().inverse());
+        that.updateMatrix();
+        that.matrixWorldNeedsUpdate = true;
+        super.updateMatrixWorld(force);
+        that.currentControlOri.copy(that.quaternion);
+        break;
+      case INTERACTIVE_MARKER_VIEW_FACING:
+        that.camera.updateMatrixWorld();
+        var cameraRot = new THREE$1.Matrix4().extractRotation(that.camera.matrixWorld);
+
+        var ros2Gl = new THREE$1.Matrix4();
+        var r90 = Math.PI * 0.5;
+        var rv = new THREE$1.Euler(-r90, 0, r90);
+        ros2Gl.makeRotationFromEuler(rv);
+
+        var worldToLocal = new THREE$1.Matrix4();
+        worldToLocal.getInverse(that.parent.matrixWorld);
+
+        cameraRot.multiplyMatrices(cameraRot, ros2Gl);
+        cameraRot.multiplyMatrices(worldToLocal, cameraRot);
+
+        that.currentControlOri.setFromRotationMatrix(cameraRot);
+
+        // check the orientation
+        if (!message.independent_marker_orientation) {
+          that.quaternion.copy(that.currentControlOri);
+          that.updateMatrix();
+          that.matrixWorldNeedsUpdate = true;
+        }
+        super.updateMatrixWorld(force);
+        break;
+      default:
+        console.error('Unkown orientation mode: ' + message.orientation_mode);
+        break;
+    }
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class InteractiveMarkerMenu extends THREE$1.EventDispatcher {
+
+  /**
+   * A menu for an interactive marker. This will be overlayed on the canvas.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * menuEntries - the menu entries to add
+   *  * className (optional) - a custom CSS class for the menu div
+   *  * entryClassName (optional) - a custom CSS class for the menu entry
+   *  * overlayClassName (optional) - a custom CSS class for the menu overlay
+   *  * menuFontSize (optional) - the menu font size
+   */
+  constructor(options) {
+    super();
+    var that = this;
+    options = options || {};
+    var menuEntries = options.menuEntries;
+    var className = options.className || 'default-interactive-marker-menu';
+    var entryClassName = options.entryClassName || 'default-interactive-marker-menu-entry';
+    var overlayClassName = options.overlayClassName || 'default-interactive-marker-overlay';
+    var menuFontSize = options.menuFontSize || '0.8em';
+
+    // holds the menu tree
+    var allMenus = [];
+    allMenus[0] = {
+      children : []
+    };
+
+
+    // create the CSS for this marker if it has not been created
+    if (document.getElementById('default-interactive-marker-menu-css') === null) {
+      var style = document.createElement('style');
+      style.id = 'default-interactive-marker-menu-css';
+      style.type = 'text/css';
+      style.innerHTML = '.default-interactive-marker-menu {' + 'background-color: #444444;'
+          + 'border: 1px solid #888888;' + 'border: 1px solid #888888;' + 'padding: 0px 0px 0px 0px;'
+          + 'color: #FFFFFF;' + 'font-family: sans-serif;' + 'font-size: ' + menuFontSize +';' + 'z-index: 1002;'
+          + '}' + '.default-interactive-marker-menu ul {' + 'padding: 0px 0px 5px 0px;'
+          + 'margin: 0px;' + 'list-style-type: none;' + '}'
+          + '.default-interactive-marker-menu ul li div {' + '-webkit-touch-callout: none;'
+          + '-webkit-user-select: none;' + '-khtml-user-select: none;' + '-moz-user-select: none;'
+          + '-ms-user-select: none;' + 'user-select: none;' + 'cursor: default;'
+          + 'padding: 3px 10px 3px 10px;' + '}' + '.default-interactive-marker-menu-entry:hover {'
+          + '  background-color: #666666;' + '  cursor: pointer;' + '}'
+          + '.default-interactive-marker-menu ul ul {' + '  font-style: italic;'
+          + '  padding-left: 10px;' + '}' + '.default-interactive-marker-overlay {'
+          + '  position: absolute;' + '  top: 0%;' + '  left: 0%;' + '  width: 100%;'
+          + '  height: 100%;' + '  background-color: black;' + '  z-index: 1001;'
+          + '  -moz-opacity: 0.0;' + '  opacity: .0;' + '  filter: alpha(opacity = 0);' + '}';
+      document.getElementsByTagName('head')[0].appendChild(style);
+    }
+
+    // place the menu in a div
+    this.menuDomElem = document.createElement('div');
+    this.menuDomElem.style.position = 'absolute';
+    this.menuDomElem.className = className;
+    this.menuDomElem.addEventListener('contextmenu', function(event) {
+      event.preventDefault();
+    });
+
+    // create the overlay DOM
+    this.overlayDomElem = document.createElement('div');
+    this.overlayDomElem.className = overlayClassName;
+
+    this.hideListener = this.hide.bind(this);
+    this.overlayDomElem.addEventListener('contextmenu', this.hideListener);
+    this.overlayDomElem.addEventListener('click', this.hideListener);
+    this.overlayDomElem.addEventListener('touchstart', this.hideListener);
+
+    // parse all entries and link children to parents
+    var i, entry, id;
+    for ( i = 0; i < menuEntries.length; i++) {
+      entry = menuEntries[i];
+      id = entry.id;
+      allMenus[id] = {
+        title : entry.title,
+        id : id,
+        children : []
+      };
+    }
+    for ( i = 0; i < menuEntries.length; i++) {
+      entry = menuEntries[i];
+      id = entry.id;
+      var menu = allMenus[id];
+      var parent = allMenus[entry.parent_id];
+      parent.children.push(menu);
+    }
+
+    function emitMenuSelect(menuEntry, domEvent) {
+      this.dispatchEvent({
+        type : 'menu-select',
+        domEvent : domEvent,
+        id : menuEntry.id,
+        controlName : this.controlName
+      });
+      this.hide(domEvent);
+    }
+
+    /**
+     * Create the HTML UL element for the menu and link it to the parent.
+     *
+     * @param parentDomElem - the parent DOM element
+     * @param parentMenu - the parent menu
+     */
+    function makeUl(parentDomElem, parentMenu) {
+
+      var ulElem = document.createElement('ul');
+      parentDomElem.appendChild(ulElem);
+
+      var children = parentMenu.children;
+
+      for ( var i = 0; i < children.length; i++) {
+        var liElem = document.createElement('li');
+        var divElem = document.createElement('div');
+        divElem.appendChild(document.createTextNode(children[i].title));
+        ulElem.appendChild(liElem);
+        liElem.appendChild(divElem);
+
+        if (children[i].children.length > 0) {
+          makeUl(liElem, children[i]);
+          divElem.addEventListener('click', that.hide.bind(that));
+          divElem.addEventListener('touchstart', that.hide.bind(that));
+        } else {
+          divElem.addEventListener('click', emitMenuSelect.bind(that, children[i]));
+          divElem.addEventListener('touchstart', emitMenuSelect.bind(that, children[i]));
+          divElem.className = 'default-interactive-marker-menu-entry';
+        }
+      }
+
+    }
+
+    // construct DOM element
+    makeUl(this.menuDomElem, allMenus[0]);
+  };
+
+  /**
+   * Shoe the menu DOM element.
+   *
+   * @param control - the control for the menu
+   * @param event - the event that caused this
+   */
+  show(control, event) {
+    if (event && event.preventDefault) {
+      event.preventDefault();
+    }
+
+    this.controlName = control.name;
+
+    // position it on the click
+    if (event.domEvent.changedTouches !== undefined) {
+      // touch click
+      this.menuDomElem.style.left = event.domEvent.changedTouches[0].pageX + 'px';
+      this.menuDomElem.style.top = event.domEvent.changedTouches[0].pageY + 'px';
+    } else {
+      // mouse click
+      this.menuDomElem.style.left = event.domEvent.clientX + 'px';
+      this.menuDomElem.style.top = event.domEvent.clientY + 'px';
+    }
+    document.body.appendChild(this.overlayDomElem);
+    document.body.appendChild(this.menuDomElem);
+  };
+
+  /**
+   * Hide the menu DOM element.
+   *
+   * @param event (optional) - the event that caused this
+   */
+  hide(event) {
+    if (event && event.preventDefault) {
+      event.preventDefault();
+    }
+
+    document.body.removeChild(this.overlayDomElem);
+    document.body.removeChild(this.menuDomElem);
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class InteractiveMarker extends THREE$1.Object3D {
+
+  /**
+   * The main interactive marker object.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * handle - the ROS3D.InteractiveMarkerHandle for this marker
+   *  * camera - the main camera associated with the viewer for this marker
+   *  * path (optional) - the base path to any meshes that will be loaded
+   *  * loader (optional) - the Collada loader to use (e.g., an instance of ROS3D.COLLADA_LOADER)
+   */
+  constructor(options) {
+    super();
+
+    var that = this;
+    options = options || {};
+    var handle = options.handle;
+    this.name = handle.name;
+    var camera = options.camera;
+    var path = options.path || '/';
+    var loader = options.loader;
+    this.dragging = false;
+
+    // set the initial pose
+    this.onServerSetPose({
+      pose : handle.pose
+    });
+
+    // information on where the drag started
+    this.dragStart = {
+      position : new THREE$1.Vector3(),
+      orientation : new THREE$1.Quaternion(),
+      positionWorld : new THREE$1.Vector3(),
+      orientationWorld : new THREE$1.Quaternion(),
+      event3d : {}
+    };
+
+    // add each control message
+    handle.controls.forEach(function(controlMessage) {
+      that.add(new InteractiveMarkerControl({
+        parent : that,
+        handle : handle,
+        message : controlMessage,
+        camera : camera,
+        path : path,
+        loader : loader
+      }));
+    });
+
+    // check for any menus
+    if (handle.menuEntries.length > 0) {
+      this.menu = new InteractiveMarkerMenu({
+        menuEntries : handle.menuEntries,
+        menuFontSize : handle.menuFontSize
+      });
+
+      // forward menu select events
+      this.menu.addEventListener('menu-select', function(event) {
+        that.dispatchEvent(event);
+      });
+    }
+  };
+
+  /**
+   * Show the interactive marker menu associated with this marker.
+   *
+   * @param control - the control to use
+   * @param event - the event that caused this
+   */
+  showMenu(control, event) {
+    if (this.menu) {
+      this.menu.show(control, event);
+    }
+  };
+
+  /**
+   * Move the axis based on the given event information.
+   *
+   * @param control - the control to use
+   * @param origAxis - the origin of the axis
+   * @param event3d - the event that caused this
+   */
+  moveAxis(control, origAxis, event3d) {
+    if (this.dragging) {
+      var currentControlOri = control.currentControlOri;
+      var axis = origAxis.clone().applyQuaternion(currentControlOri);
+      // get move axis in world coords
+      var originWorld = this.dragStart.event3d.intersection.point;
+      var axisWorld = axis.clone().applyQuaternion(this.dragStart.orientationWorld.clone());
+
+      var axisRay = new THREE$1.Ray(originWorld, axisWorld);
+
+      // find closest point to mouse on axis
+      var t = closestAxisPoint(axisRay, event3d.camera, event3d.mousePos);
+
+      // offset from drag start position
+      var p = new THREE$1.Vector3();
+      p.addVectors(this.dragStart.position, axis.clone().applyQuaternion(this.dragStart.orientation)
+          .multiplyScalar(t));
+      this.setPosition(control, p);
+
+
+      event3d.stopPropagation();
+    }
+  };
+
+  /**
+   * Move with respect to the plane based on the contorl and event.
+   *
+   * @param control - the control to use
+   * @param origNormal - the normal of the origin
+   * @param event3d - the event that caused this
+   */
+  movePlane(control, origNormal, event3d) {
+    if (this.dragging) {
+      var currentControlOri = control.currentControlOri;
+      var normal = origNormal.clone().applyQuaternion(currentControlOri);
+      // get plane params in world coords
+      var originWorld = this.dragStart.event3d.intersection.point;
+      var normalWorld = normal.clone().applyQuaternion(this.dragStart.orientationWorld);
+
+      // intersect mouse ray with plane
+      var intersection = intersectPlane(event3d.mouseRay, originWorld, normalWorld);
+
+      // offset from drag start position
+      var p = new THREE$1.Vector3();
+      p.subVectors(intersection, originWorld);
+      p.add(this.dragStart.positionWorld);
+      this.setPosition(control, p);
+      event3d.stopPropagation();
+    }
+  };
+
+  /**
+   * Rotate based on the control and event given.
+   *
+   * @param control - the control to use
+   * @param origOrientation - the orientation of the origin
+   * @param event3d - the event that caused this
+   */
+  rotateAxis(control, origOrientation, event3d) {
+    if (this.dragging) {
+      control.updateMatrixWorld();
+
+      var currentControlOri = control.currentControlOri;
+      var orientation = currentControlOri.clone().multiply(origOrientation.clone());
+
+      var normal = (new THREE$1.Vector3(1, 0, 0)).applyQuaternion(orientation);
+
+      // get plane params in world coords
+      var originWorld = this.dragStart.event3d.intersection.point;
+      var normalWorld = normal.applyQuaternion(this.dragStart.orientationWorld);
+
+      // intersect mouse ray with plane
+      var intersection = intersectPlane(event3d.mouseRay, originWorld, normalWorld);
+
+      // offset local origin to lie on intersection plane
+      var normalRay = new THREE$1.Ray(this.dragStart.positionWorld, normalWorld);
+      var rotOrigin = intersectPlane(normalRay, originWorld, normalWorld);
+
+      // rotates from world to plane coords
+      var orientationWorld = this.dragStart.orientationWorld.clone().multiply(orientation);
+      var orientationWorldInv = orientationWorld.clone().inverse();
+
+      // rotate original and current intersection into local coords
+      intersection.sub(rotOrigin);
+      intersection.applyQuaternion(orientationWorldInv);
+
+      var origIntersection = this.dragStart.event3d.intersection.point.clone();
+      origIntersection.sub(rotOrigin);
+      origIntersection.applyQuaternion(orientationWorldInv);
+
+      // compute relative 2d angle
+      var a1 = Math.atan2(intersection.y, intersection.z);
+      var a2 = Math.atan2(origIntersection.y, origIntersection.z);
+      var a = a2 - a1;
+
+      var rot = new THREE$1.Quaternion();
+      rot.setFromAxisAngle(normal, a);
+
+      // rotate
+      this.setOrientation(control, rot.multiply(this.dragStart.orientationWorld));
+
+      // offset from drag start position
+      event3d.stopPropagation();
+    }
+  };
+
+  /**
+   * Dispatch the given event type.
+   *
+   * @param type - the type of event
+   * @param control - the control to use
+   */
+  feedbackEvent(type, control) {
+    this.dispatchEvent({
+      type : type,
+      position : this.position.clone(),
+      orientation : this.quaternion.clone(),
+      controlName : control.name
+    });
+  };
+
+  /**
+   * Start a drag action.
+   *
+   * @param control - the control to use
+   * @param event3d - the event that caused this
+   */
+  startDrag(control, event3d) {
+    if (event3d.domEvent.button === 0) {
+      event3d.stopPropagation();
+      this.dragging = true;
+      this.updateMatrixWorld(true);
+      var scale = new THREE$1.Vector3();
+      this.matrixWorld
+          .decompose(this.dragStart.positionWorld, this.dragStart.orientationWorld, scale);
+      this.dragStart.position = this.position.clone();
+      this.dragStart.orientation = this.quaternion.clone();
+      this.dragStart.event3d = event3d;
+
+      this.feedbackEvent('user-mousedown', control);
+    }
+  };
+
+  /**
+   * Stop a drag action.
+   *
+   * @param control - the control to use
+   * @param event3d - the event that caused this
+   */
+  stopDrag(control, event3d) {
+    if (event3d.domEvent.button === 0) {
+      event3d.stopPropagation();
+      this.dragging = false;
+      this.dragStart.event3d = {};
+      this.onServerSetPose(this.bufferedPoseEvent);
+      this.bufferedPoseEvent = undefined;
+
+      this.feedbackEvent('user-mouseup', control);
+    }
+  };
+
+  /**
+   * Handle a button click.
+   *
+   * @param control - the control to use
+   * @param event3d - the event that caused this
+   */
+  buttonClick(control, event3d) {
+    event3d.stopPropagation();
+    this.feedbackEvent('user-button-click', control);
+  };
+
+  /**
+   * Handle a user pose change for the position.
+   *
+   * @param control - the control to use
+   * @param event3d - the event that caused this
+   */
+  setPosition(control, position) {
+    this.position.copy(position);
+    this.feedbackEvent('user-pose-change', control);
+  };
+
+  /**
+   * Handle a user pose change for the orientation.
+   *
+   * @param control - the control to use
+   * @param event3d - the event that caused this
+   */
+  setOrientation(control, orientation) {
+    orientation.normalize();
+    this.quaternion.copy(orientation);
+    this.feedbackEvent('user-pose-change', control);
+  };
+
+  /**
+   * Update the marker based when the pose is set from the server.
+   *
+   * @param event - the event that caused this
+   */
+  onServerSetPose(event) {
+    if (event !== undefined) {
+      // don't update while dragging
+      if (this.dragging) {
+        this.bufferedPoseEvent = event;
+      } else {
+        var pose = event.pose;
+        this.position.copy(pose.position);
+        this.quaternion.copy(pose.orientation);
+        this.updateMatrixWorld(true);
+      }
+    }
+  };
+
+  /**
+   * Free memory of elements in this marker.
+   */
+  dispose() {
+    var that = this;
+    this.children.forEach(function(intMarkerControl) {
+      intMarkerControl.children.forEach(function(marker) {
+        marker.dispose();
+        intMarkerControl.remove(marker);
+      });
+      that.remove(intMarkerControl);
+    });
+  };
+}
+
+function createCommonjsModule(fn, module) {
+	return module = { exports: {} }, fn(module, module.exports), module.exports;
+}
+
+var eventemitter2 = createCommonjsModule(function (module, exports) {
+!function(undefined) {
+
+  var isArray = Array.isArray ? Array.isArray : function _isArray(obj) {
+    return Object.prototype.toString.call(obj) === "[object Array]";
+  };
+  var defaultMaxListeners = 10;
+
+  function init() {
+    this._events = {};
+    if (this._conf) {
+      configure.call(this, this._conf);
+    }
+  }
+
+  function configure(conf) {
+    if (conf) {
+      this._conf = conf;
+
+      conf.delimiter && (this.delimiter = conf.delimiter);
+      this._events.maxListeners = conf.maxListeners !== undefined ? conf.maxListeners : defaultMaxListeners;
+      conf.wildcard && (this.wildcard = conf.wildcard);
+      conf.newListener && (this.newListener = conf.newListener);
+      conf.verboseMemoryLeak && (this.verboseMemoryLeak = conf.verboseMemoryLeak);
+
+      if (this.wildcard) {
+        this.listenerTree = {};
+      }
+    } else {
+      this._events.maxListeners = defaultMaxListeners;
+    }
+  }
+
+  function logPossibleMemoryLeak(count, eventName) {
+    var errorMsg = '(node) warning: possible EventEmitter memory ' +
+        'leak detected. %d listeners added. ' +
+        'Use emitter.setMaxListeners() to increase limit.';
+
+    if(this.verboseMemoryLeak){
+      errorMsg += ' Event name: %s.';
+      console.error(errorMsg, count, eventName);
+    } else {
+      console.error(errorMsg, count);
+    }
+
+    if (console.trace){
+      console.trace();
+    }
+  }
+
+  function EventEmitter(conf) {
+    this._events = {};
+    this.newListener = false;
+    this.verboseMemoryLeak = false;
+    configure.call(this, conf);
+  }
+  EventEmitter.EventEmitter2 = EventEmitter; // backwards compatibility for exporting EventEmitter property
+
+  //
+  // Attention, function return type now is array, always !
+  // It has zero elements if no any matches found and one or more
+  // elements (leafs) if there are matches
+  //
+  function searchListenerTree(handlers, type, tree, i) {
+    if (!tree) {
+      return [];
+    }
+    var listeners=[], leaf, len, branch, xTree, xxTree, isolatedBranch, endReached,
+        typeLength = type.length, currentType = type[i], nextType = type[i+1];
+    if (i === typeLength && tree._listeners) {
+      //
+      // If at the end of the event(s) list and the tree has listeners
+      // invoke those listeners.
+      //
+      if (typeof tree._listeners === 'function') {
+        handlers && handlers.push(tree._listeners);
+        return [tree];
+      } else {
+        for (leaf = 0, len = tree._listeners.length; leaf < len; leaf++) {
+          handlers && handlers.push(tree._listeners[leaf]);
+        }
+        return [tree];
+      }
+    }
+
+    if ((currentType === '*' || currentType === '**') || tree[currentType]) {
+      //
+      // If the event emitted is '*' at this part
+      // or there is a concrete match at this patch
+      //
+      if (currentType === '*') {
+        for (branch in tree) {
+          if (branch !== '_listeners' && tree.hasOwnProperty(branch)) {
+            listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i+1));
+          }
+        }
+        return listeners;
+      } else if(currentType === '**') {
+        endReached = (i+1 === typeLength || (i+2 === typeLength && nextType === '*'));
+        if(endReached && tree._listeners) {
+          // The next element has a _listeners, add it to the handlers.
+          listeners = listeners.concat(searchListenerTree(handlers, type, tree, typeLength));
+        }
+
+        for (branch in tree) {
+          if (branch !== '_listeners' && tree.hasOwnProperty(branch)) {
+            if(branch === '*' || branch === '**') {
+              if(tree[branch]._listeners && !endReached) {
+                listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], typeLength));
+              }
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i));
+            } else if(branch === nextType) {
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i+2));
+            } else {
+              // No match on this one, shift into the tree but not in the type array.
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i));
+            }
+          }
+        }
+        return listeners;
+      }
+
+      listeners = listeners.concat(searchListenerTree(handlers, type, tree[currentType], i+1));
+    }
+
+    xTree = tree['*'];
+    if (xTree) {
+      //
+      // If the listener tree will allow any match for this part,
+      // then recursively explore all branches of the tree
+      //
+      searchListenerTree(handlers, type, xTree, i+1);
+    }
+
+    xxTree = tree['**'];
+    if(xxTree) {
+      if(i < typeLength) {
+        if(xxTree._listeners) {
+          // If we have a listener on a '**', it will catch all, so add its handler.
+          searchListenerTree(handlers, type, xxTree, typeLength);
+        }
+
+        // Build arrays of matching next branches and others.
+        for(branch in xxTree) {
+          if(branch !== '_listeners' && xxTree.hasOwnProperty(branch)) {
+            if(branch === nextType) {
+              // We know the next element will match, so jump twice.
+              searchListenerTree(handlers, type, xxTree[branch], i+2);
+            } else if(branch === currentType) {
+              // Current node matches, move into the tree.
+              searchListenerTree(handlers, type, xxTree[branch], i+1);
+            } else {
+              isolatedBranch = {};
+              isolatedBranch[branch] = xxTree[branch];
+              searchListenerTree(handlers, type, { '**': isolatedBranch }, i+1);
+            }
+          }
+        }
+      } else if(xxTree._listeners) {
+        // We have reached the end and still on a '**'
+        searchListenerTree(handlers, type, xxTree, typeLength);
+      } else if(xxTree['*'] && xxTree['*']._listeners) {
+        searchListenerTree(handlers, type, xxTree['*'], typeLength);
+      }
+    }
+
+    return listeners;
+  }
+
+  function growListenerTree(type, listener) {
+
+    type = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+
+    //
+    // Looks for two consecutive '**', if so, don't add the event at all.
+    //
+    for(var i = 0, len = type.length; i+1 < len; i++) {
+      if(type[i] === '**' && type[i+1] === '**') {
+        return;
+      }
+    }
+
+    var tree = this.listenerTree;
+    var name = type.shift();
+
+    while (name !== undefined) {
+
+      if (!tree[name]) {
+        tree[name] = {};
+      }
+
+      tree = tree[name];
+
+      if (type.length === 0) {
+
+        if (!tree._listeners) {
+          tree._listeners = listener;
+        }
+        else {
+          if (typeof tree._listeners === 'function') {
+            tree._listeners = [tree._listeners];
+          }
+
+          tree._listeners.push(listener);
+
+          if (
+            !tree._listeners.warned &&
+            this._events.maxListeners > 0 &&
+            tree._listeners.length > this._events.maxListeners
+          ) {
+            tree._listeners.warned = true;
+            logPossibleMemoryLeak.call(this, tree._listeners.length, name);
+          }
+        }
+        return true;
+      }
+      name = type.shift();
+    }
+    return true;
+  }
+
+  // By default EventEmitters will print a warning if more than
+  // 10 listeners are added to it. This is a useful default which
+  // helps finding memory leaks.
+  //
+  // Obviously not all Emitters should be limited to 10. This function allows
+  // that to be increased. Set to zero for unlimited.
+
+  EventEmitter.prototype.delimiter = '.';
+
+  EventEmitter.prototype.setMaxListeners = function(n) {
+    if (n !== undefined) {
+      this._events || init.call(this);
+      this._events.maxListeners = n;
+      if (!this._conf) this._conf = {};
+      this._conf.maxListeners = n;
+    }
+  };
+
+  EventEmitter.prototype.event = '';
+
+  EventEmitter.prototype.once = function(event, fn) {
+    this.many(event, 1, fn);
+    return this;
+  };
+
+  EventEmitter.prototype.many = function(event, ttl, fn) {
+    var self = this;
+
+    if (typeof fn !== 'function') {
+      throw new Error('many only accepts instances of Function');
+    }
+
+    function listener() {
+      if (--ttl === 0) {
+        self.off(event, listener);
+      }
+      fn.apply(this, arguments);
+    }
+
+    listener._origin = fn;
+
+    this.on(event, listener);
+
+    return self;
+  };
+
+  EventEmitter.prototype.emit = function() {
+
+    this._events || init.call(this);
+
+    var type = arguments[0];
+
+    if (type === 'newListener' && !this.newListener) {
+      if (!this._events.newListener) {
+        return false;
+      }
+    }
+
+    var al = arguments.length;
+    var args,l,i,j;
+    var handler;
+
+    if (this._all && this._all.length) {
+      handler = this._all.slice();
+      if (al > 3) {
+        args = new Array(al);
+        for (j = 0; j < al; j++) args[j] = arguments[j];
+      }
+
+      for (i = 0, l = handler.length; i < l; i++) {
+        this.event = type;
+        switch (al) {
+        case 1:
+          handler[i].call(this, type);
+          break;
+        case 2:
+          handler[i].call(this, type, arguments[1]);
+          break;
+        case 3:
+          handler[i].call(this, type, arguments[1], arguments[2]);
+          break;
+        default:
+          handler[i].apply(this, args);
+        }
+      }
+    }
+
+    if (this.wildcard) {
+      handler = [];
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      searchListenerTree.call(this, handler, ns, this.listenerTree, 0);
+    } else {
+      handler = this._events[type];
+      if (typeof handler === 'function') {
+        this.event = type;
+        switch (al) {
+        case 1:
+          handler.call(this);
+          break;
+        case 2:
+          handler.call(this, arguments[1]);
+          break;
+        case 3:
+          handler.call(this, arguments[1], arguments[2]);
+          break;
+        default:
+          args = new Array(al - 1);
+          for (j = 1; j < al; j++) args[j - 1] = arguments[j];
+          handler.apply(this, args);
+        }
+        return true;
+      } else if (handler) {
+        // need to make copy of handlers because list can change in the middle
+        // of emit call
+        handler = handler.slice();
+      }
+    }
+
+    if (handler && handler.length) {
+      if (al > 3) {
+        args = new Array(al - 1);
+        for (j = 1; j < al; j++) args[j - 1] = arguments[j];
+      }
+      for (i = 0, l = handler.length; i < l; i++) {
+        this.event = type;
+        switch (al) {
+        case 1:
+          handler[i].call(this);
+          break;
+        case 2:
+          handler[i].call(this, arguments[1]);
+          break;
+        case 3:
+          handler[i].call(this, arguments[1], arguments[2]);
+          break;
+        default:
+          handler[i].apply(this, args);
+        }
+      }
+      return true;
+    } else if (!this._all && type === 'error') {
+      if (arguments[1] instanceof Error) {
+        throw arguments[1]; // Unhandled 'error' event
+      } else {
+        throw new Error("Uncaught, unspecified 'error' event.");
+      }
+      return false;
+    }
+
+    return !!this._all;
+  };
+
+  EventEmitter.prototype.emitAsync = function() {
+
+    this._events || init.call(this);
+
+    var type = arguments[0];
+
+    if (type === 'newListener' && !this.newListener) {
+        if (!this._events.newListener) { return Promise.resolve([false]); }
+    }
+
+    var promises= [];
+
+    var al = arguments.length;
+    var args,l,i,j;
+    var handler;
+
+    if (this._all) {
+      if (al > 3) {
+        args = new Array(al);
+        for (j = 1; j < al; j++) args[j] = arguments[j];
+      }
+      for (i = 0, l = this._all.length; i < l; i++) {
+        this.event = type;
+        switch (al) {
+        case 1:
+          promises.push(this._all[i].call(this, type));
+          break;
+        case 2:
+          promises.push(this._all[i].call(this, type, arguments[1]));
+          break;
+        case 3:
+          promises.push(this._all[i].call(this, type, arguments[1], arguments[2]));
+          break;
+        default:
+          promises.push(this._all[i].apply(this, args));
+        }
+      }
+    }
+
+    if (this.wildcard) {
+      handler = [];
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      searchListenerTree.call(this, handler, ns, this.listenerTree, 0);
+    } else {
+      handler = this._events[type];
+    }
+
+    if (typeof handler === 'function') {
+      this.event = type;
+      switch (al) {
+      case 1:
+        promises.push(handler.call(this));
+        break;
+      case 2:
+        promises.push(handler.call(this, arguments[1]));
+        break;
+      case 3:
+        promises.push(handler.call(this, arguments[1], arguments[2]));
+        break;
+      default:
+        args = new Array(al - 1);
+        for (j = 1; j < al; j++) args[j - 1] = arguments[j];
+        promises.push(handler.apply(this, args));
+      }
+    } else if (handler && handler.length) {
+      if (al > 3) {
+        args = new Array(al - 1);
+        for (j = 1; j < al; j++) args[j - 1] = arguments[j];
+      }
+      for (i = 0, l = handler.length; i < l; i++) {
+        this.event = type;
+        switch (al) {
+        case 1:
+          promises.push(handler[i].call(this));
+          break;
+        case 2:
+          promises.push(handler[i].call(this, arguments[1]));
+          break;
+        case 3:
+          promises.push(handler[i].call(this, arguments[1], arguments[2]));
+          break;
+        default:
+          promises.push(handler[i].apply(this, args));
+        }
+      }
+    } else if (!this._all && type === 'error') {
+      if (arguments[1] instanceof Error) {
+        return Promise.reject(arguments[1]); // Unhandled 'error' event
+      } else {
+        return Promise.reject("Uncaught, unspecified 'error' event.");
+      }
+    }
+
+    return Promise.all(promises);
+  };
+
+  EventEmitter.prototype.on = function(type, listener) {
+    if (typeof type === 'function') {
+      this.onAny(type);
+      return this;
+    }
+
+    if (typeof listener !== 'function') {
+      throw new Error('on only accepts instances of Function');
+    }
+    this._events || init.call(this);
+
+    // To avoid recursion in the case that type == "newListeners"! Before
+    // adding it to the listeners, first emit "newListeners".
+    this.emit('newListener', type, listener);
+
+    if (this.wildcard) {
+      growListenerTree.call(this, type, listener);
+      return this;
+    }
+
+    if (!this._events[type]) {
+      // Optimize the case of one listener. Don't need the extra array object.
+      this._events[type] = listener;
+    }
+    else {
+      if (typeof this._events[type] === 'function') {
+        // Change to array.
+        this._events[type] = [this._events[type]];
+      }
+
+      // If we've already got an array, just append.
+      this._events[type].push(listener);
+
+      // Check for listener leak
+      if (
+        !this._events[type].warned &&
+        this._events.maxListeners > 0 &&
+        this._events[type].length > this._events.maxListeners
+      ) {
+        this._events[type].warned = true;
+        logPossibleMemoryLeak.call(this, this._events[type].length, type);
+      }
+    }
+
+    return this;
+  };
+
+  EventEmitter.prototype.onAny = function(fn) {
+    if (typeof fn !== 'function') {
+      throw new Error('onAny only accepts instances of Function');
+    }
+
+    if (!this._all) {
+      this._all = [];
+    }
+
+    // Add the function to the event listener collection.
+    this._all.push(fn);
+    return this;
+  };
+
+  EventEmitter.prototype.addListener = EventEmitter.prototype.on;
+
+  EventEmitter.prototype.off = function(type, listener) {
+    if (typeof listener !== 'function') {
+      throw new Error('removeListener only takes instances of Function');
+    }
+
+    var handlers,leafs=[];
+
+    if(this.wildcard) {
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      leafs = searchListenerTree.call(this, null, ns, this.listenerTree, 0);
+    }
+    else {
+      // does not use listeners(), so no side effect of creating _events[type]
+      if (!this._events[type]) return this;
+      handlers = this._events[type];
+      leafs.push({_listeners:handlers});
+    }
+
+    for (var iLeaf=0; iLeaf<leafs.length; iLeaf++) {
+      var leaf = leafs[iLeaf];
+      handlers = leaf._listeners;
+      if (isArray(handlers)) {
+
+        var position = -1;
+
+        for (var i = 0, length = handlers.length; i < length; i++) {
+          if (handlers[i] === listener ||
+            (handlers[i].listener && handlers[i].listener === listener) ||
+            (handlers[i]._origin && handlers[i]._origin === listener)) {
+            position = i;
+            break;
+          }
+        }
+
+        if (position < 0) {
+          continue;
+        }
+
+        if(this.wildcard) {
+          leaf._listeners.splice(position, 1);
+        }
+        else {
+          this._events[type].splice(position, 1);
+        }
+
+        if (handlers.length === 0) {
+          if(this.wildcard) {
+            delete leaf._listeners;
+          }
+          else {
+            delete this._events[type];
+          }
+        }
+
+        this.emit("removeListener", type, listener);
+
+        return this;
+      }
+      else if (handlers === listener ||
+        (handlers.listener && handlers.listener === listener) ||
+        (handlers._origin && handlers._origin === listener)) {
+        if(this.wildcard) {
+          delete leaf._listeners;
+        }
+        else {
+          delete this._events[type];
+        }
+
+        this.emit("removeListener", type, listener);
+      }
+    }
+
+    function recursivelyGarbageCollect(root) {
+      if (root === undefined) {
+        return;
+      }
+      var keys = Object.keys(root);
+      for (var i in keys) {
+        var key = keys[i];
+        var obj = root[key];
+        if ((obj instanceof Function) || (typeof obj !== "object") || (obj === null))
+          continue;
+        if (Object.keys(obj).length > 0) {
+          recursivelyGarbageCollect(root[key]);
+        }
+        if (Object.keys(obj).length === 0) {
+          delete root[key];
+        }
+      }
+    }
+    recursivelyGarbageCollect(this.listenerTree);
+
+    return this;
+  };
+
+  EventEmitter.prototype.offAny = function(fn) {
+    var i = 0, l = 0, fns;
+    if (fn && this._all && this._all.length > 0) {
+      fns = this._all;
+      for(i = 0, l = fns.length; i < l; i++) {
+        if(fn === fns[i]) {
+          fns.splice(i, 1);
+          this.emit("removeListenerAny", fn);
+          return this;
+        }
+      }
+    } else {
+      fns = this._all;
+      for(i = 0, l = fns.length; i < l; i++)
+        this.emit("removeListenerAny", fns[i]);
+      this._all = [];
+    }
+    return this;
+  };
+
+  EventEmitter.prototype.removeListener = EventEmitter.prototype.off;
+
+  EventEmitter.prototype.removeAllListeners = function(type) {
+    if (arguments.length === 0) {
+      !this._events || init.call(this);
+      return this;
+    }
+
+    if (this.wildcard) {
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      var leafs = searchListenerTree.call(this, null, ns, this.listenerTree, 0);
+
+      for (var iLeaf=0; iLeaf<leafs.length; iLeaf++) {
+        var leaf = leafs[iLeaf];
+        leaf._listeners = null;
+      }
+    }
+    else if (this._events) {
+      this._events[type] = null;
+    }
+    return this;
+  };
+
+  EventEmitter.prototype.listeners = function(type) {
+    if (this.wildcard) {
+      var handlers = [];
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      searchListenerTree.call(this, handlers, ns, this.listenerTree, 0);
+      return handlers;
+    }
+
+    this._events || init.call(this);
+
+    if (!this._events[type]) this._events[type] = [];
+    if (!isArray(this._events[type])) {
+      this._events[type] = [this._events[type]];
+    }
+    return this._events[type];
+  };
+
+  EventEmitter.prototype.listenerCount = function(type) {
+    return this.listeners(type).length;
+  };
+
+  EventEmitter.prototype.listenersAny = function() {
+
+    if(this._all) {
+      return this._all;
+    }
+    else {
+      return [];
+    }
+
+  };
+
+  if (typeof undefined === 'function' && undefined.amd) {
+     // AMD. Register as an anonymous module.
+    undefined(function() {
+      return EventEmitter;
+    });
+  } else {
+    // CommonJS
+    module.exports = EventEmitter;
+  }
+}();
+});
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class InteractiveMarkerHandle extends eventemitter2 {
+
+  /**
+   * Handle with signals for a single interactive marker.
+   *
+   * Emits the following events:
+   *
+   *  * 'pose' - emitted when a new pose comes from the server
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * message - the interactive marker message
+   *  * feedbackTopic - the ROSLIB.Topic associated with the feedback
+   *  * tfClient - a handle to the TF client to use
+   *  * menuFontSize (optional) - the menu font size
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.message = options.message;
+    this.feedbackTopic = options.feedbackTopic;
+    this.tfClient = options.tfClient;
+    this.menuFontSize = options.menuFontSize || '0.8em';
+    this.name = this.message.name;
+    this.header = this.message.header;
+    this.controls = this.message.controls;
+    this.menuEntries = this.message.menu_entries;
+    this.dragging = false;
+    this.timeoutHandle = null;
+    this.tfTransform = new ROSLIB.Transform();
+    this.pose = new ROSLIB.Pose();
+
+    this.setPoseFromClientBound = this.setPoseFromClient.bind(this);
+    this.onMouseDownBound = this.onMouseDown.bind(this);
+    this.onMouseUpBound = this.onMouseUp.bind(this);
+    this.onButtonClickBound = this.onButtonClick.bind(this);
+    this.onMenuSelectBound = this.onMenuSelect.bind(this);
+
+    // start by setting the pose
+    this.setPoseFromServer(this.message.pose);
+    this.tfUpdateBound = this.tfUpdate.bind(this);
+  };
+
+  /**
+   * Subscribe to the TF associated with this interactive marker.
+   */
+  subscribeTf() {
+    // subscribe to tf updates if frame-fixed
+    if (this.message.header.stamp.secs === 0.0 && this.message.header.stamp.nsecs === 0.0) {
+      this.tfClient.subscribe(this.message.header.frame_id, this.tfUpdateBound);
+    }
+  };
+
+  unsubscribeTf() {
+    this.tfClient.unsubscribe(this.message.header.frame_id, this.tfUpdateBound);
+  };
+
+  /**
+   * Emit the new pose that has come from the server.
+   */
+  emitServerPoseUpdate() {
+    var poseTransformed = new ROSLIB.Pose(this.pose);
+    poseTransformed.applyTransform(this.tfTransform);
+    this.emit('pose', poseTransformed);
+  };
+
+  /**
+   * Update the pose based on the pose given by the server.
+   *
+   * @param poseMsg - the pose given by the server
+   */
+  setPoseFromServer(poseMsg) {
+    this.pose = new ROSLIB.Pose(poseMsg);
+    this.emitServerPoseUpdate();
+  };
+
+  /**
+   * Update the pose based on the TF given by the server.
+   *
+   * @param transformMsg - the TF given by the server
+   */
+  tfUpdate(transformMsg) {
+    this.tfTransform = new ROSLIB.Transform(transformMsg);
+    this.emitServerPoseUpdate();
+  };
+
+  /**
+   * Set the pose from the client based on the given event.
+   *
+   * @param event - the event to base the change off of
+   */
+  setPoseFromClient(event) {
+    // apply the transform
+    this.pose = new ROSLIB.Pose(event);
+    var inv = this.tfTransform.clone();
+    inv.rotation.invert();
+    inv.translation.multiplyQuaternion(inv.rotation);
+    inv.translation.x *= -1;
+    inv.translation.y *= -1;
+    inv.translation.z *= -1;
+    this.pose.applyTransform(inv);
+
+    // send feedback to the server
+    this.sendFeedback(INTERACTIVE_MARKER_POSE_UPDATE, undefined, 0, event.controlName);
+
+    // keep sending pose feedback until the mouse goes up
+    if (this.dragging) {
+      if (this.timeoutHandle) {
+        clearTimeout(this.timeoutHandle);
+      }
+      this.timeoutHandle = setTimeout(this.setPoseFromClient.bind(this, event), 250);
+    }
+  };
+
+  /**
+   * Send the button click feedback to the server.
+   *
+   * @param event - the event associated with the button click
+   */
+  onButtonClick(event) {
+    this.sendFeedback(INTERACTIVE_MARKER_BUTTON_CLICK, event.clickPosition, 0,
+        event.controlName);
+  };
+
+  /**
+   * Send the mousedown feedback to the server.
+   *
+   * @param event - the event associated with the mousedown
+   */
+  onMouseDown(event) {
+    this.sendFeedback(INTERACTIVE_MARKER_MOUSE_DOWN, event.clickPosition, 0, event.controlName);
+    this.dragging = true;
+  };
+
+  /**
+   * Send the mouseup feedback to the server.
+   *
+   * @param event - the event associated with the mouseup
+   */
+  onMouseUp(event) {
+    this.sendFeedback(INTERACTIVE_MARKER_MOUSE_UP, event.clickPosition, 0, event.controlName);
+    this.dragging = false;
+    if (this.timeoutHandle) {
+      clearTimeout(this.timeoutHandle);
+    }
+  };
+
+  /**
+   * Send the menu select feedback to the server.
+   *
+   * @param event - the event associated with the menu select
+   */
+  onMenuSelect(event) {
+    this.sendFeedback(INTERACTIVE_MARKER_MENU_SELECT, undefined, event.id, event.controlName);
+  };
+
+  /**
+   * Send feedback to the interactive marker server.
+   *
+   * @param eventType - the type of event that happened
+   * @param clickPosition (optional) - the position in ROS space the click happened
+   * @param menuEntryID (optional) - the menu entry ID that is associated
+   * @param controlName - the name of the control
+   */
+  sendFeedback(eventType, clickPosition,
+      menuEntryID, controlName) {
+
+    // check for the click position
+    var mousePointValid = clickPosition !== undefined;
+    clickPosition = clickPosition || {
+      x : 0,
+      y : 0,
+      z : 0
+    };
+
+    var feedback = {
+      header : this.header,
+      client_id : this.clientID,
+      marker_name : this.name,
+      control_name : controlName,
+      event_type : eventType,
+      pose : this.pose,
+      mouse_point : clickPosition,
+      mouse_point_valid : mousePointValid,
+      menu_entry_id : menuEntryID
+    };
+    this.feedbackTopic.publish(feedback);
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class InteractiveMarkerClient {
+
+  /**
+   * A client for an interactive marker topic.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - a handle to the ROS connection
+   *  * tfClient - a handle to the TF client
+   *  * topic (optional) - the topic to subscribe to, like '/basic_controls', if not provided use subscribe() to start message receiving
+   *  * path (optional) - the base path to any meshes that will be loaded
+   *  * camera - the main camera associated with the viewer for this marker client
+   *  * rootObject (optional) - the root THREE 3D object to render to
+   *  * loader (optional) - the Collada loader to use (e.g., an instance of ROS3D.COLLADA_LOADER)
+   *  * menuFontSize (optional) - the menu font size
+   */
+  constructor(options) {
+    options = options || {};
+    this.ros = options.ros;
+    this.tfClient = options.tfClient;
+    this.topicName = options.topic;
+    this.path = options.path || '/';
+    this.camera = options.camera;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+    this.loader = options.loader;
+    this.menuFontSize = options.menuFontSize || '0.8em';
+
+    this.interactiveMarkers = {};
+    this.updateTopic = null;
+    this.feedbackTopic = null;
+
+    // check for an initial topic
+    if (this.topicName) {
+      this.subscribe(this.topicName);
+    }
+  };
+
+  /**
+   * Subscribe to the given interactive marker topic. This will unsubscribe from any current topics.
+   *
+   * @param topic - the topic to subscribe to, like '/basic_controls'
+   */
+  subscribe(topic) {
+    // unsubscribe to the other topics
+    this.unsubscribe();
+
+    this.updateTopic = new ROSLIB.Topic({
+      ros : this.ros,
+      name : topic + '/tunneled/update',
+      messageType : 'visualization_msgs/InteractiveMarkerUpdate',
+      compression : 'png'
+    });
+    this.updateTopic.subscribe(this.processUpdate.bind(this));
+
+    this.feedbackTopic = new ROSLIB.Topic({
+      ros : this.ros,
+      name : topic + '/feedback',
+      messageType : 'visualization_msgs/InteractiveMarkerFeedback',
+      compression : 'png'
+    });
+    this.feedbackTopic.advertise();
+
+    this.initService = new ROSLIB.Service({
+      ros : this.ros,
+      name : topic + '/tunneled/get_init',
+      serviceType : 'demo_interactive_markers/GetInit'
+    });
+    var request = new ROSLIB.ServiceRequest({});
+    this.initService.callService(request, this.processInit.bind(this));
+  };
+
+  /**
+   * Unsubscribe from the current interactive marker topic.
+   */
+  unsubscribe() {
+    if (this.updateTopic) {
+      this.updateTopic.unsubscribe();
+    }
+    if (this.feedbackTopic) {
+      this.feedbackTopic.unadvertise();
+    }
+    // erase all markers
+    for (var intMarkerName in this.interactiveMarkers) {
+      this.eraseIntMarker(intMarkerName);
+    }
+    this.interactiveMarkers = {};
+  };
+
+  /**
+   * Process the given interactive marker initialization message.
+   *
+   * @param initMessage - the interactive marker initialization message to process
+   */
+  processInit(initMessage) {
+    var message = initMessage.msg;
+
+    // erase any old markers
+    message.erases = [];
+    for (var intMarkerName in this.interactiveMarkers) {
+      message.erases.push(intMarkerName);
+    }
+    message.poses = [];
+
+    // treat it as an update
+    this.processUpdate(message);
+  };
+
+  /**
+   * Process the given interactive marker update message.
+   *
+   * @param initMessage - the interactive marker update message to process
+   */
+  processUpdate(message) {
+    var that = this;
+
+    // erase any markers
+    message.erases.forEach(function(name) {
+      that.eraseIntMarker(name);
+    });
+
+    // updates marker poses
+    message.poses.forEach(function(poseMessage) {
+      var marker = that.interactiveMarkers[poseMessage.name];
+      if (marker) {
+        marker.setPoseFromServer(poseMessage.pose);
+      }
+    });
+
+    // add new markers
+    message.markers.forEach(function(msg) {
+      // get rid of anything with the same name
+      var oldhandle = that.interactiveMarkers[msg.name];
+      if (oldhandle) {
+        that.eraseIntMarker(oldhandle.name);
+      }
+
+      // create the handle
+      var handle = new InteractiveMarkerHandle({
+        message : msg,
+        feedbackTopic : that.feedbackTopic,
+        tfClient : that.tfClient,
+        menuFontSize : that.menuFontSize
+      });
+      that.interactiveMarkers[msg.name] = handle;
+
+      // create the actual marker
+      var intMarker = new InteractiveMarker({
+        handle : handle,
+        camera : that.camera,
+        path : that.path,
+        loader : that.loader
+      });
+      // add it to the scene
+      intMarker.name = msg.name;
+      that.rootObject.add(intMarker);
+
+      // listen for any pose updates from the server
+      handle.on('pose', function(pose) {
+        intMarker.onServerSetPose({
+          pose : pose
+        });
+      });
+
+      // add bound versions of UI handlers
+      intMarker.addEventListener('user-pose-change', handle.setPoseFromClientBound);
+      intMarker.addEventListener('user-mousedown', handle.onMouseDownBound);
+      intMarker.addEventListener('user-mouseup', handle.onMouseUpBound);
+      intMarker.addEventListener('user-button-click', handle.onButtonClickBound);
+      intMarker.addEventListener('menu-select', handle.onMenuSelectBound);
+
+      // now listen for any TF changes
+      handle.subscribeTf();
+    });
+  };
+
+  /**
+   * Erase the interactive marker with the given name.
+   *
+   * @param intMarkerName - the interactive marker name to delete
+   */
+  eraseIntMarker(intMarkerName) {
+    if (this.interactiveMarkers[intMarkerName]) {
+      // remove the object
+      var targetIntMarker = this.rootObject.getObjectByName(intMarkerName);
+      this.rootObject.remove(targetIntMarker);
+      // unsubscribe from TF topic!
+      var handle = this.interactiveMarkers[intMarkerName];
+      handle.unsubscribeTf();
+
+      // remove all other listeners
+
+      targetIntMarker.removeEventListener('user-pose-change', handle.setPoseFromClientBound);
+      targetIntMarker.removeEventListener('user-mousedown', handle.onMouseDownBound);
+      targetIntMarker.removeEventListener('user-mouseup', handle.onMouseUpBound);
+      targetIntMarker.removeEventListener('user-button-click', handle.onButtonClickBound);
+      targetIntMarker.removeEventListener('menu-select', handle.onMenuSelectBound);
+
+      // remove the handle from the map - after leaving this function's scope, there should be no references to the handle
+      delete this.interactiveMarkers[intMarkerName];
+      targetIntMarker.dispose();
+    }
+  };
+}
+
+/**
+ * @author Jihoon Lee - jihoonlee.in@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class SceneNode extends THREE$1.Object3D {
+
+  /**
+   * A SceneNode can be used to keep track of a 3D object with respect to a ROS frame within a scene.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * tfClient - a handle to the TF client
+   *  * frameID - the frame ID this object belongs to
+   *  * pose (optional) - the pose associated with this object
+   *  * object - the THREE 3D object to be rendered
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    var that = this;
+    this.tfClient = options.tfClient;
+    this.frameID = options.frameID;
+    var object = options.object;
+    this.pose = options.pose || new ROSLIB.Pose();
+
+    // Do not render this object until we receive a TF update
+    this.visible = false;
+
+    // add the model
+    this.add(object);
+
+    // set the inital pose
+    this.updatePose(this.pose);
+
+    // save the TF handler so we can remove it later
+    this.tfUpdate = function(msg) {
+
+      // apply the transform
+      var tf = new ROSLIB.Transform(msg);
+      var poseTransformed = new ROSLIB.Pose(that.pose);
+      poseTransformed.applyTransform(tf);
+
+      // update the world
+      that.updatePose(poseTransformed);
+      that.visible = true;
+    };
+
+    // listen for TF updates
+    this.tfClient.subscribe(this.frameID, this.tfUpdate);
+  };
+
+  /**
+   * Set the pose of the associated model.
+   *
+   * @param pose - the pose to update with
+   */
+  updatePose(pose) {
+    this.position.set( pose.position.x, pose.position.y, pose.position.z );
+    this.quaternion.set(pose.orientation.x, pose.orientation.y,
+        pose.orientation.z, pose.orientation.w);
+    this.updateMatrixWorld(true);
+  };
+
+  unsubscribeTf() {
+    this.tfClient.unsubscribe(this.frameID, this.tfUpdate);
+  };
+}
+
+/**
+ * @author Russell Toris - rctoris@wpi.edu
+ * @author Nils Berg - berg.nils@gmail.com
+ */
+
+class MarkerArrayClient extends eventemitter2 {
+
+  /**
+   * A MarkerArray client that listens to a given topic.
+   *
+   * Emits the following events:
+   *
+   *  * 'change' - there was an update or change in the MarkerArray
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * ros - the ROSLIB.Ros connection handle
+   *   * topic - the marker topic to listen to
+   *   * tfClient - the TF client handle to use
+   *   * rootObject (optional) - the root object to add the markers to
+   *   * path (optional) - the base path to any meshes that will be loaded
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic;
+    this.tfClient = options.tfClient;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+    this.path = options.path || '/';
+
+    // Markers that are displayed (Map ns+id--Marker)
+    this.markers = {};
+    this.rosTopic = undefined;
+
+    this.subscribe();
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to MarkerArray topic
+    this.rosTopic = new ROSLIB.Topic({
+      ros : this.ros,
+      name : this.topicName,
+      messageType : 'visualization_msgs/MarkerArray',
+      compression : 'png'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(arrayMessage){
+    arrayMessage.markers.forEach(function(message) {
+      if(message.action === 0) {
+        var updated = false;
+        if(message.ns + message.id in this.markers) { // "MODIFY"
+          updated = this.markers[message.ns + message.id].children[0].update(message);
+          if(!updated) { // "REMOVE"
+            this.markers[message.ns + message.id].unsubscribeTf();
+            this.rootObject.remove(this.markers[message.ns + message.id]);
+          }
+        }
+        if(!updated) { // "ADD"
+          var newMarker = new Marker({
+            message : message,
+            path : this.path,
+          });
+          this.markers[message.ns + message.id] = new SceneNode({
+            frameID : message.header.frame_id,
+            tfClient : this.tfClient,
+            object : newMarker
+          });
+          this.rootObject.add(this.markers[message.ns + message.id]);
+        }
+      }
+      else if(message.action === 1) { // "DEPRECATED"
+        console.warn('Received marker message with deprecated action identifier "1"');
+      }
+      else if(message.action === 2) { // "DELETE"
+        this.markers[message.ns + message.id].unsubscribeTf();
+        this.rootObject.remove(this.markers[message.ns + message.id]);
+        delete this.markers[message.ns + message.id];
+      }
+      else if(message.action === 3) { // "DELETE ALL"
+        for (var m in this.markers){
+          this.markers[m].unsubscribeTf();
+          this.rootObject.remove(this.markers[m]);
+        }
+        this.markers = {};
+      }
+      else {
+        console.warn('Received marker message with unknown action identifier "'+message.action+'"');
+      }
+    }.bind(this));
+
+    this.emit('change');
+  };
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+}
+
+/**
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class MarkerClient extends eventemitter2 {
+
+  /**
+   * A marker client that listens to a given marker topic.
+   *
+   * Emits the following events:
+   *
+   *  * 'change' - there was an update or change in the marker
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * ros - the ROSLIB.Ros connection handle
+   *   * topic - the marker topic to listen to
+   *   * tfClient - the TF client handle to use
+   *   * rootObject (optional) - the root object to add this marker to
+   *   * path (optional) - the base path to any meshes that will be loaded
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic;
+    this.tfClient = options.tfClient;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+    this.path = options.path || '/';
+
+    // Markers that are displayed (Map ns+id--Marker)
+    this.markers = {};
+    this.rosTopic = undefined;
+
+    this.subscribe();
+  };
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+      ros : this.ros,
+      name : this.topicName,
+      messageType : 'visualization_msgs/Marker',
+      compression : 'png'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    var newMarker = new Marker({
+      message : message,
+      path : this.path,
+    });
+
+    // remove old marker from Three.Object3D children buffer
+    var oldNode = this.markers[message.ns + message.id];
+    if (oldNode) {
+      oldNode.unsubscribeTf();
+      this.rootObject.remove(oldNode);
+    }
+
+    this.markers[message.ns + message.id] = new SceneNode({
+      frameID : message.header.frame_id,
+      tfClient : this.tfClient,
+      object : newMarker
+    });
+    this.rootObject.add(this.markers[message.ns + message.id]);
+
+    this.emit('change');
+  };
+}
+
+/**
+ * @author Jihoon Lee - lee@magazino.eu
+ */
+
+class Arrow2 extends THREE$1.ArrowHelper {
+
+  /**
+   * A Arrow is a THREE object that can be used to display an arrow model using ArrowHelper
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * origin (optional) - the origin of the arrow
+   *   * direction (optional) - the direction vector of the arrow
+   *   * length (optional) - the length of the arrow
+   *   * headLength (optional) - the head length of the arrow
+   *   * shaftDiameter (optional) - the shaft diameter of the arrow
+   *   * headDiameter (optional) - the head diameter of the arrow
+   *   * material (optional) - the material to use for this arrow
+   */
+  constructor(options) {
+    options = options || {};
+    var origin = options.origin || new THREE$1.Vector3(0, 0, 0);
+    var direction = options.direction || new THREE$1.Vector3(1, 0, 0);
+    var length = options.length || 1;
+    var headLength = options.headLength || 0.2;
+    var shaftDiameter = options.shaftDiameter || 0.05;
+    var headDiameter = options.headDiameter || 0.1;
+    var material = options.material || new THREE$1.MeshBasicMaterial();
+
+    super(direction, origin, length, 0xff0000);
+
+  };
+
+
+  /*
+   * Free memory of elements in this object.
+   */
+  dispose() {
+    if (this.line !== undefined) {
+        this.line.material.dispose();
+        this.line.geometry.dispose();
+    }
+    if (this.cone!== undefined) {
+        this.cone.material.dispose();
+        this.cone.geometry.dispose();
+    }
+  };
+
+  /*
+  setLength ( length, headLength, headWidth ) {
+  	if ( headLength === undefined ) {
+      headLength = 0.2 * length;
+    }
+  	if ( headWidth === undefined ) {
+      headWidth = 0.2 * headLength;
+    }
+
+  	this.line.scale.set( 1, Math.max( 0, length), 1 );
+  	this.line.updateMatrix();
+
+  	this.cone.scale.set( headWidth, headLength, headWidth );
+  	this.cone.position.y = length;
+  	this.cone.updateMatrix();
+
+  };
+  */
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class Axes extends THREE$1.Object3D {
+
+  /**
+   * An Axes object can be used to display the axis of a particular coordinate frame.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * shaftRadius (optional) - the radius of the shaft to render
+   *   * headRadius (optional) - the radius of the head to render
+   *   * headLength (optional) - the length of the head to render
+   */
+  constructor(options) {
+    super();
+    var that = this;
+    options = options || {};
+    var shaftRadius = options.shaftRadius || 0.008;
+    var headRadius = options.headRadius || 0.023;
+    var headLength = options.headLength || 0.1;
+
+
+    // create the cylinders for the objects
+    this.lineGeom = new THREE$1.CylinderGeometry(shaftRadius, shaftRadius, 1.0 - headLength);
+    this.headGeom = new THREE$1.CylinderGeometry(0, headRadius, headLength);
+
+    /**
+     * Adds an axis marker to this axes object.
+     *
+     * @param axis - the 3D vector representing the axis to add
+     */
+    function addAxis(axis) {
+      // set the color of the axis
+      var color = new THREE$1.Color();
+      color.setRGB(axis.x, axis.y, axis.z);
+      var material = new THREE$1.MeshBasicMaterial({
+        color : color.getHex()
+      });
+
+      // setup the rotation information
+      var rotAxis = new THREE$1.Vector3();
+      rotAxis.crossVectors(axis, new THREE$1.Vector3(0, -1, 0));
+      var rot = new THREE$1.Quaternion();
+      rot.setFromAxisAngle(rotAxis, 0.5 * Math.PI);
+
+      // create the arrow
+      var arrow = new THREE$1.Mesh(that.headGeom, material);
+      arrow.position.copy(axis);
+      arrow.position.multiplyScalar(0.95);
+      arrow.quaternion.copy(rot);
+      arrow.updateMatrix();
+      that.add(arrow);
+
+      // create the line
+      var line = new THREE$1.Mesh(that.lineGeom, material);
+      line.position.copy(axis);
+      line.position.multiplyScalar(0.45);
+      line.quaternion.copy(rot);
+      line.updateMatrix();
+      that.add(line);
+    }
+
+    // add the three markers to the axes
+    addAxis(new THREE$1.Vector3(1, 0, 0));
+    addAxis(new THREE$1.Vector3(0, 1, 0));
+    addAxis(new THREE$1.Vector3(0, 0, 1));
+  };
+}
+
+/**
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class Grid extends THREE$1.Object3D {
+
+  /**
+   * Create a grid object.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * num_cells (optional) - The number of cells of the grid
+   *  * color (optional) - the line color of the grid, like '#cccccc'
+   *  * lineWidth (optional) - the width of the lines in the grid
+   *  * cellSize (optional) - The length, in meters, of the side of each cell
+   */
+  constructor(options) {
+    options = options || {};
+    var num_cells = options.num_cells || 10;
+    var color = options.color || '#cccccc';
+    var lineWidth = options.lineWidth || 1;
+    var cellSize = options.cellSize || 1;
+
+    super();
+
+    var material = new THREE$1.LineBasicMaterial({
+      color: color,
+      linewidth: lineWidth
+    });
+
+    for (var i = 0; i <= num_cells; ++i) {
+      var edge = cellSize * num_cells / 2;
+      var position = edge - (i * cellSize);
+      var geometryH = new THREE$1.Geometry();
+      geometryH.vertices.push(
+        new THREE$1.Vector3( -edge, position, 0 ),
+        new THREE$1.Vector3( edge, position, 0 )
+      );
+      var geometryV = new THREE$1.Geometry();
+      geometryV.vertices.push(
+        new THREE$1.Vector3( position, -edge, 0 ),
+        new THREE$1.Vector3( position, edge, 0 )
+      );
+      this.add(new THREE$1.Line(geometryH, material));
+      this.add(new THREE$1.Line(geometryV, material));
+    }
+  };
+}
+
+/**
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class OccupancyGrid extends THREE$1.Mesh {
+
+  /**
+   * An OccupancyGrid can convert a ROS occupancy grid message into a THREE object.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * message - the occupancy grid message
+   *   * color (optional) - color of the visualized grid
+   *   * opacity (optional) - opacity of the visualized grid (0.0 == fully transparent, 1.0 == opaque)
+   */
+  constructor(options) {
+    options = options || {};
+    var message = options.message;
+    var color = options.color || {r:255,g:255,b:255};
+    var opacity = options.opacity || 1.0;
+
+    // create the geometry
+    var width = message.info.width;
+    var height = message.info.height;
+    var geom = new THREE$1.PlaneGeometry(width, height);
+
+    // internal drawing canvas
+    var canvas = document.createElement('canvas');
+    canvas.width = width;
+    canvas.height = height;
+    var context = canvas.getContext('2d');
+    // create the color material
+    var imageData = context.createImageData(width, height);
+    for ( var row = 0; row < height; row++) {
+      for ( var col = 0; col < width; col++) {
+        // determine the index into the map data
+        var mapI = col + ((height - row - 1) * width);
+        // determine the value
+        var data = message.data[mapI];
+        var val;
+        if (data === 100) {
+          val = 0;
+        } else if (data === 0) {
+          val = 255;
+        } else {
+          val = 127;
+        }
+
+        // determine the index into the image data array
+        var i = (col + (row * width)) * 4;
+        // r
+        imageData.data[i] = (val * color.r) / 255;
+        // g
+        imageData.data[++i] = (val * color.g) / 255;
+        // b
+        imageData.data[++i] = (val * color.b) / 255;
+        // a
+        imageData.data[++i] = 255;
+      }
+    }
+    context.putImageData(imageData, 0, 0);
+
+    var texture = new THREE$1.Texture(canvas);
+    texture.needsUpdate = true;
+
+    var material = new THREE$1.MeshBasicMaterial({
+      map : texture,
+      transparent : opacity < 1.0,
+      opacity : opacity
+    });
+    material.side = THREE$1.DoubleSide;
+
+    // create the mesh
+    super(geom, material);
+    // move the map so the corner is at X, Y and correct orientation (informations from message.info)
+    this.quaternion = new THREE$1.Quaternion(
+        message.info.origin.orientation.x,
+        message.info.origin.orientation.y,
+        message.info.origin.orientation.z,
+        message.info.origin.orientation.w
+    );
+    this.position.x = (width * message.info.resolution) / 2 + message.info.origin.position.x;
+    this.position.y = (height * message.info.resolution) / 2 + message.info.origin.position.y;
+    this.position.z = message.info.origin.position.z;
+    this.scale.x = message.info.resolution;
+    this.scale.y = message.info.resolution;
+  };
+}
+
+/**
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class OccupancyGridClient extends eventemitter2 {
+
+  /**
+   * An occupancy grid client that listens to a given map topic.
+   *
+   * Emits the following events:
+   *
+   *  * 'change' - there was an update or change in the marker
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * ros - the ROSLIB.Ros connection handle
+   *   * topic (optional) - the map topic to listen to
+   *   * continuous (optional) - if the map should be continuously loaded (e.g., for SLAM)
+   *   * tfClient (optional) - the TF client handle to use for a scene node
+   *   * rootObject (optional) - the root object to add this marker to
+   *   * offsetPose (optional) - offset pose of the grid visualization, e.g. for z-offset (ROSLIB.Pose type)
+   *   * color (optional) - color of the visualized grid
+   *   * opacity (optional) - opacity of the visualized grid (0.0 == fully transparent, 1.0 == opaque)
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/map';
+    this.continuous = options.continuous;
+    this.tfClient = options.tfClient;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+    this.offsetPose = options.offsetPose || new ROSLIB.Pose();
+    this.color = options.color || {r:255,g:255,b:255};
+    this.opacity = options.opacity || 1.0;
+
+    // current grid that is displayed
+    this.currentGrid = null;
+
+    // subscribe to the topic
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+      ros : this.ros,
+      name : this.topicName,
+      messageType : 'nav_msgs/OccupancyGrid',
+      compression : 'png'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    // check for an old map
+    if (this.currentGrid) {
+      // check if it there is a tf client
+      if (this.currentGrid.tfClient) {
+        // grid is of type ROS3D.SceneNode
+        this.currentGrid.unsubscribeTf();
+      }
+      this.rootObject.remove(this.currentGrid);
+    }
+
+    var newGrid = new OccupancyGrid({
+      message : message,
+      color : this.color,
+      opacity : this.opacity
+    });
+
+    // check if we care about the scene
+    if (this.tfClient) {
+      this.currentGrid = newGrid;
+      this.sceneNode = new SceneNode({
+        frameID : message.header.frame_id,
+        tfClient : this.tfClient,
+        object : newGrid,
+        pose : this.offsetPose
+      });
+    } else {
+      this.sceneNode = this.currentGrid = newGrid;
+    }
+
+    this.rootObject.add(this.sceneNode);
+
+    this.emit('change');
+
+    // check if we should unsubscribe
+    if (!this.continuous) {
+      this.rosTopic.unsubscribe();
+    }
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ */
+
+class Odometry extends THREE$1.Object3D {
+
+  /**
+   * An Odometry client
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to
+   *  * keep (optional) - number of markers to keep around (default: 1)
+   *  * color (optional) - color for line (default: 0xcc00ff)
+   *  * length (optional) - the length of the arrow (default: 1.0)
+   *  * headLength (optional) - the head length of the arrow (default: 0.2)
+   *  * shaftDiameter (optional) - the shaft diameter of the arrow (default: 0.05)
+   *  * headDiameter (optional) - the head diameter of the arrow (default: 0.1)
+   */
+  constructor(options) {
+    super();
+    this.options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/particlecloud';
+    this.tfClient = options.tfClient;
+    this.color = options.color || 0xcc00ff;
+    this.length = options.length || 1.0;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+    this.keep = options.keep || 1;
+
+    this.sns = [];
+
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+      ros : this.ros,
+      name : this.topicName,
+      messageType : 'nav_msgs/Odometry'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    if(this.sns.length >= this.keep) {
+        this.sns[0].unsubscribeTf();
+        this.rootObject.remove(this.sns[0]);
+        this.sns.shift();
+    }
+
+    this.options.origin = new THREE$1.Vector3( message.pose.pose.position.x, message.pose.pose.position.y,
+                                             message.pose.pose.position.z);
+
+    var rot = new THREE$1.Quaternion(message.pose.pose.orientation.x, message.pose.pose.orientation.y,
+                                   message.pose.pose.orientation.z, message.pose.pose.orientation.w);
+    this.options.direction = new THREE$1.Vector3(1,0,0);
+    this.options.direction.applyQuaternion(rot);
+    this.options.material = new THREE$1.MeshBasicMaterial({color: this.color});
+    var arrow = new Arrow(this.options);
+
+    this.sns.push(new SceneNode({
+      frameID : message.header.frame_id,
+      tfClient : this.tfClient,
+      object : arrow
+    }));
+
+    this.rootObject.add(this.sns[ this.sns.length - 1]);
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ */
+
+class Path$1 extends THREE$1.Object3D {
+
+  /**
+   * A Path client that listens to a given topic and displays a line connecting the poses.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to
+   *  * color (optional) - color for line (default: 0xcc00ff)
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/path';
+    this.tfClient = options.tfClient;
+    this.color = options.color || 0xcc00ff;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+
+    this.sn = null;
+    this.line = null;
+
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+        ros : this.ros,
+        name : this.topicName,
+        messageType : 'nav_msgs/Path'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    if(this.sn!==null){
+        this.sn.unsubscribeTf();
+        this.rootObject.remove(this.sn);
+    }
+
+    var lineGeometry = new THREE$1.Geometry();
+    for(var i=0; i<message.poses.length;i++){
+        var v3 = new THREE$1.Vector3( message.poses[i].pose.position.x, message.poses[i].pose.position.y,
+                                    message.poses[i].pose.position.z);
+        lineGeometry.vertices.push(v3);
+    }
+
+    lineGeometry.computeLineDistances();
+    var lineMaterial = new THREE$1.LineBasicMaterial( { color: this.color } );
+    var line = new THREE$1.Line( lineGeometry, lineMaterial );
+
+    this.sn = new SceneNode({
+        frameID : message.header.frame_id,
+        tfClient : this.tfClient,
+        object : line
+    });
+
+    this.rootObject.add(this.sn);
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ */
+
+class Point extends THREE$1.Object3D {
+
+  /**
+   * A PointStamped client
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to
+   *  * color (optional) - color for line (default: 0xcc00ff)
+   *  * radius (optional) - radius of the point (default: 0.2)
+   */
+  constructor(options) {
+    super();
+    this.options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/point';
+    this.tfClient = options.tfClient;
+    this.color = options.color || 0xcc00ff;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+    this.radius = options.radius || 0.2;
+
+    this.sn = null;
+
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+        ros : this.ros,
+        name : this.topicName,
+        messageType : 'geometry_msgs/PointStamped'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    if(this.sn!==null){
+        this.sn.unsubscribeTf();
+        this.rootObject.remove(this.sn);
+    }
+
+    var sphereGeometry = new THREE$1.SphereGeometry( this.radius );
+    var sphereMaterial = new THREE$1.MeshBasicMaterial( {color: this.color} );
+    var sphere = new THREE$1.Mesh(sphereGeometry, sphereMaterial);
+    sphere.position.set(message.point.x, message.point.y, message.point.z);
+
+    this.sn = new SceneNode({
+        frameID : message.header.frame_id,
+        tfClient : this.tfClient,
+        object : sphere
+    });
+
+    this.rootObject.add(this.sn);
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ */
+
+class Polygon extends THREE$1.Object3D {
+
+  /**
+   * A PolygonStamped client that listens to a given topic and displays the polygon
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to
+   *  * color (optional) - color for line (default: 0xcc00ff)
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/path';
+    this.tfClient = options.tfClient;
+    this.color = options.color || 0xcc00ff;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+
+    this.sn = null;
+    this.line = null;
+
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+        ros : this.ros,
+        name : this.topicName,
+        messageType : 'geometry_msgs/PolygonStamped'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    if(this.sn!==null){
+        this.sn.unsubscribeTf();
+        this.rootObject.remove(this.sn);
+    }
+
+    var lineGeometry = new THREE$1.Geometry();
+    var v3;
+    for(var i=0; i<message.polygon.points.length;i++){
+        v3 = new THREE$1.Vector3( message.polygon.points[i].x, message.polygon.points[i].y,
+                                message.polygon.points[i].z);
+        lineGeometry.vertices.push(v3);
+    }
+    v3 = new THREE$1.Vector3( message.polygon.points[0].x, message.polygon.points[0].y,
+                            message.polygon.points[0].z);
+    lineGeometry.vertices.push(v3);
+    lineGeometry.computeLineDistances();
+    var lineMaterial = new THREE$1.LineBasicMaterial( { color: this.color } );
+    var line = new THREE$1.Line( lineGeometry, lineMaterial );
+
+    this.sn = new SceneNode({
+        frameID : message.header.frame_id,
+        tfClient : this.tfClient,
+        object : line
+    });
+
+    this.rootObject.add(this.sn);
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ */
+
+class Pose extends THREE$1.Object3D {
+
+  /**
+   * A PoseStamped client
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to
+   *  * color (optional) - color for line (default: 0xcc00ff)
+   *  * length (optional) - the length of the arrow (default: 1.0)
+   *  * headLength (optional) - the head length of the arrow (default: 0.2)
+   *  * shaftDiameter (optional) - the shaft diameter of the arrow (default: 0.05)
+   *  * headDiameter (optional) - the head diameter of the arrow (default: 0.1)
+   */
+  constructor(options) {
+    super();
+    this.options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/pose';
+    this.tfClient = options.tfClient;
+    this.color = options.color || 0xcc00ff;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+
+    this.sn = null;
+
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+        ros : this.ros,
+        name : this.topicName,
+        messageType : 'geometry_msgs/PoseStamped'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    if(this.sn!==null){
+        this.sn.unsubscribeTf();
+        this.rootObject.remove(this.sn);
+    }
+
+    this.options.origin = new THREE$1.Vector3( message.pose.position.x, message.pose.position.y,
+                                             message.pose.position.z);
+
+    var rot = new THREE$1.Quaternion(message.pose.orientation.x, message.pose.orientation.y,
+                                   message.pose.orientation.z, message.pose.orientation.w);
+    this.options.direction = new THREE$1.Vector3(1,0,0);
+    this.options.direction.applyQuaternion(rot);
+    this.options.material = new THREE$1.MeshBasicMaterial({color: this.color});
+    var arrow = new Arrow(this.options);
+
+    this.sn = new SceneNode({
+        frameID : message.header.frame_id,
+        tfClient : this.tfClient,
+        object : arrow
+    });
+
+    this.rootObject.add(this.sn);
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ */
+
+class PoseArray extends THREE$1.Object3D {
+
+  /**
+   * A PoseArray client
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to
+   *  * color (optional) - color for line (default: 0xcc00ff)
+   *  * length (optional) - the length of the arrow (default: 1.0)
+   */
+  constructor(options) {
+    super();
+    this.options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/particlecloud';
+    this.tfClient = options.tfClient;
+    this.color = options.color || 0xcc00ff;
+    this.length = options.length || 1.0;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+
+    this.sn = null;
+
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+       ros : this.ros,
+       name : this.topicName,
+       messageType : 'geometry_msgs/PoseArray'
+   });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    if(this.sn!==null){
+        this.sn.unsubscribeTf();
+        this.rootObject.remove(this.sn);
+    }
+
+    var group = new THREE$1.Object3D();
+    var line;
+
+    for(var i=0;i<message.poses.length;i++){
+        var lineGeometry = new THREE$1.Geometry();
+
+        var v3 = new THREE$1.Vector3( message.poses[i].position.x, message.poses[i].position.y,
+                                    message.poses[i].position.z);
+        lineGeometry.vertices.push(v3);
+
+        var rot = new THREE$1.Quaternion(message.poses[i].orientation.x, message.poses[i].orientation.y,
+                                       message.poses[i].orientation.z, message.poses[i].orientation.w);
+
+        var tip = new THREE$1.Vector3(this.length,0,0);
+        var side1 = new THREE$1.Vector3(this.length*0.8, this.length*0.2, 0);
+        var side2 = new THREE$1.Vector3(this.length*0.8, -this.length*0.2, 0);
+        tip.applyQuaternion(rot);
+        side1.applyQuaternion(rot);
+        side2.applyQuaternion(rot);
+
+        lineGeometry.vertices.push(tip.add(v3));
+        lineGeometry.vertices.push(side1.add(v3));
+        lineGeometry.vertices.push(side2.add(v3));
+        lineGeometry.vertices.push(tip);
+
+        lineGeometry.computeLineDistances();
+        var lineMaterial = new THREE$1.LineBasicMaterial( { color: this.color } );
+        line = new THREE$1.Line( lineGeometry, lineMaterial );
+
+        group.add(line);
+    }
+
+    this.sn = new SceneNode({
+        frameID : message.header.frame_id,
+        tfClient : this.tfClient,
+        object : group
+    });
+
+    this.rootObject.add(this.sn);
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ */
+
+class PoseWithCovariance extends THREE$1.Object3D {
+
+  /**
+   * A PoseWithCovarianceStamped client
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to
+   *  * color (optional) - color for line (default: 0xcc00ff)
+   */
+  constructor(options) {
+    super();
+    this.options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/PoseWithCovariance';
+    this.tfClient = options.tfClient;
+    this.color = options.color || 0xcc00ff;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+
+    this.sn = null;
+
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+        ros : this.ros,
+        name : this.topicName,
+        messageType : 'geometry_msgs/PoseWithCovarianceStamped'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    if(this.sn!==null){
+        this.sn.unsubscribeTf();
+        this.rootObject.remove(this.sn);
+    }
+
+    this.options.origin = new THREE$1.Vector3( message.pose.pose.position.x, message.pose.pose.position.y,
+                                             message.pose.pose.position.z);
+
+    var rot = new THREE$1.Quaternion(message.pose.pose.orientation.x, message.pose.pose.orientation.y,
+                                   message.pose.pose.orientation.z, message.pose.pose.orientation.w);
+    this.options.direction = new THREE$1.Vector3(1,0,0);
+    this.options.direction.applyQuaternion(rot);
+    this.options.material = new THREE$1.MeshBasicMaterial({color: this.color});
+    var arrow = new Arrow(this.options);
+
+    this.sn = new SceneNode({
+        frameID : message.header.frame_id,
+        tfClient : this.tfClient,
+        object : arrow
+    });
+
+    this.rootObject.add(this.sn);
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ * @author Mathieu Bredif - mathieu.bredif@ign.fr
+ */
+
+class Points$1 extends THREE$1.Object3D {
+
+  /**
+   * A set of points. Used by PointCloud2 and LaserScan.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to use for the points.
+   *  * max_pts (optional) - number of points to draw (default: 10000)
+   *  * pointRatio (optional) - point subsampling ratio (default: 1, no subsampling)
+   *  * messageRatio (optional) - message subsampling ratio (default: 1, no subsampling)
+   *  * material (optional) - a material object or an option to construct a PointsMaterial.
+   *  * colorsrc (optional) - the field to be used for coloring (default: 'rgb')
+   *  * colormap (optional) - function that turns the colorsrc field value to a color
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.tfClient = options.tfClient;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+    this.max_pts = options.max_pts || 10000;
+    this.pointRatio = options.pointRatio || 1;
+    this.messageRatio = options.messageRatio || 1;
+    this.messageCount = 0;
+    this.material = options.material || {};
+    this.colorsrc = options.colorsrc;
+    this.colormap = options.colormap;
+
+    if(('color' in options) || ('size' in options) || ('texture' in options)) {
+        console.warn(
+          'toplevel "color", "size" and "texture" options are deprecated.' +
+          'They should beprovided within a "material" option, e.g. : '+
+          ' { tfClient, material : { color: mycolor, size: mysize, map: mytexture }, ... }'
+        );
+    }
+
+    this.sn = null;
+    this.buffer = null;
+  };
+
+
+  setup(frame, point_step, fields)
+  {
+      if(this.sn===null){
+          // scratch space to decode base64 buffers
+          if(point_step) {
+              this.buffer = new Uint8Array( this.max_pts * point_step );
+          }
+          // turn fields to a map
+          fields = fields || [];
+          this.fields = {};
+          for(var i=0; i<fields.length; i++) {
+              this.fields[fields[i].name] = fields[i];
+          }
+          this.geom = new THREE$1.BufferGeometry();
+
+          this.positions = new THREE$1.BufferAttribute( new Float32Array( this.max_pts * 3), 3, false );
+          this.geom.addAttribute( 'position', this.positions.setDynamic(true) );
+
+          if(!this.colorsrc && this.fields.rgb) {
+              this.colorsrc = 'rgb';
+          }
+          if(this.colorsrc) {
+              var field = this.fields[this.colorsrc];
+              if (field) {
+                  this.colors = new THREE$1.BufferAttribute( new Float32Array( this.max_pts * 3), 3, false );
+                  this.geom.addAttribute( 'color', this.colors.setDynamic(true) );
+                  var offset = field.offset;
+                  this.getColor = [
+                      function(dv,base,le){return dv.getInt8(base+offset,le);},
+                      function(dv,base,le){return dv.getUint8(base+offset,le);},
+                      function(dv,base,le){return dv.getInt16(base+offset,le);},
+                      function(dv,base,le){return dv.getUint16(base+offset,le);},
+                      function(dv,base,le){return dv.getInt32(base+offset,le);},
+                      function(dv,base,le){return dv.getUint32(base+offset,le);},
+                      function(dv,base,le){return dv.getFloat32(base+offset,le);},
+                      function(dv,base,le){return dv.getFloat64(base+offset,le);}
+                  ][field.datatype-1];
+                  this.colormap = this.colormap || function(x){return new THREE$1.Color(x);};
+              } else {
+                  console.warn('unavailable field "' + this.colorsrc + '" for coloring.');
+              }
+          }
+
+          if(!this.material.isMaterial) { // if it is an option, apply defaults and pass it to a PointsMaterial
+              if(this.colors && this.material.vertexColors === undefined) {
+                  this.material.vertexColors = THREE$1.VertexColors;
+              }
+              this.material = new THREE$1.PointsMaterial(this.material);
+          }
+
+          this.object = new THREE$1.Points( this.geom, this.material );
+
+          this.sn = new SceneNode({
+              frameID : frame,
+              tfClient : this.tfClient,
+              object : this.object
+          });
+
+          this.rootObject.add(this.sn);
+      }
+      return (this.messageCount++ % this.messageRatio) === 0;
+  };
+
+  update(n)
+  {
+    this.geom.setDrawRange(0,n);
+
+    this.positions.needsUpdate = true;
+    this.positions.updateRange.count = n * this.positions.itemSize;
+
+    if (this.colors) {
+      this.colors.needsUpdate = true;
+      this.colors.updateRange.count = n * this.colors.itemSize;
+    }
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ */
+
+class LaserScan extends THREE$1.Object3D {
+
+  /**
+   * A LaserScan client that listens to a given topic and displays the points.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to (default '/scan')
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to use for the points.
+   *  * max_pts (optional) - number of points to draw (default: 10000)
+   *  * pointRatio (optional) - point subsampling ratio (default: 1, no subsampling)
+   *  * messageRatio (optional) - message subsampling ratio (default: 1, no subsampling)
+   *  * material (optional) - a material object or an option to construct a PointsMaterial.
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/scan';
+    this.points = new Points$1(options);
+    this.rosTopic = undefined;
+    this.subscribe();
+
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+      ros : this.ros,
+      name : this.topicName,
+      messageType : 'sensor_msgs/LaserScan'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(message){
+    if(!this.points.setup(message.header.frame_id)) {
+        return;
+    }
+    var n = message.ranges.length;
+    var j = 0;
+    for(var i=0;i<n;i+=this.points.pointRatio){
+      var range = message.ranges[i];
+      if(range >= message.range_min && range <= message.range_max){
+          var angle = message.angle_min + i * message.angle_increment;
+          this.points.positions.array[j++] = range * Math.cos(angle);
+          this.points.positions.array[j++] = range * Math.sin(angle);
+          this.points.positions.array[j++] = 0.0;
+      }
+    }
+    this.points.update(j/3);
+  };
+}
+
+/**
+ * @author David V. Lu!! - davidvlu@gmail.com
+ * @author Mathieu Bredif - mathieu.bredif@ign.fr
+ */
+
+/**
+ * Decodes the base64-encoded array 'inbytes' into the array 'outbytes'
+ * until 'inbytes' is exhausted or 'outbytes' is filled.
+ * if 'record_size' is specified, records of length 'record_size' bytes
+ * are copied every other 'pointRatio' records.
+ * returns the number of decoded records
+ */
+function decode64(inbytes, outbytes, record_size, pointRatio) {
+    var x,b=0,l=0,j=0,L=inbytes.length,A=outbytes.length;
+    record_size = record_size || A; // default copies everything (no skipping)
+    pointRatio = pointRatio || 1; // default copies everything (no skipping)
+    var bitskip = (pointRatio-1) * record_size * 8;
+    for(x=0;x<L&&j<A;x++){
+        b=(b<<6)+decode64.e[inbytes.charAt(x)];
+        l+=6;
+        if(l>=8){
+            l-=8;
+            outbytes[j++]=(b>>>l)&0xff;
+            if((j % record_size) === 0) { // skip records
+                // no    optimization: for(var i=0;i<bitskip;x++){l+=6;if(l>=8) {l-=8;i+=8;}}
+                // first optimization: for(;l<bitskip;l+=6){x++;} l=l%8;
+                x += Math.ceil((bitskip - l) / 6);
+                l = l % 8;
+
+                if(l>0){b=decode64.e[inbytes.charAt(x)];}
+            }
+        }
+    }
+    return Math.floor(j/record_size);
+}
+// initialize decoder with static lookup table 'e'
+decode64.S='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+decode64.e={};
+for(var i=0;i<64;i++){decode64.e[decode64.S.charAt(i)]=i;}
+
+
+class PointCloud2 extends THREE$1.Object3D {
+
+  /**
+   * A PointCloud2 client that listens to a given topic and displays the points.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * ros - the ROSLIB.Ros connection handle
+   *  * topic - the marker topic to listen to (default: '/points')
+   *  * tfClient - the TF client handle to use
+   *  * rootObject (optional) - the root object to add this marker to use for the points.
+   *  * max_pts (optional) - number of points to draw (default: 10000)
+   *  * pointRatio (optional) - point subsampling ratio (default: 1, no subsampling)
+   *  * messageRatio (optional) - message subsampling ratio (default: 1, no subsampling)
+   *  * material (optional) - a material object or an option to construct a PointsMaterial.
+   *  * colorsrc (optional) - the field to be used for coloring (default: 'rgb')
+   *  * colormap (optional) - function that turns the colorsrc field value to a color
+   */
+  constructor(options) {
+    super();
+    options = options || {};
+    this.ros = options.ros;
+    this.topicName = options.topic || '/points';
+    this.points = new Points$1(options);
+    this.rosTopic = undefined;
+    this.subscribe();
+  };
+
+
+  unsubscribe(){
+    if(this.rosTopic){
+      this.rosTopic.unsubscribe();
+    }
+  };
+
+  subscribe(){
+    this.unsubscribe();
+
+    // subscribe to the topic
+    this.rosTopic = new ROSLIB.Topic({
+      ros : this.ros,
+      name : this.topicName,
+      messageType : 'sensor_msgs/PointCloud2'
+    });
+    this.rosTopic.subscribe(this.processMessage.bind(this));
+  };
+
+  processMessage(msg){
+    if(!this.points.setup(msg.header.frame_id, msg.point_step, msg.fields)) {
+        return;
+    }
+
+    var n, pointRatio = this.points.pointRatio;
+
+    if (msg.data.buffer) {
+      this.points.buffer = msg.data.buffer;
+      n = msg.height*msg.width / pointRatio;
+    } else {
+      n = decode64(msg.data, this.points.buffer, msg.point_step, pointRatio);
+      pointRatio = 1;
+    }
+
+    var dv = new DataView(this.points.buffer.buffer);
+    var littleEndian = !msg.is_bigendian;
+    var x = this.points.fields.x.offset;
+    var y = this.points.fields.y.offset;
+    var z = this.points.fields.z.offset;
+    var base, color;
+    for(var i = 0; i < n; i++){
+      base = i * pointRatio * msg.point_step;
+      this.points.positions.array[3*i    ] = dv.getFloat32(base+x, littleEndian);
+      this.points.positions.array[3*i + 1] = dv.getFloat32(base+y, littleEndian);
+      this.points.positions.array[3*i + 2] = dv.getFloat32(base+z, littleEndian);
+
+      if(this.points.colors){
+          color = this.points.colormap(this.points.getColor(dv,base,littleEndian));
+          this.points.colors.array[3*i    ] = color.r;
+          this.points.colors.array[3*i + 1] = color.g;
+          this.points.colors.array[3*i + 2] = color.b;
+      }
+    }
+    this.points.update(n);
+  };
+}
+
+/**
+ * @author Jihoon Lee - jihoonlee.in@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class Urdf extends THREE$1.Object3D {
+
+  /**
+   * A URDF can be used to load a ROSLIB.UrdfModel and its associated models into a 3D object.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * urdfModel - the ROSLIB.UrdfModel to load
+   *   * tfClient - the TF client handle to use
+   *   * path (optional) - the base path to the associated Collada models that will be loaded
+   *   * tfPrefix (optional) - the TF prefix to used for multi-robots
+   *   * loader (optional) - the Collada loader to use (e.g., an instance of ROS3D.COLLADA_LOADER)
+   */
+  constructor(options) {
+    options = options || {};
+    var urdfModel = options.urdfModel;
+    var path = options.path || '/';
+    var tfClient = options.tfClient;
+    var tfPrefix = options.tfPrefix || '';
+    var loader = options.loader;
+
+    super();
+
+    // load all models
+    var links = urdfModel.links;
+    for ( var l in links) {
+      var link = links[l];
+      for( var i=0; i<link.visuals.length; i++ ) {
+        var visual = link.visuals[i];
+        if (visual && visual.geometry) {
+          // Save frameID
+          var frameID = tfPrefix + '/' + link.name;
+          // Save color material
+          var colorMaterial = null;
+          if (visual.material && visual.material.color) {
+            var color = visual.material && visual.material.color;
+            colorMaterial = makeColorMaterial(color.r, color.g, color.b, color.a);
+          }
+          if (visual.geometry.type === ROSLIB.URDF_MESH) {
+            var uri = visual.geometry.filename;
+            // strips package://
+            var tmpIndex = uri.indexOf('package://');
+            if (tmpIndex !== -1) {
+              uri = uri.substr(tmpIndex + ('package://').length);
+            }
+            var fileType = uri.substr(-4).toLowerCase();
+
+            // ignore mesh files which are not in Collada or STL format
+            if (fileType === '.dae' || fileType === '.stl') {
+              // create the model
+              var mesh = new MeshResource({
+                path : path,
+                resource : uri,
+                loader : loader,
+                material : colorMaterial
+              });
+
+              // check for a scale
+              if(link.visuals[i].geometry.scale) {
+                mesh.scale.copy(visual.geometry.scale);
+              }
+
+              // create a scene node with the model
+              var sceneNode = new SceneNode({
+                frameID : frameID,
+                  pose : visual.origin,
+                  tfClient : tfClient,
+                  object : mesh
+              });
+              this.add(sceneNode);
+            } else {
+              console.warn('Could not load geometry mesh: '+uri);
+            }
+          } else {
+            if (!colorMaterial) {
+              colorMaterial = makeColorMaterial(0, 0, 0, 1);
+            }
+            var shapeMesh;
+            // Create a shape
+            switch (visual.geometry.type) {
+              case ROSLIB.URDF_BOX:
+                var dimension = visual.geometry.dimension;
+                var cube = new THREE$1.BoxGeometry(dimension.x, dimension.y, dimension.z);
+                shapeMesh = new THREE$1.Mesh(cube, colorMaterial);
+                break;
+              case ROSLIB.URDF_CYLINDER:
+                var radius = visual.geometry.radius;
+                var length = visual.geometry.length;
+                var cylinder = new THREE$1.CylinderGeometry(radius, radius, length, 16, 1, false);
+                shapeMesh = new THREE$1.Mesh(cylinder, colorMaterial);
+                shapeMesh.quaternion.setFromAxisAngle(new THREE$1.Vector3(1, 0, 0), Math.PI * 0.5);
+                break;
+              case ROSLIB.URDF_SPHERE:
+                var sphere = new THREE$1.SphereGeometry(visual.geometry.radius, 16);
+                shapeMesh = new THREE$1.Mesh(sphere, colorMaterial);
+                break;
+            }
+            // Create a scene node with the shape
+            var scene = new SceneNode({
+              frameID: frameID,
+                pose: visual.origin,
+                tfClient: tfClient,
+                object: shapeMesh
+            });
+            this.add(scene);
+          }
+        }
+      }
+    }
+  };
+
+  unsubscribeTf () {
+    this.children.forEach(function(n) {
+      if (typeof n.unsubscribeTf === 'function') { n.unsubscribeTf(); }
+    });
+  };
+}
+
+/**
+ * @author Jihoon Lee - jihoonlee.in@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+class UrdfClient {
+
+  /**
+   * A URDF client can be used to load a URDF and its associated models into a 3D object from the ROS
+   * parameter server.
+   *
+   * Emits the following events:
+   *
+   * * 'change' - emited after the URDF and its meshes have been loaded into the root object
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * ros - the ROSLIB.Ros connection handle
+   *   * param (optional) - the paramter to load the URDF from, like 'robot_description'
+   *   * tfClient - the TF client handle to use
+   *   * path (optional) - the base path to the associated Collada models that will be loaded
+   *   * rootObject (optional) - the root object to add this marker to
+   *   * tfPrefix (optional) - the TF prefix to used for multi-robots
+   *   * loader (optional) - the Collada loader to use (e.g., an instance of ROS3D.COLLADA_LOADER)
+   */
+  constructor(options) {
+    var that = this;
+    options = options || {};
+    var ros = options.ros;
+    this.param = options.param || 'robot_description';
+    this.path = options.path || '/';
+    this.tfClient = options.tfClient;
+    this.rootObject = options.rootObject || new THREE$1.Object3D();
+    this.tfPrefix = options.tfPrefix || '';
+    this.loader = options.loader;
+
+    // get the URDF value from ROS
+    var getParam = new ROSLIB.Param({
+      ros : ros,
+      name : this.param
+    });
+    getParam.get(function(string) {
+      // hand off the XML string to the URDF model
+      var urdfModel = new ROSLIB.UrdfModel({
+        string : string
+      });
+
+      // load all models
+      that.urdf = new Urdf({
+        urdfModel : urdfModel,
+        path : that.path,
+        tfClient : that.tfClient,
+        tfPrefix : that.tfPrefix,
+        loader : that.loader
+      });
+      that.rootObject.add(that.urdf);
+    });
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class Highlighter {
+
+  /**
+   * A mouseover highlighter for 3D objects in the scene.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * mouseHandler - the handler for the mouseover and mouseout events
+   */
+  constructor(options) {
+    options = options || {};
+    this.mouseHandler = options.mouseHandler;
+    this.hoverObjs = {};
+
+    // bind the mouse events
+    this.mouseHandler.addEventListener('mouseover', this.onMouseOver.bind(this));
+    this.mouseHandler.addEventListener('mouseout', this.onMouseOut.bind(this));
+  };
+
+  /**
+   * Add the current target of the mouseover to the hover list.
+   *
+   * @param event - the event that contains the target of the mouseover
+   */
+  onMouseOver(event) {
+    this.hoverObjs[event.currentTarget.uuid] = event.currentTarget;
+  };
+
+  /**
+   * Remove the current target of the mouseover from the hover list.
+   *
+   * @param event - the event that contains the target of the mouseout
+   */
+  onMouseOut(event) {
+    var uuid = event.currentTarget.uuid;
+    if (uuid in this.hoverObjs)
+    {
+      delete this.hoverObjs[uuid];
+    }
+  };
+
+
+  /**
+   * Render the highlights for all objects that are currently highlighted.
+   *
+   * This method should be executed after clearing the renderer and
+   * rendering the regular scene.
+   *
+   * @param scene - the current scene, which should contain the highlighted objects (among others)
+   * @param renderer - the renderer used to render the scene.
+   * @param camera - the scene's camera
+   */
+  renderHighlights(scene, renderer, camera) {
+
+    // Render highlights by making everything but the highlighted
+    // objects invisible...
+    this.makeEverythingInvisible(scene);
+    this.makeHighlightedVisible(scene);
+
+    // Providing a transparent overrideMaterial...
+    var originalOverrideMaterial = scene.overrideMaterial;
+    scene.overrideMaterial = new THREE$1.MeshBasicMaterial({
+        fog : false,
+        opacity : 0.5,
+        transparent : true,
+        depthTest : true,
+        depthWrite : false,
+        polygonOffset : true,
+        polygonOffsetUnits : -1,
+        side : THREE$1.DoubleSide
+    });
+
+    // And then rendering over the regular scene
+    renderer.render(scene, camera);
+
+    // Finally, restore the original overrideMaterial (if any) and
+    // object visibility.
+    scene.overrideMaterial = originalOverrideMaterial;
+    this.restoreVisibility(scene);
+  };
+
+
+  /**
+   * Traverses the given object and makes every object that's a Mesh,
+   * Line or Sprite invisible. Also saves the previous visibility state
+   * so we can restore it later.
+   *
+   * @param scene - the object to traverse
+   */
+  makeEverythingInvisible (scene) {
+    scene.traverse(function(currentObject) {
+      if ( currentObject instanceof THREE$1.Mesh || currentObject instanceof THREE$1.Line
+           || currentObject instanceof THREE$1.Sprite ) {
+        currentObject.previousVisibility = currentObject.visible;
+        currentObject.visible = false;
+      }
+    });
+  };
+
+
+  /**
+   * Make the objects in the scene that are currently highlighted (and
+   * all of their children!) visible.
+   *
+   * @param scene - the object to traverse
+   */
+  makeHighlightedVisible (scene) {
+    var makeVisible = function(currentObject) {
+        if ( currentObject instanceof THREE$1.Mesh || currentObject instanceof THREE$1.Line
+             || currentObject instanceof THREE$1.Sprite ) {
+          currentObject.visible = true;
+        }
+    };
+
+    for (var uuid in this.hoverObjs) {
+      var selectedObject = this.hoverObjs[uuid];
+      // Make each selected object and all of its children visible
+      selectedObject.visible = true;
+      selectedObject.traverse(makeVisible);
+    }
+  };
+
+  /**
+   * Restore the old visibility state that was saved by
+   * makeEverythinginvisible.
+   *
+   * @param scene - the object to traverse
+   */
+  restoreVisibility (scene) {
+    scene.traverse(function(currentObject) {
+      if (currentObject.hasOwnProperty('previousVisibility')) {
+        currentObject.visible = currentObject.previousVisibility;
+      }
+    }.bind(this));
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+class MouseHandler extends THREE$1.EventDispatcher {
+
+  /**
+   * A handler for mouse events within a 3D viewer.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *   * renderer - the main renderer
+   *   * camera - the main camera in the scene
+   *   * rootObject - the root object to check for mouse events
+   *   * fallbackTarget - the fallback target, e.g., the camera controls
+   */
+  constructor(options) {
+    super();
+    this.renderer = options.renderer;
+    this.camera = options.camera;
+    this.rootObject = options.rootObject;
+    this.fallbackTarget = options.fallbackTarget;
+    this.lastTarget = this.fallbackTarget;
+    this.dragging = false;
+
+    // listen to DOM events
+    var eventNames = [ 'contextmenu', 'click', 'dblclick', 'mouseout', 'mousedown', 'mouseup',
+        'mousemove', 'mousewheel', 'DOMMouseScroll', 'touchstart', 'touchend', 'touchcancel',
+        'touchleave', 'touchmove' ];
+    this.listeners = {};
+
+    // add event listeners for the associated mouse events
+    eventNames.forEach(function(eventName) {
+      this.listeners[eventName] = this.processDomEvent.bind(this);
+      this.renderer.domElement.addEventListener(eventName, this.listeners[eventName], false);
+    }, this);
+  };
+
+  /**
+   * Process the particular DOM even that has occurred based on the mouse's position in the scene.
+   *
+   * @param domEvent - the DOM event to process
+   */
+  processDomEvent(domEvent) {
+    // don't deal with the default handler
+    domEvent.preventDefault();
+
+    // compute normalized device coords and 3D mouse ray
+    var target = domEvent.target;
+    var rect = target.getBoundingClientRect();
+    var pos_x, pos_y;
+
+    if(domEvent.type.indexOf('touch') !== -1) {
+      pos_x = 0;
+      pos_y = 0;
+      for(var i=0; i<domEvent.touches.length; ++i) {
+          pos_x += domEvent.touches[i].clientX;
+          pos_y += domEvent.touches[i].clientY;
+      }
+      pos_x /= domEvent.touches.length;
+      pos_y /= domEvent.touches.length;
+    }
+    else {
+  	pos_x = domEvent.clientX;
+  	pos_y = domEvent.clientY;
+    }
+    var left = pos_x - rect.left - target.clientLeft + target.scrollLeft;
+    var top = pos_y - rect.top - target.clientTop + target.scrollTop;
+    var deviceX = left / target.clientWidth * 2 - 1;
+    var deviceY = -top / target.clientHeight * 2 + 1;
+    var vector = new THREE$1.Vector3(deviceX, deviceY, 0.5);
+    vector.unproject(this.camera);
+    // use the THREE raycaster
+    var mouseRaycaster = new THREE$1.Raycaster(this.camera.position.clone(), vector.sub(
+        this.camera.position).normalize());
+    mouseRaycaster.linePrecision = 0.001;
+    var mouseRay = mouseRaycaster.ray;
+
+    // make our 3d mouse event
+    var event3D = {
+      mousePos : new THREE$1.Vector2(deviceX, deviceY),
+      mouseRay : mouseRay,
+      domEvent : domEvent,
+      camera : this.camera,
+      intersection : this.lastIntersection
+    };
+
+    // if the mouse leaves the dom element, stop everything
+    if (domEvent.type === 'mouseout') {
+      if (this.dragging) {
+        this.notify(this.lastTarget, 'mouseup', event3D);
+        this.dragging = false;
+      }
+      this.notify(this.lastTarget, 'mouseout', event3D);
+      this.lastTarget = null;
+      return;
+    }
+
+    // if the touch leaves the dom element, stop everything
+    if (domEvent.type === 'touchleave' || domEvent.type === 'touchend') {
+      if (this.dragging) {
+        this.notify(this.lastTarget, 'mouseup', event3D);
+        this.dragging = false;
+      }
+      this.notify(this.lastTarget, 'touchend', event3D);
+      this.lastTarget = null;
+      return;
+    }
+
+    // while the user is holding the mouse down, stay on the same target
+    if (this.dragging) {
+      this.notify(this.lastTarget, domEvent.type, event3D);
+      // for check for right or left mouse button
+      if ((domEvent.type === 'mouseup' && domEvent.button === 2) || domEvent.type === 'click' || domEvent.type === 'touchend') {
+        this.dragging = false;
+      }
+      return;
+    }
+
+    // in the normal case, we need to check what is under the mouse
+    target = this.lastTarget;
+    var intersections = [];
+    intersections = mouseRaycaster.intersectObject(this.rootObject, true);
+
+    if (intersections.length > 0) {
+      target = intersections[0].object;
+      event3D.intersection = this.lastIntersection = intersections[0];
+    } else {
+      target = this.fallbackTarget;
+    }
+
+    // if the mouse moves from one object to another (or from/to the 'null' object), notify both
+    if (target !== this.lastTarget && domEvent.type.match(/mouse/)) {
+
+      // Event Status. TODO: Make it as enum
+      // 0: Accepted
+      // 1: Failed
+      // 2: Continued
+      var eventStatus = this.notify(target, 'mouseover', event3D);
+      if (eventStatus === 0) {
+        this.notify(this.lastTarget, 'mouseout', event3D);
+      } else if(eventStatus === 1) {
+        // if target was null or no target has caught our event, fall back
+        target = this.fallbackTarget;
+        if (target !== this.lastTarget) {
+          this.notify(target, 'mouseover', event3D);
+          this.notify(this.lastTarget, 'mouseout', event3D);
+        }
+      }
+    }
+
+    // if the finger moves from one object to another (or from/to the 'null' object), notify both
+    if (target !== this.lastTarget && domEvent.type.match(/touch/)) {
+      var toucheventAccepted = this.notify(target, domEvent.type, event3D);
+      if (toucheventAccepted) {
+        this.notify(this.lastTarget, 'touchleave', event3D);
+        this.notify(this.lastTarget, 'touchend', event3D);
+      } else {
+        // if target was null or no target has caught our event, fall back
+        target = this.fallbackTarget;
+        if (target !== this.lastTarget) {
+          this.notify(this.lastTarget, 'touchmove', event3D);
+          this.notify(this.lastTarget, 'touchend', event3D);
+        }
+      }
+    }
+
+    // pass through event
+    this.notify(target, domEvent.type, event3D);
+    if (domEvent.type === 'mousedown' || domEvent.type === 'touchstart' || domEvent.type === 'touchmove') {
+      this.dragging = true;
+    }
+    this.lastTarget = target;
+  };
+
+  /**
+   * Notify the listener of the type of event that occurred.
+   *
+   * @param target - the target of the event
+   * @param type - the type of event that occurred
+   * @param event3D - the 3D mouse even information
+   * @returns if an event was canceled
+   */
+  notify(target, type, event3D) {
+    // ensure the type is set
+    //
+    event3D.type = type;
+
+    // make the event cancelable
+    event3D.cancelBubble = false;
+    event3D.continueBubble = false;
+    event3D.stopPropagation = function() {
+      event3D.cancelBubble = true;
+    };
+
+    // it hit the selectable object but don't highlight
+    event3D.continuePropagation = function () {
+      event3D.continueBubble = true;
+    };
+
+    // walk up graph until event is canceled or root node has been reached
+    event3D.currentTarget = target;
+
+    while (event3D.currentTarget) {
+      // try to fire event on object
+      if (event3D.currentTarget.dispatchEvent
+          && event3D.currentTarget.dispatchEvent instanceof Function) {
+        event3D.currentTarget.dispatchEvent(event3D);
+        if (event3D.cancelBubble) {
+          this.dispatchEvent(event3D);
+          return 0; // Event Accepted
+        }
+        else if(event3D.continueBubble) {
+          return 2; // Event Continued
+        }
+      }
+      // walk up
+      event3D.currentTarget = event3D.currentTarget.parent;
+    }
+
+    return 1; // Event Failed
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ * @author Xueqiao Xu - xueqiaoxu@gmail.com
+ * @author Mr.doob - http://mrdoob.com
+ * @author AlteredQualia - http://alteredqualia.com
+ */
+
+class OrbitControls extends THREE$1.EventDispatcher {
+
+  /**
+   * Behaves like THREE.OrbitControls, but uses right-handed coordinates and z as up vector.
+   *
+   * @constructor
+   * @param scene - the global scene to use
+   * @param camera - the camera to use
+   * @param userZoomSpeed (optional) - the speed for zooming
+   * @param userRotateSpeed (optional) - the speed for rotating
+   * @param autoRotate (optional) - if the orbit should auto rotate
+   * @param autoRotate (optional) - the speed for auto rotating
+   */
+  constructor(options) {
+    super();
+    var that = this;
+    options = options || {};
+    var scene = options.scene;
+    this.camera = options.camera;
+    this.center = new THREE$1.Vector3();
+    this.userZoom = true;
+    this.userZoomSpeed = options.userZoomSpeed || 1.0;
+    this.userRotate = true;
+    this.userRotateSpeed = options.userRotateSpeed || 1.0;
+    this.autoRotate = options.autoRotate;
+    this.autoRotateSpeed = options.autoRotateSpeed || 2.0;
+
+    // In ROS, z is pointing upwards
+    this.camera.up = new THREE$1.Vector3(0, 0, 1);
+
+    // internals
+    var pixelsPerRound = 1800;
+    var touchMoveThreshold = 10;
+    var rotateStart = new THREE$1.Vector2();
+    var rotateEnd = new THREE$1.Vector2();
+    var rotateDelta = new THREE$1.Vector2();
+    var zoomStart = new THREE$1.Vector2();
+    var zoomEnd = new THREE$1.Vector2();
+    var zoomDelta = new THREE$1.Vector2();
+    var moveStartCenter = new THREE$1.Vector3();
+    var moveStartNormal = new THREE$1.Vector3();
+    var moveStartPosition = new THREE$1.Vector3();
+    var moveStartIntersection = new THREE$1.Vector3();
+    var touchStartPosition = new Array(2);
+    var touchMoveVector = new Array(2);
+    this.phiDelta = 0;
+    this.thetaDelta = 0;
+    this.scale = 1;
+    this.lastPosition = new THREE$1.Vector3();
+    // internal states
+    var STATE = {
+      NONE : -1,
+      ROTATE : 0,
+      ZOOM : 1,
+      MOVE : 2
+    };
+    var state = STATE.NONE;
+
+    // add the axes for the main coordinate frame
+    this.axes = new Axes({
+      shaftRadius : 0.025,
+      headRadius : 0.07,
+      headLength : 0.2
+    });
+    // initially not visible
+    scene.add(this.axes);
+    this.axes.traverse(function(obj) {
+      obj.visible = false;
+    });
+
+    /**
+     * Handle the mousedown 3D event.
+     *
+     * @param event3D - the 3D event to handle
+     */
+    function onMouseDown(event3D) {
+      var event = event3D.domEvent;
+      event.preventDefault();
+
+      switch (event.button) {
+        case 0:
+          state = STATE.ROTATE;
+          rotateStart.set(event.clientX, event.clientY);
+          break;
+        case 1:
+          state = STATE.MOVE;
+
+          moveStartNormal = new THREE$1.Vector3(0, 0, 1);
+          var rMat = new THREE$1.Matrix4().extractRotation(this.camera.matrix);
+          moveStartNormal.applyMatrix4(rMat);
+
+          moveStartCenter = that.center.clone();
+          moveStartPosition = that.camera.position.clone();
+          moveStartIntersection = intersectViewPlane(event3D.mouseRay,
+                                                     moveStartCenter,
+                                                     moveStartNormal);
+          break;
+        case 2:
+          state = STATE.ZOOM;
+          zoomStart.set(event.clientX, event.clientY);
+          break;
+      }
+
+      this.showAxes();
+    }
+
+    /**
+     * Handle the mousemove 3D event.
+     *
+     * @param event3D - the 3D event to handle
+     */
+    function onMouseMove(event3D) {
+      var event = event3D.domEvent;
+      if (state === STATE.ROTATE) {
+
+        rotateEnd.set(event.clientX, event.clientY);
+        rotateDelta.subVectors(rotateEnd, rotateStart);
+
+        that.rotateLeft(2 * Math.PI * rotateDelta.x / pixelsPerRound * that.userRotateSpeed);
+        that.rotateUp(2 * Math.PI * rotateDelta.y / pixelsPerRound * that.userRotateSpeed);
+
+        rotateStart.copy(rotateEnd);
+        this.showAxes();
+      } else if (state === STATE.ZOOM) {
+        zoomEnd.set(event.clientX, event.clientY);
+        zoomDelta.subVectors(zoomEnd, zoomStart);
+
+        if (zoomDelta.y > 0) {
+          that.zoomIn();
+        } else {
+          that.zoomOut();
+        }
+
+        zoomStart.copy(zoomEnd);
+        this.showAxes();
+
+      } else if (state === STATE.MOVE) {
+        var intersection = intersectViewPlane(event3D.mouseRay, that.center, moveStartNormal);
+
+        if (!intersection) {
+          return;
+        }
+
+        var delta = new THREE$1.Vector3().subVectors(moveStartIntersection.clone(), intersection
+            .clone());
+
+        that.center.addVectors(moveStartCenter.clone(), delta.clone());
+        that.camera.position.addVectors(moveStartPosition.clone(), delta.clone());
+        that.update();
+        that.camera.updateMatrixWorld();
+        this.showAxes();
+      }
+    }
+
+    /**
+     * Used to track the movement during camera movement.
+     *
+     * @param mouseRay - the mouse ray to intersect with
+     * @param planeOrigin - the origin of the plane
+     * @param planeNormal - the normal of the plane
+     * @returns the intersection
+     */
+    function intersectViewPlane(mouseRay, planeOrigin, planeNormal) {
+
+      var vector = new THREE$1.Vector3();
+      var intersection = new THREE$1.Vector3();
+
+      vector.subVectors(planeOrigin, mouseRay.origin);
+      var dot = mouseRay.direction.dot(planeNormal);
+
+      // bail if ray and plane are parallel
+      if (Math.abs(dot) < mouseRay.precision) {
+        return null;
+      }
+
+      // calc distance to plane
+      var scalar = planeNormal.dot(vector) / dot;
+
+      intersection = mouseRay.direction.clone().multiplyScalar(scalar);
+      return intersection;
+    }
+
+    /**
+     * Handle the mouseup 3D event.
+     *
+     * @param event3D - the 3D event to handle
+     */
+    function onMouseUp(event3D) {
+      if (!that.userRotate) {
+        return;
+      }
+
+      state = STATE.NONE;
+    }
+
+    /**
+     * Handle the mousewheel 3D event.
+     *
+     * @param event3D - the 3D event to handle
+     */
+    function onMouseWheel(event3D) {
+      if (!that.userZoom) {
+        return;
+      }
+
+      var event = event3D.domEvent;
+      // wheelDelta --> Chrome, detail --> Firefox
+      var delta;
+      if (typeof (event.wheelDelta) !== 'undefined') {
+        delta = event.wheelDelta;
+      } else {
+        delta = -event.detail;
+      }
+      if (delta > 0) {
+        that.zoomIn();
+      } else {
+        that.zoomOut();
+      }
+
+      this.showAxes();
+    }
+
+    /**
+     * Handle the touchdown 3D event.
+     *
+     * @param event3D - the 3D event to handle
+     */
+    function onTouchDown(event3D) {
+      var event = event3D.domEvent;
+      switch (event.touches.length) {
+        case 1:
+          state = STATE.ROTATE;
+          rotateStart.set(event.touches[0].pageX - window.scrollX,
+                          event.touches[0].pageY - window.scrollY);
+          break;
+        case 2:
+          state = STATE.NONE;
+          /* ready for move */
+          moveStartNormal = new THREE$1.Vector3(0, 0, 1);
+          var rMat = new THREE$1.Matrix4().extractRotation(this.camera.matrix);
+          moveStartNormal.applyMatrix4(rMat);
+          moveStartCenter = that.center.clone();
+          moveStartPosition = that.camera.position.clone();
+          moveStartIntersection = intersectViewPlane(event3D.mouseRay,
+                                                     moveStartCenter,
+                                                     moveStartNormal);
+          touchStartPosition[0] = new THREE$1.Vector2(event.touches[0].pageX,
+                                                    event.touches[0].pageY);
+          touchStartPosition[1] = new THREE$1.Vector2(event.touches[1].pageX,
+                                                    event.touches[1].pageY);
+          touchMoveVector[0] = new THREE$1.Vector2(0, 0);
+          touchMoveVector[1] = new THREE$1.Vector2(0, 0);
+          break;
+      }
+
+      this.showAxes();
+
+      event.preventDefault();
+    }
+
+    /**
+     * Handle the touchmove 3D event.
+     *
+     * @param event3D - the 3D event to handle
+     */
+    function onTouchMove(event3D) {
+      var event = event3D.domEvent;
+      if (state === STATE.ROTATE) {
+
+        rotateEnd.set(event.touches[0].pageX - window.scrollX, event.touches[0].pageY - window.scrollY);
+        rotateDelta.subVectors(rotateEnd, rotateStart);
+
+        that.rotateLeft(2 * Math.PI * rotateDelta.x / pixelsPerRound * that.userRotateSpeed);
+        that.rotateUp(2 * Math.PI * rotateDelta.y / pixelsPerRound * that.userRotateSpeed);
+
+        rotateStart.copy(rotateEnd);
+        this.showAxes();
+      } else {
+        touchMoveVector[0].set(touchStartPosition[0].x - event.touches[0].pageX,
+                               touchStartPosition[0].y - event.touches[0].pageY);
+        touchMoveVector[1].set(touchStartPosition[1].x - event.touches[1].pageX,
+                               touchStartPosition[1].y - event.touches[1].pageY);
+        if (touchMoveVector[0].lengthSq() > touchMoveThreshold &&
+            touchMoveVector[1].lengthSq() > touchMoveThreshold) {
+          touchStartPosition[0].set(event.touches[0].pageX,
+                                    event.touches[0].pageY);
+          touchStartPosition[1].set(event.touches[1].pageX,
+                                    event.touches[1].pageY);
+          if (touchMoveVector[0].dot(touchMoveVector[1]) > 0 &&
+              state !== STATE.ZOOM) {
+            state = STATE.MOVE;
+          } else if (touchMoveVector[0].dot(touchMoveVector[1]) < 0 &&
+                     state !== STATE.MOVE) {
+            state = STATE.ZOOM;
+          }
+          if (state === STATE.ZOOM) {
+            var tmpVector = new THREE$1.Vector2();
+            tmpVector.subVectors(touchStartPosition[0],
+                                 touchStartPosition[1]);
+            if (touchMoveVector[0].dot(tmpVector) < 0 &&
+                touchMoveVector[1].dot(tmpVector) > 0) {
+              that.zoomOut();
+            } else if (touchMoveVector[0].dot(tmpVector) > 0 &&
+                       touchMoveVector[1].dot(tmpVector) < 0) {
+              that.zoomIn();
+            }
+          }
+        }
+        if (state === STATE.MOVE) {
+          var intersection = intersectViewPlane(event3D.mouseRay,
+                                                that.center,
+                                                moveStartNormal);
+          if (!intersection) {
+            return;
+          }
+          var delta = new THREE$1.Vector3().subVectors(moveStartIntersection.clone(),
+                                                     intersection.clone());
+          that.center.addVectors(moveStartCenter.clone(), delta.clone());
+          that.camera.position.addVectors(moveStartPosition.clone(), delta.clone());
+          that.update();
+          that.camera.updateMatrixWorld();
+        }
+
+        this.showAxes();
+
+        event.preventDefault();
+      }
+    }
+
+    function onTouchEnd(event3D) {
+      var event = event3D.domEvent;
+      if (event.touches.length === 1 &&
+          state !== STATE.ROTATE) {
+        state = STATE.ROTATE;
+        rotateStart.set(event.touches[0].pageX - window.scrollX,
+                        event.touches[0].pageY - window.scrollY);
+      }
+      else {
+          state = STATE.NONE;
+      }
+    }
+
+    // add event listeners
+    this.addEventListener('mousedown', onMouseDown);
+    this.addEventListener('mouseup', onMouseUp);
+    this.addEventListener('mousemove', onMouseMove);
+    this.addEventListener('touchstart', onTouchDown);
+    this.addEventListener('touchmove', onTouchMove);
+    this.addEventListener('touchend', onTouchEnd);
+    // Chrome/Firefox have different events here
+    this.addEventListener('mousewheel', onMouseWheel);
+    this.addEventListener('DOMMouseScroll', onMouseWheel);
+  };
+
+  /**
+   * Display the main axes for 1 second.
+   */
+  showAxes() {
+    var that = this;
+
+    this.axes.traverse(function(obj) {
+      obj.visible = true;
+    });
+    if (this.hideTimeout) {
+      clearTimeout(this.hideTimeout);
+    }
+    this.hideTimeout = setTimeout(function() {
+      that.axes.traverse(function(obj) {
+        obj.visible = false;
+      });
+      that.hideTimeout = false;
+    }, 1000);
+  };
+
+  /**
+   * Rotate the camera to the left by the given angle.
+   *
+   * @param angle (optional) - the angle to rotate by
+   */
+  rotateLeft(angle) {
+    if (angle === undefined) {
+      angle = 2 * Math.PI / 60 / 60 * this.autoRotateSpeed;
+    }
+    this.thetaDelta -= angle;
+  };
+
+  /**
+   * Rotate the camera to the right by the given angle.
+   *
+   * @param angle (optional) - the angle to rotate by
+   */
+  rotateRight(angle) {
+    if (angle === undefined) {
+      angle = 2 * Math.PI / 60 / 60 * this.autoRotateSpeed;
+    }
+    this.thetaDelta += angle;
+  };
+
+  /**
+   * Rotate the camera up by the given angle.
+   *
+   * @param angle (optional) - the angle to rotate by
+   */
+  rotateUp(angle) {
+    if (angle === undefined) {
+      angle = 2 * Math.PI / 60 / 60 * this.autoRotateSpeed;
+    }
+    this.phiDelta -= angle;
+  };
+
+  /**
+   * Rotate the camera down by the given angle.
+   *
+   * @param angle (optional) - the angle to rotate by
+   */
+  rotateDown(angle) {
+    if (angle === undefined) {
+      angle = 2 * Math.PI / 60 / 60 * this.autoRotateSpeed;
+    }
+    this.phiDelta += angle;
+  };
+
+  /**
+   * Zoom in by the given scale.
+   *
+   * @param zoomScale (optional) - the scale to zoom in by
+   */
+  zoomIn(zoomScale) {
+    if (zoomScale === undefined) {
+      zoomScale = Math.pow(0.95, this.userZoomSpeed);
+    }
+    this.scale /= zoomScale;
+  };
+
+  /**
+   * Zoom out by the given scale.
+   *
+   * @param zoomScale (optional) - the scale to zoom in by
+   */
+  zoomOut(zoomScale) {
+    if (zoomScale === undefined) {
+      zoomScale = Math.pow(0.95, this.userZoomSpeed);
+    }
+    this.scale *= zoomScale;
+  };
+
+  /**
+   * Update the camera to the current settings.
+   */
+  update() {
+    // x->y, y->z, z->x
+    var position = this.camera.position;
+    var offset = position.clone().sub(this.center);
+
+    // angle from z-axis around y-axis
+    var theta = Math.atan2(offset.y, offset.x);
+
+    // angle from y-axis
+    var phi = Math.atan2(Math.sqrt(offset.y * offset.y + offset.x * offset.x), offset.z);
+
+    if (this.autoRotate) {
+      this.rotateLeft(2 * Math.PI / 60 / 60 * this.autoRotateSpeed);
+    }
+
+    theta += this.thetaDelta;
+    phi += this.phiDelta;
+
+    // restrict phi to be between EPS and PI-EPS
+    var eps = 0.000001;
+    phi = Math.max(eps, Math.min(Math.PI - eps, phi));
+
+    var radius = offset.length();
+    offset.set(
+      radius * Math.sin(phi) * Math.cos(theta),
+      radius * Math.sin(phi) * Math.sin(theta),
+      radius * Math.cos(phi)
+    );
+    offset.multiplyScalar(this.scale);
+
+    position.copy(this.center).add(offset);
+
+    this.camera.lookAt(this.center);
+
+    radius = offset.length();
+    this.axes.position.copy(this.center);
+    this.axes.scale.set(radius * 0.05, radius * 0.05, radius * 0.05);
+    this.axes.updateMatrixWorld(true);
+
+    this.thetaDelta = 0;
+    this.phiDelta = 0;
+    this.scale = 1;
+
+    if (this.lastPosition.distanceTo(this.camera.position) > 0) {
+      this.dispatchEvent({
+        type : 'change'
+      });
+      this.lastPosition.copy(this.camera.position);
+    }
+  };
+}
+
+/**
+ * @author David Gossow - dgossow@willowgarage.com
+ * @author Russell Toris - rctoris@wpi.edu
+ * @author Jihoon Lee - jihoonlee.in@gmail.com
+ */
+
+class Viewer {
+
+  /**
+   * A Viewer can be used to render an interactive 3D scene to a HTML5 canvas.
+   *
+   * @constructor
+   * @param options - object with following keys:
+   *
+   *  * divID - the ID of the div to place the viewer in
+   *  * width - the initial width, in pixels, of the canvas
+   *  * height - the initial height, in pixels, of the canvas
+   *  * background (optional) - the color to render the background, like '#efefef'
+   *  * alpha (optional) - the alpha of the background
+   *  * antialias (optional) - if antialiasing should be used
+   *  * intensity (optional) - the lighting intensity setting to use
+   *  * cameraPosition (optional) - the starting position of the camera
+   */
+  constructor(options) {
+    options = options || {};
+    var divID = options.divID;
+    var width = options.width;
+    var height = options.height;
+    var background = options.background || '#111111';
+    var antialias = options.antialias;
+    var intensity = options.intensity || 0.66;
+    var near = options.near || 0.01;
+    var far = options.far || 1000;
+    var alpha = options.alpha || 1.0;
+    var cameraPosition = options.cameraPose || {
+      x : 3,
+      y : 3,
+      z : 3
+    };
+    var cameraZoomSpeed = options.cameraZoomSpeed || 0.5;
+
+    // create the canvas to render to
+    this.renderer = new THREE$1.WebGLRenderer({
+      antialias : antialias,
+      alpha: true
+    });
+    this.renderer.setClearColor(parseInt(background.replace('#', '0x'), 16), alpha);
+    this.renderer.sortObjects = false;
+    this.renderer.setSize(width, height);
+    this.renderer.shadowMap.enabled = false;
+    this.renderer.autoClear = false;
+
+    // create the global scene
+    this.scene = new THREE$1.Scene();
+
+    // create the global camera
+    this.camera = new THREE$1.PerspectiveCamera(40, width / height, near, far);
+    this.camera.position.x = cameraPosition.x;
+    this.camera.position.y = cameraPosition.y;
+    this.camera.position.z = cameraPosition.z;
+    // add controls to the camera
+    this.cameraControls = new OrbitControls({
+      scene : this.scene,
+      camera : this.camera
+    });
+    this.cameraControls.userZoomSpeed = cameraZoomSpeed;
+
+    // lights
+    this.scene.add(new THREE$1.AmbientLight(0x555555));
+    this.directionalLight = new THREE$1.DirectionalLight(0xffffff, intensity);
+    this.scene.add(this.directionalLight);
+
+    // propagates mouse events to three.js objects
+    this.selectableObjects = new THREE$1.Object3D();
+    this.scene.add(this.selectableObjects);
+    var mouseHandler = new MouseHandler({
+      renderer : this.renderer,
+      camera : this.camera,
+      rootObject : this.selectableObjects,
+      fallbackTarget : this.cameraControls
+    });
+
+    // highlights the receiver of mouse events
+    this.highlighter = new Highlighter({
+      mouseHandler : mouseHandler
+    });
+
+    this.stopped = true;
+    this.animationRequestId = undefined;
+
+    // add the renderer to the page
+    document.getElementById(divID).appendChild(this.renderer.domElement);
+
+    // begin the render loop
+    this.start();
+  };
+
+  /**
+   *  Start the render loop
+   */
+  start(){
+    this.stopped = false;
+    this.draw();
+  };
+
+  /**
+   * Renders the associated scene to the viewer.
+   */
+  draw(){
+    if(this.stopped){
+      // Do nothing if stopped
+      return;
+    }
+
+    // update the controls
+    this.cameraControls.update();
+
+    // put light to the top-left of the camera
+    // BUG: position is a read-only property of DirectionalLight,
+    // attempting to assign to it either does nothing or throws an error.
+    //this.directionalLight.position = this.camera.localToWorld(new THREE.Vector3(-1, 1, 0));
+    this.directionalLight.position.normalize();
+
+    // set the scene
+    this.renderer.clear(true, true, true);
+    this.renderer.render(this.scene, this.camera);
+    this.highlighter.renderHighlights(this.scene, this.renderer, this.camera);
+
+    // draw the frame
+    this.animationRequestId = requestAnimationFrame(this.draw.bind(this));
+  };
+
+  /**
+   *  Stop the render loop
+   */
+  stop(){
+    if(!this.stopped){
+      // Stop animation render loop
+      cancelAnimationFrame(this.animationRequestId);
+    }
+    this.stopped = true;
+  };
+
+  /**
+   * Add the given THREE Object3D to the global scene in the viewer.
+   *
+   * @param object - the THREE Object3D to add
+   * @param selectable (optional) - if the object should be added to the selectable list
+   */
+  addObject(object, selectable) {
+    if (selectable) {
+      this.selectableObjects.add(object);
+    } else {
+      this.scene.add(object);
+    }
+  };
+
+  /**
+   * Resize 3D viewer
+   *
+   * @param width - new width value
+   * @param height - new height value
+   */
+  resize(width, height) {
+    this.camera.aspect = width / height;
+    this.camera.updateProjectionMatrix();
+    this.renderer.setSize(width, height);
+  };
+}
+
+exports.REVISION = REVISION$1;
+exports.MARKER_ARROW = MARKER_ARROW;
+exports.MARKER_CUBE = MARKER_CUBE;
+exports.MARKER_SPHERE = MARKER_SPHERE;
+exports.MARKER_CYLINDER = MARKER_CYLINDER;
+exports.MARKER_LINE_STRIP = MARKER_LINE_STRIP;
+exports.MARKER_LINE_LIST = MARKER_LINE_LIST;
+exports.MARKER_CUBE_LIST = MARKER_CUBE_LIST;
+exports.MARKER_SPHERE_LIST = MARKER_SPHERE_LIST;
+exports.MARKER_POINTS = MARKER_POINTS;
+exports.MARKER_TEXT_VIEW_FACING = MARKER_TEXT_VIEW_FACING;
+exports.MARKER_MESH_RESOURCE = MARKER_MESH_RESOURCE;
+exports.MARKER_TRIANGLE_LIST = MARKER_TRIANGLE_LIST;
+exports.INTERACTIVE_MARKER_KEEP_ALIVE = INTERACTIVE_MARKER_KEEP_ALIVE;
+exports.INTERACTIVE_MARKER_POSE_UPDATE = INTERACTIVE_MARKER_POSE_UPDATE;
+exports.INTERACTIVE_MARKER_MENU_SELECT = INTERACTIVE_MARKER_MENU_SELECT;
+exports.INTERACTIVE_MARKER_BUTTON_CLICK = INTERACTIVE_MARKER_BUTTON_CLICK;
+exports.INTERACTIVE_MARKER_MOUSE_DOWN = INTERACTIVE_MARKER_MOUSE_DOWN;
+exports.INTERACTIVE_MARKER_MOUSE_UP = INTERACTIVE_MARKER_MOUSE_UP;
+exports.INTERACTIVE_MARKER_NONE = INTERACTIVE_MARKER_NONE;
+exports.INTERACTIVE_MARKER_MENU = INTERACTIVE_MARKER_MENU;
+exports.INTERACTIVE_MARKER_BUTTON = INTERACTIVE_MARKER_BUTTON;
+exports.INTERACTIVE_MARKER_MOVE_AXIS = INTERACTIVE_MARKER_MOVE_AXIS;
+exports.INTERACTIVE_MARKER_MOVE_PLANE = INTERACTIVE_MARKER_MOVE_PLANE;
+exports.INTERACTIVE_MARKER_ROTATE_AXIS = INTERACTIVE_MARKER_ROTATE_AXIS;
+exports.INTERACTIVE_MARKER_MOVE_ROTATE = INTERACTIVE_MARKER_MOVE_ROTATE;
+exports.INTERACTIVE_MARKER_INHERIT = INTERACTIVE_MARKER_INHERIT;
+exports.INTERACTIVE_MARKER_FIXED = INTERACTIVE_MARKER_FIXED;
+exports.INTERACTIVE_MARKER_VIEW_FACING = INTERACTIVE_MARKER_VIEW_FACING;
+exports.makeColorMaterial = makeColorMaterial;
+exports.intersectPlane = intersectPlane;
+exports.findClosestPoint = findClosestPoint;
+exports.closestAxisPoint = closestAxisPoint;
+exports.DepthCloud = DepthCloud;
+exports.InteractiveMarker = InteractiveMarker;
+exports.InteractiveMarkerClient = InteractiveMarkerClient;
+exports.InteractiveMarkerControl = InteractiveMarkerControl;
+exports.InteractiveMarkerHandle = InteractiveMarkerHandle;
+exports.InteractiveMarkerMenu = InteractiveMarkerMenu;
+exports.Marker = Marker;
+exports.MarkerArrayClient = MarkerArrayClient;
+exports.MarkerClient = MarkerClient;
+exports.Arrow = Arrow;
+exports.Arrow2 = Arrow2;
+exports.Axes = Axes;
+exports.Grid = Grid;
+exports.MeshResource = MeshResource;
+exports.TriangleList = TriangleList;
+exports.OccupancyGrid = OccupancyGrid;
+exports.OccupancyGridClient = OccupancyGridClient;
+exports.Odometry = Odometry;
+exports.Path = Path$1;
+exports.Point = Point;
+exports.Polygon = Polygon;
+exports.Pose = Pose;
+exports.PoseArray = PoseArray;
+exports.PoseWithCovariance = PoseWithCovariance;
+exports.LaserScan = LaserScan;
+exports.Points = Points$1;
+exports.PointCloud2 = PointCloud2;
+exports.Urdf = Urdf;
+exports.UrdfClient = UrdfClient;
+exports.Highlighter = Highlighter;
+exports.MouseHandler = MouseHandler;
+exports.OrbitControls = OrbitControls;
+exports.SceneNode = SceneNode;
+exports.Viewer = Viewer;
+
+return exports;
+
+}({},ROSLIB));
diff --git a/clever/www/js/roslib.js b/clever/www/js/roslib.js
new file mode 100644
index 00000000..2193da84
--- /dev/null
+++ b/clever/www/js/roslib.js
@@ -0,0 +1,3693 @@
+(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+/*!
+ * EventEmitter2
+ * https://github.com/hij1nx/EventEmitter2
+ *
+ * Copyright (c) 2013 hij1nx
+ * Licensed under the MIT license.
+ */
+;!function(undefined) {
+
+  var isArray = Array.isArray ? Array.isArray : function _isArray(obj) {
+    return Object.prototype.toString.call(obj) === "[object Array]";
+  };
+  var defaultMaxListeners = 10;
+
+  function init() {
+    this._events = {};
+    if (this._conf) {
+      configure.call(this, this._conf);
+    }
+  }
+
+  function configure(conf) {
+    if (conf) {
+      this._conf = conf;
+
+      conf.delimiter && (this.delimiter = conf.delimiter);
+      this._events.maxListeners = conf.maxListeners !== undefined ? conf.maxListeners : defaultMaxListeners;
+      conf.wildcard && (this.wildcard = conf.wildcard);
+      conf.newListener && (this.newListener = conf.newListener);
+      conf.verboseMemoryLeak && (this.verboseMemoryLeak = conf.verboseMemoryLeak);
+
+      if (this.wildcard) {
+        this.listenerTree = {};
+      }
+    } else {
+      this._events.maxListeners = defaultMaxListeners;
+    }
+  }
+
+  function logPossibleMemoryLeak(count, eventName) {
+    var errorMsg = '(node) warning: possible EventEmitter memory ' +
+        'leak detected. %d listeners added. ' +
+        'Use emitter.setMaxListeners() to increase limit.';
+
+    if(this.verboseMemoryLeak){
+      errorMsg += ' Event name: %s.';
+      console.error(errorMsg, count, eventName);
+    } else {
+      console.error(errorMsg, count);
+    }
+
+    if (console.trace){
+      console.trace();
+    }
+  }
+
+  function EventEmitter(conf) {
+    this._events = {};
+    this.newListener = false;
+    this.verboseMemoryLeak = false;
+    configure.call(this, conf);
+  }
+  EventEmitter.EventEmitter2 = EventEmitter; // backwards compatibility for exporting EventEmitter property
+
+  //
+  // Attention, function return type now is array, always !
+  // It has zero elements if no any matches found and one or more
+  // elements (leafs) if there are matches
+  //
+  function searchListenerTree(handlers, type, tree, i) {
+    if (!tree) {
+      return [];
+    }
+    var listeners=[], leaf, len, branch, xTree, xxTree, isolatedBranch, endReached,
+        typeLength = type.length, currentType = type[i], nextType = type[i+1];
+    if (i === typeLength && tree._listeners) {
+      //
+      // If at the end of the event(s) list and the tree has listeners
+      // invoke those listeners.
+      //
+      if (typeof tree._listeners === 'function') {
+        handlers && handlers.push(tree._listeners);
+        return [tree];
+      } else {
+        for (leaf = 0, len = tree._listeners.length; leaf < len; leaf++) {
+          handlers && handlers.push(tree._listeners[leaf]);
+        }
+        return [tree];
+      }
+    }
+
+    if ((currentType === '*' || currentType === '**') || tree[currentType]) {
+      //
+      // If the event emitted is '*' at this part
+      // or there is a concrete match at this patch
+      //
+      if (currentType === '*') {
+        for (branch in tree) {
+          if (branch !== '_listeners' && tree.hasOwnProperty(branch)) {
+            listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i+1));
+          }
+        }
+        return listeners;
+      } else if(currentType === '**') {
+        endReached = (i+1 === typeLength || (i+2 === typeLength && nextType === '*'));
+        if(endReached && tree._listeners) {
+          // The next element has a _listeners, add it to the handlers.
+          listeners = listeners.concat(searchListenerTree(handlers, type, tree, typeLength));
+        }
+
+        for (branch in tree) {
+          if (branch !== '_listeners' && tree.hasOwnProperty(branch)) {
+            if(branch === '*' || branch === '**') {
+              if(tree[branch]._listeners && !endReached) {
+                listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], typeLength));
+              }
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i));
+            } else if(branch === nextType) {
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i+2));
+            } else {
+              // No match on this one, shift into the tree but not in the type array.
+              listeners = listeners.concat(searchListenerTree(handlers, type, tree[branch], i));
+            }
+          }
+        }
+        return listeners;
+      }
+
+      listeners = listeners.concat(searchListenerTree(handlers, type, tree[currentType], i+1));
+    }
+
+    xTree = tree['*'];
+    if (xTree) {
+      //
+      // If the listener tree will allow any match for this part,
+      // then recursively explore all branches of the tree
+      //
+      searchListenerTree(handlers, type, xTree, i+1);
+    }
+
+    xxTree = tree['**'];
+    if(xxTree) {
+      if(i < typeLength) {
+        if(xxTree._listeners) {
+          // If we have a listener on a '**', it will catch all, so add its handler.
+          searchListenerTree(handlers, type, xxTree, typeLength);
+        }
+
+        // Build arrays of matching next branches and others.
+        for(branch in xxTree) {
+          if(branch !== '_listeners' && xxTree.hasOwnProperty(branch)) {
+            if(branch === nextType) {
+              // We know the next element will match, so jump twice.
+              searchListenerTree(handlers, type, xxTree[branch], i+2);
+            } else if(branch === currentType) {
+              // Current node matches, move into the tree.
+              searchListenerTree(handlers, type, xxTree[branch], i+1);
+            } else {
+              isolatedBranch = {};
+              isolatedBranch[branch] = xxTree[branch];
+              searchListenerTree(handlers, type, { '**': isolatedBranch }, i+1);
+            }
+          }
+        }
+      } else if(xxTree._listeners) {
+        // We have reached the end and still on a '**'
+        searchListenerTree(handlers, type, xxTree, typeLength);
+      } else if(xxTree['*'] && xxTree['*']._listeners) {
+        searchListenerTree(handlers, type, xxTree['*'], typeLength);
+      }
+    }
+
+    return listeners;
+  }
+
+  function growListenerTree(type, listener) {
+
+    type = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+
+    //
+    // Looks for two consecutive '**', if so, don't add the event at all.
+    //
+    for(var i = 0, len = type.length; i+1 < len; i++) {
+      if(type[i] === '**' && type[i+1] === '**') {
+        return;
+      }
+    }
+
+    var tree = this.listenerTree;
+    var name = type.shift();
+
+    while (name !== undefined) {
+
+      if (!tree[name]) {
+        tree[name] = {};
+      }
+
+      tree = tree[name];
+
+      if (type.length === 0) {
+
+        if (!tree._listeners) {
+          tree._listeners = listener;
+        }
+        else {
+          if (typeof tree._listeners === 'function') {
+            tree._listeners = [tree._listeners];
+          }
+
+          tree._listeners.push(listener);
+
+          if (
+            !tree._listeners.warned &&
+            this._events.maxListeners > 0 &&
+            tree._listeners.length > this._events.maxListeners
+          ) {
+            tree._listeners.warned = true;
+            logPossibleMemoryLeak.call(this, tree._listeners.length, name);
+          }
+        }
+        return true;
+      }
+      name = type.shift();
+    }
+    return true;
+  }
+
+  // By default EventEmitters will print a warning if more than
+  // 10 listeners are added to it. This is a useful default which
+  // helps finding memory leaks.
+  //
+  // Obviously not all Emitters should be limited to 10. This function allows
+  // that to be increased. Set to zero for unlimited.
+
+  EventEmitter.prototype.delimiter = '.';
+
+  EventEmitter.prototype.setMaxListeners = function(n) {
+    if (n !== undefined) {
+      this._events || init.call(this);
+      this._events.maxListeners = n;
+      if (!this._conf) this._conf = {};
+      this._conf.maxListeners = n;
+    }
+  };
+
+  EventEmitter.prototype.event = '';
+
+  EventEmitter.prototype.once = function(event, fn) {
+    this.many(event, 1, fn);
+    return this;
+  };
+
+  EventEmitter.prototype.many = function(event, ttl, fn) {
+    var self = this;
+
+    if (typeof fn !== 'function') {
+      throw new Error('many only accepts instances of Function');
+    }
+
+    function listener() {
+      if (--ttl === 0) {
+        self.off(event, listener);
+      }
+      fn.apply(this, arguments);
+    }
+
+    listener._origin = fn;
+
+    this.on(event, listener);
+
+    return self;
+  };
+
+  EventEmitter.prototype.emit = function() {
+
+    this._events || init.call(this);
+
+    var type = arguments[0];
+
+    if (type === 'newListener' && !this.newListener) {
+      if (!this._events.newListener) {
+        return false;
+      }
+    }
+
+    var al = arguments.length;
+    var args,l,i,j;
+    var handler;
+
+    if (this._all && this._all.length) {
+      handler = this._all.slice();
+      if (al > 3) {
+        args = new Array(al);
+        for (j = 0; j < al; j++) args[j] = arguments[j];
+      }
+
+      for (i = 0, l = handler.length; i < l; i++) {
+        this.event = type;
+        switch (al) {
+        case 1:
+          handler[i].call(this, type);
+          break;
+        case 2:
+          handler[i].call(this, type, arguments[1]);
+          break;
+        case 3:
+          handler[i].call(this, type, arguments[1], arguments[2]);
+          break;
+        default:
+          handler[i].apply(this, args);
+        }
+      }
+    }
+
+    if (this.wildcard) {
+      handler = [];
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      searchListenerTree.call(this, handler, ns, this.listenerTree, 0);
+    } else {
+      handler = this._events[type];
+      if (typeof handler === 'function') {
+        this.event = type;
+        switch (al) {
+        case 1:
+          handler.call(this);
+          break;
+        case 2:
+          handler.call(this, arguments[1]);
+          break;
+        case 3:
+          handler.call(this, arguments[1], arguments[2]);
+          break;
+        default:
+          args = new Array(al - 1);
+          for (j = 1; j < al; j++) args[j - 1] = arguments[j];
+          handler.apply(this, args);
+        }
+        return true;
+      } else if (handler) {
+        // need to make copy of handlers because list can change in the middle
+        // of emit call
+        handler = handler.slice();
+      }
+    }
+
+    if (handler && handler.length) {
+      if (al > 3) {
+        args = new Array(al - 1);
+        for (j = 1; j < al; j++) args[j - 1] = arguments[j];
+      }
+      for (i = 0, l = handler.length; i < l; i++) {
+        this.event = type;
+        switch (al) {
+        case 1:
+          handler[i].call(this);
+          break;
+        case 2:
+          handler[i].call(this, arguments[1]);
+          break;
+        case 3:
+          handler[i].call(this, arguments[1], arguments[2]);
+          break;
+        default:
+          handler[i].apply(this, args);
+        }
+      }
+      return true;
+    } else if (!this._all && type === 'error') {
+      if (arguments[1] instanceof Error) {
+        throw arguments[1]; // Unhandled 'error' event
+      } else {
+        throw new Error("Uncaught, unspecified 'error' event.");
+      }
+      return false;
+    }
+
+    return !!this._all;
+  };
+
+  EventEmitter.prototype.emitAsync = function() {
+
+    this._events || init.call(this);
+
+    var type = arguments[0];
+
+    if (type === 'newListener' && !this.newListener) {
+        if (!this._events.newListener) { return Promise.resolve([false]); }
+    }
+
+    var promises= [];
+
+    var al = arguments.length;
+    var args,l,i,j;
+    var handler;
+
+    if (this._all) {
+      if (al > 3) {
+        args = new Array(al);
+        for (j = 1; j < al; j++) args[j] = arguments[j];
+      }
+      for (i = 0, l = this._all.length; i < l; i++) {
+        this.event = type;
+        switch (al) {
+        case 1:
+          promises.push(this._all[i].call(this, type));
+          break;
+        case 2:
+          promises.push(this._all[i].call(this, type, arguments[1]));
+          break;
+        case 3:
+          promises.push(this._all[i].call(this, type, arguments[1], arguments[2]));
+          break;
+        default:
+          promises.push(this._all[i].apply(this, args));
+        }
+      }
+    }
+
+    if (this.wildcard) {
+      handler = [];
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      searchListenerTree.call(this, handler, ns, this.listenerTree, 0);
+    } else {
+      handler = this._events[type];
+    }
+
+    if (typeof handler === 'function') {
+      this.event = type;
+      switch (al) {
+      case 1:
+        promises.push(handler.call(this));
+        break;
+      case 2:
+        promises.push(handler.call(this, arguments[1]));
+        break;
+      case 3:
+        promises.push(handler.call(this, arguments[1], arguments[2]));
+        break;
+      default:
+        args = new Array(al - 1);
+        for (j = 1; j < al; j++) args[j - 1] = arguments[j];
+        promises.push(handler.apply(this, args));
+      }
+    } else if (handler && handler.length) {
+      if (al > 3) {
+        args = new Array(al - 1);
+        for (j = 1; j < al; j++) args[j - 1] = arguments[j];
+      }
+      for (i = 0, l = handler.length; i < l; i++) {
+        this.event = type;
+        switch (al) {
+        case 1:
+          promises.push(handler[i].call(this));
+          break;
+        case 2:
+          promises.push(handler[i].call(this, arguments[1]));
+          break;
+        case 3:
+          promises.push(handler[i].call(this, arguments[1], arguments[2]));
+          break;
+        default:
+          promises.push(handler[i].apply(this, args));
+        }
+      }
+    } else if (!this._all && type === 'error') {
+      if (arguments[1] instanceof Error) {
+        return Promise.reject(arguments[1]); // Unhandled 'error' event
+      } else {
+        return Promise.reject("Uncaught, unspecified 'error' event.");
+      }
+    }
+
+    return Promise.all(promises);
+  };
+
+  EventEmitter.prototype.on = function(type, listener) {
+    if (typeof type === 'function') {
+      this.onAny(type);
+      return this;
+    }
+
+    if (typeof listener !== 'function') {
+      throw new Error('on only accepts instances of Function');
+    }
+    this._events || init.call(this);
+
+    // To avoid recursion in the case that type == "newListeners"! Before
+    // adding it to the listeners, first emit "newListeners".
+    this.emit('newListener', type, listener);
+
+    if (this.wildcard) {
+      growListenerTree.call(this, type, listener);
+      return this;
+    }
+
+    if (!this._events[type]) {
+      // Optimize the case of one listener. Don't need the extra array object.
+      this._events[type] = listener;
+    }
+    else {
+      if (typeof this._events[type] === 'function') {
+        // Change to array.
+        this._events[type] = [this._events[type]];
+      }
+
+      // If we've already got an array, just append.
+      this._events[type].push(listener);
+
+      // Check for listener leak
+      if (
+        !this._events[type].warned &&
+        this._events.maxListeners > 0 &&
+        this._events[type].length > this._events.maxListeners
+      ) {
+        this._events[type].warned = true;
+        logPossibleMemoryLeak.call(this, this._events[type].length, type);
+      }
+    }
+
+    return this;
+  };
+
+  EventEmitter.prototype.onAny = function(fn) {
+    if (typeof fn !== 'function') {
+      throw new Error('onAny only accepts instances of Function');
+    }
+
+    if (!this._all) {
+      this._all = [];
+    }
+
+    // Add the function to the event listener collection.
+    this._all.push(fn);
+    return this;
+  };
+
+  EventEmitter.prototype.addListener = EventEmitter.prototype.on;
+
+  EventEmitter.prototype.off = function(type, listener) {
+    if (typeof listener !== 'function') {
+      throw new Error('removeListener only takes instances of Function');
+    }
+
+    var handlers,leafs=[];
+
+    if(this.wildcard) {
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      leafs = searchListenerTree.call(this, null, ns, this.listenerTree, 0);
+    }
+    else {
+      // does not use listeners(), so no side effect of creating _events[type]
+      if (!this._events[type]) return this;
+      handlers = this._events[type];
+      leafs.push({_listeners:handlers});
+    }
+
+    for (var iLeaf=0; iLeaf<leafs.length; iLeaf++) {
+      var leaf = leafs[iLeaf];
+      handlers = leaf._listeners;
+      if (isArray(handlers)) {
+
+        var position = -1;
+
+        for (var i = 0, length = handlers.length; i < length; i++) {
+          if (handlers[i] === listener ||
+            (handlers[i].listener && handlers[i].listener === listener) ||
+            (handlers[i]._origin && handlers[i]._origin === listener)) {
+            position = i;
+            break;
+          }
+        }
+
+        if (position < 0) {
+          continue;
+        }
+
+        if(this.wildcard) {
+          leaf._listeners.splice(position, 1);
+        }
+        else {
+          this._events[type].splice(position, 1);
+        }
+
+        if (handlers.length === 0) {
+          if(this.wildcard) {
+            delete leaf._listeners;
+          }
+          else {
+            delete this._events[type];
+          }
+        }
+
+        this.emit("removeListener", type, listener);
+
+        return this;
+      }
+      else if (handlers === listener ||
+        (handlers.listener && handlers.listener === listener) ||
+        (handlers._origin && handlers._origin === listener)) {
+        if(this.wildcard) {
+          delete leaf._listeners;
+        }
+        else {
+          delete this._events[type];
+        }
+
+        this.emit("removeListener", type, listener);
+      }
+    }
+
+    function recursivelyGarbageCollect(root) {
+      if (root === undefined) {
+        return;
+      }
+      var keys = Object.keys(root);
+      for (var i in keys) {
+        var key = keys[i];
+        var obj = root[key];
+        if ((obj instanceof Function) || (typeof obj !== "object") || (obj === null))
+          continue;
+        if (Object.keys(obj).length > 0) {
+          recursivelyGarbageCollect(root[key]);
+        }
+        if (Object.keys(obj).length === 0) {
+          delete root[key];
+        }
+      }
+    }
+    recursivelyGarbageCollect(this.listenerTree);
+
+    return this;
+  };
+
+  EventEmitter.prototype.offAny = function(fn) {
+    var i = 0, l = 0, fns;
+    if (fn && this._all && this._all.length > 0) {
+      fns = this._all;
+      for(i = 0, l = fns.length; i < l; i++) {
+        if(fn === fns[i]) {
+          fns.splice(i, 1);
+          this.emit("removeListenerAny", fn);
+          return this;
+        }
+      }
+    } else {
+      fns = this._all;
+      for(i = 0, l = fns.length; i < l; i++)
+        this.emit("removeListenerAny", fns[i]);
+      this._all = [];
+    }
+    return this;
+  };
+
+  EventEmitter.prototype.removeListener = EventEmitter.prototype.off;
+
+  EventEmitter.prototype.removeAllListeners = function(type) {
+    if (arguments.length === 0) {
+      !this._events || init.call(this);
+      return this;
+    }
+
+    if (this.wildcard) {
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      var leafs = searchListenerTree.call(this, null, ns, this.listenerTree, 0);
+
+      for (var iLeaf=0; iLeaf<leafs.length; iLeaf++) {
+        var leaf = leafs[iLeaf];
+        leaf._listeners = null;
+      }
+    }
+    else if (this._events) {
+      this._events[type] = null;
+    }
+    return this;
+  };
+
+  EventEmitter.prototype.listeners = function(type) {
+    if (this.wildcard) {
+      var handlers = [];
+      var ns = typeof type === 'string' ? type.split(this.delimiter) : type.slice();
+      searchListenerTree.call(this, handlers, ns, this.listenerTree, 0);
+      return handlers;
+    }
+
+    this._events || init.call(this);
+
+    if (!this._events[type]) this._events[type] = [];
+    if (!isArray(this._events[type])) {
+      this._events[type] = [this._events[type]];
+    }
+    return this._events[type];
+  };
+
+  EventEmitter.prototype.listenerCount = function(type) {
+    return this.listeners(type).length;
+  };
+
+  EventEmitter.prototype.listenersAny = function() {
+
+    if(this._all) {
+      return this._all;
+    }
+    else {
+      return [];
+    }
+
+  };
+
+  if (typeof define === 'function' && define.amd) {
+     // AMD. Register as an anonymous module.
+    define(function() {
+      return EventEmitter;
+    });
+  } else if (typeof exports === 'object') {
+    // CommonJS
+    module.exports = EventEmitter;
+  }
+  else {
+    // Browser global.
+    window.EventEmitter2 = EventEmitter;
+  }
+}();
+
+},{}],2:[function(require,module,exports){
+/*
+object-assign
+(c) Sindre Sorhus
+@license MIT
+*/
+
+'use strict';
+/* eslint-disable no-unused-vars */
+var getOwnPropertySymbols = Object.getOwnPropertySymbols;
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+var propIsEnumerable = Object.prototype.propertyIsEnumerable;
+
+function toObject(val) {
+	if (val === null || val === undefined) {
+		throw new TypeError('Object.assign cannot be called with null or undefined');
+	}
+
+	return Object(val);
+}
+
+function shouldUseNative() {
+	try {
+		if (!Object.assign) {
+			return false;
+		}
+
+		// Detect buggy property enumeration order in older V8 versions.
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
+		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
+		test1[5] = 'de';
+		if (Object.getOwnPropertyNames(test1)[0] === '5') {
+			return false;
+		}
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
+		var test2 = {};
+		for (var i = 0; i < 10; i++) {
+			test2['_' + String.fromCharCode(i)] = i;
+		}
+		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
+			return test2[n];
+		});
+		if (order2.join('') !== '0123456789') {
+			return false;
+		}
+
+		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
+		var test3 = {};
+		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
+			test3[letter] = letter;
+		});
+		if (Object.keys(Object.assign({}, test3)).join('') !==
+				'abcdefghijklmnopqrst') {
+			return false;
+		}
+
+		return true;
+	} catch (err) {
+		// We don't expect any of the above to throw, but better to be safe.
+		return false;
+	}
+}
+
+module.exports = shouldUseNative() ? Object.assign : function (target, source) {
+	var from;
+	var to = toObject(target);
+	var symbols;
+
+	for (var s = 1; s < arguments.length; s++) {
+		from = Object(arguments[s]);
+
+		for (var key in from) {
+			if (hasOwnProperty.call(from, key)) {
+				to[key] = from[key];
+			}
+		}
+
+		if (getOwnPropertySymbols) {
+			symbols = getOwnPropertySymbols(from);
+			for (var i = 0; i < symbols.length; i++) {
+				if (propIsEnumerable.call(from, symbols[i])) {
+					to[symbols[i]] = from[symbols[i]];
+				}
+			}
+		}
+	}
+
+	return to;
+};
+
+},{}],3:[function(require,module,exports){
+/**
+ * @fileOverview
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+/**
+ * If you use roslib in a browser, all the classes will be exported to a global variable called ROSLIB.
+ *
+ * If you use nodejs, this is the variable you get when you require('roslib')
+ */
+var ROSLIB = this.ROSLIB || {
+  REVISION : '0.20.0'
+};
+
+var assign = require('object-assign');
+
+// Add core components
+assign(ROSLIB, require('./core'));
+
+assign(ROSLIB, require('./actionlib'));
+
+assign(ROSLIB, require('./math'));
+
+assign(ROSLIB, require('./tf'));
+
+assign(ROSLIB, require('./urdf'));
+
+module.exports = ROSLIB;
+
+},{"./actionlib":9,"./core":18,"./math":23,"./tf":26,"./urdf":38,"object-assign":2}],4:[function(require,module,exports){
+(function (global){
+global.ROSLIB = require('./RosLib');
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./RosLib":3}],5:[function(require,module,exports){
+/**
+ * @fileOverview
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var Topic = require('../core/Topic');
+var Message = require('../core/Message');
+var EventEmitter2 = require('eventemitter2').EventEmitter2;
+
+/**
+ * An actionlib action client.
+ *
+ * Emits the following events:
+ *  * 'timeout' - if a timeout occurred while sending a goal
+ *  * 'status' - the status messages received from the action server
+ *  * 'feedback' -  the feedback messages received from the action server
+ *  * 'result' - the result returned from the action server
+ *
+ *  @constructor
+ *  @param options - object with following keys:
+ *   * ros - the ROSLIB.Ros connection handle
+ *   * serverName - the action server name, like /fibonacci
+ *   * actionName - the action message name, like 'actionlib_tutorials/FibonacciAction'
+ *   * timeout - the timeout length when connecting to the action server
+ */
+function ActionClient(options) {
+  var that = this;
+  options = options || {};
+  this.ros = options.ros;
+  this.serverName = options.serverName;
+  this.actionName = options.actionName;
+  this.timeout = options.timeout;
+  this.omitFeedback = options.omitFeedback;
+  this.omitStatus = options.omitStatus;
+  this.omitResult = options.omitResult;
+  this.goals = {};
+
+  // flag to check if a status has been received
+  var receivedStatus = false;
+
+  // create the topics associated with actionlib
+  this.feedbackListener = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/feedback',
+    messageType : this.actionName + 'Feedback'
+  });
+
+  this.statusListener = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/status',
+    messageType : 'actionlib_msgs/GoalStatusArray'
+  });
+
+  this.resultListener = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/result',
+    messageType : this.actionName + 'Result'
+  });
+
+  this.goalTopic = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/goal',
+    messageType : this.actionName + 'Goal'
+  });
+
+  this.cancelTopic = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/cancel',
+    messageType : 'actionlib_msgs/GoalID'
+  });
+
+  // advertise the goal and cancel topics
+  this.goalTopic.advertise();
+  this.cancelTopic.advertise();
+
+  // subscribe to the status topic
+  if (!this.omitStatus) {
+    this.statusListener.subscribe(function(statusMessage) {
+      receivedStatus = true;
+      statusMessage.status_list.forEach(function(status) {
+        var goal = that.goals[status.goal_id.id];
+        if (goal) {
+          goal.emit('status', status);
+        }
+      });
+    });
+  }
+
+  // subscribe the the feedback topic
+  if (!this.omitFeedback) {
+    this.feedbackListener.subscribe(function(feedbackMessage) {
+      var goal = that.goals[feedbackMessage.status.goal_id.id];
+      if (goal) {
+        goal.emit('status', feedbackMessage.status);
+        goal.emit('feedback', feedbackMessage.feedback);
+      }
+    });
+  }
+
+  // subscribe to the result topic
+  if (!this.omitResult) {
+    this.resultListener.subscribe(function(resultMessage) {
+      var goal = that.goals[resultMessage.status.goal_id.id];
+
+      if (goal) {
+        goal.emit('status', resultMessage.status);
+        goal.emit('result', resultMessage.result);
+      }
+    });
+  }
+
+  // If timeout specified, emit a 'timeout' event if the action server does not respond
+  if (this.timeout) {
+    setTimeout(function() {
+      if (!receivedStatus) {
+        that.emit('timeout');
+      }
+    }, this.timeout);
+  }
+}
+
+ActionClient.prototype.__proto__ = EventEmitter2.prototype;
+
+/**
+ * Cancel all goals associated with this ActionClient.
+ */
+ActionClient.prototype.cancel = function() {
+  var cancelMessage = new Message();
+  this.cancelTopic.publish(cancelMessage);
+};
+
+/**
+ * Unsubscribe and unadvertise all topics associated with this ActionClient.
+ */
+ActionClient.prototype.dispose = function() {
+  this.goalTopic.unadvertise();
+  this.cancelTopic.unadvertise();
+  if (!this.omitStatus) {this.statusListener.unsubscribe();}
+  if (!this.omitFeedback) {this.feedbackListener.unsubscribe();}
+  if (!this.omitResult) {this.resultListener.unsubscribe();}
+};
+
+module.exports = ActionClient;
+
+},{"../core/Message":10,"../core/Topic":17,"eventemitter2":1}],6:[function(require,module,exports){
+/**
+ * @fileOverview
+ * @author Justin Young - justin@oodar.com.au
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var Topic = require('../core/Topic');
+var Message = require('../core/Message');
+var EventEmitter2 = require('eventemitter2').EventEmitter2;
+
+/**
+ * An actionlib action listener
+ *
+ * Emits the following events:
+ *  * 'status' - the status messages received from the action server
+ *  * 'feedback' -  the feedback messages received from the action server
+ *  * 'result' - the result returned from the action server
+ *
+ *  @constructor
+ *  @param options - object with following keys:
+ *   * ros - the ROSLIB.Ros connection handle
+ *   * serverName - the action server name, like /fibonacci
+ *   * actionName - the action message name, like 'actionlib_tutorials/FibonacciAction'
+ */
+function ActionListener(options) {
+  var that = this;
+  options = options || {};
+  this.ros = options.ros;
+  this.serverName = options.serverName;
+  this.actionName = options.actionName;
+  this.timeout = options.timeout;
+  this.omitFeedback = options.omitFeedback;
+  this.omitStatus = options.omitStatus;
+  this.omitResult = options.omitResult;
+
+
+  // create the topics associated with actionlib
+  var goalListener = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/goal',
+    messageType : this.actionName + 'Goal'
+  });
+
+  var feedbackListener = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/feedback',
+    messageType : this.actionName + 'Feedback'
+  });
+
+  var statusListener = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/status',
+    messageType : 'actionlib_msgs/GoalStatusArray'
+  });
+
+  var resultListener = new Topic({
+    ros : this.ros,
+    name : this.serverName + '/result',
+    messageType : this.actionName + 'Result'
+  });
+
+  goalListener.subscribe(function(goalMessage) {
+      that.emit('goal', goalMessage);
+  });
+
+  statusListener.subscribe(function(statusMessage) {
+      statusMessage.status_list.forEach(function(status) {
+          that.emit('status', status);
+      });
+  });
+
+  feedbackListener.subscribe(function(feedbackMessage) {
+      that.emit('status', feedbackMessage.status);
+      that.emit('feedback', feedbackMessage.feedback);
+  });
+
+  // subscribe to the result topic
+  resultListener.subscribe(function(resultMessage) {
+      that.emit('status', resultMessage.status);
+      that.emit('result', resultMessage.result);
+  });
+
+}
+
+ActionListener.prototype.__proto__ = EventEmitter2.prototype;
+
+module.exports = ActionListener;
+
+},{"../core/Message":10,"../core/Topic":17,"eventemitter2":1}],7:[function(require,module,exports){
+/**
+ * @fileOverview
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var Message = require('../core/Message');
+var EventEmitter2 = require('eventemitter2').EventEmitter2;
+
+/**
+ * An actionlib goal goal is associated with an action server.
+ *
+ * Emits the following events:
+ *  * 'timeout' - if a timeout occurred while sending a goal
+ *
+ *  @constructor
+ *  @param object with following keys:
+ *   * actionClient - the ROSLIB.ActionClient to use with this goal
+ *   * goalMessage - The JSON object containing the goal for the action server
+ */
+function Goal(options) {
+  var that = this;
+  this.actionClient = options.actionClient;
+  this.goalMessage = options.goalMessage;
+  this.isFinished = false;
+
+  // Used to create random IDs
+  var date = new Date();
+
+  // Create a random ID
+  this.goalID = 'goal_' + Math.random() + '_' + date.getTime();
+  // Fill in the goal message
+  this.goalMessage = new Message({
+    goal_id : {
+      stamp : {
+        secs : 0,
+        nsecs : 0
+      },
+      id : this.goalID
+    },
+    goal : this.goalMessage
+  });
+
+  this.on('status', function(status) {
+    that.status = status;
+  });
+
+  this.on('result', function(result) {
+    that.isFinished = true;
+    that.result = result;
+  });
+
+  this.on('feedback', function(feedback) {
+    that.feedback = feedback;
+  });
+
+  // Add the goal
+  this.actionClient.goals[this.goalID] = this;
+}
+
+Goal.prototype.__proto__ = EventEmitter2.prototype;
+
+/**
+ * Send the goal to the action server.
+ *
+ * @param timeout (optional) - a timeout length for the goal's result
+ */
+Goal.prototype.send = function(timeout) {
+  var that = this;
+  that.actionClient.goalTopic.publish(that.goalMessage);
+  if (timeout) {
+    setTimeout(function() {
+      if (!that.isFinished) {
+        that.emit('timeout');
+      }
+    }, timeout);
+  }
+};
+
+/**
+ * Cancel the current goal.
+ */
+Goal.prototype.cancel = function() {
+  var cancelMessage = new Message({
+    id : this.goalID
+  });
+  this.actionClient.cancelTopic.publish(cancelMessage);
+};
+
+module.exports = Goal;
+},{"../core/Message":10,"eventemitter2":1}],8:[function(require,module,exports){
+/**
+ * @fileOverview
+ * @author Laura Lindzey - lindzey@gmail.com
+ */
+
+var Topic = require('../core/Topic');
+var Message = require('../core/Message');
+var EventEmitter2 = require('eventemitter2').EventEmitter2;
+
+/**
+ * An actionlib action server client.
+ *
+ * Emits the following events:
+ *  * 'goal' - goal sent by action client
+ *  * 'cancel' - action client has canceled the request
+ *
+ *  @constructor
+ *  @param options - object with following keys:
+ *   * ros - the ROSLIB.Ros connection handle
+ *   * serverName - the action server name, like /fibonacci
+ *   * actionName - the action message name, like 'actionlib_tutorials/FibonacciAction'
+ */
+
+function SimpleActionServer(options) {
+    var that = this;
+    options = options || {};
+    this.ros = options.ros;
+    this.serverName = options.serverName;
+    this.actionName = options.actionName;
+
+    // create and advertise publishers
+    this.feedbackPublisher = new Topic({
+        ros : this.ros,
+        name : this.serverName + '/feedback',
+        messageType : this.actionName + 'Feedback'
+    });
+    this.feedbackPublisher.advertise();
+
+    var statusPublisher = new Topic({
+        ros : this.ros,
+        name : this.serverName + '/status',
+        messageType : 'actionlib_msgs/GoalStatusArray'
+    });
+    statusPublisher.advertise();
+
+    this.resultPublisher = new Topic({
+        ros : this.ros,
+        name : this.serverName + '/result',
+        messageType : this.actionName + 'Result'
+    });
+    this.resultPublisher.advertise();
+
+    // create and subscribe to listeners
+    var goalListener = new Topic({
+        ros : this.ros,
+        name : this.serverName + '/goal',
+        messageType : this.actionName + 'Goal'
+    });
+
+    var cancelListener = new Topic({
+        ros : this.ros,
+        name : this.serverName + '/cancel',
+        messageType : 'actionlib_msgs/GoalID'
+    });
+
+    // Track the goals and their status in order to publish status...
+    this.statusMessage = new Message({
+        header : {
+            stamp : {secs : 0, nsecs : 100},
+            frame_id : ''
+        },
+        status_list : []
+    });
+
+    // needed for handling preemption prompted by a new goal being received
+    this.currentGoal = null; // currently tracked goal
+    this.nextGoal = null; // the one that'll be preempting
+
+    goalListener.subscribe(function(goalMessage) {
+        
+    if(that.currentGoal) {
+            that.nextGoal = goalMessage;
+            // needs to happen AFTER rest is set up
+            that.emit('cancel');
+    } else {
+            that.statusMessage.status_list = [{goal_id : goalMessage.goal_id, status : 1}];
+            that.currentGoal = goalMessage;
+            that.emit('goal', goalMessage.goal);
+    }
+    });
+
+    // helper function for determing ordering of timestamps
+    // returns t1 < t2
+    var isEarlier = function(t1, t2) {
+        if(t1.secs > t2.secs) {
+            return false;
+        } else if(t1.secs < t2.secs) {
+            return true;
+        } else if(t1.nsecs < t2.nsecs) {
+            return true;
+        } else {
+            return false;
+        }
+    };
+
+    // TODO: this may be more complicated than necessary, since I'm
+    // not sure if the callbacks can ever wind up with a scenario
+    // where we've been preempted by a next goal, it hasn't finished
+    // processing, and then we get a cancel message
+    cancelListener.subscribe(function(cancelMessage) {
+
+        // cancel ALL goals if both empty
+        if(cancelMessage.stamp.secs === 0 && cancelMessage.stamp.secs === 0 && cancelMessage.id === '') {
+            that.nextGoal = null;
+            if(that.currentGoal) {
+                that.emit('cancel');
+            }
+        } else { // treat id and stamp independently
+            if(that.currentGoal && cancelMessage.id === that.currentGoal.goal_id.id) {
+                that.emit('cancel');
+            } else if(that.nextGoal && cancelMessage.id === that.nextGoal.goal_id.id) {
+                that.nextGoal = null;
+            }
+
+            if(that.nextGoal && isEarlier(that.nextGoal.goal_id.stamp,
+                                          cancelMessage.stamp)) {
+                that.nextGoal = null;
+            }
+            if(that.currentGoal && isEarlier(that.currentGoal.goal_id.stamp,
+                                             cancelMessage.stamp)) {
+                
+                that.emit('cancel');
+            }
+        }
+    });
+
+    // publish status at pseudo-fixed rate; required for clients to know they've connected
+    var statusInterval = setInterval( function() {
+        var currentTime = new Date();
+        var secs = Math.floor(currentTime.getTime()/1000);
+        var nsecs = Math.round(1000000000*(currentTime.getTime()/1000-secs));
+        that.statusMessage.header.stamp.secs = secs;
+        that.statusMessage.header.stamp.nsecs = nsecs;
+        statusPublisher.publish(that.statusMessage);
+    }, 500); // publish every 500ms
+
+}
+
+SimpleActionServer.prototype.__proto__ = EventEmitter2.prototype;
+
+/**
+*  Set action state to succeeded and return to client
+*/
+
+SimpleActionServer.prototype.setSucceeded = function(result2) {
+    
+
+    var resultMessage = new Message({
+        status : {goal_id : this.currentGoal.goal_id, status : 3},
+        result : result2
+    });
+    this.resultPublisher.publish(resultMessage);
+
+    this.statusMessage.status_list = [];
+    if(this.nextGoal) {
+        this.currentGoal = this.nextGoal;
+        this.nextGoal = null;
+        this.emit('goal', this.currentGoal.goal);
+    } else {
+        this.currentGoal = null;
+    }
+};
+
+/**
+*  Function to send feedback
+*/
+
+SimpleActionServer.prototype.sendFeedback = function(feedback2) {
+
+    var feedbackMessage = new Message({
+        status : {goal_id : this.currentGoal.goal_id, status : 1},
+        feedback : feedback2
+    });
+    this.feedbackPublisher.publish(feedbackMessage);
+};
+
+/**
+*  Handle case where client requests preemption
+*/
+
+SimpleActionServer.prototype.setPreempted = function() {
+
+    this.statusMessage.status_list = [];
+    var resultMessage = new Message({
+        status : {goal_id : this.currentGoal.goal_id, status : 2},
+    });
+    this.resultPublisher.publish(resultMessage);
+
+    if(this.nextGoal) {
+        this.currentGoal = this.nextGoal;
+        this.nextGoal = null;
+        this.emit('goal', this.currentGoal.goal);
+    } else {
+        this.currentGoal = null;
+    }
+};
+
+module.exports = SimpleActionServer;
+},{"../core/Message":10,"../core/Topic":17,"eventemitter2":1}],9:[function(require,module,exports){
+var Ros = require('../core/Ros');
+var mixin = require('../mixin');
+
+var action = module.exports = {
+    ActionClient: require('./ActionClient'),
+    ActionListener: require('./ActionListener'),
+    Goal: require('./Goal'),
+    SimpleActionServer: require('./SimpleActionServer')
+};
+
+mixin(Ros, ['ActionClient', 'SimpleActionServer'], action);
+
+},{"../core/Ros":12,"../mixin":24,"./ActionClient":5,"./ActionListener":6,"./Goal":7,"./SimpleActionServer":8}],10:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author Brandon Alexander - baalexander@gmail.com
+ */
+
+var assign = require('object-assign');
+
+/**
+ * Message objects are used for publishing and subscribing to and from topics.
+ *
+ * @constructor
+ * @param values - object matching the fields defined in the .msg definition file
+ */
+function Message(values) {
+  assign(this, values);
+}
+
+module.exports = Message;
+},{"object-assign":2}],11:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author Brandon Alexander - baalexander@gmail.com
+ */
+
+var Service = require('./Service');
+var ServiceRequest = require('./ServiceRequest');
+
+/**
+ * A ROS parameter.
+ *
+ * @constructor
+ * @param options - possible keys include:
+ *   * ros - the ROSLIB.Ros connection handle
+ *   * name - the param name, like max_vel_x
+ */
+function Param(options) {
+  options = options || {};
+  this.ros = options.ros;
+  this.name = options.name;
+}
+
+/**
+ * Fetches the value of the param.
+ *
+ * @param callback - function with the following params:
+ *  * value - the value of the param from ROS.
+ */
+Param.prototype.get = function(callback) {
+  var paramClient = new Service({
+    ros : this.ros,
+    name : '/rosapi/get_param',
+    serviceType : 'rosapi/GetParam'
+  });
+
+  var request = new ServiceRequest({
+    name : this.name
+  });
+
+  paramClient.callService(request, function(result) {
+    var value = JSON.parse(result.value);
+    callback(value);
+  });
+};
+
+/**
+ * Sets the value of the param in ROS.
+ *
+ * @param value - value to set param to.
+ */
+Param.prototype.set = function(value, callback) {
+  var paramClient = new Service({
+    ros : this.ros,
+    name : '/rosapi/set_param',
+    serviceType : 'rosapi/SetParam'
+  });
+
+  var request = new ServiceRequest({
+    name : this.name,
+    value : JSON.stringify(value)
+  });
+
+  paramClient.callService(request, callback);
+};
+
+/**
+ * Delete this parameter on the ROS server.
+ */
+Param.prototype.delete = function(callback) {
+  var paramClient = new Service({
+    ros : this.ros,
+    name : '/rosapi/delete_param',
+    serviceType : 'rosapi/DeleteParam'
+  });
+
+  var request = new ServiceRequest({
+    name : this.name
+  });
+
+  paramClient.callService(request, callback);
+};
+
+module.exports = Param;
+},{"./Service":13,"./ServiceRequest":14}],12:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author Brandon Alexander - baalexander@gmail.com
+ */
+
+var WebSocket = require('ws');
+var socketAdapter = require('./SocketAdapter.js');
+
+var Service = require('./Service');
+var ServiceRequest = require('./ServiceRequest');
+
+var assign = require('object-assign');
+var EventEmitter2 = require('eventemitter2').EventEmitter2;
+
+/**
+ * Manages connection to the server and all interactions with ROS.
+ *
+ * Emits the following events:
+ *  * 'error' - there was an error with ROS
+ *  * 'connection' - connected to the WebSocket server
+ *  * 'close' - disconnected to the WebSocket server
+ *  * <topicName> - a message came from rosbridge with the given topic name
+ *  * <serviceID> - a service response came from rosbridge with the given ID
+ *
+ * @constructor
+ * @param options - possible keys include: <br>
+ *   * url (optional) - (can be specified later with `connect`) the WebSocket URL for rosbridge or the node server url to connect using socket.io (if socket.io exists in the page) <br>
+ *   * groovyCompatibility - don't use interfaces that changed after the last groovy release or rosbridge_suite and related tools (defaults to true)
+ *   * transportLibrary (optional) - one of 'websocket' (default), 'socket.io' or RTCPeerConnection instance controlling how the connection is created in `connect`.
+ *   * transportOptions (optional) - the options to use use when creating a connection. Currently only used if `transportLibrary` is RTCPeerConnection.
+ */
+function Ros(options) {
+  options = options || {};
+  this.socket = null;
+  this.idCounter = 0;
+  this.isConnected = false;
+  this.transportLibrary = options.transportLibrary || 'websocket';
+  this.transportOptions = options.transportOptions || {};
+
+  if (typeof options.groovyCompatibility === 'undefined') {
+    this.groovyCompatibility = true;
+  }
+  else {
+    this.groovyCompatibility = options.groovyCompatibility;
+  }
+
+  // Sets unlimited event listeners.
+  this.setMaxListeners(0);
+
+  // begin by checking if a URL was given
+  if (options.url) {
+    this.connect(options.url);
+  }
+}
+
+Ros.prototype.__proto__ = EventEmitter2.prototype;
+
+/**
+ * Connect to the specified WebSocket.
+ *
+ * @param url - WebSocket URL or RTCDataChannel label for Rosbridge
+ */
+Ros.prototype.connect = function(url) {
+  if (this.transportLibrary === 'socket.io') {
+    this.socket = assign(io(url, {'force new connection': true}), socketAdapter(this));
+    this.socket.on('connect', this.socket.onopen);
+    this.socket.on('data', this.socket.onmessage);
+    this.socket.on('close', this.socket.onclose);
+    this.socket.on('error', this.socket.onerror);
+  } else if (this.transportLibrary.constructor.name === 'RTCPeerConnection') {
+    this.socket = assign(this.transportLibrary.createDataChannel(url, this.transportOptions), socketAdapter(this));
+  }else {
+    this.socket = assign(new WebSocket(url), socketAdapter(this));
+  }
+
+};
+
+/**
+ * Disconnect from the WebSocket server.
+ */
+Ros.prototype.close = function() {
+  if (this.socket) {
+    this.socket.close();
+  }
+};
+
+/**
+ * Sends an authorization request to the server.
+ *
+ * @param mac - MAC (hash) string given by the trusted source.
+ * @param client - IP of the client.
+ * @param dest - IP of the destination.
+ * @param rand - Random string given by the trusted source.
+ * @param t - Time of the authorization request.
+ * @param level - User level as a string given by the client.
+ * @param end - End time of the client's session.
+ */
+Ros.prototype.authenticate = function(mac, client, dest, rand, t, level, end) {
+  // create the request
+  var auth = {
+    op : 'auth',
+    mac : mac,
+    client : client,
+    dest : dest,
+    rand : rand,
+    t : t,
+    level : level,
+    end : end
+  };
+  // send the request
+  this.callOnConnection(auth);
+};
+
+/**
+ * Sends the message over the WebSocket, but queues the message up if not yet
+ * connected.
+ */
+Ros.prototype.callOnConnection = function(message) {
+  var that = this;
+  var messageJson = JSON.stringify(message);
+  var emitter = null;
+  if (this.transportLibrary === 'socket.io') {
+    emitter = function(msg){that.socket.emit('operation', msg);};
+  } else {
+    emitter = function(msg){that.socket.send(msg);};
+  }
+
+  if (!this.isConnected) {
+    that.once('connection', function() {
+      emitter(messageJson);
+    });
+  } else {
+    emitter(messageJson);
+  }
+};
+
+/**
+ * Sends a set_level request to the server
+ *
+ * @param level - Status level (none, error, warning, info)
+ * @param id - Optional: Operation ID to change status level on
+ */
+Ros.prototype.setStatusLevel = function(level, id){
+  var levelMsg = {
+    op: 'set_level',
+    level: level,
+    id: id
+  };
+
+  this.callOnConnection(levelMsg);
+};
+
+/**
+ * Retrieves Action Servers in ROS as an array of string
+ *
+ *   * actionservers - Array of action server names
+ */
+Ros.prototype.getActionServers = function(callback, failedCallback) {
+  var getActionServers = new Service({
+    ros : this,
+    name : '/rosapi/action_servers',
+    serviceType : 'rosapi/GetActionServers'
+  });
+
+  var request = new ServiceRequest({});
+  if (typeof failedCallback === 'function'){
+    getActionServers.callService(request,
+      function(result) {
+        callback(result.action_servers);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    getActionServers.callService(request, function(result) {
+      callback(result.action_servers);
+    });
+  }
+};
+
+/**
+ * Retrieves list of topics in ROS as an array.
+ *
+ * @param callback function with params:
+ *   * topics - Array of topic names
+ */
+Ros.prototype.getTopics = function(callback, failedCallback) {
+  var topicsClient = new Service({
+    ros : this,
+    name : '/rosapi/topics',
+    serviceType : 'rosapi/Topics'
+  });
+
+  var request = new ServiceRequest();
+  if (typeof failedCallback === 'function'){
+    topicsClient.callService(request,
+      function(result) {
+        callback(result);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    topicsClient.callService(request, function(result) {
+      callback(result);
+    });
+  }
+};
+
+/**
+ * Retrieves Topics in ROS as an array as specific type
+ *
+ * @param topicType topic type to find:
+ * @param callback function with params:
+ *   * topics - Array of topic names
+ */
+Ros.prototype.getTopicsForType = function(topicType, callback, failedCallback) {
+  var topicsForTypeClient = new Service({
+    ros : this,
+    name : '/rosapi/topics_for_type',
+    serviceType : 'rosapi/TopicsForType'
+  });
+
+  var request = new ServiceRequest({
+    type: topicType
+  });
+  if (typeof failedCallback === 'function'){
+    topicsForTypeClient.callService(request,
+      function(result) {
+        callback(result.topics);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    topicsForTypeClient.callService(request, function(result) {
+      callback(result.topics);
+    });
+  }
+};
+
+/**
+ * Retrieves list of active service names in ROS.
+ *
+ * @param callback - function with the following params:
+ *   * services - array of service names
+ */
+Ros.prototype.getServices = function(callback, failedCallback) {
+  var servicesClient = new Service({
+    ros : this,
+    name : '/rosapi/services',
+    serviceType : 'rosapi/Services'
+  });
+
+  var request = new ServiceRequest();
+  if (typeof failedCallback === 'function'){
+    servicesClient.callService(request,
+      function(result) {
+        callback(result.services);
+      },
+      function(message) {
+        failedCallback(message);
+      }
+    );
+  }else{
+    servicesClient.callService(request, function(result) {
+      callback(result.services);
+    });
+  }
+};
+
+/**
+ * Retrieves list of services in ROS as an array as specific type
+ *
+ * @param serviceType service type to find:
+ * @param callback function with params:
+ *   * topics - Array of service names
+ */
+Ros.prototype.getServicesForType = function(serviceType, callback, failedCallback) {
+  var servicesForTypeClient = new Service({
+    ros : this,
+    name : '/rosapi/services_for_type',
+    serviceType : 'rosapi/ServicesForType'
+  });
+
+  var request = new ServiceRequest({
+    type: serviceType
+  });
+  if (typeof failedCallback === 'function'){
+    servicesForTypeClient.callService(request,
+      function(result) {
+        callback(result.services);
+      },
+      function(message) {
+        failedCallback(message);
+      }
+    );
+  }else{
+    servicesForTypeClient.callService(request, function(result) {
+      callback(result.services);
+    });
+  }
+};
+
+/**
+ * Retrieves a detail of ROS service request.
+ *
+ * @param service name of service:
+ * @param callback - function with params:
+ *   * type - String of the service type
+ */
+Ros.prototype.getServiceRequestDetails = function(type, callback, failedCallback) {
+  var serviceTypeClient = new Service({
+    ros : this,
+    name : '/rosapi/service_request_details',
+    serviceType : 'rosapi/ServiceRequestDetails'
+  });
+  var request = new ServiceRequest({
+    type: type
+  });
+
+  if (typeof failedCallback === 'function'){
+    serviceTypeClient.callService(request,
+      function(result) {
+        callback(result);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    serviceTypeClient.callService(request, function(result) {
+      callback(result);
+    });
+  }
+};
+
+/**
+ * Retrieves a detail of ROS service request.
+ *
+ * @param service name of service:
+ * @param callback - function with params:
+ *   * type - String of the service type
+ */
+Ros.prototype.getServiceResponseDetails = function(type, callback, failedCallback) {
+  var serviceTypeClient = new Service({
+    ros : this,
+    name : '/rosapi/service_response_details',
+    serviceType : 'rosapi/ServiceResponseDetails'
+  });
+  var request = new ServiceRequest({
+    type: type
+  });
+
+  if (typeof failedCallback === 'function'){
+    serviceTypeClient.callService(request,
+      function(result) {
+        callback(result);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    serviceTypeClient.callService(request, function(result) {
+      callback(result);
+    });
+  }
+};
+
+/**
+ * Retrieves list of active node names in ROS.
+ *
+ * @param callback - function with the following params:
+ *   * nodes - array of node names
+ */
+Ros.prototype.getNodes = function(callback, failedCallback) {
+  var nodesClient = new Service({
+    ros : this,
+    name : '/rosapi/nodes',
+    serviceType : 'rosapi/Nodes'
+  });
+
+  var request = new ServiceRequest();
+  if (typeof failedCallback === 'function'){
+    nodesClient.callService(request,
+      function(result) {
+        callback(result.nodes);
+      },
+      function(message) {
+        failedCallback(message);
+      }
+    );
+  }else{
+    nodesClient.callService(request, function(result) {
+      callback(result.nodes);
+    });
+  }
+};
+
+/**
+  * Retrieves list subscribed topics, publishing topics and services of a specific node
+  *
+  * @param node name of the node:
+  * @param callback - function with params:
+  *   * publications - array of published topic names
+  *   * subscriptions - array of subscribed topic names
+  *   * services - array of service names hosted
+  */
+Ros.prototype.getNodeDetails = function(node, callback, failedCallback) {
+  var nodesClient = new Service({
+    ros : this,
+    name : '/rosapi/node_details',
+    serviceType : 'rosapi/NodeDetails'
+  });
+
+  var request = new ServiceRequest({
+    node: node
+  });
+  if (typeof failedCallback === 'function'){
+    nodesClient.callService(request,
+      function(result) {
+        callback(result.subscribing, result.publishing, result.services);
+      },
+      function(message) {
+        failedCallback(message);
+      }
+    );
+  } else {
+    nodesClient.callService(request, function(result) {
+      callback(result);
+    });
+  }
+};
+
+/**
+ * Retrieves list of param names from the ROS Parameter Server.
+ *
+ * @param callback function with params:
+ *  * params - array of param names.
+ */
+Ros.prototype.getParams = function(callback, failedCallback) {
+  var paramsClient = new Service({
+    ros : this,
+    name : '/rosapi/get_param_names',
+    serviceType : 'rosapi/GetParamNames'
+  });
+  var request = new ServiceRequest();
+  if (typeof failedCallback === 'function'){
+    paramsClient.callService(request,
+      function(result) {
+        callback(result.names);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    paramsClient.callService(request, function(result) {
+      callback(result.names);
+    });
+  }
+};
+
+/**
+ * Retrieves a type of ROS topic.
+ *
+ * @param topic name of the topic:
+ * @param callback - function with params:
+ *   * type - String of the topic type
+ */
+Ros.prototype.getTopicType = function(topic, callback, failedCallback) {
+  var topicTypeClient = new Service({
+    ros : this,
+    name : '/rosapi/topic_type',
+    serviceType : 'rosapi/TopicType'
+  });
+  var request = new ServiceRequest({
+    topic: topic
+  });
+
+  if (typeof failedCallback === 'function'){
+    topicTypeClient.callService(request,
+      function(result) {
+        callback(result.type);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    topicTypeClient.callService(request, function(result) {
+      callback(result.type);
+    });
+  }
+};
+
+/**
+ * Retrieves a type of ROS service.
+ *
+ * @param service name of service:
+ * @param callback - function with params:
+ *   * type - String of the service type
+ */
+Ros.prototype.getServiceType = function(service, callback, failedCallback) {
+  var serviceTypeClient = new Service({
+    ros : this,
+    name : '/rosapi/service_type',
+    serviceType : 'rosapi/ServiceType'
+  });
+  var request = new ServiceRequest({
+    service: service
+  });
+
+  if (typeof failedCallback === 'function'){
+    serviceTypeClient.callService(request,
+      function(result) {
+        callback(result.type);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    serviceTypeClient.callService(request, function(result) {
+      callback(result.type);
+    });
+  }
+};
+
+/**
+ * Retrieves a detail of ROS message.
+ *
+ * @param callback - function with params:
+ *   * details - Array of the message detail
+ * @param message - String of a topic type
+ */
+Ros.prototype.getMessageDetails = function(message, callback, failedCallback) {
+  var messageDetailClient = new Service({
+    ros : this,
+    name : '/rosapi/message_details',
+    serviceType : 'rosapi/MessageDetails'
+  });
+  var request = new ServiceRequest({
+    type: message
+  });
+
+  if (typeof failedCallback === 'function'){
+    messageDetailClient.callService(request,
+      function(result) {
+        callback(result.typedefs);
+      },
+      function(message){
+        failedCallback(message);
+      }
+    );
+  }else{
+    messageDetailClient.callService(request, function(result) {
+      callback(result.typedefs);
+    });
+  }
+};
+
+/**
+ * Decode a typedefs into a dictionary like `rosmsg show foo/bar`
+ *
+ * @param defs - array of type_def dictionary
+ */
+Ros.prototype.decodeTypeDefs = function(defs) {
+  var that = this;
+
+  // calls itself recursively to resolve type definition using hints.
+  var decodeTypeDefsRec = function(theType, hints) {
+    var typeDefDict = {};
+    for (var i = 0; i < theType.fieldnames.length; i++) {
+      var arrayLen = theType.fieldarraylen[i];
+      var fieldName = theType.fieldnames[i];
+      var fieldType = theType.fieldtypes[i];
+      if (fieldType.indexOf('/') === -1) { // check the fieldType includes '/' or not
+        if (arrayLen === -1) {
+          typeDefDict[fieldName] = fieldType;
+        }
+        else {
+          typeDefDict[fieldName] = [fieldType];
+        }
+      }
+      else {
+        // lookup the name
+        var sub = false;
+        for (var j = 0; j < hints.length; j++) {
+          if (hints[j].type.toString() === fieldType.toString()) {
+            sub = hints[j];
+            break;
+          }
+        }
+        if (sub) {
+          var subResult = decodeTypeDefsRec(sub, hints);
+          if (arrayLen === -1) {
+          }
+          else {
+            typeDefDict[fieldName] = [subResult];
+          }
+        }
+        else {
+          that.emit('error', 'Cannot find ' + fieldType + ' in decodeTypeDefs');
+        }
+      }
+    }
+    return typeDefDict;
+  };
+
+  return decodeTypeDefsRec(defs[0], defs);
+};
+
+
+module.exports = Ros;
+
+},{"./Service":13,"./ServiceRequest":14,"./SocketAdapter.js":16,"eventemitter2":1,"object-assign":2,"ws":39}],13:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author Brandon Alexander - baalexander@gmail.com
+ */
+
+var ServiceResponse = require('./ServiceResponse');
+var ServiceRequest = require('./ServiceRequest');
+var EventEmitter2 = require('eventemitter2').EventEmitter2;
+
+/**
+ * A ROS service client.
+ *
+ * @constructor
+ * @params options - possible keys include:
+ *   * ros - the ROSLIB.Ros connection handle
+ *   * name - the service name, like /add_two_ints
+ *   * serviceType - the service type, like 'rospy_tutorials/AddTwoInts'
+ */
+function Service(options) {
+  options = options || {};
+  this.ros = options.ros;
+  this.name = options.name;
+  this.serviceType = options.serviceType;
+  this.isAdvertised = false;
+
+  this._serviceCallback = null;
+}
+Service.prototype.__proto__ = EventEmitter2.prototype;
+/**
+ * Calls the service. Returns the service response in the callback.
+ *
+ * @param request - the ROSLIB.ServiceRequest to send
+ * @param callback - function with params:
+ *   * response - the response from the service request
+ * @param failedCallback - the callback function when the service call failed (optional). Params:
+ *   * error - the error message reported by ROS
+ */
+Service.prototype.callService = function(request, callback, failedCallback) {
+  if (this.isAdvertised) {
+    return;
+  }
+
+  var serviceCallId = 'call_service:' + this.name + ':' + (++this.ros.idCounter);
+
+  if (callback || failedCallback) {
+    this.ros.once(serviceCallId, function(message) {
+      if (message.result !== undefined && message.result === false) {
+        if (typeof failedCallback === 'function') {
+          failedCallback(message.values);
+        }
+      } else if (typeof callback === 'function') {
+        callback(new ServiceResponse(message.values));
+      }
+    });
+  }
+
+  var call = {
+    op : 'call_service',
+    id : serviceCallId,
+    service : this.name,
+    args : request
+  };
+  this.ros.callOnConnection(call);
+};
+
+/**
+ * Every time a message is published for the given topic, the callback
+ * will be called with the message object.
+ *
+ * @param callback - function with the following params:
+ *   * message - the published message
+ */
+Service.prototype.advertise = function(callback) {
+  if (this.isAdvertised || typeof callback !== 'function') {
+    return;
+  }
+
+  this._serviceCallback = callback;
+  this.ros.on(this.name, this._serviceResponse.bind(this));
+  this.ros.callOnConnection({
+    op: 'advertise_service',
+    type: this.serviceType,
+    service: this.name
+  });
+  this.isAdvertised = true;
+};
+
+Service.prototype.unadvertise = function() {
+  if (!this.isAdvertised) {
+    return;
+  }
+  this.ros.callOnConnection({
+    op: 'unadvertise_service',
+    service: this.name
+  });
+  this.isAdvertised = false;
+};
+
+Service.prototype._serviceResponse = function(rosbridgeRequest) {
+  var response = {};
+  var success = this._serviceCallback(rosbridgeRequest.args, response);
+
+  var call = {
+    op: 'service_response',
+    service: this.name,
+    values: new ServiceResponse(response),
+    result: success
+  };
+
+  if (rosbridgeRequest.id) {
+    call.id = rosbridgeRequest.id;
+  }
+
+  this.ros.callOnConnection(call);
+};
+
+module.exports = Service;
+},{"./ServiceRequest":14,"./ServiceResponse":15,"eventemitter2":1}],14:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author Brandon Alexander - balexander@willowgarage.com
+ */
+
+var assign = require('object-assign');
+
+/**
+ * A ServiceRequest is passed into the service call.
+ *
+ * @constructor
+ * @param values - object matching the fields defined in the .srv definition file
+ */
+function ServiceRequest(values) {
+  assign(this, values);
+}
+
+module.exports = ServiceRequest;
+},{"object-assign":2}],15:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author Brandon Alexander - balexander@willowgarage.com
+ */
+
+var assign = require('object-assign');
+
+/**
+ * A ServiceResponse is returned from the service call.
+ *
+ * @constructor
+ * @param values - object matching the fields defined in the .srv definition file
+ */
+function ServiceResponse(values) {
+  assign(this, values);
+}
+
+module.exports = ServiceResponse;
+},{"object-assign":2}],16:[function(require,module,exports){
+/**
+ * Socket event handling utilities for handling events on either
+ * WebSocket and TCP sockets
+ *
+ * Note to anyone reviewing this code: these functions are called
+ * in the context of their parent object, unless bound
+ * @fileOverview
+ */
+'use strict';
+
+var decompressPng = require('../util/decompressPng');
+var WebSocket = require('ws');
+var BSON = null;
+if(typeof bson !== 'undefined'){
+    BSON = bson().BSON;
+}
+
+/**
+ * Events listeners for a WebSocket or TCP socket to a JavaScript
+ * ROS Client. Sets up Messages for a given topic to trigger an
+ * event on the ROS client.
+ *
+ * @namespace SocketAdapter
+ * @private
+ */
+function SocketAdapter(client) {
+  function handleMessage(message) {
+    if (message.op === 'publish') {
+      client.emit(message.topic, message.msg);
+    } else if (message.op === 'service_response') {
+      client.emit(message.id, message);
+    } else if (message.op === 'call_service') {
+      client.emit(message.service, message);
+    } else if(message.op === 'status'){
+      if(message.id){
+        client.emit('status:'+message.id, message);
+      } else {
+        client.emit('status', message);
+      }
+    }
+  }
+
+  function handlePng(message, callback) {
+    if (message.op === 'png') {
+      decompressPng(message.data, callback);
+    } else {
+      callback(message);
+    }
+  }
+
+  function decodeBSON(data, callback) {
+    if (!BSON) {
+      throw 'Cannot process BSON encoded message without BSON header.';
+    }
+    var reader = new FileReader();
+    reader.onload  = function() {
+      var uint8Array = new Uint8Array(this.result);
+      var msg = BSON.deserialize(uint8Array);
+      callback(msg);
+    };
+    reader.readAsArrayBuffer(data);
+  }
+
+  return {
+    /**
+     * Emits a 'connection' event on WebSocket connection.
+     *
+     * @param event - the argument to emit with the event.
+     * @memberof SocketAdapter
+     */
+    onopen: function onOpen(event) {
+      client.isConnected = true;
+      client.emit('connection', event);
+    },
+
+    /**
+     * Emits a 'close' event on WebSocket disconnection.
+     *
+     * @param event - the argument to emit with the event.
+     * @memberof SocketAdapter
+     */
+    onclose: function onClose(event) {
+      client.isConnected = false;
+      client.emit('close', event);
+    },
+
+    /**
+     * Emits an 'error' event whenever there was an error.
+     *
+     * @param event - the argument to emit with the event.
+     * @memberof SocketAdapter
+     */
+    onerror: function onError(event) {
+      client.emit('error', event);
+    },
+
+    /**
+     * Parses message responses from rosbridge and sends to the appropriate
+     * topic, service, or param.
+     *
+     * @param message - the raw JSON message from rosbridge.
+     * @memberof SocketAdapter
+     */
+    onmessage: function onMessage(data) {
+      if (typeof Blob !== 'undefined' && data.data instanceof Blob) {
+        decodeBSON(data.data, function (message) {
+          handlePng(message, handleMessage);
+        });
+      } else {
+        var message = JSON.parse(typeof data === 'string' ? data : data.data);
+        handlePng(message, handleMessage);
+      }
+    }
+  };
+}
+
+module.exports = SocketAdapter;
+
+},{"../util/decompressPng":41,"ws":39}],17:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author Brandon Alexander - baalexander@gmail.com
+ */
+
+var EventEmitter2 = require('eventemitter2').EventEmitter2;
+var Message = require('./Message');
+
+/**
+ * Publish and/or subscribe to a topic in ROS.
+ *
+ * Emits the following events:
+ *  * 'warning' - if there are any warning during the Topic creation
+ *  * 'message' - the message data from rosbridge
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *   * ros - the ROSLIB.Ros connection handle
+ *   * name - the topic name, like /cmd_vel
+ *   * messageType - the message type, like 'std_msgs/String'
+ *   * compression - the type of compression to use, like 'png'
+ *   * throttle_rate - the rate (in ms in between messages) at which to throttle the topics
+ *   * queue_size - the queue created at bridge side for re-publishing webtopics (defaults to 100)
+ *   * latch - latch the topic when publishing
+ *   * queue_length - the queue length at bridge side used when subscribing (defaults to 0, no queueing).
+ *   * reconnect_on_close - the flag to enable resubscription and readvertisement on close event(defaults to true).
+ */
+function Topic(options) {
+  options = options || {};
+  this.ros = options.ros;
+  this.name = options.name;
+  this.messageType = options.messageType;
+  this.isAdvertised = false;
+  this.compression = options.compression || 'none';
+  this.throttle_rate = options.throttle_rate || 0;
+  this.latch = options.latch || false;
+  this.queue_size = options.queue_size || 100;
+  this.queue_length = options.queue_length || 0;
+  this.reconnect_on_close = options.reconnect_on_close || true;
+
+  // Check for valid compression types
+  if (this.compression && this.compression !== 'png' &&
+    this.compression !== 'none') {
+    this.emit('warning', this.compression +
+      ' compression is not supported. No compression will be used.');
+  }
+
+  // Check if throttle rate is negative
+  if (this.throttle_rate < 0) {
+    this.emit('warning', this.throttle_rate + ' is not allowed. Set to 0');
+    this.throttle_rate = 0;
+  }
+
+  var that = this;
+  if (this.reconnect_on_close) {
+    this.callForSubscribeAndAdvertise = function(message) {
+      that.ros.callOnConnection(message);
+
+      that.waitForReconnect = false;
+      that.reconnectFunc = function() {
+        if(!that.waitForReconnect) {
+          that.waitForReconnect = true;
+          that.ros.callOnConnection(message);
+          that.ros.once('connection', function() {
+            that.waitForReconnect = false;
+          });
+        }
+      };
+      that.ros.on('close', that.reconnectFunc);
+    };
+  }
+  else {
+    this.callForSubscribeAndAdvertise = this.ros.callOnConnection;
+  }
+
+  this._messageCallback = function(data) {
+    that.emit('message', new Message(data));
+  };
+}
+Topic.prototype.__proto__ = EventEmitter2.prototype;
+
+/**
+ * Every time a message is published for the given topic, the callback
+ * will be called with the message object.
+ *
+ * @param callback - function with the following params:
+ *   * message - the published message
+ */
+Topic.prototype.subscribe = function(callback) {
+  if (typeof callback === 'function') {
+    this.on('message', callback);
+  }
+
+  if (this.subscribeId) { return; }
+  this.ros.on(this.name, this._messageCallback);
+  this.subscribeId = 'subscribe:' + this.name + ':' + (++this.ros.idCounter);
+
+  this.callForSubscribeAndAdvertise({
+    op: 'subscribe',
+    id: this.subscribeId,
+    type: this.messageType,
+    topic: this.name,
+    compression: this.compression,
+    throttle_rate: this.throttle_rate,
+    queue_length: this.queue_length
+  });
+};
+
+/**
+ * Unregisters as a subscriber for the topic. Unsubscribing stop remove
+ * all subscribe callbacks. To remove a call back, you must explicitly
+ * pass the callback function in.
+ *
+ * @param callback - the optional callback to unregister, if
+ *     * provided and other listeners are registered the topic won't
+ *     * unsubscribe, just stop emitting to the passed listener
+ */
+Topic.prototype.unsubscribe = function(callback) {
+  if (callback) {
+    this.off('message', callback);
+    // If there is any other callbacks still subscribed don't unsubscribe
+    if (this.listeners('message').length) { return; }
+  }
+  if (!this.subscribeId) { return; }
+  // Note: Don't call this.removeAllListeners, allow client to handle that themselves
+  this.ros.off(this.name, this._messageCallback);
+  if(this.reconnect_on_close) {
+    this.ros.off('close', this.reconnectFunc);
+  }
+  this.emit('unsubscribe');
+  this.ros.callOnConnection({
+    op: 'unsubscribe',
+    id: this.subscribeId,
+    topic: this.name
+  });
+  this.subscribeId = null;
+};
+
+
+/**
+ * Registers as a publisher for the topic.
+ */
+Topic.prototype.advertise = function() {
+  if (this.isAdvertised) {
+    return;
+  }
+  this.advertiseId = 'advertise:' + this.name + ':' + (++this.ros.idCounter);
+  this.callForSubscribeAndAdvertise({
+    op: 'advertise',
+    id: this.advertiseId,
+    type: this.messageType,
+    topic: this.name,
+    latch: this.latch,
+    queue_size: this.queue_size
+  });
+  this.isAdvertised = true;
+
+  if(!this.reconnect_on_close) {
+    var that = this;
+    this.ros.on('close', function() {
+      that.isAdvertised = false;
+    });
+  }
+};
+
+/**
+ * Unregisters as a publisher for the topic.
+ */
+Topic.prototype.unadvertise = function() {
+  if (!this.isAdvertised) {
+    return;
+  }
+  if(this.reconnect_on_close) {
+    this.ros.off('close', this.reconnectFunc);
+  }
+  this.emit('unadvertise');
+  this.ros.callOnConnection({
+    op: 'unadvertise',
+    id: this.advertiseId,
+    topic: this.name
+  });
+  this.isAdvertised = false;
+};
+
+/**
+ * Publish the message.
+ *
+ * @param message - A ROSLIB.Message object.
+ */
+Topic.prototype.publish = function(message) {
+  if (!this.isAdvertised) {
+    this.advertise();
+  }
+
+  this.ros.idCounter++;
+  var call = {
+    op: 'publish',
+    id: 'publish:' + this.name + ':' + this.ros.idCounter,
+    topic: this.name,
+    msg: message,
+    latch: this.latch
+  };
+  this.ros.callOnConnection(call);
+};
+
+module.exports = Topic;
+
+},{"./Message":10,"eventemitter2":1}],18:[function(require,module,exports){
+var mixin = require('../mixin');
+
+var core = module.exports = {
+    Ros: require('./Ros'),
+    Topic: require('./Topic'),
+    Message: require('./Message'),
+    Param: require('./Param'),
+    Service: require('./Service'),
+    ServiceRequest: require('./ServiceRequest'),
+    ServiceResponse: require('./ServiceResponse')
+};
+
+mixin(core.Ros, ['Param', 'Service', 'Topic'], core);
+
+},{"../mixin":24,"./Message":10,"./Param":11,"./Ros":12,"./Service":13,"./ServiceRequest":14,"./ServiceResponse":15,"./Topic":17}],19:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+var Vector3 = require('./Vector3');
+var Quaternion = require('./Quaternion');
+
+/**
+ * A Pose in 3D space. Values are copied into this object.
+ *
+ *  @constructor
+ *  @param options - object with following keys:
+ *   * position - the Vector3 describing the position
+ *   * orientation - the ROSLIB.Quaternion describing the orientation
+ */
+function Pose(options) {
+  options = options || {};
+  // copy the values into this object if they exist
+  this.position = new Vector3(options.position);
+  this.orientation = new Quaternion(options.orientation);
+}
+
+/**
+ * Apply a transform against this pose.
+ *
+ * @param tf the transform
+ */
+Pose.prototype.applyTransform = function(tf) {
+  this.position.multiplyQuaternion(tf.rotation);
+  this.position.add(tf.translation);
+  var tmp = tf.rotation.clone();
+  tmp.multiply(this.orientation);
+  this.orientation = tmp;
+};
+
+/**
+ * Clone a copy of this pose.
+ *
+ * @returns the cloned pose
+ */
+Pose.prototype.clone = function() {
+  return new Pose(this);
+};
+
+module.exports = Pose;
+},{"./Quaternion":20,"./Vector3":22}],20:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+/**
+ * A Quaternion.
+ *
+ *  @constructor
+ *  @param options - object with following keys:
+ *   * x - the x value
+ *   * y - the y value
+ *   * z - the z value
+ *   * w - the w value
+ */
+function Quaternion(options) {
+  options = options || {};
+  this.x = options.x || 0;
+  this.y = options.y || 0;
+  this.z = options.z || 0;
+  this.w = (typeof options.w === 'number') ? options.w : 1;
+}
+
+/**
+ * Perform a conjugation on this quaternion.
+ */
+Quaternion.prototype.conjugate = function() {
+  this.x *= -1;
+  this.y *= -1;
+  this.z *= -1;
+};
+
+/**
+ * Return the norm of this quaternion.
+ */
+Quaternion.prototype.norm = function() {
+  return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w);
+};
+
+/**
+ * Perform a normalization on this quaternion.
+ */
+Quaternion.prototype.normalize = function() {
+  var l = Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w);
+  if (l === 0) {
+    this.x = 0;
+    this.y = 0;
+    this.z = 0;
+    this.w = 1;
+  } else {
+    l = 1 / l;
+    this.x = this.x * l;
+    this.y = this.y * l;
+    this.z = this.z * l;
+    this.w = this.w * l;
+  }
+};
+
+/**
+ * Convert this quaternion into its inverse.
+ */
+Quaternion.prototype.invert = function() {
+  this.conjugate();
+  this.normalize();
+};
+
+/**
+ * Set the values of this quaternion to the product of itself and the given quaternion.
+ *
+ * @param q the quaternion to multiply with
+ */
+Quaternion.prototype.multiply = function(q) {
+  var newX = this.x * q.w + this.y * q.z - this.z * q.y + this.w * q.x;
+  var newY = -this.x * q.z + this.y * q.w + this.z * q.x + this.w * q.y;
+  var newZ = this.x * q.y - this.y * q.x + this.z * q.w + this.w * q.z;
+  var newW = -this.x * q.x - this.y * q.y - this.z * q.z + this.w * q.w;
+  this.x = newX;
+  this.y = newY;
+  this.z = newZ;
+  this.w = newW;
+};
+
+/**
+ * Clone a copy of this quaternion.
+ *
+ * @returns the cloned quaternion
+ */
+Quaternion.prototype.clone = function() {
+  return new Quaternion(this);
+};
+
+module.exports = Quaternion;
+
+},{}],21:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+var Vector3 = require('./Vector3');
+var Quaternion = require('./Quaternion');
+
+/**
+ * A Transform in 3-space. Values are copied into this object.
+ *
+ *  @constructor
+ *  @param options - object with following keys:
+ *   * translation - the Vector3 describing the translation
+ *   * rotation - the ROSLIB.Quaternion describing the rotation
+ */
+function Transform(options) {
+  options = options || {};
+  // Copy the values into this object if they exist
+  this.translation = new Vector3(options.translation);
+  this.rotation = new Quaternion(options.rotation);
+}
+
+/**
+ * Clone a copy of this transform.
+ *
+ * @returns the cloned transform
+ */
+Transform.prototype.clone = function() {
+  return new Transform(this);
+};
+
+module.exports = Transform;
+},{"./Quaternion":20,"./Vector3":22}],22:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+/**
+ * A 3D vector.
+ *
+ *  @constructor
+ *  @param options - object with following keys:
+ *   * x - the x value
+ *   * y - the y value
+ *   * z - the z value
+ */
+function Vector3(options) {
+  options = options || {};
+  this.x = options.x || 0;
+  this.y = options.y || 0;
+  this.z = options.z || 0;
+}
+
+/**
+ * Set the values of this vector to the sum of itself and the given vector.
+ *
+ * @param v the vector to add with
+ */
+Vector3.prototype.add = function(v) {
+  this.x += v.x;
+  this.y += v.y;
+  this.z += v.z;
+};
+
+/**
+ * Set the values of this vector to the difference of itself and the given vector.
+ *
+ * @param v the vector to subtract with
+ */
+Vector3.prototype.subtract = function(v) {
+  this.x -= v.x;
+  this.y -= v.y;
+  this.z -= v.z;
+};
+
+/**
+ * Multiply the given Quaternion with this vector.
+ *
+ * @param q - the quaternion to multiply with
+ */
+Vector3.prototype.multiplyQuaternion = function(q) {
+  var ix = q.w * this.x + q.y * this.z - q.z * this.y;
+  var iy = q.w * this.y + q.z * this.x - q.x * this.z;
+  var iz = q.w * this.z + q.x * this.y - q.y * this.x;
+  var iw = -q.x * this.x - q.y * this.y - q.z * this.z;
+  this.x = ix * q.w + iw * -q.x + iy * -q.z - iz * -q.y;
+  this.y = iy * q.w + iw * -q.y + iz * -q.x - ix * -q.z;
+  this.z = iz * q.w + iw * -q.z + ix * -q.y - iy * -q.x;
+};
+
+/**
+ * Clone a copy of this vector.
+ *
+ * @returns the cloned vector
+ */
+Vector3.prototype.clone = function() {
+  return new Vector3(this);
+};
+
+module.exports = Vector3;
+},{}],23:[function(require,module,exports){
+module.exports = {
+    Pose: require('./Pose'),
+    Quaternion: require('./Quaternion'),
+    Transform: require('./Transform'),
+    Vector3: require('./Vector3')
+};
+
+},{"./Pose":19,"./Quaternion":20,"./Transform":21,"./Vector3":22}],24:[function(require,module,exports){
+/**
+ * Mixin a feature to the core/Ros prototype.
+ * For example, mixin(Ros, ['Topic'], {Topic: <Topic>})
+ * will add a topic bound to any Ros instances so a user
+ * can call `var topic = ros.Topic({name: '/foo'});`
+ *
+ * @author Graeme Yeates - github.com/megawac
+ */
+module.exports = function(Ros, classes, features) {
+    classes.forEach(function(className) {
+        var Class = features[className];
+        Ros.prototype[className] = function(options) {
+            options.ros = this;
+            return new Class(options);
+        };
+    });
+};
+
+},{}],25:[function(require,module,exports){
+/**
+ * @fileoverview
+ * @author David Gossow - dgossow@willowgarage.com
+ */
+
+var ActionClient = require('../actionlib/ActionClient');
+var Goal = require('../actionlib/Goal');
+
+var Service = require('../core/Service.js');
+var ServiceRequest = require('../core/ServiceRequest.js');
+
+var Transform = require('../math/Transform');
+
+/**
+ * A TF Client that listens to TFs from tf2_web_republisher.
+ *
+ *  @constructor
+ *  @param options - object with following keys:
+ *   * ros - the ROSLIB.Ros connection handle
+ *   * fixedFrame - the fixed frame, like /base_link
+ *   * angularThres - the angular threshold for the TF republisher
+ *   * transThres - the translation threshold for the TF republisher
+ *   * rate - the rate for the TF republisher
+ *   * updateDelay - the time (in ms) to wait after a new subscription
+ *                   to update the TF republisher's list of TFs
+ *   * topicTimeout - the timeout parameter for the TF republisher
+ *   * serverName (optional) - the name of the tf2_web_republisher server
+ *   * repubServiceName (optional) - the name of the republish_tfs service (non groovy compatibility mode only)
+ *   																 default: '/republish_tfs'
+ */
+function TFClient(options) {
+  options = options || {};
+  this.ros = options.ros;
+  this.fixedFrame = options.fixedFrame || '/base_link';
+  this.angularThres = options.angularThres || 2.0;
+  this.transThres = options.transThres || 0.01;
+  this.rate = options.rate || 10.0;
+  this.updateDelay = options.updateDelay || 50;
+  var seconds = options.topicTimeout || 2.0;
+  var secs = Math.floor(seconds);
+  var nsecs = Math.floor((seconds - secs) * 1000000000);
+  this.topicTimeout = {
+    secs: secs,
+    nsecs: nsecs
+  };
+  this.serverName = options.serverName || '/tf2_web_republisher';
+  this.repubServiceName = options.repubServiceName || '/republish_tfs';
+
+  this.currentGoal = false;
+  this.currentTopic = false;
+  this.frameInfos = {};
+  this.republisherUpdateRequested = false;
+
+  // Create an Action client
+  this.actionClient = this.ros.ActionClient({
+    serverName : this.serverName,
+    actionName : 'tf2_web_republisher/TFSubscriptionAction',
+    omitStatus : true,
+    omitResult : true
+  });
+
+  // Create a Service client
+  this.serviceClient = this.ros.Service({
+    name: this.repubServiceName,
+    serviceType: 'tf2_web_republisher/RepublishTFs'
+  });
+}
+
+/**
+ * Process the incoming TF message and send them out using the callback
+ * functions.
+ *
+ * @param tf - the TF message from the server
+ */
+TFClient.prototype.processTFArray = function(tf) {
+  var that = this;
+  tf.transforms.forEach(function(transform) {
+    var frameID = transform.child_frame_id;
+    if (frameID[0] === '/')
+    {
+      frameID = frameID.substring(1);
+    }
+    var info = this.frameInfos[frameID];
+    if (info) {
+      info.transform = new Transform({
+        translation : transform.transform.translation,
+        rotation : transform.transform.rotation
+      });
+      info.cbs.forEach(function(cb) {
+        cb(info.transform);
+      });
+    }
+  }, this);
+};
+
+/**
+ * Create and send a new goal (or service request) to the tf2_web_republisher
+ * based on the current list of TFs.
+ */
+TFClient.prototype.updateGoal = function() {
+  var goalMessage = {
+    source_frames : Object.keys(this.frameInfos),
+    target_frame : this.fixedFrame,
+    angular_thres : this.angularThres,
+    trans_thres : this.transThres,
+    rate : this.rate
+  };
+
+  // if we're running in groovy compatibility mode (the default)
+  // then use the action interface to tf2_web_republisher
+  if(this.ros.groovyCompatibility) {
+    if (this.currentGoal) {
+      this.currentGoal.cancel();
+    }
+    this.currentGoal = new Goal({
+      actionClient : this.actionClient,
+      goalMessage : goalMessage
+    });
+
+    this.currentGoal.on('feedback', this.processTFArray.bind(this));
+    this.currentGoal.send();
+  }
+  else {
+    // otherwise, use the service interface
+    // The service interface has the same parameters as the action,
+    // plus the timeout
+    goalMessage.timeout = this.topicTimeout;
+    var request = new ServiceRequest(goalMessage);
+
+    this.serviceClient.callService(request, this.processResponse.bind(this));
+  }
+
+  this.republisherUpdateRequested = false;
+};
+
+/**
+ * Process the service response and subscribe to the tf republisher
+ * topic
+ *
+ * @param response the service response containing the topic name
+ */
+TFClient.prototype.processResponse = function(response) {
+  // if we subscribed to a topic before, unsubscribe so
+  // the republisher stops publishing it
+  if (this.currentTopic) {
+    this.currentTopic.unsubscribe();
+  }
+
+  this.currentTopic = this.ros.Topic({
+    name: response.topic_name,
+    messageType: 'tf2_web_republisher/TFArray'
+  });
+  this.currentTopic.subscribe(this.processTFArray.bind(this));
+};
+
+/**
+ * Subscribe to the given TF frame.
+ *
+ * @param frameID - the TF frame to subscribe to
+ * @param callback - function with params:
+ *   * transform - the transform data
+ */
+TFClient.prototype.subscribe = function(frameID, callback) {
+  // remove leading slash, if it's there
+  if (frameID[0] === '/')
+  {
+    frameID = frameID.substring(1);
+  }
+  // if there is no callback registered for the given frame, create emtpy callback list
+  if (!this.frameInfos[frameID]) {
+    this.frameInfos[frameID] = {
+      cbs: []
+    };
+    if (!this.republisherUpdateRequested) {
+      setTimeout(this.updateGoal.bind(this), this.updateDelay);
+      this.republisherUpdateRequested = true;
+    }
+  }
+  // if we already have a transform, call back immediately
+  else if (this.frameInfos[frameID].transform) {
+    callback(this.frameInfos[frameID].transform);
+  }
+  this.frameInfos[frameID].cbs.push(callback);
+};
+
+/**
+ * Unsubscribe from the given TF frame.
+ *
+ * @param frameID - the TF frame to unsubscribe from
+ * @param callback - the callback function to remove
+ */
+TFClient.prototype.unsubscribe = function(frameID, callback) {
+  // remove leading slash, if it's there
+  if (frameID[0] === '/')
+  {
+    frameID = frameID.substring(1);
+  }
+  var info = this.frameInfos[frameID];
+  for (var cbs = info && info.cbs || [], idx = cbs.length; idx--;) {
+    if (cbs[idx] === callback) {
+      cbs.splice(idx, 1);
+    }
+  }
+  if (!callback || cbs.length === 0) {
+    delete this.frameInfos[frameID];
+  }
+};
+
+/**
+ * Unsubscribe and unadvertise all topics associated with this TFClient.
+ */
+TFClient.prototype.dispose = function() {
+  this.actionClient.dispose();
+  if (this.currentTopic) {
+    this.currentTopic.unsubscribe();
+  }
+};
+
+module.exports = TFClient;
+
+},{"../actionlib/ActionClient":5,"../actionlib/Goal":7,"../core/Service.js":13,"../core/ServiceRequest.js":14,"../math/Transform":21}],26:[function(require,module,exports){
+var Ros = require('../core/Ros');
+var mixin = require('../mixin');
+
+var tf = module.exports = {
+    TFClient: require('./TFClient')
+};
+
+mixin(Ros, ['TFClient'], tf);
+},{"../core/Ros":12,"../mixin":24,"./TFClient":25}],27:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var Vector3 = require('../math/Vector3');
+var UrdfTypes = require('./UrdfTypes');
+
+/**
+ * A Box element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfBox(options) {
+  this.dimension = null;
+  this.type = UrdfTypes.URDF_BOX;
+
+  // Parse the xml string
+  var xyz = options.xml.getAttribute('size').split(' ');
+  this.dimension = new Vector3({
+    x : parseFloat(xyz[0]),
+    y : parseFloat(xyz[1]),
+    z : parseFloat(xyz[2])
+  });
+}
+
+module.exports = UrdfBox;
+},{"../math/Vector3":22,"./UrdfTypes":36}],28:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+/**
+ * A Color element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfColor(options) {
+  // Parse the xml string
+  var rgba = options.xml.getAttribute('rgba').split(' ');
+  this.r = parseFloat(rgba[0]);
+  this.g = parseFloat(rgba[1]);
+  this.b = parseFloat(rgba[2]);
+  this.a = parseFloat(rgba[3]);
+}
+
+module.exports = UrdfColor;
+},{}],29:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var UrdfTypes = require('./UrdfTypes');
+
+/**
+ * A Cylinder element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfCylinder(options) {
+  this.type = UrdfTypes.URDF_CYLINDER;
+  this.length = parseFloat(options.xml.getAttribute('length'));
+  this.radius = parseFloat(options.xml.getAttribute('radius'));
+}
+
+module.exports = UrdfCylinder;
+},{"./UrdfTypes":36}],30:[function(require,module,exports){
+/**
+ * @fileOverview
+ * @author David V. Lu!!  davidvlu@gmail.com
+ */
+
+/**
+ * A Joint element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfJoint(options) {
+  this.name = options.xml.getAttribute('name');
+  this.type = options.xml.getAttribute('type');
+
+  var parents = options.xml.getElementsByTagName('parent');
+  if(parents.length > 0) {
+    this.parent = parents[0].getAttribute('link');
+  }
+
+  var children = options.xml.getElementsByTagName('child');
+  if(children.length > 0) {
+    this.child = children[0].getAttribute('link');
+  }
+
+  var limits = options.xml.getElementsByTagName('limit');
+  if (limits.length > 0) {
+    this.minval = parseFloat( limits[0].getAttribute('lower') );
+    this.maxval = parseFloat( limits[0].getAttribute('upper') );
+  }
+}
+
+module.exports = UrdfJoint;
+
+},{}],31:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var UrdfVisual = require('./UrdfVisual');
+
+/**
+ * A Link element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfLink(options) {
+  this.name = options.xml.getAttribute('name');
+  this.visuals = [];
+  var visuals = options.xml.getElementsByTagName('visual');
+
+  for( var i=0; i<visuals.length; i++ ) {
+    this.visuals.push( new UrdfVisual({
+      xml : visuals[i]
+    }) );
+  }
+}
+
+module.exports = UrdfLink;
+},{"./UrdfVisual":37}],32:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var UrdfColor = require('./UrdfColor');
+
+/**
+ * A Material element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfMaterial(options) {
+  this.textureFilename = null;
+  this.color = null;
+
+  this.name = options.xml.getAttribute('name');
+
+  // Texture
+  var textures = options.xml.getElementsByTagName('texture');
+  if (textures.length > 0) {
+    this.textureFilename = textures[0].getAttribute('filename');
+  }
+
+  // Color
+  var colors = options.xml.getElementsByTagName('color');
+  if (colors.length > 0) {
+    // Parse the RBGA string
+    this.color = new UrdfColor({
+      xml : colors[0]
+    });
+  }
+}
+
+UrdfMaterial.prototype.isLink = function() {
+  return this.color === null && this.textureFilename === null;
+};
+
+var assign = require('object-assign');
+
+UrdfMaterial.prototype.assign = function(obj) {
+    return assign(this, obj);
+};
+
+module.exports = UrdfMaterial;
+
+},{"./UrdfColor":28,"object-assign":2}],33:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var Vector3 = require('../math/Vector3');
+var UrdfTypes = require('./UrdfTypes');
+
+/**
+ * A Mesh element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfMesh(options) {
+  this.scale = null;
+
+  this.type = UrdfTypes.URDF_MESH;
+  this.filename = options.xml.getAttribute('filename');
+
+  // Check for a scale
+  var scale = options.xml.getAttribute('scale');
+  if (scale) {
+    // Get the XYZ
+    var xyz = scale.split(' ');
+    this.scale = new Vector3({
+      x : parseFloat(xyz[0]),
+      y : parseFloat(xyz[1]),
+      z : parseFloat(xyz[2])
+    });
+  }
+}
+
+module.exports = UrdfMesh;
+},{"../math/Vector3":22,"./UrdfTypes":36}],34:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var UrdfMaterial = require('./UrdfMaterial');
+var UrdfLink = require('./UrdfLink');
+var UrdfJoint = require('./UrdfJoint');
+var DOMParser = require('xmldom').DOMParser;
+
+// See https://developer.mozilla.org/docs/XPathResult#Constants
+var XPATH_FIRST_ORDERED_NODE_TYPE = 9;
+
+/**
+ * A URDF Model can be used to parse a given URDF into the appropriate elements.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ *  * string - the XML element to parse as a string
+ */
+function UrdfModel(options) {
+  options = options || {};
+  var xmlDoc = options.xml;
+  var string = options.string;
+  this.materials = {};
+  this.links = {};
+  this.joints = {};
+
+  // Check if we are using a string or an XML element
+  if (string) {
+    // Parse the string
+    var parser = new DOMParser();
+    xmlDoc = parser.parseFromString(string, 'text/xml');
+  }
+
+  // Initialize the model with the given XML node.
+  // Get the robot tag
+  var robotXml = xmlDoc.documentElement;
+
+  // Get the robot name
+  this.name = robotXml.getAttribute('name');
+
+  // Parse all the visual elements we need
+  for (var nodes = robotXml.childNodes, i = 0; i < nodes.length; i++) {
+    var node = nodes[i];
+    if (node.tagName === 'material') {
+      var material = new UrdfMaterial({
+        xml : node
+      });
+      // Make sure this is unique
+      if (this.materials[material.name] !== void 0) {
+        if( this.materials[material.name].isLink() ) {
+          this.materials[material.name].assign( material );
+        } else {
+          console.warn('Material ' + material.name + 'is not unique.');
+        }
+      } else {
+        this.materials[material.name] = material;
+      }
+    } else if (node.tagName === 'link') {
+      var link = new UrdfLink({
+        xml : node
+      });
+      // Make sure this is unique
+      if (this.links[link.name] !== void 0) {
+        console.warn('Link ' + link.name + ' is not unique.');
+      } else {
+        // Check for a material
+        for( var j=0; j<link.visuals.length; j++ )
+        {
+          var mat = link.visuals[j].material; 
+          if ( mat !== null ) {
+            if (this.materials[mat.name] !== void 0) {
+              link.visuals[j].material = this.materials[mat.name];
+            } else {
+              this.materials[mat.name] = mat;
+            }
+          }
+        }
+
+        // Add the link
+        this.links[link.name] = link;
+      }
+    } else if (node.tagName === 'joint') {
+      var joint = new UrdfJoint({
+        xml : node
+      });
+      this.joints[joint.name] = joint;
+    }
+  }
+}
+
+module.exports = UrdfModel;
+
+},{"./UrdfJoint":30,"./UrdfLink":31,"./UrdfMaterial":32,"xmldom":42}],35:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var UrdfTypes = require('./UrdfTypes');
+
+/**
+ * A Sphere element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfSphere(options) {
+  this.type = UrdfTypes.URDF_SPHERE;
+  this.radius = parseFloat(options.xml.getAttribute('radius'));
+}
+
+module.exports = UrdfSphere;
+},{"./UrdfTypes":36}],36:[function(require,module,exports){
+module.exports = {
+	URDF_SPHERE : 0,
+	URDF_BOX : 1,
+	URDF_CYLINDER : 2,
+	URDF_MESH : 3
+};
+
+},{}],37:[function(require,module,exports){
+/**
+ * @fileOverview 
+ * @author Benjamin Pitzer - ben.pitzer@gmail.com
+ * @author Russell Toris - rctoris@wpi.edu
+ */
+
+var Pose = require('../math/Pose');
+var Vector3 = require('../math/Vector3');
+var Quaternion = require('../math/Quaternion');
+
+var UrdfCylinder = require('./UrdfCylinder');
+var UrdfBox = require('./UrdfBox');
+var UrdfMaterial = require('./UrdfMaterial');
+var UrdfMesh = require('./UrdfMesh');
+var UrdfSphere = require('./UrdfSphere');
+
+/**
+ * A Visual element in a URDF.
+ *
+ * @constructor
+ * @param options - object with following keys:
+ *  * xml - the XML element to parse
+ */
+function UrdfVisual(options) {
+  var xml = options.xml;
+  this.origin = null;
+  this.geometry = null;
+  this.material = null;
+
+  // Origin
+  var origins = xml.getElementsByTagName('origin');
+  if (origins.length === 0) {
+    // use the identity as the default
+    this.origin = new Pose();
+  } else {
+    // Check the XYZ
+    var xyz = origins[0].getAttribute('xyz');
+    var position = new Vector3();
+    if (xyz) {
+      xyz = xyz.split(' ');
+      position = new Vector3({
+        x : parseFloat(xyz[0]),
+        y : parseFloat(xyz[1]),
+        z : parseFloat(xyz[2])
+      });
+    }
+
+    // Check the RPY
+    var rpy = origins[0].getAttribute('rpy');
+    var orientation = new Quaternion();
+    if (rpy) {
+      rpy = rpy.split(' ');
+      // Convert from RPY
+      var roll = parseFloat(rpy[0]);
+      var pitch = parseFloat(rpy[1]);
+      var yaw = parseFloat(rpy[2]);
+      var phi = roll / 2.0;
+      var the = pitch / 2.0;
+      var psi = yaw / 2.0;
+      var x = Math.sin(phi) * Math.cos(the) * Math.cos(psi) - Math.cos(phi) * Math.sin(the)
+          * Math.sin(psi);
+      var y = Math.cos(phi) * Math.sin(the) * Math.cos(psi) + Math.sin(phi) * Math.cos(the)
+          * Math.sin(psi);
+      var z = Math.cos(phi) * Math.cos(the) * Math.sin(psi) - Math.sin(phi) * Math.sin(the)
+          * Math.cos(psi);
+      var w = Math.cos(phi) * Math.cos(the) * Math.cos(psi) + Math.sin(phi) * Math.sin(the)
+          * Math.sin(psi);
+
+      orientation = new Quaternion({
+        x : x,
+        y : y,
+        z : z,
+        w : w
+      });
+      orientation.normalize();
+    }
+    this.origin = new Pose({
+      position : position,
+      orientation : orientation
+    });
+  }
+
+  // Geometry
+  var geoms = xml.getElementsByTagName('geometry');
+  if (geoms.length > 0) {
+    var geom = geoms[0];
+    var shape = null;
+    // Check for the shape
+    for (var i = 0; i < geom.childNodes.length; i++) {
+      var node = geom.childNodes[i];
+      if (node.nodeType === 1) {
+        shape = node;
+        break;
+      }
+    }
+    // Check the type
+    var type = shape.nodeName;
+    if (type === 'sphere') {
+      this.geometry = new UrdfSphere({
+        xml : shape
+      });
+    } else if (type === 'box') {
+      this.geometry = new UrdfBox({
+        xml : shape
+      });
+    } else if (type === 'cylinder') {
+      this.geometry = new UrdfCylinder({
+        xml : shape
+      });
+    } else if (type === 'mesh') {
+      this.geometry = new UrdfMesh({
+        xml : shape
+      });
+    } else {
+      console.warn('Unknown geometry type ' + type);
+    }
+  }
+
+  // Material
+  var materials = xml.getElementsByTagName('material');
+  if (materials.length > 0) {
+    this.material = new UrdfMaterial({
+      xml : materials[0]
+    });
+  }
+}
+
+module.exports = UrdfVisual;
+},{"../math/Pose":19,"../math/Quaternion":20,"../math/Vector3":22,"./UrdfBox":27,"./UrdfCylinder":29,"./UrdfMaterial":32,"./UrdfMesh":33,"./UrdfSphere":35}],38:[function(require,module,exports){
+module.exports = require('object-assign')({
+    UrdfBox: require('./UrdfBox'),
+    UrdfColor: require('./UrdfColor'),
+    UrdfCylinder: require('./UrdfCylinder'),
+    UrdfLink: require('./UrdfLink'),
+    UrdfMaterial: require('./UrdfMaterial'),
+    UrdfMesh: require('./UrdfMesh'),
+    UrdfModel: require('./UrdfModel'),
+    UrdfSphere: require('./UrdfSphere'),
+    UrdfVisual: require('./UrdfVisual')
+}, require('./UrdfTypes'));
+
+},{"./UrdfBox":27,"./UrdfColor":28,"./UrdfCylinder":29,"./UrdfLink":31,"./UrdfMaterial":32,"./UrdfMesh":33,"./UrdfModel":34,"./UrdfSphere":35,"./UrdfTypes":36,"./UrdfVisual":37,"object-assign":2}],39:[function(require,module,exports){
+(function (global){
+module.exports = global.WebSocket;
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],40:[function(require,module,exports){
+/* global document */
+module.exports = function Canvas() {
+	return document.createElement('canvas');
+};
+},{}],41:[function(require,module,exports){
+(function (global){
+/**
+ * @fileOverview
+ * @author Graeme Yeates - github.com/megawac
+ */
+
+'use strict';
+
+var Canvas = require('canvas');
+var Image = Canvas.Image || global.Image;
+
+/**
+ * If a message was compressed as a PNG image (a compression hack since
+ * gzipping over WebSockets * is not supported yet), this function places the
+ * "image" in a canvas element then decodes the * "image" as a Base64 string.
+ *
+ * @private
+ * @param data - object containing the PNG data.
+ * @param callback - function with params:
+ *   * data - the uncompressed data
+ */
+function decompressPng(data, callback) {
+  // Uncompresses the data before sending it through (use image/canvas to do so).
+  var image = new Image();
+  // When the image loads, extracts the raw data (JSON message).
+  image.onload = function() {
+    // Creates a local canvas to draw on.
+    var canvas = new Canvas();
+    var context = canvas.getContext('2d');
+
+    // Sets width and height.
+    canvas.width = image.width;
+    canvas.height = image.height;
+
+    // Prevents anti-aliasing and loosing data
+    context.imageSmoothingEnabled = false;
+    context.webkitImageSmoothingEnabled = false;
+    context.mozImageSmoothingEnabled = false;
+
+    // Puts the data into the image.
+    context.drawImage(image, 0, 0);
+    // Grabs the raw, uncompressed data.
+    var imageData = context.getImageData(0, 0, image.width, image.height).data;
+
+    // Constructs the JSON.
+    var jsonData = '';
+    for (var i = 0; i < imageData.length; i += 4) {
+      // RGB
+      jsonData += String.fromCharCode(imageData[i], imageData[i + 1], imageData[i + 2]);
+    }
+    callback(JSON.parse(jsonData));
+  };
+  // Sends the image data to load.
+  image.src = 'data:image/png;base64,' + data;
+}
+
+module.exports = decompressPng;
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"canvas":40}],42:[function(require,module,exports){
+(function (global){
+exports.DOMImplementation = global.DOMImplementation;
+exports.XMLSerializer = global.XMLSerializer;
+exports.DOMParser = global.DOMParser;
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}]},{},[4]);
diff --git a/clever/www/js/three.min.js b/clever/www/js/three.min.js
new file mode 100644
index 00000000..36953010
--- /dev/null
+++ b/clever/www/js/three.min.js
@@ -0,0 +1,898 @@
+// threejs.org/license
+(function(m,ja){"object"===typeof exports&&"undefined"!==typeof module?ja(exports):"function"===typeof define&&define.amd?define(["exports"],ja):ja(m.THREE=m.THREE||{})})(this,function(m){function ja(){}function C(a,b){this.x=a||0;this.y=b||0}function K(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1];0<arguments.length&&console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")}function Z(a,b,c,d){this._x=a||0;this._y=b||0;this._z=c||0;this._w=void 0!==d?d:1}
+function p(a,b,c){this.x=a||0;this.y=b||0;this.z=c||0}function ra(){this.elements=[1,0,0,0,1,0,0,0,1];0<arguments.length&&console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")}function ea(a,b,c,d,e,f,g,h,k,l){Object.defineProperty(this,"id",{value:kf++});this.uuid=R.generateUUID();this.name="";this.image=void 0!==a?a:ea.DEFAULT_IMAGE;this.mipmaps=[];this.mapping=void 0!==b?b:ea.DEFAULT_MAPPING;this.wrapS=void 0!==c?c:1001;this.wrapT=void 0!==d?d:1001;this.magFilter=
+void 0!==e?e:1006;this.minFilter=void 0!==f?f:1008;this.anisotropy=void 0!==k?k:1;this.format=void 0!==g?g:1023;this.type=void 0!==h?h:1009;this.offset=new C(0,0);this.repeat=new C(1,1);this.center=new C(0,0);this.rotation=0;this.matrixAutoUpdate=!0;this.matrix=new ra;this.generateMipmaps=!0;this.premultiplyAlpha=!1;this.flipY=!0;this.unpackAlignment=4;this.encoding=void 0!==l?l:3E3;this.version=0;this.onUpdate=null}function da(a,b,c,d){this.x=a||0;this.y=b||0;this.z=c||0;this.w=void 0!==d?d:1}function Hb(a,
+b,c){this.uuid=R.generateUUID();this.width=a;this.height=b;this.scissor=new da(0,0,a,b);this.scissorTest=!1;this.viewport=new da(0,0,a,b);c=c||{};void 0===c.minFilter&&(c.minFilter=1006);this.texture=new ea(void 0,void 0,c.wrapS,c.wrapT,c.magFilter,c.minFilter,c.format,c.type,c.anisotropy,c.encoding);this.depthBuffer=void 0!==c.depthBuffer?c.depthBuffer:!0;this.stencilBuffer=void 0!==c.stencilBuffer?c.stencilBuffer:!0;this.depthTexture=void 0!==c.depthTexture?c.depthTexture:null}function Ib(a,b,c){Hb.call(this,
+a,b,c);this.activeMipMapLevel=this.activeCubeFace=0}function fb(a,b,c,d,e,f,g,h,k,l,q,n){ea.call(this,null,f,g,h,k,l,d,e,q,n);this.image={data:a,width:b,height:c};this.magFilter=void 0!==k?k:1003;this.minFilter=void 0!==l?l:1003;this.flipY=this.generateMipmaps=!1;this.unpackAlignment=1}function Ua(a,b,c,d,e,f,g,h,k,l){a=void 0!==a?a:[];ea.call(this,a,void 0!==b?b:301,c,d,e,f,g,h,k,l);this.flipY=!1}function Jb(a,b,c){var d=a[0];if(0>=d||0<d)return a;var e=b*c,f=we[e];void 0===f&&(f=new Float32Array(e),
+we[e]=f);if(0!==b)for(d.toArray(f,0),d=1,e=0;d!==b;++d)e+=c,a[d].toArray(f,e);return f}function xe(a,b){var c=ye[b];void 0===c&&(c=new Int32Array(b),ye[b]=c);for(var d=0;d!==b;++d)c[d]=a.allocTextureUnit();return c}function lf(a,b){a.uniform1f(this.addr,b)}function mf(a,b){a.uniform1i(this.addr,b)}function nf(a,b){void 0===b.x?a.uniform2fv(this.addr,b):a.uniform2f(this.addr,b.x,b.y)}function of(a,b){void 0!==b.x?a.uniform3f(this.addr,b.x,b.y,b.z):void 0!==b.r?a.uniform3f(this.addr,b.r,b.g,b.b):a.uniform3fv(this.addr,
+b)}function pf(a,b){void 0===b.x?a.uniform4fv(this.addr,b):a.uniform4f(this.addr,b.x,b.y,b.z,b.w)}function qf(a,b){a.uniformMatrix2fv(this.addr,!1,b.elements||b)}function rf(a,b){void 0===b.elements?a.uniformMatrix3fv(this.addr,!1,b):(ze.set(b.elements),a.uniformMatrix3fv(this.addr,!1,ze))}function sf(a,b){void 0===b.elements?a.uniformMatrix4fv(this.addr,!1,b):(Ae.set(b.elements),a.uniformMatrix4fv(this.addr,!1,Ae))}function tf(a,b,c){var d=c.allocTextureUnit();a.uniform1i(this.addr,d);c.setTexture2D(b||
+Be,d)}function uf(a,b,c){var d=c.allocTextureUnit();a.uniform1i(this.addr,d);c.setTextureCube(b||Ce,d)}function De(a,b){a.uniform2iv(this.addr,b)}function Ee(a,b){a.uniform3iv(this.addr,b)}function Fe(a,b){a.uniform4iv(this.addr,b)}function vf(a){switch(a){case 5126:return lf;case 35664:return nf;case 35665:return of;case 35666:return pf;case 35674:return qf;case 35675:return rf;case 35676:return sf;case 35678:case 36198:return tf;case 35680:return uf;case 5124:case 35670:return mf;case 35667:case 35671:return De;
+case 35668:case 35672:return Ee;case 35669:case 35673:return Fe}}function wf(a,b){a.uniform1fv(this.addr,b)}function xf(a,b){a.uniform1iv(this.addr,b)}function yf(a,b){a.uniform2fv(this.addr,Jb(b,this.size,2))}function zf(a,b){a.uniform3fv(this.addr,Jb(b,this.size,3))}function Af(a,b){a.uniform4fv(this.addr,Jb(b,this.size,4))}function Bf(a,b){a.uniformMatrix2fv(this.addr,!1,Jb(b,this.size,4))}function Cf(a,b){a.uniformMatrix3fv(this.addr,!1,Jb(b,this.size,9))}function Df(a,b){a.uniformMatrix4fv(this.addr,
+!1,Jb(b,this.size,16))}function Ef(a,b,c){var d=b.length,e=xe(c,d);a.uniform1iv(this.addr,e);for(a=0;a!==d;++a)c.setTexture2D(b[a]||Be,e[a])}function Ff(a,b,c){var d=b.length,e=xe(c,d);a.uniform1iv(this.addr,e);for(a=0;a!==d;++a)c.setTextureCube(b[a]||Ce,e[a])}function Gf(a){switch(a){case 5126:return wf;case 35664:return yf;case 35665:return zf;case 35666:return Af;case 35674:return Bf;case 35675:return Cf;case 35676:return Df;case 35678:return Ef;case 35680:return Ff;case 5124:case 35670:return xf;
+case 35667:case 35671:return De;case 35668:case 35672:return Ee;case 35669:case 35673:return Fe}}function Hf(a,b,c){this.id=a;this.addr=c;this.setValue=vf(b.type)}function If(a,b,c){this.id=a;this.addr=c;this.size=b.size;this.setValue=Gf(b.type)}function Ge(a){this.id=a;this.seq=[];this.map={}}function gb(a,b,c){this.seq=[];this.map={};this.renderer=c;c=a.getProgramParameter(b,a.ACTIVE_UNIFORMS);for(var d=0;d<c;++d){var e=a.getActiveUniform(b,d),f=a.getUniformLocation(b,e.name),g=this,h=e.name,k=
+h.length;for(Od.lastIndex=0;;){var l=Od.exec(h),q=Od.lastIndex,n=l[1],t=l[3];"]"===l[2]&&(n|=0);if(void 0===t||"["===t&&q+2===k){h=g;e=void 0===t?new Hf(n,e,f):new If(n,e,f);h.seq.push(e);h.map[e.id]=e;break}else t=g.map[n],void 0===t&&(t=new Ge(n),n=g,g=t,n.seq.push(g),n.map[g.id]=g),g=t}}}function H(a,b,c){return void 0===b&&void 0===c?this.set(a):this.setRGB(a,b,c)}function kd(a,b){this.min=void 0!==a?a:new C(Infinity,Infinity);this.max=void 0!==b?b:new C(-Infinity,-Infinity)}function Jf(a,b,c,
+d,e){var f,g,h,k,l,q,n,t,r,m,v,w,x,z,I,B;this.render=function(a,u,za,la){if(0!==a.length){u=new p;var J=la.w/la.z,ta=.5*la.z,Va=.5*la.w,L=16/la.w,Y=new C(L*J,L),ua=new p(1,1,0),M=new C(1,1),V=new kd;V.min.set(la.x,la.y);V.max.set(la.x+(la.z-16),la.y+(la.w-16));if(void 0===z){var L=new Float32Array([-1,-1,0,0,1,-1,1,0,1,1,1,1,-1,1,0,1]),y=new Uint16Array([0,1,2,0,2,3]);v=b.createBuffer();w=b.createBuffer();b.bindBuffer(b.ARRAY_BUFFER,v);b.bufferData(b.ARRAY_BUFFER,L,b.STATIC_DRAW);b.bindBuffer(b.ELEMENT_ARRAY_BUFFER,
+w);b.bufferData(b.ELEMENT_ARRAY_BUFFER,y,b.STATIC_DRAW);I=b.createTexture();B=b.createTexture();c.bindTexture(b.TEXTURE_2D,I);b.texImage2D(b.TEXTURE_2D,0,b.RGB,16,16,0,b.RGB,b.UNSIGNED_BYTE,null);b.texParameteri(b.TEXTURE_2D,b.TEXTURE_WRAP_S,b.CLAMP_TO_EDGE);b.texParameteri(b.TEXTURE_2D,b.TEXTURE_WRAP_T,b.CLAMP_TO_EDGE);b.texParameteri(b.TEXTURE_2D,b.TEXTURE_MAG_FILTER,b.NEAREST);b.texParameteri(b.TEXTURE_2D,b.TEXTURE_MIN_FILTER,b.NEAREST);c.bindTexture(b.TEXTURE_2D,B);b.texImage2D(b.TEXTURE_2D,0,
+b.RGBA,16,16,0,b.RGBA,b.UNSIGNED_BYTE,null);b.texParameteri(b.TEXTURE_2D,b.TEXTURE_WRAP_S,b.CLAMP_TO_EDGE);b.texParameteri(b.TEXTURE_2D,b.TEXTURE_WRAP_T,b.CLAMP_TO_EDGE);b.texParameteri(b.TEXTURE_2D,b.TEXTURE_MAG_FILTER,b.NEAREST);b.texParameteri(b.TEXTURE_2D,b.TEXTURE_MIN_FILTER,b.NEAREST);var L=x={vertexShader:"uniform lowp int renderType;\nuniform vec3 screenPosition;\nuniform vec2 scale;\nuniform float rotation;\nuniform sampler2D occlusionMap;\nattribute vec2 position;\nattribute vec2 uv;\nvarying vec2 vUV;\nvarying float vVisibility;\nvoid main() {\n\tvUV = uv;\n\tvec2 pos = position;\n\tif ( renderType == 2 ) {\n\t\tvec4 visibility = texture2D( occlusionMap, vec2( 0.1, 0.1 ) );\n\t\tvisibility += texture2D( occlusionMap, vec2( 0.5, 0.1 ) );\n\t\tvisibility += texture2D( occlusionMap, vec2( 0.9, 0.1 ) );\n\t\tvisibility += texture2D( occlusionMap, vec2( 0.9, 0.5 ) );\n\t\tvisibility += texture2D( occlusionMap, vec2( 0.9, 0.9 ) );\n\t\tvisibility += texture2D( occlusionMap, vec2( 0.5, 0.9 ) );\n\t\tvisibility += texture2D( occlusionMap, vec2( 0.1, 0.9 ) );\n\t\tvisibility += texture2D( occlusionMap, vec2( 0.1, 0.5 ) );\n\t\tvisibility += texture2D( occlusionMap, vec2( 0.5, 0.5 ) );\n\t\tvVisibility =        visibility.r / 9.0;\n\t\tvVisibility *= 1.0 - visibility.g / 9.0;\n\t\tvVisibility *=       visibility.b / 9.0;\n\t\tvVisibility *= 1.0 - visibility.a / 9.0;\n\t\tpos.x = cos( rotation ) * position.x - sin( rotation ) * position.y;\n\t\tpos.y = sin( rotation ) * position.x + cos( rotation ) * position.y;\n\t}\n\tgl_Position = vec4( ( pos * scale + screenPosition.xy ).xy, screenPosition.z, 1.0 );\n}",
+fragmentShader:"uniform lowp int renderType;\nuniform sampler2D map;\nuniform float opacity;\nuniform vec3 color;\nvarying vec2 vUV;\nvarying float vVisibility;\nvoid main() {\n\tif ( renderType == 0 ) {\n\t\tgl_FragColor = vec4( 1.0, 0.0, 1.0, 0.0 );\n\t} else if ( renderType == 1 ) {\n\t\tgl_FragColor = texture2D( map, vUV );\n\t} else {\n\t\tvec4 texture = texture2D( map, vUV );\n\t\ttexture.a *= opacity * vVisibility;\n\t\tgl_FragColor = texture;\n\t\tgl_FragColor.rgb *= color;\n\t}\n}"},y=b.createProgram(),
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+for(var D=0,H=aa.lensFlares.length;D<H;D++){var E=aa.lensFlares[D];.001<E.opacity&&.001<E.scale&&(ua.x=E.x,ua.y=E.y,ua.z=E.z,L=E.size*E.scale/la.w,Y.x=L*J,Y.y=L,b.uniform3f(t,ua.x,ua.y,ua.z),b.uniform2f(q,Y.x,Y.y),b.uniform1f(n,E.rotation),b.uniform1f(k,E.opacity),b.uniform3f(l,E.color.r,E.color.g,E.color.b),c.setBlending(E.blending,E.blendEquation,E.blendSrc,E.blendDst),d.setTexture2D(E.texture,1),b.drawElements(b.TRIANGLES,6,b.UNSIGNED_SHORT,0))}}c.enable(b.CULL_FACE);c.enable(b.DEPTH_TEST);c.buffers.depth.setMask(!0);
+c.reset()}}}function tc(a,b,c,d,e,f,g,h,k){ea.call(this,a,b,c,d,e,f,g,h,k);this.needsUpdate=!0}function Kf(a,b,c,d,e){var f,g,h,k,l,q,n,t,r,m,v,w,x,z,I,B,J;function ta(a,b){return a.renderOrder!==b.renderOrder?a.renderOrder-b.renderOrder:a.z!==b.z?b.z-a.z:b.id-a.id}var za,la,ha,He,Va=new p,L=new Z,C=new p;this.render=function(u,p,V){if(0!==u.length){if(void 0===ha){var M=new Float32Array([-.5,-.5,0,0,.5,-.5,1,0,.5,.5,1,1,-.5,.5,0,1]),y=new Uint16Array([0,1,2,0,2,3]);za=b.createBuffer();la=b.createBuffer();
+b.bindBuffer(b.ARRAY_BUFFER,za);b.bufferData(b.ARRAY_BUFFER,M,b.STATIC_DRAW);b.bindBuffer(b.ELEMENT_ARRAY_BUFFER,la);b.bufferData(b.ELEMENT_ARRAY_BUFFER,y,b.STATIC_DRAW);M=b.createProgram();y=b.createShader(b.VERTEX_SHADER);var Y=b.createShader(b.FRAGMENT_SHADER);b.shaderSource(y,["precision "+e.precision+" float;","#define SHADER_NAME SpriteMaterial\nuniform mat4 modelViewMatrix;\nuniform mat4 projectionMatrix;\nuniform float rotation;\nuniform vec2 scale;\nuniform vec2 uvOffset;\nuniform vec2 uvScale;\nattribute vec2 position;\nattribute vec2 uv;\nvarying vec2 vUV;\nvarying float fogDepth;\nvoid main() {\n\tvUV = uvOffset + uv * uvScale;\n\tvec2 alignedPosition = position * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tvec4 mvPosition;\n\tmvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\tfogDepth = - mvPosition.z;\n}"].join("\n"));
+b.shaderSource(Y,["precision "+e.precision+" float;","#define SHADER_NAME SpriteMaterial\nuniform vec3 color;\nuniform sampler2D map;\nuniform float opacity;\nuniform int fogType;\nuniform vec3 fogColor;\nuniform float fogDensity;\nuniform float fogNear;\nuniform float fogFar;\nuniform float alphaTest;\nvarying vec2 vUV;\nvarying float fogDepth;\nvoid main() {\n\tvec4 texture = texture2D( map, vUV );\n\tgl_FragColor = vec4( color * texture.xyz, texture.a * opacity );\n\tif ( gl_FragColor.a < alphaTest ) discard;\n\tif ( fogType > 0 ) {\n\t\tfloat fogFactor = 0.0;\n\t\tif ( fogType == 1 ) {\n\t\t\tfogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t\t} else {\n\t\t\tconst float LOG2 = 1.442695;\n\t\t\tfogFactor = exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 );\n\t\t\tfogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );\n\t\t}\n\t\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n\t}\n}"].join("\n"));
+b.compileShader(y);b.compileShader(Y);b.attachShader(M,y);b.attachShader(M,Y);b.linkProgram(M);ha=M;B=b.getAttribLocation(ha,"position");J=b.getAttribLocation(ha,"uv");f=b.getUniformLocation(ha,"uvOffset");g=b.getUniformLocation(ha,"uvScale");h=b.getUniformLocation(ha,"rotation");k=b.getUniformLocation(ha,"scale");l=b.getUniformLocation(ha,"color");q=b.getUniformLocation(ha,"map");n=b.getUniformLocation(ha,"opacity");t=b.getUniformLocation(ha,"modelViewMatrix");r=b.getUniformLocation(ha,"projectionMatrix");
+m=b.getUniformLocation(ha,"fogType");v=b.getUniformLocation(ha,"fogDensity");w=b.getUniformLocation(ha,"fogNear");x=b.getUniformLocation(ha,"fogFar");z=b.getUniformLocation(ha,"fogColor");b.getUniformLocation(ha,"fogDepth");I=b.getUniformLocation(ha,"alphaTest");M=document.createElementNS("http://www.w3.org/1999/xhtml","canvas");M.width=8;M.height=8;y=M.getContext("2d");y.fillStyle="white";y.fillRect(0,0,8,8);He=new tc(M)}c.useProgram(ha);c.initAttributes();c.enableAttribute(B);c.enableAttribute(J);
+c.disableUnusedAttributes();c.disable(b.CULL_FACE);c.enable(b.BLEND);b.bindBuffer(b.ARRAY_BUFFER,za);b.vertexAttribPointer(B,2,b.FLOAT,!1,16,0);b.vertexAttribPointer(J,2,b.FLOAT,!1,16,8);b.bindBuffer(b.ELEMENT_ARRAY_BUFFER,la);b.uniformMatrix4fv(r,!1,V.projectionMatrix.elements);c.activeTexture(b.TEXTURE0);b.uniform1i(q,0);y=M=0;(Y=p.fog)?(b.uniform3f(z,Y.color.r,Y.color.g,Y.color.b),Y.isFog?(b.uniform1f(w,Y.near),b.uniform1f(x,Y.far),b.uniform1i(m,1),y=M=1):Y.isFogExp2&&(b.uniform1f(v,Y.density),
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+skinning:z});t[c]=x}var B=this;this.enabled=!1;this.autoUpdate=!0;this.needsUpdate=!1;this.type=1;this.renderSingleSided=this.renderReverseSided=!0;this.render=function(b,c,d){if(!1!==B.enabled&&(!1!==B.autoUpdate||!1!==B.needsUpdate)&&0!==b.length){var n=a.state;n.disable(a.context.BLEND);n.buffers.color.setClear(1,1,1,1);n.buffers.depth.setTest(!0);n.setScissorTest(!1);for(var t,r=0,z=b.length;r<z;r++){var u=b[r];t=u.shadow;var I=u&&u.isPointLight;if(void 0===t)console.warn("THREE.WebGLShadowMap:",
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+"gl.VALIDATE_STATUS",g.getProgramParameter(p,g.VALIDATE_STATUS),"gl.getProgramInfoLog",f,e,q);else if(""!==f)console.warn("THREE.WebGLProgram: gl.getProgramInfoLog()",f);else if(""===e||""===q)t=!1;t&&(this.diagnostics={runnable:n,material:d,programLog:f,vertexShader:{log:e,prefix:h},fragmentShader:{log:q,prefix:b}});g.deleteShader(k);g.deleteShader(l);var z;this.getUniforms=function(){void 0===z&&(z=new gb(g,p,a));return z};var I;this.getAttributes=function(){if(void 0===I){for(var a={},b=g.getProgramParameter(p,
+g.ACTIVE_ATTRIBUTES),c=0;c<b;c++){var d=g.getActiveAttrib(p,c).name;a[d]=g.getAttribLocation(p,d)}I=a}return I};this.destroy=function(){g.deleteProgram(p);this.program=void 0};Object.defineProperties(this,{uniforms:{get:function(){console.warn("THREE.WebGLProgram: .uniforms is now .getUniforms().");return this.getUniforms()}},attributes:{get:function(){console.warn("THREE.WebGLProgram: .attributes is now .getAttributes().");return this.getAttributes()}}});this.id=ig++;this.code=c;this.usedTimes=1;
+this.program=p;this.vertexShader=k;this.fragmentShader=l;return this}function jg(a,b,c){function d(a,b){if(a)a.isTexture?c=a.encoding:a.isWebGLRenderTarget&&(console.warn("THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead."),c=a.texture.encoding);else var c=3E3;3E3===c&&b&&(c=3007);return c}var e=[],f={MeshDepthMaterial:"depth",MeshDistanceMaterial:"distanceRGBA",MeshNormalMaterial:"normal",MeshBasicMaterial:"basic",MeshLambertMaterial:"lambert",
+MeshPhongMaterial:"phong",MeshToonMaterial:"phong",MeshStandardMaterial:"physical",MeshPhysicalMaterial:"physical",LineBasicMaterial:"basic",LineDashedMaterial:"dashed",PointsMaterial:"points",ShadowMaterial:"shadow"},g="precision supportsVertexTextures map mapEncoding envMap envMapMode envMapEncoding lightMap aoMap emissiveMap emissiveMapEncoding bumpMap normalMap displacementMap specularMap roughnessMap metalnessMap gradientMap alphaMap combine vertexColors fog useFog fogExp flatShading sizeAttenuation logarithmicDepthBuffer skinning maxBones useVertexTexture morphTargets morphNormals maxMorphTargets maxMorphNormals premultipliedAlpha numDirLights numPointLights numSpotLights numHemiLights numRectAreaLights shadowMapEnabled shadowMapType toneMapping physicallyCorrectLights alphaTest doubleSided flipSided numClippingPlanes numClipIntersection depthPacking dithering".split(" ");
+this.getParameters=function(b,e,g,q,n,t,r){var h=f[b.type];if(r.isSkinnedMesh){var l=r.skeleton.bones;if(c.floatVertexTextures)l=1024;else{var k=Math.min(Math.floor((c.maxVertexUniforms-20)/4),l.length);k<l.length?(console.warn("THREE.WebGLRenderer: Skeleton has "+l.length+" bones. This GPU supports "+k+"."),l=0):l=k}}else l=0;k=c.precision;null!==b.precision&&(k=c.getMaxPrecision(b.precision),k!==b.precision&&console.warn("THREE.WebGLProgram.getParameters:",b.precision,"not supported, using",k,"instead."));
+var m=a.getRenderTarget();return{shaderID:h,precision:k,supportsVertexTextures:c.vertexTextures,outputEncoding:d(m?m.texture:null,a.gammaOutput),map:!!b.map,mapEncoding:d(b.map,a.gammaInput),envMap:!!b.envMap,envMapMode:b.envMap&&b.envMap.mapping,envMapEncoding:d(b.envMap,a.gammaInput),envMapCubeUV:!!b.envMap&&(306===b.envMap.mapping||307===b.envMap.mapping),lightMap:!!b.lightMap,aoMap:!!b.aoMap,emissiveMap:!!b.emissiveMap,emissiveMapEncoding:d(b.emissiveMap,a.gammaInput),bumpMap:!!b.bumpMap,normalMap:!!b.normalMap,
+displacementMap:!!b.displacementMap,roughnessMap:!!b.roughnessMap,metalnessMap:!!b.metalnessMap,specularMap:!!b.specularMap,alphaMap:!!b.alphaMap,gradientMap:!!b.gradientMap,combine:b.combine,vertexColors:b.vertexColors,fog:!!q,useFog:b.fog,fogExp:q&&q.isFogExp2,flatShading:b.flatShading,sizeAttenuation:b.sizeAttenuation,logarithmicDepthBuffer:c.logarithmicDepthBuffer,skinning:b.skinning&&0<l,maxBones:l,useVertexTexture:c.floatVertexTextures,morphTargets:b.morphTargets,morphNormals:b.morphNormals,
+maxMorphTargets:a.maxMorphTargets,maxMorphNormals:a.maxMorphNormals,numDirLights:e.directional.length,numPointLights:e.point.length,numSpotLights:e.spot.length,numRectAreaLights:e.rectArea.length,numHemiLights:e.hemi.length,numClippingPlanes:n,numClipIntersection:t,dithering:b.dithering,shadowMapEnabled:a.shadowMap.enabled&&r.receiveShadow&&0<g.length,shadowMapType:a.shadowMap.type,toneMapping:a.toneMapping,physicallyCorrectLights:a.physicallyCorrectLights,premultipliedAlpha:b.premultipliedAlpha,
+alphaTest:b.alphaTest,doubleSided:2===b.side,flipSided:1===b.side,depthPacking:void 0!==b.depthPacking?b.depthPacking:!1}};this.getProgramCode=function(b,c){var d=[];c.shaderID?d.push(c.shaderID):(d.push(b.fragmentShader),d.push(b.vertexShader));if(void 0!==b.defines)for(var e in b.defines)d.push(e),d.push(b.defines[e]);for(e=0;e<g.length;e++)d.push(c[g[e]]);d.push(b.onBeforeCompile.toString());d.push(a.gammaOutput);return d.join()};this.acquireProgram=function(c,d,f,g){for(var h,l=0,k=e.length;l<
+k;l++){var q=e[l];if(q.code===g){h=q;++h.usedTimes;break}}void 0===h&&(h=new hg(a,b,g,c,d,f),e.push(h));return h};this.releaseProgram=function(a){if(0===--a.usedTimes){var b=e.indexOf(a);e[b]=e[e.length-1];e.pop();a.destroy()}};this.programs=e}function kg(a,b,c,d,e,f,g){function h(a,b){if(a.width>b||a.height>b){b/=Math.max(a.width,a.height);var c=document.createElementNS("http://www.w3.org/1999/xhtml","canvas");c.width=Math.floor(a.width*b);c.height=Math.floor(a.height*b);c.getContext("2d").drawImage(a,
+0,0,a.width,a.height,0,0,c.width,c.height);console.warn("THREE.WebGLRenderer: image is too big ("+a.width+"x"+a.height+"). Resized to "+c.width+"x"+c.height,a);return c}return a}function k(a){return R.isPowerOfTwo(a.width)&&R.isPowerOfTwo(a.height)}function l(a,b){return a.generateMipmaps&&b&&1003!==a.minFilter&&1006!==a.minFilter}function q(b){return 1003===b||1004===b||1005===b?a.NEAREST:a.LINEAR}function n(b){b=b.target;b.removeEventListener("dispose",n);a:{var c=d.get(b);if(b.image&&c.__image__webglTextureCube)a.deleteTexture(c.__image__webglTextureCube);
+else{if(void 0===c.__webglInit)break a;a.deleteTexture(c.__webglTexture)}d.remove(b)}g.textures--}function t(b){b=b.target;b.removeEventListener("dispose",t);var c=d.get(b),e=d.get(b.texture);if(b){void 0!==e.__webglTexture&&a.deleteTexture(e.__webglTexture);b.depthTexture&&b.depthTexture.dispose();if(b.isWebGLRenderTargetCube)for(e=0;6>e;e++)a.deleteFramebuffer(c.__webglFramebuffer[e]),c.__webglDepthbuffer&&a.deleteRenderbuffer(c.__webglDepthbuffer[e]);else a.deleteFramebuffer(c.__webglFramebuffer),
+c.__webglDepthbuffer&&a.deleteRenderbuffer(c.__webglDepthbuffer);d.remove(b.texture);d.remove(b)}g.textures--}function r(b,q){var t=d.get(b);if(0<b.version&&t.__version!==b.version){var r=b.image;if(void 0===r)console.warn("THREE.WebGLRenderer: Texture marked for update but image is undefined",b);else if(!1===r.complete)console.warn("THREE.WebGLRenderer: Texture marked for update but image is incomplete",b);else{void 0===t.__webglInit&&(t.__webglInit=!0,b.addEventListener("dispose",n),t.__webglTexture=
+a.createTexture(),g.textures++);c.activeTexture(a.TEXTURE0+q);c.bindTexture(a.TEXTURE_2D,t.__webglTexture);a.pixelStorei(a.UNPACK_FLIP_Y_WEBGL,b.flipY);a.pixelStorei(a.UNPACK_PREMULTIPLY_ALPHA_WEBGL,b.premultiplyAlpha);a.pixelStorei(a.UNPACK_ALIGNMENT,b.unpackAlignment);var u=h(b.image,e.maxTextureSize);(1001!==b.wrapS||1001!==b.wrapT||1003!==b.minFilter&&1006!==b.minFilter)&&!1===k(u)&&(q=u,q instanceof HTMLImageElement||q instanceof HTMLCanvasElement||q instanceof ImageBitmap?(r=document.createElementNS("http://www.w3.org/1999/xhtml",
+"canvas"),r.width=R.floorPowerOfTwo(q.width),r.height=R.floorPowerOfTwo(q.height),r.getContext("2d").drawImage(q,0,0,r.width,r.height),console.warn("THREE.WebGLRenderer: image is not power of two ("+q.width+"x"+q.height+"). Resized to "+r.width+"x"+r.height,q),u=r):u=q);q=k(u);var r=f.convert(b.format),z=f.convert(b.type);m(a.TEXTURE_2D,b,q);var p=b.mipmaps;if(b.isDepthTexture){p=a.DEPTH_COMPONENT;if(1015===b.type){if(!x)throw Error("Float Depth Texture only supported in WebGL2.0");p=a.DEPTH_COMPONENT32F}else x&&
+(p=a.DEPTH_COMPONENT16);1026===b.format&&p===a.DEPTH_COMPONENT&&1012!==b.type&&1014!==b.type&&(console.warn("THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture."),b.type=1012,z=f.convert(b.type));1027===b.format&&(p=a.DEPTH_STENCIL,1020!==b.type&&(console.warn("THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture."),b.type=1020,z=f.convert(b.type)));c.texImage2D(a.TEXTURE_2D,0,p,u.width,u.height,0,r,z,null)}else if(b.isDataTexture)if(0<
+p.length&&q){for(var v=0,w=p.length;v<w;v++)u=p[v],c.texImage2D(a.TEXTURE_2D,v,r,u.width,u.height,0,r,z,u.data);b.generateMipmaps=!1}else c.texImage2D(a.TEXTURE_2D,0,r,u.width,u.height,0,r,z,u.data);else if(b.isCompressedTexture)for(v=0,w=p.length;v<w;v++)u=p[v],1023!==b.format&&1022!==b.format?-1<c.getCompressedTextureFormats().indexOf(r)?c.compressedTexImage2D(a.TEXTURE_2D,v,r,u.width,u.height,0,u.data):console.warn("THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()"):
+c.texImage2D(a.TEXTURE_2D,v,r,u.width,u.height,0,r,z,u.data);else if(0<p.length&&q){v=0;for(w=p.length;v<w;v++)u=p[v],c.texImage2D(a.TEXTURE_2D,v,r,r,z,u);b.generateMipmaps=!1}else c.texImage2D(a.TEXTURE_2D,0,r,r,z,u);l(b,q)&&a.generateMipmap(a.TEXTURE_2D);t.__version=b.version;if(b.onUpdate)b.onUpdate(b);return}}c.activeTexture(a.TEXTURE0+q);c.bindTexture(a.TEXTURE_2D,t.__webglTexture)}function m(c,g,h){h?(a.texParameteri(c,a.TEXTURE_WRAP_S,f.convert(g.wrapS)),a.texParameteri(c,a.TEXTURE_WRAP_T,
+f.convert(g.wrapT)),a.texParameteri(c,a.TEXTURE_MAG_FILTER,f.convert(g.magFilter)),a.texParameteri(c,a.TEXTURE_MIN_FILTER,f.convert(g.minFilter))):(a.texParameteri(c,a.TEXTURE_WRAP_S,a.CLAMP_TO_EDGE),a.texParameteri(c,a.TEXTURE_WRAP_T,a.CLAMP_TO_EDGE),1001===g.wrapS&&1001===g.wrapT||console.warn("THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.",g),a.texParameteri(c,a.TEXTURE_MAG_FILTER,q(g.magFilter)),a.texParameteri(c,
+a.TEXTURE_MIN_FILTER,q(g.minFilter)),1003!==g.minFilter&&1006!==g.minFilter&&console.warn("THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.",g));!(h=b.get("EXT_texture_filter_anisotropic"))||1015===g.type&&null===b.get("OES_texture_float_linear")||1016===g.type&&null===b.get("OES_texture_half_float_linear")||!(1<g.anisotropy||d.get(g).__currentAnisotropy)||(a.texParameterf(c,h.TEXTURE_MAX_ANISOTROPY_EXT,Math.min(g.anisotropy,
+e.getMaxAnisotropy())),d.get(g).__currentAnisotropy=g.anisotropy)}function p(b,e,g,h){var l=f.convert(e.texture.format),k=f.convert(e.texture.type);c.texImage2D(h,0,l,e.width,e.height,0,l,k,null);a.bindFramebuffer(a.FRAMEBUFFER,b);a.framebufferTexture2D(a.FRAMEBUFFER,g,h,d.get(e.texture).__webglTexture,0);a.bindFramebuffer(a.FRAMEBUFFER,null)}function w(b,c){a.bindRenderbuffer(a.RENDERBUFFER,b);c.depthBuffer&&!c.stencilBuffer?(a.renderbufferStorage(a.RENDERBUFFER,a.DEPTH_COMPONENT16,c.width,c.height),
+a.framebufferRenderbuffer(a.FRAMEBUFFER,a.DEPTH_ATTACHMENT,a.RENDERBUFFER,b)):c.depthBuffer&&c.stencilBuffer?(a.renderbufferStorage(a.RENDERBUFFER,a.DEPTH_STENCIL,c.width,c.height),a.framebufferRenderbuffer(a.FRAMEBUFFER,a.DEPTH_STENCIL_ATTACHMENT,a.RENDERBUFFER,b)):a.renderbufferStorage(a.RENDERBUFFER,a.RGBA4,c.width,c.height);a.bindRenderbuffer(a.RENDERBUFFER,null)}var x="undefined"!==typeof WebGL2RenderingContext&&a instanceof window.WebGL2RenderingContext;this.setTexture2D=r;this.setTextureCube=
+function(b,q){var t=d.get(b);if(6===b.image.length)if(0<b.version&&t.__version!==b.version){t.__image__webglTextureCube||(b.addEventListener("dispose",n),t.__image__webglTextureCube=a.createTexture(),g.textures++);c.activeTexture(a.TEXTURE0+q);c.bindTexture(a.TEXTURE_CUBE_MAP,t.__image__webglTextureCube);a.pixelStorei(a.UNPACK_FLIP_Y_WEBGL,b.flipY);q=b&&b.isCompressedTexture;for(var r=b.image[0]&&b.image[0].isDataTexture,u=[],p=0;6>p;p++)u[p]=q||r?r?b.image[p].image:b.image[p]:h(b.image[p],e.maxCubemapSize);
+var v=k(u[0]),w=f.convert(b.format),z=f.convert(b.type);m(a.TEXTURE_CUBE_MAP,b,v);for(p=0;6>p;p++)if(q)for(var x,I=u[p].mipmaps,y=0,C=I.length;y<C;y++)x=I[y],1023!==b.format&&1022!==b.format?-1<c.getCompressedTextureFormats().indexOf(w)?c.compressedTexImage2D(a.TEXTURE_CUBE_MAP_POSITIVE_X+p,y,w,x.width,x.height,0,x.data):console.warn("THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()"):c.texImage2D(a.TEXTURE_CUBE_MAP_POSITIVE_X+p,y,w,x.width,x.height,
+0,w,z,x.data);else r?c.texImage2D(a.TEXTURE_CUBE_MAP_POSITIVE_X+p,0,w,u[p].width,u[p].height,0,w,z,u[p].data):c.texImage2D(a.TEXTURE_CUBE_MAP_POSITIVE_X+p,0,w,w,z,u[p]);l(b,v)&&a.generateMipmap(a.TEXTURE_CUBE_MAP);t.__version=b.version;if(b.onUpdate)b.onUpdate(b)}else c.activeTexture(a.TEXTURE0+q),c.bindTexture(a.TEXTURE_CUBE_MAP,t.__image__webglTextureCube)};this.setTextureCubeDynamic=function(b,e){c.activeTexture(a.TEXTURE0+e);c.bindTexture(a.TEXTURE_CUBE_MAP,d.get(b).__webglTexture)};this.setupRenderTarget=
+function(b){var e=d.get(b),f=d.get(b.texture);b.addEventListener("dispose",t);f.__webglTexture=a.createTexture();g.textures++;var h=!0===b.isWebGLRenderTargetCube,n=k(b);if(h){e.__webglFramebuffer=[];for(var q=0;6>q;q++)e.__webglFramebuffer[q]=a.createFramebuffer()}else e.__webglFramebuffer=a.createFramebuffer();if(h){c.bindTexture(a.TEXTURE_CUBE_MAP,f.__webglTexture);m(a.TEXTURE_CUBE_MAP,b.texture,n);for(q=0;6>q;q++)p(e.__webglFramebuffer[q],b,a.COLOR_ATTACHMENT0,a.TEXTURE_CUBE_MAP_POSITIVE_X+q);
+l(b.texture,n)&&a.generateMipmap(a.TEXTURE_CUBE_MAP);c.bindTexture(a.TEXTURE_CUBE_MAP,null)}else c.bindTexture(a.TEXTURE_2D,f.__webglTexture),m(a.TEXTURE_2D,b.texture,n),p(e.__webglFramebuffer,b,a.COLOR_ATTACHMENT0,a.TEXTURE_2D),l(b.texture,n)&&a.generateMipmap(a.TEXTURE_2D),c.bindTexture(a.TEXTURE_2D,null);if(b.depthBuffer){e=d.get(b);f=!0===b.isWebGLRenderTargetCube;if(b.depthTexture){if(f)throw Error("target.depthTexture not supported in Cube render targets");if(b&&b.isWebGLRenderTargetCube)throw Error("Depth Texture with cube render targets is not supported");
+a.bindFramebuffer(a.FRAMEBUFFER,e.__webglFramebuffer);if(!b.depthTexture||!b.depthTexture.isDepthTexture)throw Error("renderTarget.depthTexture must be an instance of THREE.DepthTexture");d.get(b.depthTexture).__webglTexture&&b.depthTexture.image.width===b.width&&b.depthTexture.image.height===b.height||(b.depthTexture.image.width=b.width,b.depthTexture.image.height=b.height,b.depthTexture.needsUpdate=!0);r(b.depthTexture,0);e=d.get(b.depthTexture).__webglTexture;if(1026===b.depthTexture.format)a.framebufferTexture2D(a.FRAMEBUFFER,
+a.DEPTH_ATTACHMENT,a.TEXTURE_2D,e,0);else if(1027===b.depthTexture.format)a.framebufferTexture2D(a.FRAMEBUFFER,a.DEPTH_STENCIL_ATTACHMENT,a.TEXTURE_2D,e,0);else throw Error("Unknown depthTexture format");}else if(f)for(e.__webglDepthbuffer=[],f=0;6>f;f++)a.bindFramebuffer(a.FRAMEBUFFER,e.__webglFramebuffer[f]),e.__webglDepthbuffer[f]=a.createRenderbuffer(),w(e.__webglDepthbuffer[f],b);else a.bindFramebuffer(a.FRAMEBUFFER,e.__webglFramebuffer),e.__webglDepthbuffer=a.createRenderbuffer(),w(e.__webglDepthbuffer,
+b);a.bindFramebuffer(a.FRAMEBUFFER,null)}};this.updateRenderTargetMipmap=function(b){var e=b.texture,f=k(b);l(e,f)&&(b=b.isWebGLRenderTargetCube?a.TEXTURE_CUBE_MAP:a.TEXTURE_2D,e=d.get(e).__webglTexture,c.bindTexture(b,e),a.generateMipmap(b),c.bindTexture(b,null))}}function lg(){var a={};return{get:function(b){b=b.uuid;var c=a[b];void 0===c&&(c={},a[b]=c);return c},remove:function(b){delete a[b.uuid]},clear:function(){a={}}}}function mg(a,b,c){function d(b,c,d){var e=new Uint8Array(4),f=a.createTexture();
+a.bindTexture(b,f);a.texParameteri(b,a.TEXTURE_MIN_FILTER,a.NEAREST);a.texParameteri(b,a.TEXTURE_MAG_FILTER,a.NEAREST);for(b=0;b<d;b++)a.texImage2D(c+b,0,a.RGBA,1,1,0,a.RGBA,a.UNSIGNED_BYTE,e);return f}function e(b){!0!==z[b]&&(a.enable(b),z[b]=!0)}function f(b){!1!==z[b]&&(a.disable(b),z[b]=!1)}function g(b,d,g,h,l,k,n,q){0!==b?e(a.BLEND):f(a.BLEND);if(5!==b){if(b!==J||q!==L)switch(b){case 2:q?(a.blendEquationSeparate(a.FUNC_ADD,a.FUNC_ADD),a.blendFuncSeparate(a.ONE,a.ONE,a.ONE,a.ONE)):(a.blendEquation(a.FUNC_ADD),
+a.blendFunc(a.SRC_ALPHA,a.ONE));break;case 3:q?(a.blendEquationSeparate(a.FUNC_ADD,a.FUNC_ADD),a.blendFuncSeparate(a.ZERO,a.ZERO,a.ONE_MINUS_SRC_COLOR,a.ONE_MINUS_SRC_ALPHA)):(a.blendEquation(a.FUNC_ADD),a.blendFunc(a.ZERO,a.ONE_MINUS_SRC_COLOR));break;case 4:q?(a.blendEquationSeparate(a.FUNC_ADD,a.FUNC_ADD),a.blendFuncSeparate(a.ZERO,a.SRC_COLOR,a.ZERO,a.SRC_ALPHA)):(a.blendEquation(a.FUNC_ADD),a.blendFunc(a.ZERO,a.SRC_COLOR));break;default:q?(a.blendEquationSeparate(a.FUNC_ADD,a.FUNC_ADD),a.blendFuncSeparate(a.ONE,
+a.ONE_MINUS_SRC_ALPHA,a.ONE,a.ONE_MINUS_SRC_ALPHA)):(a.blendEquationSeparate(a.FUNC_ADD,a.FUNC_ADD),a.blendFuncSeparate(a.SRC_ALPHA,a.ONE_MINUS_SRC_ALPHA,a.ONE,a.ONE_MINUS_SRC_ALPHA))}E=A=ha=C=y=ta=null}else{l=l||d;k=k||g;n=n||h;if(d!==ta||l!==ha)a.blendEquationSeparate(c.convert(d),c.convert(l)),ta=d,ha=l;if(g!==y||h!==C||k!==A||n!==E)a.blendFuncSeparate(c.convert(g),c.convert(h),c.convert(k),c.convert(n)),y=g,C=h,A=k,E=n}J=b;L=q}function h(b){D!==b&&(b?a.frontFace(a.CW):a.frontFace(a.CCW),D=b)}
+function k(b){0!==b?(e(a.CULL_FACE),b!==H&&(1===b?a.cullFace(a.BACK):2===b?a.cullFace(a.FRONT):a.cullFace(a.FRONT_AND_BACK))):f(a.CULL_FACE);H=b}function l(b,c,d){if(b){if(e(a.POLYGON_OFFSET_FILL),V!==c||K!==d)a.polygonOffset(c,d),V=c,K=d}else f(a.POLYGON_OFFSET_FILL)}function q(b){void 0===b&&(b=a.TEXTURE0+N-1);R!==b&&(a.activeTexture(b),R=b)}var n=new function(){var b=!1,c=new da,d=null,e=new da(0,0,0,0);return{setMask:function(c){d===c||b||(a.colorMask(c,c,c,c),d=c)},setLocked:function(a){b=a},
+setClear:function(b,d,f,g,h){!0===h&&(b*=g,d*=g,f*=g);c.set(b,d,f,g);!1===e.equals(c)&&(a.clearColor(b,d,f,g),e.copy(c))},reset:function(){b=!1;d=null;e.set(-1,0,0,0)}}},t=new function(){var b=!1,c=null,d=null,g=null;return{setTest:function(b){b?e(a.DEPTH_TEST):f(a.DEPTH_TEST)},setMask:function(d){c===d||b||(a.depthMask(d),c=d)},setFunc:function(b){if(d!==b){if(b)switch(b){case 0:a.depthFunc(a.NEVER);break;case 1:a.depthFunc(a.ALWAYS);break;case 2:a.depthFunc(a.LESS);break;case 3:a.depthFunc(a.LEQUAL);
+break;case 4:a.depthFunc(a.EQUAL);break;case 5:a.depthFunc(a.GEQUAL);break;case 6:a.depthFunc(a.GREATER);break;case 7:a.depthFunc(a.NOTEQUAL);break;default:a.depthFunc(a.LEQUAL)}else a.depthFunc(a.LEQUAL);d=b}},setLocked:function(a){b=a},setClear:function(b){g!==b&&(a.clearDepth(b),g=b)},reset:function(){b=!1;g=d=c=null}}},r=new function(){var b=!1,c=null,d=null,g=null,h=null,l=null,k=null,n=null,q=null;return{setTest:function(b){b?e(a.STENCIL_TEST):f(a.STENCIL_TEST)},setMask:function(d){c===d||b||
+(a.stencilMask(d),c=d)},setFunc:function(b,c,e){if(d!==b||g!==c||h!==e)a.stencilFunc(b,c,e),d=b,g=c,h=e},setOp:function(b,c,d){if(l!==b||k!==c||n!==d)a.stencilOp(b,c,d),l=b,k=c,n=d},setLocked:function(a){b=a},setClear:function(b){q!==b&&(a.clearStencil(b),q=b)},reset:function(){b=!1;q=n=k=l=h=g=d=c=null}}},m=a.getParameter(a.MAX_VERTEX_ATTRIBS),p=new Uint8Array(m),w=new Uint8Array(m),x=new Uint8Array(m),z={},I=null,B=null,J=null,ta=null,y=null,C=null,ha=null,A=null,E=null,L=!1,D=null,H=null,M=null,
+V=null,K=null,N=a.getParameter(a.MAX_COMBINED_TEXTURE_IMAGE_UNITS),m=parseFloat(/^WebGL\ ([0-9])/.exec(a.getParameter(a.VERSION))[1]),aa=1<=parseFloat(m),R=null,P={},Q=new da,G=new da,X={};X[a.TEXTURE_2D]=d(a.TEXTURE_2D,a.TEXTURE_2D,1);X[a.TEXTURE_CUBE_MAP]=d(a.TEXTURE_CUBE_MAP,a.TEXTURE_CUBE_MAP_POSITIVE_X,6);n.setClear(0,0,0,1);t.setClear(1);r.setClear(0);e(a.DEPTH_TEST);t.setFunc(3);h(!1);k(1);e(a.CULL_FACE);e(a.BLEND);g(1);return{buffers:{color:n,depth:t,stencil:r},initAttributes:function(){for(var a=
+0,b=p.length;a<b;a++)p[a]=0},enableAttribute:function(c){p[c]=1;0===w[c]&&(a.enableVertexAttribArray(c),w[c]=1);0!==x[c]&&(b.get("ANGLE_instanced_arrays").vertexAttribDivisorANGLE(c,0),x[c]=0)},enableAttributeAndDivisor:function(c,d){p[c]=1;0===w[c]&&(a.enableVertexAttribArray(c),w[c]=1);x[c]!==d&&(b.get("ANGLE_instanced_arrays").vertexAttribDivisorANGLE(c,d),x[c]=d)},disableUnusedAttributes:function(){for(var b=0,c=w.length;b!==c;++b)w[b]!==p[b]&&(a.disableVertexAttribArray(b),w[b]=0)},enable:e,
+disable:f,getCompressedTextureFormats:function(){if(null===I&&(I=[],b.get("WEBGL_compressed_texture_pvrtc")||b.get("WEBGL_compressed_texture_s3tc")||b.get("WEBGL_compressed_texture_etc1")))for(var c=a.getParameter(a.COMPRESSED_TEXTURE_FORMATS),d=0;d<c.length;d++)I.push(c[d]);return I},useProgram:function(b){return B!==b?(a.useProgram(b),B=b,!0):!1},setBlending:g,setMaterial:function(b){2===b.side?f(a.CULL_FACE):e(a.CULL_FACE);h(1===b.side);!0===b.transparent?g(b.blending,b.blendEquation,b.blendSrc,
+b.blendDst,b.blendEquationAlpha,b.blendSrcAlpha,b.blendDstAlpha,b.premultipliedAlpha):g(0);t.setFunc(b.depthFunc);t.setTest(b.depthTest);t.setMask(b.depthWrite);n.setMask(b.colorWrite);l(b.polygonOffset,b.polygonOffsetFactor,b.polygonOffsetUnits)},setFlipSided:h,setCullFace:k,setLineWidth:function(b){b!==M&&(aa&&a.lineWidth(b),M=b)},setPolygonOffset:l,setScissorTest:function(b){b?e(a.SCISSOR_TEST):f(a.SCISSOR_TEST)},activeTexture:q,bindTexture:function(b,c){null===R&&q();var d=P[R];void 0===d&&(d=
+{type:void 0,texture:void 0},P[R]=d);if(d.type!==b||d.texture!==c)a.bindTexture(b,c||X[b]),d.type=b,d.texture=c},compressedTexImage2D:function(){try{a.compressedTexImage2D.apply(a,arguments)}catch(fa){console.error("THREE.WebGLState:",fa)}},texImage2D:function(){try{a.texImage2D.apply(a,arguments)}catch(fa){console.error("THREE.WebGLState:",fa)}},scissor:function(b){!1===Q.equals(b)&&(a.scissor(b.x,b.y,b.z,b.w),Q.copy(b))},viewport:function(b){!1===G.equals(b)&&(a.viewport(b.x,b.y,b.z,b.w),G.copy(b))},
+reset:function(){for(var b=0;b<w.length;b++)1===w[b]&&(a.disableVertexAttribArray(b),w[b]=0);z={};R=I=null;P={};H=D=J=B=null;n.reset();t.reset();r.reset()}}}function ng(a,b,c){function d(b){if("highp"===b){if(0<a.getShaderPrecisionFormat(a.VERTEX_SHADER,a.HIGH_FLOAT).precision&&0<a.getShaderPrecisionFormat(a.FRAGMENT_SHADER,a.HIGH_FLOAT).precision)return"highp";b="mediump"}return"mediump"===b&&0<a.getShaderPrecisionFormat(a.VERTEX_SHADER,a.MEDIUM_FLOAT).precision&&0<a.getShaderPrecisionFormat(a.FRAGMENT_SHADER,
+a.MEDIUM_FLOAT).precision?"mediump":"lowp"}var e,f=void 0!==c.precision?c.precision:"highp",g=d(f);g!==f&&(console.warn("THREE.WebGLRenderer:",f,"not supported, using",g,"instead."),f=g);c=!0===c.logarithmicDepthBuffer;var g=a.getParameter(a.MAX_TEXTURE_IMAGE_UNITS),h=a.getParameter(a.MAX_VERTEX_TEXTURE_IMAGE_UNITS),k=a.getParameter(a.MAX_TEXTURE_SIZE),l=a.getParameter(a.MAX_CUBE_MAP_TEXTURE_SIZE),q=a.getParameter(a.MAX_VERTEX_ATTRIBS),n=a.getParameter(a.MAX_VERTEX_UNIFORM_VECTORS),t=a.getParameter(a.MAX_VARYING_VECTORS),
+r=a.getParameter(a.MAX_FRAGMENT_UNIFORM_VECTORS),m=0<h,p=!!b.get("OES_texture_float");return{getMaxAnisotropy:function(){if(void 0!==e)return e;var c=b.get("EXT_texture_filter_anisotropic");return e=null!==c?a.getParameter(c.MAX_TEXTURE_MAX_ANISOTROPY_EXT):0},getMaxPrecision:d,precision:f,logarithmicDepthBuffer:c,maxTextures:g,maxVertexTextures:h,maxTextureSize:k,maxCubemapSize:l,maxAttributes:q,maxVertexUniforms:n,maxVaryings:t,maxFragmentUniforms:r,vertexTextures:m,floatFragmentTextures:p,floatVertexTextures:m&&
+p}}function U(a,b,c,d){La.call(this);this.type="PerspectiveCamera";this.fov=void 0!==a?a:50;this.zoom=1;this.near=void 0!==c?c:.1;this.far=void 0!==d?d:2E3;this.focus=10;this.aspect=void 0!==b?b:1;this.view=null;this.filmGauge=35;this.filmOffset=0;this.updateProjectionMatrix()}function nd(a){U.call(this);this.cameras=a||[]}function og(a){function b(){if(null!==d&&d.isPresenting){var b=d.getEyeParameters("left"),e=b.renderWidth,b=b.renderHeight;t=a.getPixelRatio();n=a.getSize();a.setDrawingBufferSize(2*
+e,b,1)}else c.enabled&&a.setDrawingBufferSize(n.width,n.height,t)}var c=this,d=null,e=null;"undefined"!==typeof window&&"VRFrameData"in window&&(e=new window.VRFrameData);var f=new K,g=new K,h=new K,k=new U;k.bounds=new da(0,0,.5,1);k.layers.enable(1);var l=new U;l.bounds=new da(.5,0,.5,1);l.layers.enable(2);var q=new nd([k,l]);q.layers.enable(1);q.layers.enable(2);var n,t;"undefined"!==typeof window&&window.addEventListener("vrdisplaypresentchange",b,!1);this.standing=this.enabled=!1;this.getDevice=
+function(){return d};this.setDevice=function(a){void 0!==a&&(d=a)};this.getCamera=function(a){if(null===d)return a;d.depthNear=a.near;d.depthFar=a.far;d.getFrameData(e);var b=e.pose;null!==b.position?a.position.fromArray(b.position):a.position.set(0,0,0);null!==b.orientation&&a.quaternion.fromArray(b.orientation);a.updateMatrixWorld();b=d.stageParameters;this.standing&&b&&(g.fromArray(b.sittingToStandingTransform),h.getInverse(g),a.matrixWorld.multiply(g),a.matrixWorldInverse.multiply(h));if(!1===
+d.isPresenting)return a;k.near=a.near;l.near=a.near;k.far=a.far;l.far=a.far;q.matrixWorld.copy(a.matrixWorld);q.matrixWorldInverse.copy(a.matrixWorldInverse);k.matrixWorldInverse.fromArray(e.leftViewMatrix);l.matrixWorldInverse.fromArray(e.rightViewMatrix);this.standing&&b&&(k.matrixWorldInverse.multiply(h),l.matrixWorldInverse.multiply(h));a=a.parent;null!==a&&(f.getInverse(a.matrixWorld),k.matrixWorldInverse.multiply(f),l.matrixWorldInverse.multiply(f));k.matrixWorld.getInverse(k.matrixWorldInverse);
+l.matrixWorld.getInverse(l.matrixWorldInverse);k.projectionMatrix.fromArray(e.leftProjectionMatrix);l.projectionMatrix.fromArray(e.rightProjectionMatrix);q.projectionMatrix.copy(k.projectionMatrix);a=d.getLayers();a.length&&(a=a[0],null!==a.leftBounds&&4===a.leftBounds.length&&k.bounds.fromArray(a.leftBounds),null!==a.rightBounds&&4===a.rightBounds.length&&l.bounds.fromArray(a.rightBounds));return q};this.getStandingMatrix=function(){return g};this.submitFrame=function(){d&&d.isPresenting&&d.submitFrame()};
+this.dispose=function(){"undefined"!==typeof window&&window.removeEventListener("vrdisplaypresentchange",b)}}function pg(a){var b={};return{get:function(c){if(void 0!==b[c])return b[c];switch(c){case "WEBGL_depth_texture":var d=a.getExtension("WEBGL_depth_texture")||a.getExtension("MOZ_WEBGL_depth_texture")||a.getExtension("WEBKIT_WEBGL_depth_texture");break;case "EXT_texture_filter_anisotropic":d=a.getExtension("EXT_texture_filter_anisotropic")||a.getExtension("MOZ_EXT_texture_filter_anisotropic")||
+a.getExtension("WEBKIT_EXT_texture_filter_anisotropic");break;case "WEBGL_compressed_texture_s3tc":d=a.getExtension("WEBGL_compressed_texture_s3tc")||a.getExtension("MOZ_WEBGL_compressed_texture_s3tc")||a.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");break;case "WEBGL_compressed_texture_pvrtc":d=a.getExtension("WEBGL_compressed_texture_pvrtc")||a.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");break;case "WEBGL_compressed_texture_etc1":d=a.getExtension("WEBGL_compressed_texture_etc1");
+break;default:d=a.getExtension(c)}null===d&&console.warn("THREE.WebGLRenderer: "+c+" extension not supported.");return b[c]=d}}}function qg(){function a(){l.value!==d&&(l.value=d,l.needsUpdate=0<e);c.numPlanes=e;c.numIntersection=0}function b(a,b,d,e){var f=null!==a?a.length:0,g=null;if(0!==f){g=l.value;if(!0!==e||null===g){e=d+4*f;b=b.matrixWorldInverse;k.getNormalMatrix(b);if(null===g||g.length<e)g=new Float32Array(e);for(e=0;e!==f;++e,d+=4)h.copy(a[e]).applyMatrix4(b,k),h.normal.toArray(g,d),g[d+
+3]=h.constant}l.value=g;l.needsUpdate=!0}c.numPlanes=f;return g}var c=this,d=null,e=0,f=!1,g=!1,h=new Aa,k=new ra,l={value:null,needsUpdate:!1};this.uniform=l;this.numIntersection=this.numPlanes=0;this.init=function(a,c,g){var h=0!==a.length||c||0!==e||f;f=c;d=b(a,g,0);e=a.length;return h};this.beginShadows=function(){g=!0;b(null)};this.endShadows=function(){g=!1;a()};this.setState=function(c,h,k,r,m,p){if(!f||null===c||0===c.length||g&&!k)g?b(null):a();else{k=g?0:e;var n=4*k,q=m.clippingState||null;
+l.value=q;q=b(c,r,n,p);for(c=0;c!==n;++c)q[c]=d[c];m.clippingState=q;this.numIntersection=h?this.numPlanes:0;this.numPlanes+=k}}}function Pe(a,b){return{convert:function(c){if(1E3===c)return a.REPEAT;if(1001===c)return a.CLAMP_TO_EDGE;if(1002===c)return a.MIRRORED_REPEAT;if(1003===c)return a.NEAREST;if(1004===c)return a.NEAREST_MIPMAP_NEAREST;if(1005===c)return a.NEAREST_MIPMAP_LINEAR;if(1006===c)return a.LINEAR;if(1007===c)return a.LINEAR_MIPMAP_NEAREST;if(1008===c)return a.LINEAR_MIPMAP_LINEAR;
+if(1009===c)return a.UNSIGNED_BYTE;if(1017===c)return a.UNSIGNED_SHORT_4_4_4_4;if(1018===c)return a.UNSIGNED_SHORT_5_5_5_1;if(1019===c)return a.UNSIGNED_SHORT_5_6_5;if(1010===c)return a.BYTE;if(1011===c)return a.SHORT;if(1012===c)return a.UNSIGNED_SHORT;if(1013===c)return a.INT;if(1014===c)return a.UNSIGNED_INT;if(1015===c)return a.FLOAT;if(1016===c){var d=b.get("OES_texture_half_float");if(null!==d)return d.HALF_FLOAT_OES}if(1021===c)return a.ALPHA;if(1022===c)return a.RGB;if(1023===c)return a.RGBA;
+if(1024===c)return a.LUMINANCE;if(1025===c)return a.LUMINANCE_ALPHA;if(1026===c)return a.DEPTH_COMPONENT;if(1027===c)return a.DEPTH_STENCIL;if(100===c)return a.FUNC_ADD;if(101===c)return a.FUNC_SUBTRACT;if(102===c)return a.FUNC_REVERSE_SUBTRACT;if(200===c)return a.ZERO;if(201===c)return a.ONE;if(202===c)return a.SRC_COLOR;if(203===c)return a.ONE_MINUS_SRC_COLOR;if(204===c)return a.SRC_ALPHA;if(205===c)return a.ONE_MINUS_SRC_ALPHA;if(206===c)return a.DST_ALPHA;if(207===c)return a.ONE_MINUS_DST_ALPHA;
+if(208===c)return a.DST_COLOR;if(209===c)return a.ONE_MINUS_DST_COLOR;if(210===c)return a.SRC_ALPHA_SATURATE;if(2001===c||2002===c||2003===c||2004===c)if(d=b.get("WEBGL_compressed_texture_s3tc"),null!==d){if(2001===c)return d.COMPRESSED_RGB_S3TC_DXT1_EXT;if(2002===c)return d.COMPRESSED_RGBA_S3TC_DXT1_EXT;if(2003===c)return d.COMPRESSED_RGBA_S3TC_DXT3_EXT;if(2004===c)return d.COMPRESSED_RGBA_S3TC_DXT5_EXT}if(2100===c||2101===c||2102===c||2103===c)if(d=b.get("WEBGL_compressed_texture_pvrtc"),null!==
+d){if(2100===c)return d.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;if(2101===c)return d.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;if(2102===c)return d.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;if(2103===c)return d.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG}if(2151===c&&(d=b.get("WEBGL_compressed_texture_etc1"),null!==d))return d.COMPRESSED_RGB_ETC1_WEBGL;if(103===c||104===c)if(d=b.get("EXT_blend_minmax"),null!==d){if(103===c)return d.MIN_EXT;if(104===c)return d.MAX_EXT}return 1020===c&&(d=b.get("WEBGL_depth_texture"),null!==d)?d.UNSIGNED_INT_24_8_WEBGL:
+0}}}function Wd(a){function b(){ia=new pg(F);ia.get("WEBGL_depth_texture");ia.get("OES_texture_float");ia.get("OES_texture_float_linear");ia.get("OES_texture_half_float");ia.get("OES_texture_half_float_linear");ia.get("OES_standard_derivatives");ia.get("OES_element_index_uint");ia.get("ANGLE_instanced_arrays");oa=new Pe(F,ia);Z=new ng(F,ia,a);ba=new mg(F,ia,oa);ba.scissor(S.copy(ea).multiplyScalar(O));ba.viewport(Q.copy(ca).multiplyScalar(O));U=new lg;T=new kg(F,ia,ba,U,Z,oa,Vd);na=new Mf(F);pa=new Zf(F,
+na,Vd);ra=new bg(pa,Ra);va=new Wf(F);ma=new jg(L,ia,Z);sa=new ag;qa=new Uf;ja=new Qf(L,ba,pa,J);wa=new Yf(F,ia,Ra);xa=new Xf(F,ia,Ra);ya=new Jf(L,F,ba,T,Z);Aa=new Kf(L,F,ba,T,Z);L.info.programs=ma.programs;L.context=F;L.capabilities=Z;L.extensions=ia;L.properties=U;L.renderLists=qa;L.state=ba}function c(a){a.preventDefault();console.log("THREE.WebGLRenderer: Context Lost.");Y=!0}function d(){console.log("THREE.WebGLRenderer: Context Restored.");Y=!1;b()}function e(a){a=a.target;a.removeEventListener("dispose",
+e);f(a);U.remove(a)}function f(a){var b=U.get(a).program;a.program=void 0;void 0!==b&&ma.releaseProgram(b)}function g(a,b,c){a.render(function(a){L.renderBufferImmediate(a,b,c)})}function h(a){null!==Ba&&Ba(a);(a=ka.getDevice())&&a.isPresenting?a.requestAnimationFrame(h):window.requestAnimationFrame(h)}function k(a,b,c){if(!1!==a.visible){if(a.layers.test(b.layers))if(a.isLight)y.push(a),a.castShadow&&C.push(a);else if(a.isSprite)a.frustumCulled&&!Td.intersectsSprite(a)||D.push(a);else if(a.isLensFlare)Va.push(a);
+else if(a.isImmediateRenderObject)c&&Nb.setFromMatrixPosition(a.matrixWorld).applyMatrix4(md),A.push(a,null,a.material,Nb.z,null);else if(a.isMesh||a.isLine||a.isPoints)if(a.isSkinnedMesh&&a.skeleton.update(),!a.frustumCulled||Td.intersectsObject(a)){c&&Nb.setFromMatrixPosition(a.matrixWorld).applyMatrix4(md);var d=ra.update(a),e=a.material;if(Array.isArray(e))for(var f=d.groups,g=0,h=f.length;g<h;g++){var l=f[g],n=e[l.materialIndex];n&&n.visible&&A.push(a,d,n,Nb.z,l)}else e.visible&&A.push(a,d,e,
+Nb.z,null)}a=a.children;g=0;for(h=a.length;g<h;g++)k(a[g],b,c)}}function l(a,b,c,d){for(var e=0,f=a.length;e<f;e++){var g=a[e],h=g.object,l=g.geometry,k=void 0===d?g.material:d,g=g.group;if(c.isArrayCamera){aa=c;for(var n=c.cameras,t=0,r=n.length;t<r;t++){var m=n[t];if(h.layers.test(m.layers)){var u=m.bounds;ba.viewport(Q.set(u.x*X,u.y*fa,u.z*X,u.w*fa).multiplyScalar(O));q(h,b,m,l,k,g)}}}else aa=null,q(h,b,c,l,k,g)}}function q(a,b,c,d,e,f){a.onBeforeRender(L,b,c,d,e,f);a.modelViewMatrix.multiplyMatrices(c.matrixWorldInverse,
+a.matrixWorld);a.normalMatrix.getNormalMatrix(a.modelViewMatrix);if(a.isImmediateRenderObject){ba.setMaterial(e);var h=t(c,b.fog,e,a);N="";g(a,h,e)}else L.renderBufferDirect(c,b.fog,d,e,a,f);a.onAfterRender(L,b,c,d,e,f)}function n(a,b,c){var d=U.get(a);c=ma.getParameters(a,sa.state,C,b,Fa.numPlanes,Fa.numIntersection,c);var g=ma.getProgramCode(a,c),h=d.program,l=!0;if(void 0===h)a.addEventListener("dispose",e);else if(h.code!==g)f(a);else{if(void 0!==c.shaderID)return;l=!1}l&&(c.shaderID?(h=mb[c.shaderID],
+d.shader={name:a.type,uniforms:Ea.clone(h.uniforms),vertexShader:h.vertexShader,fragmentShader:h.fragmentShader}):d.shader={name:a.type,uniforms:a.uniforms,vertexShader:a.vertexShader,fragmentShader:a.fragmentShader},a.onBeforeCompile(d.shader),h=ma.acquireProgram(a,d.shader,c,g),d.program=h,a.program=h);c=h.getAttributes();if(a.morphTargets)for(g=a.numSupportedMorphTargets=0;g<L.maxMorphTargets;g++)0<=c["morphTarget"+g]&&a.numSupportedMorphTargets++;if(a.morphNormals)for(g=a.numSupportedMorphNormals=
+0;g<L.maxMorphNormals;g++)0<=c["morphNormal"+g]&&a.numSupportedMorphNormals++;c=d.shader.uniforms;if(!a.isShaderMaterial&&!a.isRawShaderMaterial||!0===a.clipping)d.numClippingPlanes=Fa.numPlanes,d.numIntersection=Fa.numIntersection,c.clippingPlanes=Fa.uniform;d.fog=b;d.lightsHash=sa.state.hash;a.lights&&(c.ambientLightColor.value=sa.state.ambient,c.directionalLights.value=sa.state.directional,c.spotLights.value=sa.state.spot,c.rectAreaLights.value=sa.state.rectArea,c.pointLights.value=sa.state.point,
+c.hemisphereLights.value=sa.state.hemi,c.directionalShadowMap.value=sa.state.directionalShadowMap,c.directionalShadowMatrix.value=sa.state.directionalShadowMatrix,c.spotShadowMap.value=sa.state.spotShadowMap,c.spotShadowMatrix.value=sa.state.spotShadowMatrix,c.pointShadowMap.value=sa.state.pointShadowMap,c.pointShadowMatrix.value=sa.state.pointShadowMatrix);a=d.program.getUniforms();a=gb.seqWithValue(a.seq,c);d.uniformsList=a}function t(a,b,c,d){G=0;var e=U.get(c);ga&&(Ud||a!==P)&&Fa.setState(c.clippingPlanes,
+c.clipIntersection,c.clipShadows,a,e,a===P&&c.id===V);!1===c.needsUpdate&&(void 0===e.program?c.needsUpdate=!0:c.fog&&e.fog!==b?c.needsUpdate=!0:c.lights&&e.lightsHash!==sa.state.hash?c.needsUpdate=!0:void 0===e.numClippingPlanes||e.numClippingPlanes===Fa.numPlanes&&e.numIntersection===Fa.numIntersection||(c.needsUpdate=!0));c.needsUpdate&&(n(c,b,d),c.needsUpdate=!1);var f=!1,g=!1,h=!1,l=e.program,k=l.getUniforms(),q=e.shader.uniforms;ba.useProgram(l.program)&&(h=g=f=!0);c.id!==V&&(V=c.id,g=!0);if(f||
+a!==P){k.setValue(F,"projectionMatrix",a.projectionMatrix);Z.logarithmicDepthBuffer&&k.setValue(F,"logDepthBufFC",2/(Math.log(a.far+1)/Math.LN2));P!==(aa||a)&&(P=aa||a,h=g=!0);if(c.isShaderMaterial||c.isMeshPhongMaterial||c.isMeshStandardMaterial||c.envMap)f=k.map.cameraPosition,void 0!==f&&f.setValue(F,Nb.setFromMatrixPosition(a.matrixWorld));(c.isMeshPhongMaterial||c.isMeshLambertMaterial||c.isMeshBasicMaterial||c.isMeshStandardMaterial||c.isShaderMaterial||c.skinning)&&k.setValue(F,"viewMatrix",
+a.matrixWorldInverse)}if(c.skinning&&(k.setOptional(F,d,"bindMatrix"),k.setOptional(F,d,"bindMatrixInverse"),a=d.skeleton))if(f=a.bones,Z.floatVertexTextures){if(void 0===a.boneTexture){var f=Math.sqrt(4*f.length),f=R.ceilPowerOfTwo(f),f=Math.max(f,4),t=new Float32Array(f*f*4);t.set(a.boneMatrices);var u=new fb(t,f,f,1023,1015);a.boneMatrices=t;a.boneTexture=u;a.boneTextureSize=f}k.setValue(F,"boneTexture",a.boneTexture);k.setValue(F,"boneTextureSize",a.boneTextureSize)}else k.setOptional(F,a,"boneMatrices");
+g&&(k.setValue(F,"toneMappingExposure",L.toneMappingExposure),k.setValue(F,"toneMappingWhitePoint",L.toneMappingWhitePoint),c.lights&&(g=h,q.ambientLightColor.needsUpdate=g,q.directionalLights.needsUpdate=g,q.pointLights.needsUpdate=g,q.spotLights.needsUpdate=g,q.rectAreaLights.needsUpdate=g,q.hemisphereLights.needsUpdate=g),b&&c.fog&&(q.fogColor.value=b.color,b.isFog?(q.fogNear.value=b.near,q.fogFar.value=b.far):b.isFogExp2&&(q.fogDensity.value=b.density)),c.isMeshBasicMaterial?r(q,c):c.isMeshLambertMaterial?
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+(q.emissiveMap.value=c.emissiveMap),c.bumpMap&&(q.bumpMap.value=c.bumpMap,q.bumpScale.value=c.bumpScale),c.normalMap&&(q.normalMap.value=c.normalMap,q.normalScale.value.copy(c.normalScale)),c.displacementMap&&(q.displacementMap.value=c.displacementMap,q.displacementScale.value=c.displacementScale,q.displacementBias.value=c.displacementBias),c.envMap&&(q.envMapIntensity.value=c.envMapIntensity)):c.isMeshDepthMaterial?(r(q,c),c.displacementMap&&(q.displacementMap.value=c.displacementMap,q.displacementScale.value=
+c.displacementScale,q.displacementBias.value=c.displacementBias)):c.isMeshDistanceMaterial?(r(q,c),c.displacementMap&&(q.displacementMap.value=c.displacementMap,q.displacementScale.value=c.displacementScale,q.displacementBias.value=c.displacementBias),q.referencePosition.value.copy(c.referencePosition),q.nearDistance.value=c.nearDistance,q.farDistance.value=c.farDistance):c.isMeshNormalMaterial?(r(q,c),c.bumpMap&&(q.bumpMap.value=c.bumpMap,q.bumpScale.value=c.bumpScale),c.normalMap&&(q.normalMap.value=
+c.normalMap,q.normalScale.value.copy(c.normalScale)),c.displacementMap&&(q.displacementMap.value=c.displacementMap,q.displacementScale.value=c.displacementScale,q.displacementBias.value=c.displacementBias)):c.isLineBasicMaterial?(q.diffuse.value=c.color,q.opacity.value=c.opacity,c.isLineDashedMaterial&&(q.dashSize.value=c.dashSize,q.totalSize.value=c.dashSize+c.gapSize,q.scale.value=c.scale)):c.isPointsMaterial?(q.diffuse.value=c.color,q.opacity.value=c.opacity,q.size.value=c.size*O,q.scale.value=
+.5*fa,q.map.value=c.map,null!==c.map&&(!0===c.map.matrixAutoUpdate&&(b=c.map.offset,g=c.map.repeat,h=c.map.center,c.map.matrix.setUvTransform(b.x,b.y,g.x,g.y,c.map.rotation,h.x,h.y)),q.uvTransform.value.copy(c.map.matrix))):c.isShadowMaterial&&(q.color.value=c.color,q.opacity.value=c.opacity),void 0!==q.ltcMat&&(q.ltcMat.value=E.LTC_MAT_TEXTURE),void 0!==q.ltcMag&&(q.ltcMag.value=E.LTC_MAG_TEXTURE),gb.upload(F,e.uniformsList,q,L));k.setValue(F,"modelViewMatrix",d.modelViewMatrix);k.setValue(F,"normalMatrix",
+d.normalMatrix);k.setValue(F,"modelMatrix",d.matrixWorld);return l}function r(a,b){a.opacity.value=b.opacity;b.color&&(a.diffuse.value=b.color);b.emissive&&a.emissive.value.copy(b.emissive).multiplyScalar(b.emissiveIntensity);b.map&&(a.map.value=b.map);b.alphaMap&&(a.alphaMap.value=b.alphaMap);b.specularMap&&(a.specularMap.value=b.specularMap);b.envMap&&(a.envMap.value=b.envMap,a.flipEnvMap.value=b.envMap&&b.envMap.isCubeTexture?-1:1,a.reflectivity.value=b.reflectivity,a.refractionRatio.value=b.refractionRatio);
+b.lightMap&&(a.lightMap.value=b.lightMap,a.lightMapIntensity.value=b.lightMapIntensity);b.aoMap&&(a.aoMap.value=b.aoMap,a.aoMapIntensity.value=b.aoMapIntensity);if(b.map)var c=b.map;else b.specularMap?c=b.specularMap:b.displacementMap?c=b.displacementMap:b.normalMap?c=b.normalMap:b.bumpMap?c=b.bumpMap:b.roughnessMap?c=b.roughnessMap:b.metalnessMap?c=b.metalnessMap:b.alphaMap?c=b.alphaMap:b.emissiveMap&&(c=b.emissiveMap);if(void 0!==c){c.isWebGLRenderTarget&&(c=c.texture);if(!0===c.matrixAutoUpdate){b=
+c.offset;var d=c.repeat,e=c.center;c.matrix.setUvTransform(b.x,b.y,d.x,d.y,c.rotation,e.x,e.y)}a.uvTransform.value.copy(c.matrix)}}function m(a,b){a.specular.value=b.specular;a.shininess.value=Math.max(b.shininess,1E-4);b.emissiveMap&&(a.emissiveMap.value=b.emissiveMap);b.bumpMap&&(a.bumpMap.value=b.bumpMap,a.bumpScale.value=b.bumpScale);b.normalMap&&(a.normalMap.value=b.normalMap,a.normalScale.value.copy(b.normalScale));b.displacementMap&&(a.displacementMap.value=b.displacementMap,a.displacementScale.value=
+b.displacementScale,a.displacementBias.value=b.displacementBias)}console.log("THREE.WebGLRenderer","88");a=a||{};var v=void 0!==a.canvas?a.canvas:document.createElementNS("http://www.w3.org/1999/xhtml","canvas"),w=void 0!==a.context?a.context:null,x=void 0!==a.alpha?a.alpha:!1,z=void 0!==a.depth?a.depth:!0,I=void 0!==a.stencil?a.stencil:!0,B=void 0!==a.antialias?a.antialias:!1,J=void 0!==a.premultipliedAlpha?a.premultipliedAlpha:!0,ta=void 0!==a.preserveDrawingBuffer?a.preserveDrawingBuffer:!1,y=
+[],C=[],A=null,D=[],Va=[];this.domElement=v;this.context=null;this.sortObjects=this.autoClearStencil=this.autoClearDepth=this.autoClearColor=this.autoClear=!0;this.clippingPlanes=[];this.localClippingEnabled=!1;this.gammaFactor=2;this.physicallyCorrectLights=this.gammaOutput=this.gammaInput=!1;this.toneMappingWhitePoint=this.toneMappingExposure=this.toneMapping=1;this.maxMorphTargets=8;this.maxMorphNormals=4;var L=this,Y=!1,H=null,M=null,V=-1,N="",P=null,aa=null,Q=new da,S=new da,W=null,G=0,X=v.width,
+fa=v.height,O=1,ca=new da(0,0,X,fa),ea=new da(0,0,X,fa),Oe=!1,Td=new ld,Fa=new qg,ga=!1,Ud=!1,md=new K,Nb=new p,Vd={geometries:0,textures:0},Ra={frame:0,calls:0,vertices:0,faces:0,points:0};this.info={render:Ra,memory:Vd,programs:null};try{x={alpha:x,depth:z,stencil:I,antialias:B,premultipliedAlpha:J,preserveDrawingBuffer:ta};var F=w||v.getContext("webgl",x)||v.getContext("experimental-webgl",x);if(null===F){if(null!==v.getContext("webgl"))throw"Error creating WebGL context with your selected attributes.";
+throw"Error creating WebGL context.";}void 0===F.getShaderPrecisionFormat&&(F.getShaderPrecisionFormat=function(){return{rangeMin:1,rangeMax:1,precision:1}});v.addEventListener("webglcontextlost",c,!1);v.addEventListener("webglcontextrestored",d,!1)}catch(rg){console.error("THREE.WebGLRenderer: "+rg)}var ia,Z,ba,U,T,na,pa,ra,sa,ma,qa,ja,va,wa,xa,ya,Aa,oa;b();var ka=new og(L);this.vr=ka;var Ca=new Ie(L,ra,Z.maxTextureSize);this.shadowMap=Ca;this.getContext=function(){return F};this.getContextAttributes=
+function(){return F.getContextAttributes()};this.forceContextLoss=function(){var a=ia.get("WEBGL_lose_context");a&&a.loseContext()};this.forceContextRestore=function(){var a=ia.get("WEBGL_lose_context");a&&a.restoreContext()};this.getPixelRatio=function(){return O};this.setPixelRatio=function(a){void 0!==a&&(O=a,this.setSize(X,fa,!1))};this.getSize=function(){return{width:X,height:fa}};this.setSize=function(a,b,c){var d=ka.getDevice();d&&d.isPresenting?console.warn("THREE.WebGLRenderer: Can't change size while VR device is presenting."):
+(X=a,fa=b,v.width=a*O,v.height=b*O,!1!==c&&(v.style.width=a+"px",v.style.height=b+"px"),this.setViewport(0,0,a,b))};this.getDrawingBufferSize=function(){return{width:X*O,height:fa*O}};this.setDrawingBufferSize=function(a,b,c){X=a;fa=b;O=c;v.width=a*c;v.height=b*c;this.setViewport(0,0,a,b)};this.setViewport=function(a,b,c,d){ca.set(a,fa-b-d,c,d);ba.viewport(Q.copy(ca).multiplyScalar(O))};this.setScissor=function(a,b,c,d){ea.set(a,fa-b-d,c,d);ba.scissor(S.copy(ea).multiplyScalar(O))};this.setScissorTest=
+function(a){ba.setScissorTest(Oe=a)};this.getClearColor=function(){return ja.getClearColor()};this.setClearColor=function(){ja.setClearColor.apply(ja,arguments)};this.getClearAlpha=function(){return ja.getClearAlpha()};this.setClearAlpha=function(){ja.setClearAlpha.apply(ja,arguments)};this.clear=function(a,b,c){var d=0;if(void 0===a||a)d|=F.COLOR_BUFFER_BIT;if(void 0===b||b)d|=F.DEPTH_BUFFER_BIT;if(void 0===c||c)d|=F.STENCIL_BUFFER_BIT;F.clear(d)};this.clearColor=function(){this.clear(!0,!1,!1)};
+this.clearDepth=function(){this.clear(!1,!0,!1)};this.clearStencil=function(){this.clear(!1,!1,!0)};this.clearTarget=function(a,b,c,d){this.setRenderTarget(a);this.clear(b,c,d)};this.dispose=function(){v.removeEventListener("webglcontextlost",c,!1);v.removeEventListener("webglcontextrestored",d,!1);qa.dispose();ka.dispose()};this.renderBufferImmediate=function(a,b,c){ba.initAttributes();var d=U.get(a);a.hasPositions&&!d.position&&(d.position=F.createBuffer());a.hasNormals&&!d.normal&&(d.normal=F.createBuffer());
+a.hasUvs&&!d.uv&&(d.uv=F.createBuffer());a.hasColors&&!d.color&&(d.color=F.createBuffer());b=b.getAttributes();a.hasPositions&&(F.bindBuffer(F.ARRAY_BUFFER,d.position),F.bufferData(F.ARRAY_BUFFER,a.positionArray,F.DYNAMIC_DRAW),ba.enableAttribute(b.position),F.vertexAttribPointer(b.position,3,F.FLOAT,!1,0,0));if(a.hasNormals){F.bindBuffer(F.ARRAY_BUFFER,d.normal);if(!c.isMeshPhongMaterial&&!c.isMeshStandardMaterial&&!c.isMeshNormalMaterial&&!0===c.flatShading)for(var e=0,f=3*a.count;e<f;e+=9){var g=
+a.normalArray,h=(g[e+0]+g[e+3]+g[e+6])/3,l=(g[e+1]+g[e+4]+g[e+7])/3,k=(g[e+2]+g[e+5]+g[e+8])/3;g[e+0]=h;g[e+1]=l;g[e+2]=k;g[e+3]=h;g[e+4]=l;g[e+5]=k;g[e+6]=h;g[e+7]=l;g[e+8]=k}F.bufferData(F.ARRAY_BUFFER,a.normalArray,F.DYNAMIC_DRAW);ba.enableAttribute(b.normal);F.vertexAttribPointer(b.normal,3,F.FLOAT,!1,0,0)}a.hasUvs&&c.map&&(F.bindBuffer(F.ARRAY_BUFFER,d.uv),F.bufferData(F.ARRAY_BUFFER,a.uvArray,F.DYNAMIC_DRAW),ba.enableAttribute(b.uv),F.vertexAttribPointer(b.uv,2,F.FLOAT,!1,0,0));a.hasColors&&
+0!==c.vertexColors&&(F.bindBuffer(F.ARRAY_BUFFER,d.color),F.bufferData(F.ARRAY_BUFFER,a.colorArray,F.DYNAMIC_DRAW),ba.enableAttribute(b.color),F.vertexAttribPointer(b.color,3,F.FLOAT,!1,0,0));ba.disableUnusedAttributes();F.drawArrays(F.TRIANGLES,0,a.count);a.count=0};this.renderBufferDirect=function(a,b,c,d,e,f){ba.setMaterial(d);var g=t(a,b,d,e);a=c.id+"_"+g.id+"_"+(!0===d.wireframe);var h=!1;a!==N&&(N=a,h=!0);e.morphTargetInfluences&&(va.update(e,c,d,g),h=!0);var l=c.index,k=c.attributes.position;
+b=1;!0===d.wireframe&&(l=pa.getWireframeAttribute(c),b=2);a=wa;if(null!==l){var n=na.get(l);a=xa;a.setIndex(n)}if(h){h=void 0;if(c&&c.isInstancedBufferGeometry&&null===ia.get("ANGLE_instanced_arrays"))console.error("THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.");else{void 0===h&&(h=0);ba.initAttributes();var q=c.attributes,g=g.getAttributes(),r=d.defaultAttributeValues;for(J in g){var m=g[J];if(0<=m){var u=
+q[J];if(void 0!==u){var p=u.normalized,v=u.itemSize,w=na.get(u);if(void 0!==w){var z=w.buffer,x=w.type,w=w.bytesPerElement;if(u.isInterleavedBufferAttribute){var B=u.data,I=B.stride,u=u.offset;B&&B.isInstancedInterleavedBuffer?(ba.enableAttributeAndDivisor(m,B.meshPerAttribute),void 0===c.maxInstancedCount&&(c.maxInstancedCount=B.meshPerAttribute*B.count)):ba.enableAttribute(m);F.bindBuffer(F.ARRAY_BUFFER,z);F.vertexAttribPointer(m,v,x,p,I*w,(h*I+u)*w)}else u.isInstancedBufferAttribute?(ba.enableAttributeAndDivisor(m,
+u.meshPerAttribute),void 0===c.maxInstancedCount&&(c.maxInstancedCount=u.meshPerAttribute*u.count)):ba.enableAttribute(m),F.bindBuffer(F.ARRAY_BUFFER,z),F.vertexAttribPointer(m,v,x,p,0,h*v*w)}}else if(void 0!==r&&(p=r[J],void 0!==p))switch(p.length){case 2:F.vertexAttrib2fv(m,p);break;case 3:F.vertexAttrib3fv(m,p);break;case 4:F.vertexAttrib4fv(m,p);break;default:F.vertexAttrib1fv(m,p)}}}ba.disableUnusedAttributes()}null!==l&&F.bindBuffer(F.ELEMENT_ARRAY_BUFFER,n.buffer)}n=0;null!==l?n=l.count:void 0!==
+k&&(n=k.count);l=c.drawRange.start*b;k=null!==f?f.start*b:0;var J=Math.max(l,k);f=Math.max(0,Math.min(n,l+c.drawRange.count*b,k+(null!==f?f.count*b:Infinity))-1-J+1);if(0!==f){if(e.isMesh)if(!0===d.wireframe)ba.setLineWidth(d.wireframeLinewidth*(null===H?O:1)),a.setMode(F.LINES);else switch(e.drawMode){case 0:a.setMode(F.TRIANGLES);break;case 1:a.setMode(F.TRIANGLE_STRIP);break;case 2:a.setMode(F.TRIANGLE_FAN)}else e.isLine?(d=d.linewidth,void 0===d&&(d=1),ba.setLineWidth(d*(null===H?O:1)),e.isLineSegments?
+a.setMode(F.LINES):e.isLineLoop?a.setMode(F.LINE_LOOP):a.setMode(F.LINE_STRIP)):e.isPoints&&a.setMode(F.POINTS);c&&c.isInstancedBufferGeometry?0<c.maxInstancedCount&&a.renderInstances(c,J,f):a.render(J,f)}};this.compile=function(a,b){y.length=0;C.length=0;a.traverse(function(a){a.isLight&&(y.push(a),a.castShadow&&C.push(a))});sa.setup(y,C,b);a.traverse(function(b){if(b.material)if(Array.isArray(b.material))for(var c=0;c<b.material.length;c++)n(b.material[c],a.fog,b);else n(b.material,a.fog,b)})};
+var Da=!1,Ba=null;this.animate=function(a){Ba=a;Da||((a=ka.getDevice())&&a.isPresenting?a.requestAnimationFrame(h):window.requestAnimationFrame(h),Da=!0)};this.render=function(a,b,c,d){if(!b||!b.isCamera)console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");else if(!Y){N="";V=-1;P=null;!0===a.autoUpdate&&a.updateMatrixWorld();null===b.parent&&b.updateMatrixWorld();ka.enabled&&(b=ka.getCamera(b));md.multiplyMatrices(b.projectionMatrix,b.matrixWorldInverse);Td.setFromMatrix(md);
+y.length=0;C.length=0;D.length=0;Va.length=0;Ud=this.localClippingEnabled;ga=Fa.init(this.clippingPlanes,Ud,b);A=qa.get(a,b);A.init();k(a,b,L.sortObjects);!0===L.sortObjects&&A.sort();ga&&Fa.beginShadows();Ca.render(C,a,b);sa.setup(y,C,b);ga&&Fa.endShadows();Ra.frame++;Ra.calls=0;Ra.vertices=0;Ra.faces=0;Ra.points=0;void 0===c&&(c=null);this.setRenderTarget(c);ja.render(A,a,b,d);d=A.opaque;var e=A.transparent;if(a.overrideMaterial){var f=a.overrideMaterial;d.length&&l(d,a,b,f);e.length&&l(e,a,b,f)}else d.length&&
+l(d,a,b),e.length&&l(e,a,b);Aa.render(D,a,b);ya.render(Va,a,b,Q);c&&T.updateRenderTargetMipmap(c);ba.buffers.depth.setTest(!0);ba.buffers.depth.setMask(!0);ba.buffers.color.setMask(!0);ba.setPolygonOffset(!1);ka.enabled&&ka.submitFrame()}};this.setFaceCulling=function(a,b){ba.setCullFace(a);ba.setFlipSided(0===b)};this.allocTextureUnit=function(){var a=G;a>=Z.maxTextures&&console.warn("THREE.WebGLRenderer: Trying to use "+a+" texture units while this GPU supports only "+Z.maxTextures);G+=1;return a};
+this.setTexture2D=function(){var a=!1;return function(b,c){b&&b.isWebGLRenderTarget&&(a||(console.warn("THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead."),a=!0),b=b.texture);T.setTexture2D(b,c)}}();this.setTexture=function(){var a=!1;return function(b,c){a||(console.warn("THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead."),a=!0);T.setTexture2D(b,c)}}();this.setTextureCube=function(){var a=!1;return function(b,c){b&&
+b.isWebGLRenderTargetCube&&(a||(console.warn("THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead."),a=!0),b=b.texture);b&&b.isCubeTexture||Array.isArray(b.image)&&6===b.image.length?T.setTextureCube(b,c):T.setTextureCubeDynamic(b,c)}}();this.getRenderTarget=function(){return H};this.setRenderTarget=function(a){(H=a)&&void 0===U.get(a).__webglFramebuffer&&T.setupRenderTarget(a);var b=null,c=!1;a?(b=U.get(a).__webglFramebuffer,a.isWebGLRenderTargetCube&&
+(b=b[a.activeCubeFace],c=!0),Q.copy(a.viewport),S.copy(a.scissor),W=a.scissorTest):(Q.copy(ca).multiplyScalar(O),S.copy(ea).multiplyScalar(O),W=Oe);M!==b&&(F.bindFramebuffer(F.FRAMEBUFFER,b),M=b);ba.viewport(Q);ba.scissor(S);ba.setScissorTest(W);c&&(c=U.get(a.texture),F.framebufferTexture2D(F.FRAMEBUFFER,F.COLOR_ATTACHMENT0,F.TEXTURE_CUBE_MAP_POSITIVE_X+a.activeCubeFace,c.__webglTexture,a.activeMipMapLevel))};this.readRenderTargetPixels=function(a,b,c,d,e,f){if(a&&a.isWebGLRenderTarget){var g=U.get(a).__webglFramebuffer;
+if(g){var h=!1;g!==M&&(F.bindFramebuffer(F.FRAMEBUFFER,g),h=!0);try{var l=a.texture,k=l.format,n=l.type;1023!==k&&oa.convert(k)!==F.getParameter(F.IMPLEMENTATION_COLOR_READ_FORMAT)?console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format."):1009===n||oa.convert(n)===F.getParameter(F.IMPLEMENTATION_COLOR_READ_TYPE)||1015===n&&(ia.get("OES_texture_float")||ia.get("WEBGL_color_buffer_float"))||1016===n&&ia.get("EXT_color_buffer_half_float")?
+F.checkFramebufferStatus(F.FRAMEBUFFER)===F.FRAMEBUFFER_COMPLETE?0<=b&&b<=a.width-d&&0<=c&&c<=a.height-e&&F.readPixels(b,c,d,e,oa.convert(k),oa.convert(n),f):console.error("THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete."):console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.")}finally{h&&F.bindFramebuffer(F.FRAMEBUFFER,M)}}}else console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.")}}
+function Ob(a,b){this.name="";this.color=new H(a);this.density=void 0!==b?b:2.5E-4}function Pb(a,b,c){this.name="";this.color=new H(a);this.near=void 0!==b?b:1;this.far=void 0!==c?c:1E3}function od(){A.call(this);this.type="Scene";this.overrideMaterial=this.fog=this.background=null;this.autoUpdate=!0}function Xd(a,b,c,d,e){A.call(this);this.lensFlares=[];this.positionScreen=new p;this.customUpdateCallback=void 0;void 0!==a&&this.add(a,b,c,d,e)}function Za(a){Q.call(this);this.type="SpriteMaterial";
+this.color=new H(16777215);this.map=null;this.rotation=0;this.lights=this.fog=!1;this.setValues(a)}function Cc(a){A.call(this);this.type="Sprite";this.material=void 0!==a?a:new Za}function Dc(){A.call(this);this.type="LOD";Object.defineProperties(this,{levels:{enumerable:!0,value:[]}})}function Ec(a,b){a=a||[];this.bones=a.slice(0);this.boneMatrices=new Float32Array(16*this.bones.length);if(void 0===b)this.calculateInverses();else if(this.bones.length===b.length)this.boneInverses=b.slice(0);else for(console.warn("THREE.Skeleton boneInverses is the wrong length."),
+this.boneInverses=[],a=0,b=this.bones.length;a<b;a++)this.boneInverses.push(new K)}function pd(){A.call(this);this.type="Bone"}function qd(a,b){pa.call(this,a,b);this.type="SkinnedMesh";this.bindMode="attached";this.bindMatrix=new K;this.bindMatrixInverse=new K;a=this.initBones();a=new Ec(a);this.bind(a,this.matrixWorld);this.normalizeSkinWeights()}function O(a){Q.call(this);this.type="LineBasicMaterial";this.color=new H(16777215);this.linewidth=1;this.linejoin=this.linecap="round";this.lights=!1;
+this.setValues(a)}function ma(a,b,c){if(1===c)return console.warn("THREE.Line: parameter THREE.LinePieces no longer supported. Created THREE.LineSegments instead."),new ca(a,b);A.call(this);this.type="Line";this.geometry=void 0!==a?a:new D;this.material=void 0!==b?b:new O({color:16777215*Math.random()})}function ca(a,b){ma.call(this,a,b);this.type="LineSegments"}function rd(a,b){ma.call(this,a,b);this.type="LineLoop"}function Ba(a){Q.call(this);this.type="PointsMaterial";this.color=new H(16777215);
+this.map=null;this.size=1;this.sizeAttenuation=!0;this.lights=!1;this.setValues(a)}function Qb(a,b){A.call(this);this.type="Points";this.geometry=void 0!==a?a:new D;this.material=void 0!==b?b:new Ba({color:16777215*Math.random()})}function Fc(){A.call(this);this.type="Group"}function sd(a,b,c,d,e,f,g,h,k){function l(){var a=q.image;a.readyState>=a.HAVE_CURRENT_DATA&&(q.needsUpdate=!0);requestAnimationFrame(l)}ea.call(this,a,b,c,d,e,f,g,h,k);this.generateMipmaps=!1;var q=this;requestAnimationFrame(l)}
+function Rb(a,b,c,d,e,f,g,h,k,l,q,n){ea.call(this,null,f,g,h,k,l,d,e,q,n);this.image={width:b,height:c};this.mipmaps=a;this.generateMipmaps=this.flipY=!1}function Gc(a,b,c,d,e,f,g,h,k,l){l=void 0!==l?l:1026;if(1026!==l&&1027!==l)throw Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");void 0===c&&1026===l&&(c=1012);void 0===c&&1027===l&&(c=1020);ea.call(this,null,d,e,f,g,h,l,c,k);this.image={width:a,height:b};this.magFilter=void 0!==g?g:1003;this.minFilter=void 0!==
+h?h:1003;this.generateMipmaps=this.flipY=!1}function Sb(a){D.call(this);this.type="WireframeGeometry";var b=[],c,d,e,f=[0,0],g={},h=["a","b","c"];if(a&&a.isGeometry){var k=a.faces;var l=0;for(d=k.length;l<d;l++){var q=k[l];for(c=0;3>c;c++){var n=q[h[c]];var t=q[h[(c+1)%3]];f[0]=Math.min(n,t);f[1]=Math.max(n,t);n=f[0]+","+f[1];void 0===g[n]&&(g[n]={index1:f[0],index2:f[1]})}}for(n in g)l=g[n],h=a.vertices[l.index1],b.push(h.x,h.y,h.z),h=a.vertices[l.index2],b.push(h.x,h.y,h.z)}else if(a&&a.isBufferGeometry){var h=
+new p;if(null!==a.index){k=a.attributes.position;q=a.index;var r=a.groups;0===r.length&&(r=[{start:0,count:q.count,materialIndex:0}]);a=0;for(e=r.length;a<e;++a)for(l=r[a],c=l.start,d=l.count,l=c,d=c+d;l<d;l+=3)for(c=0;3>c;c++)n=q.getX(l+c),t=q.getX(l+(c+1)%3),f[0]=Math.min(n,t),f[1]=Math.max(n,t),n=f[0]+","+f[1],void 0===g[n]&&(g[n]={index1:f[0],index2:f[1]});for(n in g)l=g[n],h.fromBufferAttribute(k,l.index1),b.push(h.x,h.y,h.z),h.fromBufferAttribute(k,l.index2),b.push(h.x,h.y,h.z)}else for(k=a.attributes.position,
+l=0,d=k.count/3;l<d;l++)for(c=0;3>c;c++)g=3*l+c,h.fromBufferAttribute(k,g),b.push(h.x,h.y,h.z),g=3*l+(c+1)%3,h.fromBufferAttribute(k,g),b.push(h.x,h.y,h.z)}this.addAttribute("position",new y(b,3))}function Hc(a,b,c){N.call(this);this.type="ParametricGeometry";this.parameters={func:a,slices:b,stacks:c};this.fromBufferGeometry(new Tb(a,b,c));this.mergeVertices()}function Tb(a,b,c){D.call(this);this.type="ParametricBufferGeometry";this.parameters={func:a,slices:b,stacks:c};var d=[],e=[],f=[],g=[],h=
+new p,k=new p,l=new p,q=new p,n=new p,t,r,m=b+1;for(t=0;t<=c;t++){var v=t/c;for(r=0;r<=b;r++){var w=r/b,k=a(w,v,k);e.push(k.x,k.y,k.z);0<=w-1E-5?(l=a(w-1E-5,v,l),q.subVectors(k,l)):(l=a(w+1E-5,v,l),q.subVectors(l,k));0<=v-1E-5?(l=a(w,v-1E-5,l),n.subVectors(k,l)):(l=a(w,v+1E-5,l),n.subVectors(l,k));h.crossVectors(q,n).normalize();f.push(h.x,h.y,h.z);g.push(w,v)}}for(t=0;t<c;t++)for(r=0;r<b;r++)a=t*m+r+1,h=(t+1)*m+r+1,k=(t+1)*m+r,d.push(t*m+r,a,k),d.push(a,h,k);this.setIndex(d);this.addAttribute("position",
+new y(e,3));this.addAttribute("normal",new y(f,3));this.addAttribute("uv",new y(g,2))}function Ic(a,b,c,d){N.call(this);this.type="PolyhedronGeometry";this.parameters={vertices:a,indices:b,radius:c,detail:d};this.fromBufferGeometry(new qa(a,b,c,d));this.mergeVertices()}function qa(a,b,c,d){function e(a){h.push(a.x,a.y,a.z)}function f(b,c){b*=3;c.x=a[b+0];c.y=a[b+1];c.z=a[b+2]}function g(a,b,c,d){0>d&&1===a.x&&(k[b]=a.x-1);0===c.x&&0===c.z&&(k[b]=d/2/Math.PI+.5)}D.call(this);this.type="PolyhedronBufferGeometry";
+this.parameters={vertices:a,indices:b,radius:c,detail:d};c=c||1;d=d||0;var h=[],k=[];(function(a){for(var c=new p,d=new p,g=new p,h=0;h<b.length;h+=3){f(b[h+0],c);f(b[h+1],d);f(b[h+2],g);var k,l,m=c,x=d,z=g,I=Math.pow(2,a),B=[];for(l=0;l<=I;l++){B[l]=[];var J=m.clone().lerp(z,l/I),y=x.clone().lerp(z,l/I),C=I-l;for(k=0;k<=C;k++)B[l][k]=0===k&&l===I?J:J.clone().lerp(y,k/C)}for(l=0;l<I;l++)for(k=0;k<2*(I-l)-1;k++)m=Math.floor(k/2),0===k%2?(e(B[l][m+1]),e(B[l+1][m]),e(B[l][m])):(e(B[l][m+1]),e(B[l+1][m+
+1]),e(B[l+1][m]))}})(d);(function(a){for(var b=new p,c=0;c<h.length;c+=3)b.x=h[c+0],b.y=h[c+1],b.z=h[c+2],b.normalize().multiplyScalar(a),h[c+0]=b.x,h[c+1]=b.y,h[c+2]=b.z})(c);(function(){for(var a=new p,b=0;b<h.length;b+=3)a.x=h[b+0],a.y=h[b+1],a.z=h[b+2],k.push(Math.atan2(a.z,-a.x)/2/Math.PI+.5,1-(Math.atan2(-a.y,Math.sqrt(a.x*a.x+a.z*a.z))/Math.PI+.5));for(var a=new p,b=new p,c=new p,d=new p,e=new C,f=new C,m=new C,w=0,x=0;w<h.length;w+=9,x+=6){a.set(h[w+0],h[w+1],h[w+2]);b.set(h[w+3],h[w+4],h[w+
+5]);c.set(h[w+6],h[w+7],h[w+8]);e.set(k[x+0],k[x+1]);f.set(k[x+2],k[x+3]);m.set(k[x+4],k[x+5]);d.copy(a).add(b).add(c).divideScalar(3);var z=Math.atan2(d.z,-d.x);g(e,x+0,a,z);g(f,x+2,b,z);g(m,x+4,c,z)}for(a=0;a<k.length;a+=6)b=k[a+0],c=k[a+2],d=k[a+4],e=Math.min(b,c,d),.9<Math.max(b,c,d)&&.1>e&&(.2>b&&(k[a+0]+=1),.2>c&&(k[a+2]+=1),.2>d&&(k[a+4]+=1))})();this.addAttribute("position",new y(h,3));this.addAttribute("normal",new y(h.slice(),3));this.addAttribute("uv",new y(k,2));0===d?this.computeVertexNormals():
+this.normalizeNormals()}function Jc(a,b){N.call(this);this.type="TetrahedronGeometry";this.parameters={radius:a,detail:b};this.fromBufferGeometry(new Ub(a,b));this.mergeVertices()}function Ub(a,b){qa.call(this,[1,1,1,-1,-1,1,-1,1,-1,1,-1,-1],[2,1,0,0,3,2,1,3,0,2,3,1],a,b);this.type="TetrahedronBufferGeometry";this.parameters={radius:a,detail:b}}function Kc(a,b){N.call(this);this.type="OctahedronGeometry";this.parameters={radius:a,detail:b};this.fromBufferGeometry(new nb(a,b));this.mergeVertices()}
+function nb(a,b){qa.call(this,[1,0,0,-1,0,0,0,1,0,0,-1,0,0,0,1,0,0,-1],[0,2,4,0,4,3,0,3,5,0,5,2,1,2,5,1,5,3,1,3,4,1,4,2],a,b);this.type="OctahedronBufferGeometry";this.parameters={radius:a,detail:b}}function Lc(a,b){N.call(this);this.type="IcosahedronGeometry";this.parameters={radius:a,detail:b};this.fromBufferGeometry(new Vb(a,b));this.mergeVertices()}function Vb(a,b){var c=(1+Math.sqrt(5))/2;qa.call(this,[-1,c,0,1,c,0,-1,-c,0,1,-c,0,0,-1,c,0,1,c,0,-1,-c,0,1,-c,c,0,-1,c,0,1,-c,0,-1,-c,0,1],[0,11,
+5,0,5,1,0,1,7,0,7,10,0,10,11,1,5,9,5,11,4,11,10,2,10,7,6,7,1,8,3,9,4,3,4,2,3,2,6,3,6,8,3,8,9,4,9,5,2,4,11,6,2,10,8,6,7,9,8,1],a,b);this.type="IcosahedronBufferGeometry";this.parameters={radius:a,detail:b}}function Mc(a,b){N.call(this);this.type="DodecahedronGeometry";this.parameters={radius:a,detail:b};this.fromBufferGeometry(new Wb(a,b));this.mergeVertices()}function Wb(a,b){var c=(1+Math.sqrt(5))/2,d=1/c;qa.call(this,[-1,-1,-1,-1,-1,1,-1,1,-1,-1,1,1,1,-1,-1,1,-1,1,1,1,-1,1,1,1,0,-d,-c,0,-d,c,0,
+d,-c,0,d,c,-d,-c,0,-d,c,0,d,-c,0,d,c,0,-c,0,-d,c,0,-d,-c,0,d,c,0,d],[3,11,7,3,7,15,3,15,13,7,19,17,7,17,6,7,6,15,17,4,8,17,8,10,17,10,6,8,0,16,8,16,2,8,2,10,0,12,1,0,1,18,0,18,16,6,10,2,6,2,13,6,13,15,2,16,18,2,18,3,2,3,13,18,1,9,18,9,11,18,11,3,4,14,12,4,12,0,4,0,8,11,9,5,11,5,19,11,19,7,19,5,14,19,14,4,19,4,17,1,12,14,1,14,5,1,5,9],a,b);this.type="DodecahedronBufferGeometry";this.parameters={radius:a,detail:b}}function Nc(a,b,c,d,e,f){N.call(this);this.type="TubeGeometry";this.parameters={path:a,
+tubularSegments:b,radius:c,radialSegments:d,closed:e};void 0!==f&&console.warn("THREE.TubeGeometry: taper has been removed.");a=new Xb(a,b,c,d,e);this.tangents=a.tangents;this.normals=a.normals;this.binormals=a.binormals;this.fromBufferGeometry(a);this.mergeVertices()}function Xb(a,b,c,d,e){function f(e){q=a.getPointAt(e/b,q);var f=g.normals[e];e=g.binormals[e];for(t=0;t<=d;t++){var l=t/d*Math.PI*2,n=Math.sin(l),l=-Math.cos(l);k.x=l*f.x+n*e.x;k.y=l*f.y+n*e.y;k.z=l*f.z+n*e.z;k.normalize();u.push(k.x,
+k.y,k.z);h.x=q.x+c*k.x;h.y=q.y+c*k.y;h.z=q.z+c*k.z;m.push(h.x,h.y,h.z)}}D.call(this);this.type="TubeBufferGeometry";this.parameters={path:a,tubularSegments:b,radius:c,radialSegments:d,closed:e};b=b||64;c=c||1;d=d||8;e=e||!1;var g=a.computeFrenetFrames(b,e);this.tangents=g.tangents;this.normals=g.normals;this.binormals=g.binormals;var h=new p,k=new p,l=new C,q=new p,n,t,m=[],u=[],v=[],w=[];for(n=0;n<b;n++)f(n);f(!1===e?b:0);for(n=0;n<=b;n++)for(t=0;t<=d;t++)l.x=n/b,l.y=t/d,v.push(l.x,l.y);(function(){for(t=
+1;t<=b;t++)for(n=1;n<=d;n++){var a=(d+1)*t+(n-1),c=(d+1)*t+n,e=(d+1)*(t-1)+n;w.push((d+1)*(t-1)+(n-1),a,e);w.push(a,c,e)}})();this.setIndex(w);this.addAttribute("position",new y(m,3));this.addAttribute("normal",new y(u,3));this.addAttribute("uv",new y(v,2))}function Oc(a,b,c,d,e,f,g){N.call(this);this.type="TorusKnotGeometry";this.parameters={radius:a,tube:b,tubularSegments:c,radialSegments:d,p:e,q:f};void 0!==g&&console.warn("THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.");
+this.fromBufferGeometry(new Yb(a,b,c,d,e,f));this.mergeVertices()}function Yb(a,b,c,d,e,f){function g(a,b,c,d,e){var f=Math.sin(a);b=c/b*a;c=Math.cos(b);e.x=d*(2+c)*.5*Math.cos(a);e.y=d*(2+c)*f*.5;e.z=d*Math.sin(b)*.5}D.call(this);this.type="TorusKnotBufferGeometry";this.parameters={radius:a,tube:b,tubularSegments:c,radialSegments:d,p:e,q:f};a=a||1;b=b||.4;c=Math.floor(c)||64;d=Math.floor(d)||8;e=e||2;f=f||3;var h=[],k=[],l=[],q=[],n,t=new p,m=new p,u=new p,v=new p,w=new p,x=new p,z=new p;for(n=0;n<=
+c;++n){var I=n/c*e*Math.PI*2;g(I,e,f,a,u);g(I+.01,e,f,a,v);x.subVectors(v,u);z.addVectors(v,u);w.crossVectors(x,z);z.crossVectors(w,x);w.normalize();z.normalize();for(I=0;I<=d;++I){var B=I/d*Math.PI*2,J=-b*Math.cos(B),B=b*Math.sin(B);t.x=u.x+(J*z.x+B*w.x);t.y=u.y+(J*z.y+B*w.y);t.z=u.z+(J*z.z+B*w.z);k.push(t.x,t.y,t.z);m.subVectors(t,u).normalize();l.push(m.x,m.y,m.z);q.push(n/c);q.push(I/d)}}for(I=1;I<=c;I++)for(n=1;n<=d;n++)a=(d+1)*I+(n-1),b=(d+1)*I+n,e=(d+1)*(I-1)+n,h.push((d+1)*(I-1)+(n-1),a,e),
+h.push(a,b,e);this.setIndex(h);this.addAttribute("position",new y(k,3));this.addAttribute("normal",new y(l,3));this.addAttribute("uv",new y(q,2))}function Pc(a,b,c,d,e){N.call(this);this.type="TorusGeometry";this.parameters={radius:a,tube:b,radialSegments:c,tubularSegments:d,arc:e};this.fromBufferGeometry(new Zb(a,b,c,d,e));this.mergeVertices()}function Zb(a,b,c,d,e){D.call(this);this.type="TorusBufferGeometry";this.parameters={radius:a,tube:b,radialSegments:c,tubularSegments:d,arc:e};a=a||1;b=b||
+.4;c=Math.floor(c)||8;d=Math.floor(d)||6;e=e||2*Math.PI;var f=[],g=[],h=[],k=[],l=new p,q=new p,n=new p,t,m;for(t=0;t<=c;t++)for(m=0;m<=d;m++){var u=m/d*e,v=t/c*Math.PI*2;q.x=(a+b*Math.cos(v))*Math.cos(u);q.y=(a+b*Math.cos(v))*Math.sin(u);q.z=b*Math.sin(v);g.push(q.x,q.y,q.z);l.x=a*Math.cos(u);l.y=a*Math.sin(u);n.subVectors(q,l).normalize();h.push(n.x,n.y,n.z);k.push(m/d);k.push(t/c)}for(t=1;t<=c;t++)for(m=1;m<=d;m++)a=(d+1)*(t-1)+m-1,b=(d+1)*(t-1)+m,e=(d+1)*t+m,f.push((d+1)*t+m-1,a,e),f.push(a,b,
+e);this.setIndex(f);this.addAttribute("position",new y(g,3));this.addAttribute("normal",new y(h,3));this.addAttribute("uv",new y(k,2))}function $a(a,b){N.call(this);this.type="ExtrudeGeometry";this.parameters={shapes:a,options:b};this.fromBufferGeometry(new Ga(a,b));this.mergeVertices()}function Ga(a,b){"undefined"!==typeof a&&(D.call(this),this.type="ExtrudeBufferGeometry",a=Array.isArray(a)?a:[a],this.addShapeList(a,b),this.computeVertexNormals())}function Qc(a,b){N.call(this);this.type="TextGeometry";
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+function Rc(a,b,c,d,e,f,g){N.call(this);this.type="SphereGeometry";this.parameters={radius:a,widthSegments:b,heightSegments:c,phiStart:d,phiLength:e,thetaStart:f,thetaLength:g};this.fromBufferGeometry(new ob(a,b,c,d,e,f,g));this.mergeVertices()}function ob(a,b,c,d,e,f,g){D.call(this);this.type="SphereBufferGeometry";this.parameters={radius:a,widthSegments:b,heightSegments:c,phiStart:d,phiLength:e,thetaStart:f,thetaLength:g};a=a||1;b=Math.max(3,Math.floor(b)||8);c=Math.max(2,Math.floor(c)||6);d=void 0!==
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+b,c){if(a<=b)return 0;if(a>=c)return 1;a=(a-b)/(c-b);return a*a*a*(a*(6*a-15)+10)},randInt:function(a,b){return a+Math.floor(Math.random()*(b-a+1))},randFloat:function(a,b){return a+Math.random()*(b-a)},randFloatSpread:function(a){return a*(.5-Math.random())},degToRad:function(a){return a*R.DEG2RAD},radToDeg:function(a){return a*R.RAD2DEG},isPowerOfTwo:function(a){return 0===(a&a-1)&&0!==a},ceilPowerOfTwo:function(a){return Math.pow(2,Math.ceil(Math.log(a)/Math.LN2))},floorPowerOfTwo:function(a){return Math.pow(2,
+Math.floor(Math.log(a)/Math.LN2))}};Object.defineProperties(C.prototype,{width:{get:function(){return this.x},set:function(a){this.x=a}},height:{get:function(){return this.y},set:function(a){this.y=a}}});Object.assign(C.prototype,{isVector2:!0,set:function(a,b){this.x=a;this.y=b;return this},setScalar:function(a){this.y=this.x=a;return this},setX:function(a){this.x=a;return this},setY:function(a){this.y=a;return this},setComponent:function(a,b){switch(a){case 0:this.x=b;break;case 1:this.y=b;break;
+default:throw Error("index is out of range: "+a);}return this},getComponent:function(a){switch(a){case 0:return this.x;case 1:return this.y;default:throw Error("index is out of range: "+a);}},clone:function(){return new this.constructor(this.x,this.y)},copy:function(a){this.x=a.x;this.y=a.y;return this},add:function(a,b){if(void 0!==b)return console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(a,b);this.x+=a.x;this.y+=a.y;return this},
+addScalar:function(a){this.x+=a;this.y+=a;return this},addVectors:function(a,b){this.x=a.x+b.x;this.y=a.y+b.y;return this},addScaledVector:function(a,b){this.x+=a.x*b;this.y+=a.y*b;return this},sub:function(a,b){if(void 0!==b)return console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(a,b);this.x-=a.x;this.y-=a.y;return this},subScalar:function(a){this.x-=a;this.y-=a;return this},subVectors:function(a,b){this.x=a.x-b.x;this.y=a.y-b.y;
+return this},multiply:function(a){this.x*=a.x;this.y*=a.y;return this},multiplyScalar:function(a){this.x*=a;this.y*=a;return this},divide:function(a){this.x/=a.x;this.y/=a.y;return this},divideScalar:function(a){return this.multiplyScalar(1/a)},applyMatrix3:function(a){var b=this.x,c=this.y;a=a.elements;this.x=a[0]*b+a[3]*c+a[6];this.y=a[1]*b+a[4]*c+a[7];return this},min:function(a){this.x=Math.min(this.x,a.x);this.y=Math.min(this.y,a.y);return this},max:function(a){this.x=Math.max(this.x,a.x);this.y=
+Math.max(this.y,a.y);return this},clamp:function(a,b){this.x=Math.max(a.x,Math.min(b.x,this.x));this.y=Math.max(a.y,Math.min(b.y,this.y));return this},clampScalar:function(){var a=new C,b=new C;return function(c,d){a.set(c,c);b.set(d,d);return this.clamp(a,b)}}(),clampLength:function(a,b){var c=this.length();return this.divideScalar(c||1).multiplyScalar(Math.max(a,Math.min(b,c)))},floor:function(){this.x=Math.floor(this.x);this.y=Math.floor(this.y);return this},ceil:function(){this.x=Math.ceil(this.x);
+this.y=Math.ceil(this.y);return this},round:function(){this.x=Math.round(this.x);this.y=Math.round(this.y);return this},roundToZero:function(){this.x=0>this.x?Math.ceil(this.x):Math.floor(this.x);this.y=0>this.y?Math.ceil(this.y):Math.floor(this.y);return this},negate:function(){this.x=-this.x;this.y=-this.y;return this},dot:function(a){return this.x*a.x+this.y*a.y},lengthSq:function(){return this.x*this.x+this.y*this.y},length:function(){return Math.sqrt(this.x*this.x+this.y*this.y)},manhattanLength:function(){return Math.abs(this.x)+
+Math.abs(this.y)},normalize:function(){return this.divideScalar(this.length()||1)},angle:function(){var a=Math.atan2(this.y,this.x);0>a&&(a+=2*Math.PI);return a},distanceTo:function(a){return Math.sqrt(this.distanceToSquared(a))},distanceToSquared:function(a){var b=this.x-a.x;a=this.y-a.y;return b*b+a*a},manhattanDistanceTo:function(a){return Math.abs(this.x-a.x)+Math.abs(this.y-a.y)},setLength:function(a){return this.normalize().multiplyScalar(a)},lerp:function(a,b){this.x+=(a.x-this.x)*b;this.y+=
+(a.y-this.y)*b;return this},lerpVectors:function(a,b,c){return this.subVectors(b,a).multiplyScalar(c).add(a)},equals:function(a){return a.x===this.x&&a.y===this.y},fromArray:function(a,b){void 0===b&&(b=0);this.x=a[b];this.y=a[b+1];return this},toArray:function(a,b){void 0===a&&(a=[]);void 0===b&&(b=0);a[b]=this.x;a[b+1]=this.y;return a},fromBufferAttribute:function(a,b,c){void 0!==c&&console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute().");this.x=a.getX(b);this.y=a.getY(b);
+return this},rotateAround:function(a,b){var c=Math.cos(b);b=Math.sin(b);var d=this.x-a.x,e=this.y-a.y;this.x=d*c-e*b+a.x;this.y=d*b+e*c+a.y;return this}});Object.assign(K.prototype,{isMatrix4:!0,set:function(a,b,c,d,e,f,g,h,k,l,q,n,t,m,p,v){var r=this.elements;r[0]=a;r[4]=b;r[8]=c;r[12]=d;r[1]=e;r[5]=f;r[9]=g;r[13]=h;r[2]=k;r[6]=l;r[10]=q;r[14]=n;r[3]=t;r[7]=m;r[11]=p;r[15]=v;return this},identity:function(){this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1);return this},clone:function(){return(new K).fromArray(this.elements)},
+copy:function(a){var b=this.elements;a=a.elements;b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];b[4]=a[4];b[5]=a[5];b[6]=a[6];b[7]=a[7];b[8]=a[8];b[9]=a[9];b[10]=a[10];b[11]=a[11];b[12]=a[12];b[13]=a[13];b[14]=a[14];b[15]=a[15];return this},copyPosition:function(a){var b=this.elements;a=a.elements;b[12]=a[12];b[13]=a[13];b[14]=a[14];return this},extractBasis:function(a,b,c){a.setFromMatrixColumn(this,0);b.setFromMatrixColumn(this,1);c.setFromMatrixColumn(this,2);return this},makeBasis:function(a,b,c){this.set(a.x,
+b.x,c.x,0,a.y,b.y,c.y,0,a.z,b.z,c.z,0,0,0,0,1);return this},extractRotation:function(){var a=new p;return function(b){var c=this.elements,d=b.elements,e=1/a.setFromMatrixColumn(b,0).length(),f=1/a.setFromMatrixColumn(b,1).length();b=1/a.setFromMatrixColumn(b,2).length();c[0]=d[0]*e;c[1]=d[1]*e;c[2]=d[2]*e;c[4]=d[4]*f;c[5]=d[5]*f;c[6]=d[6]*f;c[8]=d[8]*b;c[9]=d[9]*b;c[10]=d[10]*b;return this}}(),makeRotationFromEuler:function(a){a&&a.isEuler||console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.");
+var b=this.elements,c=a.x,d=a.y,e=a.z,f=Math.cos(c),c=Math.sin(c),g=Math.cos(d),d=Math.sin(d),h=Math.cos(e),e=Math.sin(e);if("XYZ"===a.order){var k=f*h;var l=f*e;var q=c*h;a=c*e;b[0]=g*h;b[4]=-g*e;b[8]=d;b[1]=l+q*d;b[5]=k-a*d;b[9]=-c*g;b[2]=a-k*d;b[6]=q+l*d;b[10]=f*g}else"YXZ"===a.order?(k=g*h,l=g*e,q=d*h,a=d*e,b[0]=k+a*c,b[4]=q*c-l,b[8]=f*d,b[1]=f*e,b[5]=f*h,b[9]=-c,b[2]=l*c-q,b[6]=a+k*c,b[10]=f*g):"ZXY"===a.order?(k=g*h,l=g*e,q=d*h,a=d*e,b[0]=k-a*c,b[4]=-f*e,b[8]=q+l*c,b[1]=l+q*c,b[5]=f*h,b[9]=
+a-k*c,b[2]=-f*d,b[6]=c,b[10]=f*g):"ZYX"===a.order?(k=f*h,l=f*e,q=c*h,a=c*e,b[0]=g*h,b[4]=q*d-l,b[8]=k*d+a,b[1]=g*e,b[5]=a*d+k,b[9]=l*d-q,b[2]=-d,b[6]=c*g,b[10]=f*g):"YZX"===a.order?(k=f*g,l=f*d,q=c*g,a=c*d,b[0]=g*h,b[4]=a-k*e,b[8]=q*e+l,b[1]=e,b[5]=f*h,b[9]=-c*h,b[2]=-d*h,b[6]=l*e+q,b[10]=k-a*e):"XZY"===a.order&&(k=f*g,l=f*d,q=c*g,a=c*d,b[0]=g*h,b[4]=-e,b[8]=d*h,b[1]=k*e+a,b[5]=f*h,b[9]=l*e-q,b[2]=q*e-l,b[6]=c*h,b[10]=a*e+k);b[3]=0;b[7]=0;b[11]=0;b[12]=0;b[13]=0;b[14]=0;b[15]=1;return this},makeRotationFromQuaternion:function(a){var b=
+this.elements,c=a._x,d=a._y,e=a._z,f=a._w,g=c+c,h=d+d,k=e+e;a=c*g;var l=c*h,c=c*k,q=d*h,d=d*k,e=e*k,g=f*g,h=f*h,f=f*k;b[0]=1-(q+e);b[4]=l-f;b[8]=c+h;b[1]=l+f;b[5]=1-(a+e);b[9]=d-g;b[2]=c-h;b[6]=d+g;b[10]=1-(a+q);b[3]=0;b[7]=0;b[11]=0;b[12]=0;b[13]=0;b[14]=0;b[15]=1;return this},lookAt:function(){var a=new p,b=new p,c=new p;return function(d,e,f){var g=this.elements;c.subVectors(d,e);0===c.lengthSq()&&(c.z=1);c.normalize();a.crossVectors(f,c);0===a.lengthSq()&&(1===Math.abs(f.z)?c.x+=1E-4:c.z+=1E-4,
+c.normalize(),a.crossVectors(f,c));a.normalize();b.crossVectors(c,a);g[0]=a.x;g[4]=b.x;g[8]=c.x;g[1]=a.y;g[5]=b.y;g[9]=c.y;g[2]=a.z;g[6]=b.z;g[10]=c.z;return this}}(),multiply:function(a,b){return void 0!==b?(console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead."),this.multiplyMatrices(a,b)):this.multiplyMatrices(this,a)},premultiply:function(a){return this.multiplyMatrices(a,this)},multiplyMatrices:function(a,b){var c=a.elements,d=b.elements;
+b=this.elements;a=c[0];var e=c[4],f=c[8],g=c[12],h=c[1],k=c[5],l=c[9],q=c[13],n=c[2],m=c[6],r=c[10],p=c[14],v=c[3],w=c[7],x=c[11],c=c[15],z=d[0],I=d[4],B=d[8],J=d[12],y=d[1],C=d[5],A=d[9],D=d[13],E=d[2],H=d[6],L=d[10],Y=d[14],N=d[3],M=d[7],V=d[11],d=d[15];b[0]=a*z+e*y+f*E+g*N;b[4]=a*I+e*C+f*H+g*M;b[8]=a*B+e*A+f*L+g*V;b[12]=a*J+e*D+f*Y+g*d;b[1]=h*z+k*y+l*E+q*N;b[5]=h*I+k*C+l*H+q*M;b[9]=h*B+k*A+l*L+q*V;b[13]=h*J+k*D+l*Y+q*d;b[2]=n*z+m*y+r*E+p*N;b[6]=n*I+m*C+r*H+p*M;b[10]=n*B+m*A+r*L+p*V;b[14]=n*J+m*
+D+r*Y+p*d;b[3]=v*z+w*y+x*E+c*N;b[7]=v*I+w*C+x*H+c*M;b[11]=v*B+w*A+x*L+c*V;b[15]=v*J+w*D+x*Y+c*d;return this},multiplyScalar:function(a){var b=this.elements;b[0]*=a;b[4]*=a;b[8]*=a;b[12]*=a;b[1]*=a;b[5]*=a;b[9]*=a;b[13]*=a;b[2]*=a;b[6]*=a;b[10]*=a;b[14]*=a;b[3]*=a;b[7]*=a;b[11]*=a;b[15]*=a;return this},applyToBufferAttribute:function(){var a=new p;return function(b){for(var c=0,d=b.count;c<d;c++)a.x=b.getX(c),a.y=b.getY(c),a.z=b.getZ(c),a.applyMatrix4(this),b.setXYZ(c,a.x,a.y,a.z);return b}}(),determinant:function(){var a=
+this.elements,b=a[0],c=a[4],d=a[8],e=a[12],f=a[1],g=a[5],h=a[9],k=a[13],l=a[2],q=a[6],n=a[10],m=a[14];return a[3]*(+e*h*q-d*k*q-e*g*n+c*k*n+d*g*m-c*h*m)+a[7]*(+b*h*m-b*k*n+e*f*n-d*f*m+d*k*l-e*h*l)+a[11]*(+b*k*q-b*g*m-e*f*q+c*f*m+e*g*l-c*k*l)+a[15]*(-d*g*l-b*h*q+b*g*n+d*f*q-c*f*n+c*h*l)},transpose:function(){var a=this.elements;var b=a[1];a[1]=a[4];a[4]=b;b=a[2];a[2]=a[8];a[8]=b;b=a[6];a[6]=a[9];a[9]=b;b=a[3];a[3]=a[12];a[12]=b;b=a[7];a[7]=a[13];a[13]=b;b=a[11];a[11]=a[14];a[14]=b;return this},setPosition:function(a){var b=
+this.elements;b[12]=a.x;b[13]=a.y;b[14]=a.z;return this},getInverse:function(a,b){var c=this.elements,d=a.elements;a=d[0];var e=d[1],f=d[2],g=d[3],h=d[4],k=d[5],l=d[6],q=d[7],n=d[8],m=d[9],r=d[10],p=d[11],v=d[12],w=d[13],x=d[14],d=d[15],z=m*x*q-w*r*q+w*l*p-k*x*p-m*l*d+k*r*d,I=v*r*q-n*x*q-v*l*p+h*x*p+n*l*d-h*r*d,B=n*w*q-v*m*q+v*k*p-h*w*p-n*k*d+h*m*d,J=v*m*l-n*w*l-v*k*r+h*w*r+n*k*x-h*m*x,y=a*z+e*I+f*B+g*J;if(0===y){if(!0===b)throw Error("THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0");
+console.warn("THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0");return this.identity()}b=1/y;c[0]=z*b;c[1]=(w*r*g-m*x*g-w*f*p+e*x*p+m*f*d-e*r*d)*b;c[2]=(k*x*g-w*l*g+w*f*q-e*x*q-k*f*d+e*l*d)*b;c[3]=(m*l*g-k*r*g-m*f*q+e*r*q+k*f*p-e*l*p)*b;c[4]=I*b;c[5]=(n*x*g-v*r*g+v*f*p-a*x*p-n*f*d+a*r*d)*b;c[6]=(v*l*g-h*x*g-v*f*q+a*x*q+h*f*d-a*l*d)*b;c[7]=(h*r*g-n*l*g+n*f*q-a*r*q-h*f*p+a*l*p)*b;c[8]=B*b;c[9]=(v*m*g-n*w*g-v*e*p+a*w*p+n*e*d-a*m*d)*b;c[10]=(h*w*g-v*k*g+v*e*q-a*w*q-h*e*d+a*k*d)*b;c[11]=
+(n*k*g-h*m*g-n*e*q+a*m*q+h*e*p-a*k*p)*b;c[12]=J*b;c[13]=(n*w*f-v*m*f+v*e*r-a*w*r-n*e*x+a*m*x)*b;c[14]=(v*k*f-h*w*f-v*e*l+a*w*l+h*e*x-a*k*x)*b;c[15]=(h*m*f-n*k*f+n*e*l-a*m*l-h*e*r+a*k*r)*b;return this},scale:function(a){var b=this.elements,c=a.x,d=a.y;a=a.z;b[0]*=c;b[4]*=d;b[8]*=a;b[1]*=c;b[5]*=d;b[9]*=a;b[2]*=c;b[6]*=d;b[10]*=a;b[3]*=c;b[7]*=d;b[11]*=a;return this},getMaxScaleOnAxis:function(){var a=this.elements;return Math.sqrt(Math.max(a[0]*a[0]+a[1]*a[1]+a[2]*a[2],a[4]*a[4]+a[5]*a[5]+a[6]*a[6],
+a[8]*a[8]+a[9]*a[9]+a[10]*a[10]))},makeTranslation:function(a,b,c){this.set(1,0,0,a,0,1,0,b,0,0,1,c,0,0,0,1);return this},makeRotationX:function(a){var b=Math.cos(a);a=Math.sin(a);this.set(1,0,0,0,0,b,-a,0,0,a,b,0,0,0,0,1);return this},makeRotationY:function(a){var b=Math.cos(a);a=Math.sin(a);this.set(b,0,a,0,0,1,0,0,-a,0,b,0,0,0,0,1);return this},makeRotationZ:function(a){var b=Math.cos(a);a=Math.sin(a);this.set(b,-a,0,0,a,b,0,0,0,0,1,0,0,0,0,1);return this},makeRotationAxis:function(a,b){var c=
+Math.cos(b);b=Math.sin(b);var d=1-c,e=a.x,f=a.y;a=a.z;var g=d*e,h=d*f;this.set(g*e+c,g*f-b*a,g*a+b*f,0,g*f+b*a,h*f+c,h*a-b*e,0,g*a-b*f,h*a+b*e,d*a*a+c,0,0,0,0,1);return this},makeScale:function(a,b,c){this.set(a,0,0,0,0,b,0,0,0,0,c,0,0,0,0,1);return this},makeShear:function(a,b,c){this.set(1,b,c,0,a,1,c,0,a,b,1,0,0,0,0,1);return this},compose:function(a,b,c){this.makeRotationFromQuaternion(b);this.scale(c);this.setPosition(a);return this},decompose:function(){var a=new p,b=new K;return function(c,
+d,e){var f=this.elements,g=a.set(f[0],f[1],f[2]).length(),h=a.set(f[4],f[5],f[6]).length(),k=a.set(f[8],f[9],f[10]).length();0>this.determinant()&&(g=-g);c.x=f[12];c.y=f[13];c.z=f[14];b.copy(this);c=1/g;var f=1/h,l=1/k;b.elements[0]*=c;b.elements[1]*=c;b.elements[2]*=c;b.elements[4]*=f;b.elements[5]*=f;b.elements[6]*=f;b.elements[8]*=l;b.elements[9]*=l;b.elements[10]*=l;d.setFromRotationMatrix(b);e.x=g;e.y=h;e.z=k;return this}}(),makePerspective:function(a,b,c,d,e,f){void 0===f&&console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.");
+var g=this.elements;g[0]=2*e/(b-a);g[4]=0;g[8]=(b+a)/(b-a);g[12]=0;g[1]=0;g[5]=2*e/(c-d);g[9]=(c+d)/(c-d);g[13]=0;g[2]=0;g[6]=0;g[10]=-(f+e)/(f-e);g[14]=-2*f*e/(f-e);g[3]=0;g[7]=0;g[11]=-1;g[15]=0;return this},makeOrthographic:function(a,b,c,d,e,f){var g=this.elements,h=1/(b-a),k=1/(c-d),l=1/(f-e);g[0]=2*h;g[4]=0;g[8]=0;g[12]=-((b+a)*h);g[1]=0;g[5]=2*k;g[9]=0;g[13]=-((c+d)*k);g[2]=0;g[6]=0;g[10]=-2*l;g[14]=-((f+e)*l);g[3]=0;g[7]=0;g[11]=0;g[15]=1;return this},equals:function(a){var b=this.elements;
+a=a.elements;for(var c=0;16>c;c++)if(b[c]!==a[c])return!1;return!0},fromArray:function(a,b){void 0===b&&(b=0);for(var c=0;16>c;c++)this.elements[c]=a[c+b];return this},toArray:function(a,b){void 0===a&&(a=[]);void 0===b&&(b=0);var c=this.elements;a[b]=c[0];a[b+1]=c[1];a[b+2]=c[2];a[b+3]=c[3];a[b+4]=c[4];a[b+5]=c[5];a[b+6]=c[6];a[b+7]=c[7];a[b+8]=c[8];a[b+9]=c[9];a[b+10]=c[10];a[b+11]=c[11];a[b+12]=c[12];a[b+13]=c[13];a[b+14]=c[14];a[b+15]=c[15];return a}});Object.assign(Z,{slerp:function(a,b,c,d){return c.copy(a).slerp(b,
+d)},slerpFlat:function(a,b,c,d,e,f,g){var h=c[d+0],k=c[d+1],l=c[d+2];c=c[d+3];d=e[f+0];var q=e[f+1],n=e[f+2];e=e[f+3];if(c!==e||h!==d||k!==q||l!==n){f=1-g;var m=h*d+k*q+l*n+c*e,r=0<=m?1:-1,p=1-m*m;p>Number.EPSILON&&(p=Math.sqrt(p),m=Math.atan2(p,m*r),f=Math.sin(f*m)/p,g=Math.sin(g*m)/p);r*=g;h=h*f+d*r;k=k*f+q*r;l=l*f+n*r;c=c*f+e*r;f===1-g&&(g=1/Math.sqrt(h*h+k*k+l*l+c*c),h*=g,k*=g,l*=g,c*=g)}a[b]=h;a[b+1]=k;a[b+2]=l;a[b+3]=c}});Object.defineProperties(Z.prototype,{x:{get:function(){return this._x},
+set:function(a){this._x=a;this.onChangeCallback()}},y:{get:function(){return this._y},set:function(a){this._y=a;this.onChangeCallback()}},z:{get:function(){return this._z},set:function(a){this._z=a;this.onChangeCallback()}},w:{get:function(){return this._w},set:function(a){this._w=a;this.onChangeCallback()}}});Object.assign(Z.prototype,{set:function(a,b,c,d){this._x=a;this._y=b;this._z=c;this._w=d;this.onChangeCallback();return this},clone:function(){return new this.constructor(this._x,this._y,this._z,
+this._w)},copy:function(a){this._x=a.x;this._y=a.y;this._z=a.z;this._w=a.w;this.onChangeCallback();return this},setFromEuler:function(a,b){if(!a||!a.isEuler)throw Error("THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.");var c=a._x,d=a._y,e=a._z;a=a.order;var f=Math.cos,g=Math.sin,h=f(c/2),k=f(d/2),f=f(e/2),c=g(c/2),d=g(d/2),e=g(e/2);"XYZ"===a?(this._x=c*k*f+h*d*e,this._y=h*d*f-c*k*e,this._z=h*k*e+c*d*f,this._w=h*k*f-c*d*e):"YXZ"===a?(this._x=c*k*f+
+h*d*e,this._y=h*d*f-c*k*e,this._z=h*k*e-c*d*f,this._w=h*k*f+c*d*e):"ZXY"===a?(this._x=c*k*f-h*d*e,this._y=h*d*f+c*k*e,this._z=h*k*e+c*d*f,this._w=h*k*f-c*d*e):"ZYX"===a?(this._x=c*k*f-h*d*e,this._y=h*d*f+c*k*e,this._z=h*k*e-c*d*f,this._w=h*k*f+c*d*e):"YZX"===a?(this._x=c*k*f+h*d*e,this._y=h*d*f+c*k*e,this._z=h*k*e-c*d*f,this._w=h*k*f-c*d*e):"XZY"===a&&(this._x=c*k*f-h*d*e,this._y=h*d*f-c*k*e,this._z=h*k*e+c*d*f,this._w=h*k*f+c*d*e);if(!1!==b)this.onChangeCallback();return this},setFromAxisAngle:function(a,
+b){b/=2;var c=Math.sin(b);this._x=a.x*c;this._y=a.y*c;this._z=a.z*c;this._w=Math.cos(b);this.onChangeCallback();return this},setFromRotationMatrix:function(a){var b=a.elements,c=b[0];a=b[4];var d=b[8],e=b[1],f=b[5],g=b[9],h=b[2],k=b[6],b=b[10],l=c+f+b;0<l?(c=.5/Math.sqrt(l+1),this._w=.25/c,this._x=(k-g)*c,this._y=(d-h)*c,this._z=(e-a)*c):c>f&&c>b?(c=2*Math.sqrt(1+c-f-b),this._w=(k-g)/c,this._x=.25*c,this._y=(a+e)/c,this._z=(d+h)/c):f>b?(c=2*Math.sqrt(1+f-c-b),this._w=(d-h)/c,this._x=(a+e)/c,this._y=
+.25*c,this._z=(g+k)/c):(c=2*Math.sqrt(1+b-c-f),this._w=(e-a)/c,this._x=(d+h)/c,this._y=(g+k)/c,this._z=.25*c);this.onChangeCallback();return this},setFromUnitVectors:function(){var a=new p,b;return function(c,d){void 0===a&&(a=new p);b=c.dot(d)+1;1E-6>b?(b=0,Math.abs(c.x)>Math.abs(c.z)?a.set(-c.y,c.x,0):a.set(0,-c.z,c.y)):a.crossVectors(c,d);this._x=a.x;this._y=a.y;this._z=a.z;this._w=b;return this.normalize()}}(),inverse:function(){return this.conjugate().normalize()},conjugate:function(){this._x*=
+-1;this._y*=-1;this._z*=-1;this.onChangeCallback();return this},dot:function(a){return this._x*a._x+this._y*a._y+this._z*a._z+this._w*a._w},lengthSq:function(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w},length:function(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w)},normalize:function(){var a=this.length();0===a?(this._z=this._y=this._x=0,this._w=1):(a=1/a,this._x*=a,this._y*=a,this._z*=a,this._w*=a);this.onChangeCallback();return this},
+multiply:function(a,b){return void 0!==b?(console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead."),this.multiplyQuaternions(a,b)):this.multiplyQuaternions(this,a)},premultiply:function(a){return this.multiplyQuaternions(a,this)},multiplyQuaternions:function(a,b){var c=a._x,d=a._y,e=a._z;a=a._w;var f=b._x,g=b._y,h=b._z;b=b._w;this._x=c*b+a*f+d*h-e*g;this._y=d*b+a*g+e*f-c*h;this._z=e*b+a*h+c*g-d*f;this._w=a*b-c*f-d*g-e*h;this.onChangeCallback();
+return this},slerp:function(a,b){if(0===b)return this;if(1===b)return this.copy(a);var c=this._x,d=this._y,e=this._z,f=this._w,g=f*a._w+c*a._x+d*a._y+e*a._z;0>g?(this._w=-a._w,this._x=-a._x,this._y=-a._y,this._z=-a._z,g=-g):this.copy(a);if(1<=g)return this._w=f,this._x=c,this._y=d,this._z=e,this;a=Math.sqrt(1-g*g);if(.001>Math.abs(a))return this._w=.5*(f+this._w),this._x=.5*(c+this._x),this._y=.5*(d+this._y),this._z=.5*(e+this._z),this;var h=Math.atan2(a,g),g=Math.sin((1-b)*h)/a;b=Math.sin(b*h)/a;
+this._w=f*g+this._w*b;this._x=c*g+this._x*b;this._y=d*g+this._y*b;this._z=e*g+this._z*b;this.onChangeCallback();return this},equals:function(a){return a._x===this._x&&a._y===this._y&&a._z===this._z&&a._w===this._w},fromArray:function(a,b){void 0===b&&(b=0);this._x=a[b];this._y=a[b+1];this._z=a[b+2];this._w=a[b+3];this.onChangeCallback();return this},toArray:function(a,b){void 0===a&&(a=[]);void 0===b&&(b=0);a[b]=this._x;a[b+1]=this._y;a[b+2]=this._z;a[b+3]=this._w;return a},onChange:function(a){this.onChangeCallback=
+a;return this},onChangeCallback:function(){}});Object.assign(p.prototype,{isVector3:!0,set:function(a,b,c){this.x=a;this.y=b;this.z=c;return this},setScalar:function(a){this.z=this.y=this.x=a;return this},setX:function(a){this.x=a;return this},setY:function(a){this.y=a;return this},setZ:function(a){this.z=a;return this},setComponent:function(a,b){switch(a){case 0:this.x=b;break;case 1:this.y=b;break;case 2:this.z=b;break;default:throw Error("index is out of range: "+a);}return this},getComponent:function(a){switch(a){case 0:return this.x;
+case 1:return this.y;case 2:return this.z;default:throw Error("index is out of range: "+a);}},clone:function(){return new this.constructor(this.x,this.y,this.z)},copy:function(a){this.x=a.x;this.y=a.y;this.z=a.z;return this},add:function(a,b){if(void 0!==b)return console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),this.addVectors(a,b);this.x+=a.x;this.y+=a.y;this.z+=a.z;return this},addScalar:function(a){this.x+=a;this.y+=a;this.z+=a;return this},
+addVectors:function(a,b){this.x=a.x+b.x;this.y=a.y+b.y;this.z=a.z+b.z;return this},addScaledVector:function(a,b){this.x+=a.x*b;this.y+=a.y*b;this.z+=a.z*b;return this},sub:function(a,b){if(void 0!==b)return console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(a,b);this.x-=a.x;this.y-=a.y;this.z-=a.z;return this},subScalar:function(a){this.x-=a;this.y-=a;this.z-=a;return this},subVectors:function(a,b){this.x=a.x-b.x;this.y=a.y-b.y;this.z=
+a.z-b.z;return this},multiply:function(a,b){if(void 0!==b)return console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead."),this.multiplyVectors(a,b);this.x*=a.x;this.y*=a.y;this.z*=a.z;return this},multiplyScalar:function(a){this.x*=a;this.y*=a;this.z*=a;return this},multiplyVectors:function(a,b){this.x=a.x*b.x;this.y=a.y*b.y;this.z=a.z*b.z;return this},applyEuler:function(){var a=new Z;return function(b){b&&b.isEuler||console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.");
+return this.applyQuaternion(a.setFromEuler(b))}}(),applyAxisAngle:function(){var a=new Z;return function(b,c){return this.applyQuaternion(a.setFromAxisAngle(b,c))}}(),applyMatrix3:function(a){var b=this.x,c=this.y,d=this.z;a=a.elements;this.x=a[0]*b+a[3]*c+a[6]*d;this.y=a[1]*b+a[4]*c+a[7]*d;this.z=a[2]*b+a[5]*c+a[8]*d;return this},applyMatrix4:function(a){var b=this.x,c=this.y,d=this.z;a=a.elements;var e=1/(a[3]*b+a[7]*c+a[11]*d+a[15]);this.x=(a[0]*b+a[4]*c+a[8]*d+a[12])*e;this.y=(a[1]*b+a[5]*c+a[9]*
+d+a[13])*e;this.z=(a[2]*b+a[6]*c+a[10]*d+a[14])*e;return this},applyQuaternion:function(a){var b=this.x,c=this.y,d=this.z,e=a.x,f=a.y,g=a.z;a=a.w;var h=a*b+f*d-g*c,k=a*c+g*b-e*d,l=a*d+e*c-f*b,b=-e*b-f*c-g*d;this.x=h*a+b*-e+k*-g-l*-f;this.y=k*a+b*-f+l*-e-h*-g;this.z=l*a+b*-g+h*-f-k*-e;return this},project:function(){var a=new K;return function(b){a.multiplyMatrices(b.projectionMatrix,a.getInverse(b.matrixWorld));return this.applyMatrix4(a)}}(),unproject:function(){var a=new K;return function(b){a.multiplyMatrices(b.matrixWorld,
+a.getInverse(b.projectionMatrix));return this.applyMatrix4(a)}}(),transformDirection:function(a){var b=this.x,c=this.y,d=this.z;a=a.elements;this.x=a[0]*b+a[4]*c+a[8]*d;this.y=a[1]*b+a[5]*c+a[9]*d;this.z=a[2]*b+a[6]*c+a[10]*d;return this.normalize()},divide:function(a){this.x/=a.x;this.y/=a.y;this.z/=a.z;return this},divideScalar:function(a){return this.multiplyScalar(1/a)},min:function(a){this.x=Math.min(this.x,a.x);this.y=Math.min(this.y,a.y);this.z=Math.min(this.z,a.z);return this},max:function(a){this.x=
+Math.max(this.x,a.x);this.y=Math.max(this.y,a.y);this.z=Math.max(this.z,a.z);return this},clamp:function(a,b){this.x=Math.max(a.x,Math.min(b.x,this.x));this.y=Math.max(a.y,Math.min(b.y,this.y));this.z=Math.max(a.z,Math.min(b.z,this.z));return this},clampScalar:function(){var a=new p,b=new p;return function(c,d){a.set(c,c,c);b.set(d,d,d);return this.clamp(a,b)}}(),clampLength:function(a,b){var c=this.length();return this.divideScalar(c||1).multiplyScalar(Math.max(a,Math.min(b,c)))},floor:function(){this.x=
+Math.floor(this.x);this.y=Math.floor(this.y);this.z=Math.floor(this.z);return this},ceil:function(){this.x=Math.ceil(this.x);this.y=Math.ceil(this.y);this.z=Math.ceil(this.z);return this},round:function(){this.x=Math.round(this.x);this.y=Math.round(this.y);this.z=Math.round(this.z);return this},roundToZero:function(){this.x=0>this.x?Math.ceil(this.x):Math.floor(this.x);this.y=0>this.y?Math.ceil(this.y):Math.floor(this.y);this.z=0>this.z?Math.ceil(this.z):Math.floor(this.z);return this},negate:function(){this.x=
+-this.x;this.y=-this.y;this.z=-this.z;return this},dot:function(a){return this.x*a.x+this.y*a.y+this.z*a.z},lengthSq:function(){return this.x*this.x+this.y*this.y+this.z*this.z},length:function(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)},manhattanLength:function(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)},normalize:function(){return this.divideScalar(this.length()||1)},setLength:function(a){return this.normalize().multiplyScalar(a)},lerp:function(a,b){this.x+=(a.x-
+this.x)*b;this.y+=(a.y-this.y)*b;this.z+=(a.z-this.z)*b;return this},lerpVectors:function(a,b,c){return this.subVectors(b,a).multiplyScalar(c).add(a)},cross:function(a,b){return void 0!==b?(console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead."),this.crossVectors(a,b)):this.crossVectors(this,a)},crossVectors:function(a,b){var c=a.x,d=a.y;a=a.z;var e=b.x,f=b.y;b=b.z;this.x=d*b-a*f;this.y=a*e-c*b;this.z=c*f-d*e;return this},projectOnVector:function(a){var b=
+a.dot(this)/a.lengthSq();return this.copy(a).multiplyScalar(b)},projectOnPlane:function(){var a=new p;return function(b){a.copy(this).projectOnVector(b);return this.sub(a)}}(),reflect:function(){var a=new p;return function(b){return this.sub(a.copy(b).multiplyScalar(2*this.dot(b)))}}(),angleTo:function(a){a=this.dot(a)/Math.sqrt(this.lengthSq()*a.lengthSq());return Math.acos(R.clamp(a,-1,1))},distanceTo:function(a){return Math.sqrt(this.distanceToSquared(a))},distanceToSquared:function(a){var b=this.x-
+a.x,c=this.y-a.y;a=this.z-a.z;return b*b+c*c+a*a},manhattanDistanceTo:function(a){return Math.abs(this.x-a.x)+Math.abs(this.y-a.y)+Math.abs(this.z-a.z)},setFromSpherical:function(a){var b=Math.sin(a.phi)*a.radius;this.x=b*Math.sin(a.theta);this.y=Math.cos(a.phi)*a.radius;this.z=b*Math.cos(a.theta);return this},setFromCylindrical:function(a){this.x=a.radius*Math.sin(a.theta);this.y=a.y;this.z=a.radius*Math.cos(a.theta);return this},setFromMatrixPosition:function(a){a=a.elements;this.x=a[12];this.y=
+a[13];this.z=a[14];return this},setFromMatrixScale:function(a){var b=this.setFromMatrixColumn(a,0).length(),c=this.setFromMatrixColumn(a,1).length();a=this.setFromMatrixColumn(a,2).length();this.x=b;this.y=c;this.z=a;return this},setFromMatrixColumn:function(a,b){return this.fromArray(a.elements,4*b)},equals:function(a){return a.x===this.x&&a.y===this.y&&a.z===this.z},fromArray:function(a,b){void 0===b&&(b=0);this.x=a[b];this.y=a[b+1];this.z=a[b+2];return this},toArray:function(a,b){void 0===a&&(a=
+[]);void 0===b&&(b=0);a[b]=this.x;a[b+1]=this.y;a[b+2]=this.z;return a},fromBufferAttribute:function(a,b,c){void 0!==c&&console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute().");this.x=a.getX(b);this.y=a.getY(b);this.z=a.getZ(b);return this}});Object.assign(ra.prototype,{isMatrix3:!0,set:function(a,b,c,d,e,f,g,h,k){var l=this.elements;l[0]=a;l[1]=d;l[2]=g;l[3]=b;l[4]=e;l[5]=h;l[6]=c;l[7]=f;l[8]=k;return this},identity:function(){this.set(1,0,0,0,1,0,0,0,1);return this},clone:function(){return(new this.constructor).fromArray(this.elements)},
+copy:function(a){var b=this.elements;a=a.elements;b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];b[4]=a[4];b[5]=a[5];b[6]=a[6];b[7]=a[7];b[8]=a[8];return this},setFromMatrix4:function(a){a=a.elements;this.set(a[0],a[4],a[8],a[1],a[5],a[9],a[2],a[6],a[10]);return this},applyToBufferAttribute:function(){var a=new p;return function(b){for(var c=0,d=b.count;c<d;c++)a.x=b.getX(c),a.y=b.getY(c),a.z=b.getZ(c),a.applyMatrix3(this),b.setXYZ(c,a.x,a.y,a.z);return b}}(),multiply:function(a){return this.multiplyMatrices(this,
+a)},premultiply:function(a){return this.multiplyMatrices(a,this)},multiplyMatrices:function(a,b){var c=a.elements,d=b.elements;b=this.elements;a=c[0];var e=c[3],f=c[6],g=c[1],h=c[4],k=c[7],l=c[2],q=c[5],c=c[8],n=d[0],m=d[3],r=d[6],p=d[1],v=d[4],w=d[7],x=d[2],z=d[5],d=d[8];b[0]=a*n+e*p+f*x;b[3]=a*m+e*v+f*z;b[6]=a*r+e*w+f*d;b[1]=g*n+h*p+k*x;b[4]=g*m+h*v+k*z;b[7]=g*r+h*w+k*d;b[2]=l*n+q*p+c*x;b[5]=l*m+q*v+c*z;b[8]=l*r+q*w+c*d;return this},multiplyScalar:function(a){var b=this.elements;b[0]*=a;b[3]*=a;
+b[6]*=a;b[1]*=a;b[4]*=a;b[7]*=a;b[2]*=a;b[5]*=a;b[8]*=a;return this},determinant:function(){var a=this.elements,b=a[0],c=a[1],d=a[2],e=a[3],f=a[4],g=a[5],h=a[6],k=a[7],a=a[8];return b*f*a-b*g*k-c*e*a+c*g*h+d*e*k-d*f*h},getInverse:function(a,b){a&&a.isMatrix4&&console.error("THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument.");var c=a.elements;a=this.elements;var d=c[0],e=c[1],f=c[2],g=c[3],h=c[4],k=c[5],l=c[6],q=c[7],c=c[8],n=c*h-k*q,m=k*l-c*g,r=q*g-h*l,p=d*n+e*m+f*r;if(0===p){if(!0===
+b)throw Error("THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0");console.warn("THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0");return this.identity()}b=1/p;a[0]=n*b;a[1]=(f*q-c*e)*b;a[2]=(k*e-f*h)*b;a[3]=m*b;a[4]=(c*d-f*l)*b;a[5]=(f*g-k*d)*b;a[6]=r*b;a[7]=(e*l-q*d)*b;a[8]=(h*d-e*g)*b;return this},transpose:function(){var a=this.elements;var b=a[1];a[1]=a[3];a[3]=b;b=a[2];a[2]=a[6];a[6]=b;b=a[5];a[5]=a[7];a[7]=b;return this},getNormalMatrix:function(a){return this.setFromMatrix4(a).getInverse(this).transpose()},
+transposeIntoArray:function(a){var b=this.elements;a[0]=b[0];a[1]=b[3];a[2]=b[6];a[3]=b[1];a[4]=b[4];a[5]=b[7];a[6]=b[2];a[7]=b[5];a[8]=b[8];return this},setUvTransform:function(a,b,c,d,e,f,g){var h=Math.cos(e);e=Math.sin(e);this.set(c*h,c*e,-c*(h*f+e*g)+f+a,-d*e,d*h,-d*(-e*f+h*g)+g+b,0,0,1)},scale:function(a,b){var c=this.elements;c[0]*=a;c[3]*=a;c[6]*=a;c[1]*=b;c[4]*=b;c[7]*=b;return this},rotate:function(a){var b=Math.cos(a);a=Math.sin(a);var c=this.elements,d=c[0],e=c[3],f=c[6],g=c[1],h=c[4],
+k=c[7];c[0]=b*d+a*g;c[3]=b*e+a*h;c[6]=b*f+a*k;c[1]=-a*d+b*g;c[4]=-a*e+b*h;c[7]=-a*f+b*k;return this},translate:function(a,b){var c=this.elements;c[0]+=a*c[2];c[3]+=a*c[5];c[6]+=a*c[8];c[1]+=b*c[2];c[4]+=b*c[5];c[7]+=b*c[8];return this},equals:function(a){var b=this.elements;a=a.elements;for(var c=0;9>c;c++)if(b[c]!==a[c])return!1;return!0},fromArray:function(a,b){void 0===b&&(b=0);for(var c=0;9>c;c++)this.elements[c]=a[c+b];return this},toArray:function(a,b){void 0===a&&(a=[]);void 0===b&&(b=0);var c=
+this.elements;a[b]=c[0];a[b+1]=c[1];a[b+2]=c[2];a[b+3]=c[3];a[b+4]=c[4];a[b+5]=c[5];a[b+6]=c[6];a[b+7]=c[7];a[b+8]=c[8];return a}});var kf=0;ea.DEFAULT_IMAGE=void 0;ea.DEFAULT_MAPPING=300;Object.defineProperty(ea.prototype,"needsUpdate",{set:function(a){!0===a&&this.version++}});Object.assign(ea.prototype,ja.prototype,{constructor:ea,isTexture:!0,clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.name=a.name;this.image=a.image;this.mipmaps=a.mipmaps.slice(0);this.mapping=
+a.mapping;this.wrapS=a.wrapS;this.wrapT=a.wrapT;this.magFilter=a.magFilter;this.minFilter=a.minFilter;this.anisotropy=a.anisotropy;this.format=a.format;this.type=a.type;this.offset.copy(a.offset);this.repeat.copy(a.repeat);this.center.copy(a.center);this.rotation=a.rotation;this.matrixAutoUpdate=a.matrixAutoUpdate;this.matrix.copy(a.matrix);this.generateMipmaps=a.generateMipmaps;this.premultiplyAlpha=a.premultiplyAlpha;this.flipY=a.flipY;this.unpackAlignment=a.unpackAlignment;this.encoding=a.encoding;
+return this},toJSON:function(a){var b=void 0===a||"string"===typeof a;if(!b&&void 0!==a.textures[this.uuid])return a.textures[this.uuid];var c={metadata:{version:4.5,type:"Texture",generator:"Texture.toJSON"},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY};
+if(void 0!==this.image){var d=this.image;void 0===d.uuid&&(d.uuid=R.generateUUID());if(!b&&void 0===a.images[d.uuid]){var e=a.images,f=d.uuid,g=d.uuid;if(d instanceof HTMLCanvasElement)var h=d;else{h=document.createElementNS("http://www.w3.org/1999/xhtml","canvas");h.width=d.width;h.height=d.height;var k=h.getContext("2d");d instanceof ImageData?k.putImageData(d,0,0):k.drawImage(d,0,0,d.width,d.height)}h=2048<h.width||2048<h.height?h.toDataURL("image/jpeg",.6):h.toDataURL("image/png");e[f]={uuid:g,
+url:h}}c.image=d.uuid}b||(a.textures[this.uuid]=c);return c},dispose:function(){this.dispatchEvent({type:"dispose"})},transformUv:function(a){if(300===this.mapping){a.applyMatrix3(this.matrix);if(0>a.x||1<a.x)switch(this.wrapS){case 1E3:a.x-=Math.floor(a.x);break;case 1001:a.x=0>a.x?0:1;break;case 1002:a.x=1===Math.abs(Math.floor(a.x)%2)?Math.ceil(a.x)-a.x:a.x-Math.floor(a.x)}if(0>a.y||1<a.y)switch(this.wrapT){case 1E3:a.y-=Math.floor(a.y);break;case 1001:a.y=0>a.y?0:1;break;case 1002:a.y=1===Math.abs(Math.floor(a.y)%
+2)?Math.ceil(a.y)-a.y:a.y-Math.floor(a.y)}this.flipY&&(a.y=1-a.y)}}});Object.assign(da.prototype,{isVector4:!0,set:function(a,b,c,d){this.x=a;this.y=b;this.z=c;this.w=d;return this},setScalar:function(a){this.w=this.z=this.y=this.x=a;return this},setX:function(a){this.x=a;return this},setY:function(a){this.y=a;return this},setZ:function(a){this.z=a;return this},setW:function(a){this.w=a;return this},setComponent:function(a,b){switch(a){case 0:this.x=b;break;case 1:this.y=b;break;case 2:this.z=b;break;
+case 3:this.w=b;break;default:throw Error("index is out of range: "+a);}return this},getComponent:function(a){switch(a){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw Error("index is out of range: "+a);}},clone:function(){return new this.constructor(this.x,this.y,this.z,this.w)},copy:function(a){this.x=a.x;this.y=a.y;this.z=a.z;this.w=void 0!==a.w?a.w:1;return this},add:function(a,b){if(void 0!==b)return console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead."),
+this.addVectors(a,b);this.x+=a.x;this.y+=a.y;this.z+=a.z;this.w+=a.w;return this},addScalar:function(a){this.x+=a;this.y+=a;this.z+=a;this.w+=a;return this},addVectors:function(a,b){this.x=a.x+b.x;this.y=a.y+b.y;this.z=a.z+b.z;this.w=a.w+b.w;return this},addScaledVector:function(a,b){this.x+=a.x*b;this.y+=a.y*b;this.z+=a.z*b;this.w+=a.w*b;return this},sub:function(a,b){if(void 0!==b)return console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead."),this.subVectors(a,
+b);this.x-=a.x;this.y-=a.y;this.z-=a.z;this.w-=a.w;return this},subScalar:function(a){this.x-=a;this.y-=a;this.z-=a;this.w-=a;return this},subVectors:function(a,b){this.x=a.x-b.x;this.y=a.y-b.y;this.z=a.z-b.z;this.w=a.w-b.w;return this},multiplyScalar:function(a){this.x*=a;this.y*=a;this.z*=a;this.w*=a;return this},applyMatrix4:function(a){var b=this.x,c=this.y,d=this.z,e=this.w;a=a.elements;this.x=a[0]*b+a[4]*c+a[8]*d+a[12]*e;this.y=a[1]*b+a[5]*c+a[9]*d+a[13]*e;this.z=a[2]*b+a[6]*c+a[10]*d+a[14]*
+e;this.w=a[3]*b+a[7]*c+a[11]*d+a[15]*e;return this},divideScalar:function(a){return this.multiplyScalar(1/a)},setAxisAngleFromQuaternion:function(a){this.w=2*Math.acos(a.w);var b=Math.sqrt(1-a.w*a.w);1E-4>b?(this.x=1,this.z=this.y=0):(this.x=a.x/b,this.y=a.y/b,this.z=a.z/b);return this},setAxisAngleFromRotationMatrix:function(a){a=a.elements;var b=a[0];var c=a[4];var d=a[8],e=a[1],f=a[5],g=a[9];var h=a[2];var k=a[6];var l=a[10];if(.01>Math.abs(c-e)&&.01>Math.abs(d-h)&&.01>Math.abs(g-k)){if(.1>Math.abs(c+
+e)&&.1>Math.abs(d+h)&&.1>Math.abs(g+k)&&.1>Math.abs(b+f+l-3))return this.set(1,0,0,0),this;a=Math.PI;b=(b+1)/2;f=(f+1)/2;l=(l+1)/2;c=(c+e)/4;d=(d+h)/4;g=(g+k)/4;b>f&&b>l?.01>b?(k=0,c=h=.707106781):(k=Math.sqrt(b),h=c/k,c=d/k):f>l?.01>f?(k=.707106781,h=0,c=.707106781):(h=Math.sqrt(f),k=c/h,c=g/h):.01>l?(h=k=.707106781,c=0):(c=Math.sqrt(l),k=d/c,h=g/c);this.set(k,h,c,a);return this}a=Math.sqrt((k-g)*(k-g)+(d-h)*(d-h)+(e-c)*(e-c));.001>Math.abs(a)&&(a=1);this.x=(k-g)/a;this.y=(d-h)/a;this.z=(e-c)/a;
+this.w=Math.acos((b+f+l-1)/2);return this},min:function(a){this.x=Math.min(this.x,a.x);this.y=Math.min(this.y,a.y);this.z=Math.min(this.z,a.z);this.w=Math.min(this.w,a.w);return this},max:function(a){this.x=Math.max(this.x,a.x);this.y=Math.max(this.y,a.y);this.z=Math.max(this.z,a.z);this.w=Math.max(this.w,a.w);return this},clamp:function(a,b){this.x=Math.max(a.x,Math.min(b.x,this.x));this.y=Math.max(a.y,Math.min(b.y,this.y));this.z=Math.max(a.z,Math.min(b.z,this.z));this.w=Math.max(a.w,Math.min(b.w,
+this.w));return this},clampScalar:function(){var a,b;return function(c,d){void 0===a&&(a=new da,b=new da);a.set(c,c,c,c);b.set(d,d,d,d);return this.clamp(a,b)}}(),clampLength:function(a,b){var c=this.length();return this.divideScalar(c||1).multiplyScalar(Math.max(a,Math.min(b,c)))},floor:function(){this.x=Math.floor(this.x);this.y=Math.floor(this.y);this.z=Math.floor(this.z);this.w=Math.floor(this.w);return this},ceil:function(){this.x=Math.ceil(this.x);this.y=Math.ceil(this.y);this.z=Math.ceil(this.z);
+this.w=Math.ceil(this.w);return this},round:function(){this.x=Math.round(this.x);this.y=Math.round(this.y);this.z=Math.round(this.z);this.w=Math.round(this.w);return this},roundToZero:function(){this.x=0>this.x?Math.ceil(this.x):Math.floor(this.x);this.y=0>this.y?Math.ceil(this.y):Math.floor(this.y);this.z=0>this.z?Math.ceil(this.z):Math.floor(this.z);this.w=0>this.w?Math.ceil(this.w):Math.floor(this.w);return this},negate:function(){this.x=-this.x;this.y=-this.y;this.z=-this.z;this.w=-this.w;return this},
+dot:function(a){return this.x*a.x+this.y*a.y+this.z*a.z+this.w*a.w},lengthSq:function(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w},length:function(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w)},manhattanLength:function(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w)},normalize:function(){return this.divideScalar(this.length()||1)},setLength:function(a){return this.normalize().multiplyScalar(a)},lerp:function(a,b){this.x+=
+(a.x-this.x)*b;this.y+=(a.y-this.y)*b;this.z+=(a.z-this.z)*b;this.w+=(a.w-this.w)*b;return this},lerpVectors:function(a,b,c){return this.subVectors(b,a).multiplyScalar(c).add(a)},equals:function(a){return a.x===this.x&&a.y===this.y&&a.z===this.z&&a.w===this.w},fromArray:function(a,b){void 0===b&&(b=0);this.x=a[b];this.y=a[b+1];this.z=a[b+2];this.w=a[b+3];return this},toArray:function(a,b){void 0===a&&(a=[]);void 0===b&&(b=0);a[b]=this.x;a[b+1]=this.y;a[b+2]=this.z;a[b+3]=this.w;return a},fromBufferAttribute:function(a,
+b,c){void 0!==c&&console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute().");this.x=a.getX(b);this.y=a.getY(b);this.z=a.getZ(b);this.w=a.getW(b);return this}});Object.assign(Hb.prototype,ja.prototype,{isWebGLRenderTarget:!0,setSize:function(a,b){if(this.width!==a||this.height!==b)this.width=a,this.height=b,this.dispose();this.viewport.set(0,0,a,b);this.scissor.set(0,0,a,b)},clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.width=a.width;this.height=
+a.height;this.viewport.copy(a.viewport);this.texture=a.texture.clone();this.depthBuffer=a.depthBuffer;this.stencilBuffer=a.stencilBuffer;this.depthTexture=a.depthTexture;return this},dispose:function(){this.dispatchEvent({type:"dispose"})}});Ib.prototype=Object.create(Hb.prototype);Ib.prototype.constructor=Ib;Ib.prototype.isWebGLRenderTargetCube=!0;fb.prototype=Object.create(ea.prototype);fb.prototype.constructor=fb;fb.prototype.isDataTexture=!0;Ua.prototype=Object.create(ea.prototype);Ua.prototype.constructor=
+Ua;Ua.prototype.isCubeTexture=!0;Object.defineProperty(Ua.prototype,"images",{get:function(){return this.image},set:function(a){this.image=a}});var Be=new ea,Ce=new Ua,we=[],ye=[],Ae=new Float32Array(16),ze=new Float32Array(9);Ge.prototype.setValue=function(a,b){for(var c=this.seq,d=0,e=c.length;d!==e;++d){var f=c[d];f.setValue(a,b[f.id])}};var Od=/([\w\d_]+)(\])?(\[|\.)?/g;gb.prototype.setValue=function(a,b,c){b=this.map[b];void 0!==b&&b.setValue(a,c,this.renderer)};gb.prototype.setOptional=function(a,
+b,c){b=b[c];void 0!==b&&this.setValue(a,c,b)};gb.upload=function(a,b,c,d){for(var e=0,f=b.length;e!==f;++e){var g=b[e],h=c[g.id];!1!==h.needsUpdate&&g.setValue(a,h.value,d)}};gb.seqWithValue=function(a,b){for(var c=[],d=0,e=a.length;d!==e;++d){var f=a[d];f.id in b&&c.push(f)}return c};var sg={aliceblue:15792383,antiquewhite:16444375,aqua:65535,aquamarine:8388564,azure:15794175,beige:16119260,bisque:16770244,black:0,blanchedalmond:16772045,blue:255,blueviolet:9055202,brown:10824234,burlywood:14596231,
+cadetblue:6266528,chartreuse:8388352,chocolate:13789470,coral:16744272,cornflowerblue:6591981,cornsilk:16775388,crimson:14423100,cyan:65535,darkblue:139,darkcyan:35723,darkgoldenrod:12092939,darkgray:11119017,darkgreen:25600,darkgrey:11119017,darkkhaki:12433259,darkmagenta:9109643,darkolivegreen:5597999,darkorange:16747520,darkorchid:10040012,darkred:9109504,darksalmon:15308410,darkseagreen:9419919,darkslateblue:4734347,darkslategray:3100495,darkslategrey:3100495,darkturquoise:52945,darkviolet:9699539,
+deeppink:16716947,deepskyblue:49151,dimgray:6908265,dimgrey:6908265,dodgerblue:2003199,firebrick:11674146,floralwhite:16775920,forestgreen:2263842,fuchsia:16711935,gainsboro:14474460,ghostwhite:16316671,gold:16766720,goldenrod:14329120,gray:8421504,green:32768,greenyellow:11403055,grey:8421504,honeydew:15794160,hotpink:16738740,indianred:13458524,indigo:4915330,ivory:16777200,khaki:15787660,lavender:15132410,lavenderblush:16773365,lawngreen:8190976,lemonchiffon:16775885,lightblue:11393254,lightcoral:15761536,
+lightcyan:14745599,lightgoldenrodyellow:16448210,lightgray:13882323,lightgreen:9498256,lightgrey:13882323,lightpink:16758465,lightsalmon:16752762,lightseagreen:2142890,lightskyblue:8900346,lightslategray:7833753,lightslategrey:7833753,lightsteelblue:11584734,lightyellow:16777184,lime:65280,limegreen:3329330,linen:16445670,magenta:16711935,maroon:8388608,mediumaquamarine:6737322,mediumblue:205,mediumorchid:12211667,mediumpurple:9662683,mediumseagreen:3978097,mediumslateblue:8087790,mediumspringgreen:64154,
+mediumturquoise:4772300,mediumvioletred:13047173,midnightblue:1644912,mintcream:16121850,mistyrose:16770273,moccasin:16770229,navajowhite:16768685,navy:128,oldlace:16643558,olive:8421376,olivedrab:7048739,orange:16753920,orangered:16729344,orchid:14315734,palegoldenrod:15657130,palegreen:10025880,paleturquoise:11529966,palevioletred:14381203,papayawhip:16773077,peachpuff:16767673,peru:13468991,pink:16761035,plum:14524637,powderblue:11591910,purple:8388736,rebeccapurple:6697881,red:16711680,rosybrown:12357519,
+royalblue:4286945,saddlebrown:9127187,salmon:16416882,sandybrown:16032864,seagreen:3050327,seashell:16774638,sienna:10506797,silver:12632256,skyblue:8900331,slateblue:6970061,slategray:7372944,slategrey:7372944,snow:16775930,springgreen:65407,steelblue:4620980,tan:13808780,teal:32896,thistle:14204888,tomato:16737095,turquoise:4251856,violet:15631086,wheat:16113331,white:16777215,whitesmoke:16119285,yellow:16776960,yellowgreen:10145074};Object.assign(H.prototype,{isColor:!0,r:1,g:1,b:1,set:function(a){a&&
+a.isColor?this.copy(a):"number"===typeof a?this.setHex(a):"string"===typeof a&&this.setStyle(a);return this},setScalar:function(a){this.b=this.g=this.r=a;return this},setHex:function(a){a=Math.floor(a);this.r=(a>>16&255)/255;this.g=(a>>8&255)/255;this.b=(a&255)/255;return this},setRGB:function(a,b,c){this.r=a;this.g=b;this.b=c;return this},setHSL:function(){function a(a,c,d){0>d&&(d+=1);1<d&&--d;return d<1/6?a+6*(c-a)*d:.5>d?c:d<2/3?a+6*(c-a)*(2/3-d):a}return function(b,c,d){b=R.euclideanModulo(b,
+1);c=R.clamp(c,0,1);d=R.clamp(d,0,1);0===c?this.r=this.g=this.b=d:(c=.5>=d?d*(1+c):d+c-d*c,d=2*d-c,this.r=a(d,c,b+1/3),this.g=a(d,c,b),this.b=a(d,c,b-1/3));return this}}(),setStyle:function(a){function b(b){void 0!==b&&1>parseFloat(b)&&console.warn("THREE.Color: Alpha component of "+a+" will be ignored.")}var c;if(c=/^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec(a)){var d=c[2];switch(c[1]){case "rgb":case "rgba":if(c=/^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec(d))return this.r=Math.min(255,
+parseInt(c[1],10))/255,this.g=Math.min(255,parseInt(c[2],10))/255,this.b=Math.min(255,parseInt(c[3],10))/255,b(c[5]),this;if(c=/^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec(d))return this.r=Math.min(100,parseInt(c[1],10))/100,this.g=Math.min(100,parseInt(c[2],10))/100,this.b=Math.min(100,parseInt(c[3],10))/100,b(c[5]),this;break;case "hsl":case "hsla":if(c=/^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec(d)){var d=parseFloat(c[1])/360,
+e=parseInt(c[2],10)/100,f=parseInt(c[3],10)/100;b(c[5]);return this.setHSL(d,e,f)}}}else if(c=/^\#([A-Fa-f0-9]+)$/.exec(a)){c=c[1];d=c.length;if(3===d)return this.r=parseInt(c.charAt(0)+c.charAt(0),16)/255,this.g=parseInt(c.charAt(1)+c.charAt(1),16)/255,this.b=parseInt(c.charAt(2)+c.charAt(2),16)/255,this;if(6===d)return this.r=parseInt(c.charAt(0)+c.charAt(1),16)/255,this.g=parseInt(c.charAt(2)+c.charAt(3),16)/255,this.b=parseInt(c.charAt(4)+c.charAt(5),16)/255,this}a&&0<a.length&&(c=sg[a],void 0!==
+c?this.setHex(c):console.warn("THREE.Color: Unknown color "+a));return this},clone:function(){return new this.constructor(this.r,this.g,this.b)},copy:function(a){this.r=a.r;this.g=a.g;this.b=a.b;return this},copyGammaToLinear:function(a,b){void 0===b&&(b=2);this.r=Math.pow(a.r,b);this.g=Math.pow(a.g,b);this.b=Math.pow(a.b,b);return this},copyLinearToGamma:function(a,b){void 0===b&&(b=2);b=0<b?1/b:1;this.r=Math.pow(a.r,b);this.g=Math.pow(a.g,b);this.b=Math.pow(a.b,b);return this},convertGammaToLinear:function(){var a=
+this.r,b=this.g,c=this.b;this.r=a*a;this.g=b*b;this.b=c*c;return this},convertLinearToGamma:function(){this.r=Math.sqrt(this.r);this.g=Math.sqrt(this.g);this.b=Math.sqrt(this.b);return this},getHex:function(){return 255*this.r<<16^255*this.g<<8^255*this.b<<0},getHexString:function(){return("000000"+this.getHex().toString(16)).slice(-6)},getHSL:function(a){a=a||{h:0,s:0,l:0};var b=this.r,c=this.g,d=this.b,e=Math.max(b,c,d),f=Math.min(b,c,d),g,h=(f+e)/2;if(f===e)f=g=0;else{var k=e-f,f=.5>=h?k/(e+f):
+k/(2-e-f);switch(e){case b:g=(c-d)/k+(c<d?6:0);break;case c:g=(d-b)/k+2;break;case d:g=(b-c)/k+4}g/=6}a.h=g;a.s=f;a.l=h;return a},getStyle:function(){return"rgb("+(255*this.r|0)+","+(255*this.g|0)+","+(255*this.b|0)+")"},offsetHSL:function(a,b,c){var d=this.getHSL();d.h+=a;d.s+=b;d.l+=c;this.setHSL(d.h,d.s,d.l);return this},add:function(a){this.r+=a.r;this.g+=a.g;this.b+=a.b;return this},addColors:function(a,b){this.r=a.r+b.r;this.g=a.g+b.g;this.b=a.b+b.b;return this},addScalar:function(a){this.r+=
+a;this.g+=a;this.b+=a;return this},sub:function(a){this.r=Math.max(0,this.r-a.r);this.g=Math.max(0,this.g-a.g);this.b=Math.max(0,this.b-a.b);return this},multiply:function(a){this.r*=a.r;this.g*=a.g;this.b*=a.b;return this},multiplyScalar:function(a){this.r*=a;this.g*=a;this.b*=a;return this},lerp:function(a,b){this.r+=(a.r-this.r)*b;this.g+=(a.g-this.g)*b;this.b+=(a.b-this.b)*b;return this},equals:function(a){return a.r===this.r&&a.g===this.g&&a.b===this.b},fromArray:function(a,b){void 0===b&&(b=
+0);this.r=a[b];this.g=a[b+1];this.b=a[b+2];return this},toArray:function(a,b){void 0===a&&(a=[]);void 0===b&&(b=0);a[b]=this.r;a[b+1]=this.g;a[b+2]=this.b;return a},toJSON:function(){return this.getHex()}});var E={common:{diffuse:{value:new H(15658734)},opacity:{value:1},map:{value:null},uvTransform:{value:new ra},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1},refractionRatio:{value:.98}},aomap:{aoMap:{value:null},
+aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new C(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:2.5E-4},fogNear:{value:1},
+fogFar:{value:2E3},fogColor:{value:new H(16777215)}},lights:{ambientLightColor:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{},shadow:{},shadowBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{},shadow:{},shadowBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},
+pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{},shadow:{},shadowBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}}},points:{diffuse:{value:new H(15658734)},opacity:{value:1},size:{value:1},scale:{value:1},map:{value:null},uvTransform:{value:new ra}}},
+Ea={merge:function(a){for(var b={},c=0;c<a.length;c++){var d=this.clone(a[c]),e;for(e in d)b[e]=d[e]}return b},clone:function(a){var b={},c;for(c in a){b[c]={};for(var d in a[c]){var e=a[c][d];e&&(e.isColor||e.isMatrix3||e.isMatrix4||e.isVector2||e.isVector3||e.isVector4||e.isTexture)?b[c][d]=e.clone():Array.isArray(e)?b[c][d]=e.slice():b[c][d]=e}}return b}},W={alphamap_fragment:"#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif\n",alphamap_pars_fragment:"#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif\n",
+alphatest_fragment:"#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif\n",aomap_fragment:"#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif\n",
+aomap_pars_fragment:"#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif",begin_vertex:"\nvec3 transformed = vec3( position );\n",beginnormal_vertex:"\nvec3 objectNormal = vec3( normal );\n",bsdfs:"float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\tif( decayExponent > 0.0 ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\treturn distanceFalloff * maxDistanceCutoffFactor;\n#else\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n#endif\n\t}\n\treturn 1.0;\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE  = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS  = 0.5 / LUT_SIZE;\n\tfloat theta = acos( dot( N, V ) );\n\tvec2 uv = vec2(\n\t\tsqrt( saturate( roughness ) ),\n\t\tsaturate( theta / ( 0.5 * PI ) ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.86267 + (0.49788 + 0.01436 * y ) * y;\n\tfloat b = 3.45068 + (4.18814 + y) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = (x > 0.0) ? v : 0.5 * inversesqrt( 1.0 - x * x ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tvec3 result = vec3( LTC_ClippedSphereFormFactor( vectorFormFactor ) );\n\treturn result;\n}\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\n\treturn specularColor * AB.x + AB.y;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n",
+bumpmap_pars_fragment:"#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif\n",
+clipping_planes_fragment:"#if NUM_CLIPPING_PLANES > 0\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; ++ i ) {\n\t\tvec4 plane = clippingPlanes[ i ];\n\t\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t\t\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; ++ i ) {\n\t\t\tvec4 plane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\tif ( clipped ) discard;\n\t\n\t#endif\n#endif\n",
+clipping_planes_pars_fragment:"#if NUM_CLIPPING_PLANES > 0\n\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\n\t\tvarying vec3 vViewPosition;\n\t#endif\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif\n",clipping_planes_pars_vertex:"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvarying vec3 vViewPosition;\n#endif\n",clipping_planes_vertex:"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n",
+color_fragment:"#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif",color_pars_fragment:"#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif\n",color_pars_vertex:"#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif",color_vertex:"#ifdef USE_COLOR\n\tvColor.xyz = color.xyz;\n#endif",common:"#define PI 3.14159265359\n#define PI2 6.28318530718\n#define PI_HALF 1.5707963267949\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\n",
+cube_uv_reflection_fragment:"#ifdef ENVMAP_TYPE_CUBE_UV\n#define cubeUV_textureSize (1024.0)\nint getFaceFromDirection(vec3 direction) {\n\tvec3 absDirection = abs(direction);\n\tint face = -1;\n\tif( absDirection.x > absDirection.z ) {\n\t\tif(absDirection.x > absDirection.y )\n\t\t\tface = direction.x > 0.0 ? 0 : 3;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\telse {\n\t\tif(absDirection.z > absDirection.y )\n\t\t\tface = direction.z > 0.0 ? 2 : 5;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\treturn face;\n}\n#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\n\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\n\tfloat dxRoughness = dFdx(roughness);\n\tfloat dyRoughness = dFdy(roughness);\n\tvec3 dx = dFdx( vec * scale * dxRoughness );\n\tvec3 dy = dFdy( vec * scale * dyRoughness );\n\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\n\td = clamp(d, 1.0, cubeUV_rangeClamp);\n\tfloat mipLevel = 0.5 * log2(d);\n\treturn vec2(floor(mipLevel), fract(mipLevel));\n}\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\n\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\n\tfloat a = 16.0 * cubeUV_rcpTextureSize;\n\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\n\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\n\tfloat powScale = exp2_packed.x * exp2_packed.y;\n\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\n\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\n\tbool bRes = mipLevel == 0.0;\n\tscale =  bRes && (scale < a) ? a : scale;\n\tvec3 r;\n\tvec2 offset;\n\tint face = getFaceFromDirection(direction);\n\tfloat rcpPowScale = 1.0 / powScale;\n\tif( face == 0) {\n\t\tr = vec3(direction.x, -direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 1) {\n\t\tr = vec3(direction.y, direction.x, direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 2) {\n\t\tr = vec3(direction.z, direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 3) {\n\t\tr = vec3(direction.x, direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse if( face == 4) {\n\t\tr = vec3(direction.y, direction.x, -direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse {\n\t\tr = vec3(direction.z, -direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\tr = normalize(r);\n\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\n\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\n\tvec2 base = offset + vec2( texelOffset );\n\treturn base + s * ( scale - 2.0 * texelOffset );\n}\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\nvec4 textureCubeUV(vec3 reflectedDirection, float roughness ) {\n\tfloat roughnessVal = roughness* cubeUV_maxLods3;\n\tfloat r1 = floor(roughnessVal);\n\tfloat r2 = r1 + 1.0;\n\tfloat t = fract(roughnessVal);\n\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\n\tfloat s = mipInfo.y;\n\tfloat level0 = mipInfo.x;\n\tfloat level1 = level0 + 1.0;\n\tlevel1 = level1 > 5.0 ? 5.0 : level1;\n\tlevel0 += min( floor( s + 0.5 ), 5.0 );\n\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\n\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\n\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\n\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\n\tvec4 result = mix(color10, color20, t);\n\treturn vec4(result.rgb, 1.0);\n}\n#endif\n",
+defaultnormal_vertex:"vec3 transformedNormal = normalMatrix * objectNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n",displacementmap_pars_vertex:"#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif\n",displacementmap_vertex:"#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n#endif\n",
+emissivemap_fragment:"#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif\n",emissivemap_pars_fragment:"#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif\n",encodings_fragment:"  gl_FragColor = linearToOutputTexel( gl_FragColor );\n",encodings_pars_fragment:"\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.xyz * value.w * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat M      = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM            = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat D      = max( maxRange / maxRGB, 1.0 );\n\tD            = min( floor( D ) / 255.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value )  {\n\tvec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\n\tXp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract(Le);\n\tvResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\n\treturn vec4( max(vRGB, 0.0), 1.0 );\n}\n",
+envmap_fragment:"#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\treflectVec = normalize( reflectVec );\n\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\treflectVec = normalize( reflectVec );\n\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\tenvColor = envMapTexelToLinear( envColor );\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif\n",
+envmap_pars_fragment:"#if defined( USE_ENVMAP ) || defined( PHYSICAL )\n\tuniform float reflectivity;\n\tuniform float envMapIntensity;\n#endif\n#ifdef USE_ENVMAP\n\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\n\t\tvarying vec3 vWorldPosition;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif\n",
+envmap_pars_vertex:"#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif\n",envmap_vertex:"#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif\n",
+fog_vertex:"\n#ifdef USE_FOG\nfogDepth = -mvPosition.z;\n#endif",fog_pars_vertex:"#ifdef USE_FOG\n  varying float fogDepth;\n#endif\n",fog_fragment:"#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif\n",fog_pars_fragment:"#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif\n",
+gradientmap_pars_fragment:"#ifdef TOON\n\tuniform sampler2D gradientMap;\n\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\t\tfloat dotNL = dot( normal, lightDirection );\n\t\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t\t#ifdef USE_GRADIENTMAP\n\t\t\treturn texture2D( gradientMap, coord ).rgb;\n\t\t#else\n\t\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t\t#endif\n\t}\n#endif\n",lightmap_fragment:"#ifdef USE_LIGHTMAP\n\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n#endif\n",
+lightmap_pars_fragment:"#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif",lights_lambert_vertex:"vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\n#if NUM_POINT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_DIR_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n#endif\n",
+lights_pars:"uniform vec3 ambientLightColor;\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t\tfloat shadowCameraNear;\n\t\tfloat shadowCameraFar;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltcMat;\tuniform sampler2D ltcMag;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif\n#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( queryVec, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\tvec4 envMapColor = textureCubeUV(queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent));\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif\n",
+lights_phong_fragment:"BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;\n",lights_phong_pars_fragment:"varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifdef TOON\n\t\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#else\n\t\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\t\tvec3 irradiance = dotNL * directLight.color;\n\t#endif\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)\n",
+lights_physical_fragment:"PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\n#ifdef STANDARD\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.clearCoat = saturate( clearCoat );\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\n#endif\n",
+lights_physical_pars_fragment:"struct PhysicalMaterial {\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\t#ifndef STANDARD\n\t\tfloat clearCoat;\n\t\tfloat clearCoatRoughness;\n\t#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos - halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos + halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos + halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos - halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tfloat norm = texture2D( ltcMag, uv ).a;\n\t\tvec4 t = texture2D( ltcMat, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3(   1,   0, t.y ),\n\t\t\tvec3(   0, t.z,   0 ),\n\t\t\tvec3( t.w,   0, t.x )\n\t\t);\n\t\treflectedLight.directSpecular += lightColor * material.specularColor * norm * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifndef STANDARD\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#ifndef STANDARD\n\t\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifndef STANDARD\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\tfloat dotNL = dotNV;\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\t#ifndef STANDARD\n\t\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\n#define Material_ClearCoat_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}\n",
+lights_template:"\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\t#ifdef USE_LIGHTMAP\n\t\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tirradiance += getLightProbeIndirectIrradiance( geometry, 8 );\n\t#endif\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tvec3 radiance = getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), 8 );\n\t#ifndef STANDARD\n\t\tvec3 clearCoatRadiance = getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), 8 );\n\t#else\n\t\tvec3 clearCoatRadiance = vec3( 0.0 );\n\t#endif\n\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\n#endif\n",
+logdepthbuf_fragment:"#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif",logdepthbuf_pars_fragment:"#ifdef USE_LOGDEPTHBUF\n\tuniform float logDepthBufFC;\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n#endif\n",logdepthbuf_pars_vertex:"#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n\tuniform float logDepthBufFC;\n#endif",logdepthbuf_vertex:"#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t#else\n\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\tgl_Position.z *= gl_Position.w;\n\t#endif\n#endif\n",
+map_fragment:"#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif\n",map_pars_fragment:"#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n",map_particle_fragment:"#ifdef USE_MAP\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n",map_particle_pars_fragment:"#ifdef USE_MAP\n\tuniform mat3 uvTransform;\n\tuniform sampler2D map;\n#endif\n",
+metalnessmap_fragment:"float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif\n",metalnessmap_pars_fragment:"#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif",morphnormal_vertex:"#ifdef USE_MORPHNORMALS\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n#endif\n",
+morphtarget_pars_vertex:"#ifdef USE_MORPHTARGETS\n\t#ifndef USE_MORPHNORMALS\n\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif",morphtarget_vertex:"#ifdef USE_MORPHTARGETS\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\t#endif\n#endif\n",
+normal_fragment:"#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n#endif\n#ifdef USE_NORMALMAP\n\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif\n",
+normalmap_pars_fragment:"#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 S = normalize( q0 * st1.t - q1 * st0.t );\n\t\tvec3 T = normalize( -q0 * st1.s + q1 * st0.s );\n\t\tvec3 N = normalize( surf_norm );\n\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\tmapN.xy = normalScale * mapN.xy;\n\t\tmat3 tsn = mat3( S, T, N );\n\t\treturn normalize( tsn * mapN );\n\t}\n#endif\n",
+packing:"vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}\n",
+premultiplied_alpha_fragment:"#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif\n",project_vertex:"vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\ngl_Position = projectionMatrix * mvPosition;\n",dithering_fragment:"#if defined( DITHERING )\n  gl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif\n",dithering_pars_fragment:"#if defined( DITHERING )\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif\n",
+roughnessmap_fragment:"float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif\n",roughnessmap_pars_fragment:"#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif",shadowmap_pars_fragment:"#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\n\t\tconst vec2 offset = vec2( 0.0, 1.0 );\n\t\tvec2 texelSize = vec2( 1.0 ) / size;\n\t\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\n\t\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\n\t\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\n\t\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\n\t\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\n\t\tvec2 f = fract( uv * size + 0.5 );\n\t\tfloat a = mix( lb, lt, f.y );\n\t\tfloat b = mix( rb, rt, f.y );\n\t\tfloat c = mix( a, b, f.x );\n\t\treturn c;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif\n",
+shadowmap_pars_vertex:"#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n#endif\n",
+shadowmap_vertex:"#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n#endif\n",
+shadowmask_pars_fragment:"float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tDirectionalLight directionalLight;\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tSpotLight spotLight;\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tPointLight pointLight;\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#endif\n\t#endif\n\treturn shadow;\n}\n",
+skinbase_vertex:"#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif",skinning_pars_vertex:"#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif\n",
+skinning_vertex:"#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif\n",skinnormal_vertex:"#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n#endif\n",
+specularmap_fragment:"float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif",specularmap_pars_fragment:"#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif",tonemapping_fragment:"#if defined( TONE_MAPPING )\n  gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif\n",tonemapping_pars_fragment:"#ifndef saturate\n\t#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nuniform float toneMappingWhitePoint;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\nvec3 Uncharted2ToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\n",
+uv_pars_fragment:"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n#endif",uv_pars_vertex:"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif\n",
+uv_vertex:"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif",uv2_pars_fragment:"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif",uv2_pars_vertex:"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n#endif",
+uv2_vertex:"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = uv2;\n#endif",worldpos_vertex:"#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n#endif\n",cube_frag:"uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldPosition;\nvoid main() {\n\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\n\tgl_FragColor.a *= opacity;\n}\n",
+cube_vert:"varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}\n",depth_frag:"#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( gl_FragCoord.z ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\n\t#endif\n}\n",
+depth_vert:"#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n}\n",
+distanceRGBA_frag:"#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}\n",
+distanceRGBA_vert:"#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}\n",
+equirect_frag:"uniform sampler2D tEquirect;\nvarying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldPosition );\n\tvec2 sampleUV;\n\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n}\n",equirect_vert:"varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}\n",
+linedashed_frag:"uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n",
+linedashed_vert:"uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\tvLineDistance = scale * lineDistance;\n\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}\n",
+meshbasic_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n",
+meshbasic_vert:"#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}\n",
+meshlambert_frag:"uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n",
+meshlambert_vert:"#define LAMBERT\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n",
+meshphong_frag:"#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_template>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n",
+meshphong_vert:"#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n",
+meshphysical_frag:"#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <lights_pars>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_template>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n",
+meshphysical_vert:"#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n",
+normal_frag:"#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\nvoid main() {\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}\n",
+normal_vert:"#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}\n",
+points_frag:"uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n",
+points_vert:"uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#ifdef USE_SIZEATTENUATION\n\t\tgl_PointSize = size * ( scale / - mvPosition.z );\n\t#else\n\t\tgl_PointSize = size;\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n",
+shadow_frag:"uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <fog_fragment>\n}\n",shadow_vert:"#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n"},
+mb={basic:{uniforms:Ea.merge([E.common,E.specularmap,E.envmap,E.aomap,E.lightmap,E.fog]),vertexShader:W.meshbasic_vert,fragmentShader:W.meshbasic_frag},lambert:{uniforms:Ea.merge([E.common,E.specularmap,E.envmap,E.aomap,E.lightmap,E.emissivemap,E.fog,E.lights,{emissive:{value:new H(0)}}]),vertexShader:W.meshlambert_vert,fragmentShader:W.meshlambert_frag},phong:{uniforms:Ea.merge([E.common,E.specularmap,E.envmap,E.aomap,E.lightmap,E.emissivemap,E.bumpmap,E.normalmap,E.displacementmap,E.gradientmap,
+E.fog,E.lights,{emissive:{value:new H(0)},specular:{value:new H(1118481)},shininess:{value:30}}]),vertexShader:W.meshphong_vert,fragmentShader:W.meshphong_frag},standard:{uniforms:Ea.merge([E.common,E.envmap,E.aomap,E.lightmap,E.emissivemap,E.bumpmap,E.normalmap,E.displacementmap,E.roughnessmap,E.metalnessmap,E.fog,E.lights,{emissive:{value:new H(0)},roughness:{value:.5},metalness:{value:.5},envMapIntensity:{value:1}}]),vertexShader:W.meshphysical_vert,fragmentShader:W.meshphysical_frag},points:{uniforms:Ea.merge([E.points,
+E.fog]),vertexShader:W.points_vert,fragmentShader:W.points_frag},dashed:{uniforms:Ea.merge([E.common,E.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:W.linedashed_vert,fragmentShader:W.linedashed_frag},depth:{uniforms:Ea.merge([E.common,E.displacementmap]),vertexShader:W.depth_vert,fragmentShader:W.depth_frag},normal:{uniforms:Ea.merge([E.common,E.bumpmap,E.normalmap,E.displacementmap,{opacity:{value:1}}]),vertexShader:W.normal_vert,fragmentShader:W.normal_frag},cube:{uniforms:{tCube:{value:null},
+tFlip:{value:-1},opacity:{value:1}},vertexShader:W.cube_vert,fragmentShader:W.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:W.equirect_vert,fragmentShader:W.equirect_frag},distanceRGBA:{uniforms:Ea.merge([E.common,E.displacementmap,{referencePosition:{value:new p},nearDistance:{value:1},farDistance:{value:1E3}}]),vertexShader:W.distanceRGBA_vert,fragmentShader:W.distanceRGBA_frag},shadow:{uniforms:Ea.merge([E.lights,E.fog,{color:{value:new H(0)},opacity:{value:1}}]),vertexShader:W.shadow_vert,
+fragmentShader:W.shadow_frag}};mb.physical={uniforms:Ea.merge([mb.standard.uniforms,{clearCoat:{value:0},clearCoatRoughness:{value:0}}]),vertexShader:W.meshphysical_vert,fragmentShader:W.meshphysical_frag};Object.assign(kd.prototype,{set:function(a,b){this.min.copy(a);this.max.copy(b);return this},setFromPoints:function(a){this.makeEmpty();for(var b=0,c=a.length;b<c;b++)this.expandByPoint(a[b]);return this},setFromCenterAndSize:function(){var a=new C;return function(b,c){c=a.copy(c).multiplyScalar(.5);
+this.min.copy(b).sub(c);this.max.copy(b).add(c);return this}}(),clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.min.copy(a.min);this.max.copy(a.max);return this},makeEmpty:function(){this.min.x=this.min.y=Infinity;this.max.x=this.max.y=-Infinity;return this},isEmpty:function(){return this.max.x<this.min.x||this.max.y<this.min.y},getCenter:function(a){a=a||new C;return this.isEmpty()?a.set(0,0):a.addVectors(this.min,this.max).multiplyScalar(.5)},getSize:function(a){a=
+a||new C;return this.isEmpty()?a.set(0,0):a.subVectors(this.max,this.min)},expandByPoint:function(a){this.min.min(a);this.max.max(a);return this},expandByVector:function(a){this.min.sub(a);this.max.add(a);return this},expandByScalar:function(a){this.min.addScalar(-a);this.max.addScalar(a);return this},containsPoint:function(a){return a.x<this.min.x||a.x>this.max.x||a.y<this.min.y||a.y>this.max.y?!1:!0},containsBox:function(a){return this.min.x<=a.min.x&&a.max.x<=this.max.x&&this.min.y<=a.min.y&&a.max.y<=
+this.max.y},getParameter:function(a,b){return(b||new C).set((a.x-this.min.x)/(this.max.x-this.min.x),(a.y-this.min.y)/(this.max.y-this.min.y))},intersectsBox:function(a){return a.max.x<this.min.x||a.min.x>this.max.x||a.max.y<this.min.y||a.min.y>this.max.y?!1:!0},clampPoint:function(a,b){return(b||new C).copy(a).clamp(this.min,this.max)},distanceToPoint:function(){var a=new C;return function(b){return a.copy(b).clamp(this.min,this.max).sub(b).length()}}(),intersect:function(a){this.min.max(a.min);
+this.max.min(a.max);return this},union:function(a){this.min.min(a.min);this.max.max(a.max);return this},translate:function(a){this.min.add(a);this.max.add(a);return this},equals:function(a){return a.min.equals(this.min)&&a.max.equals(this.max)}});tc.prototype=Object.create(ea.prototype);tc.prototype.constructor=tc;var Lf=0;Object.assign(Q.prototype,ja.prototype,{isMaterial:!0,onBeforeCompile:function(){},setValues:function(a){if(void 0!==a)for(var b in a){var c=a[b];if(void 0===c)console.warn("THREE.Material: '"+
+b+"' parameter is undefined.");else if("shading"===b)console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead."),this.flatShading=1===c?!0:!1;else{var d=this[b];void 0===d?console.warn("THREE."+this.type+": '"+b+"' is not a property of this material."):d&&d.isColor?d.set(c):d&&d.isVector3&&c&&c.isVector3?d.copy(c):this[b]="overdraw"===b?Number(c):c}}},toJSON:function(a){function b(a){var b=[],c;for(c in a){var d=a[c];delete d.metadata;b.push(d)}return b}var c=
+void 0===a||"string"===typeof a;c&&(a={textures:{},images:{}});var d={metadata:{version:4.5,type:"Material",generator:"Material.toJSON"}};d.uuid=this.uuid;d.type=this.type;""!==this.name&&(d.name=this.name);this.color&&this.color.isColor&&(d.color=this.color.getHex());void 0!==this.roughness&&(d.roughness=this.roughness);void 0!==this.metalness&&(d.metalness=this.metalness);this.emissive&&this.emissive.isColor&&(d.emissive=this.emissive.getHex());1!==this.emissiveIntensity&&(d.emissiveIntensity=this.emissiveIntensity);
+this.specular&&this.specular.isColor&&(d.specular=this.specular.getHex());void 0!==this.shininess&&(d.shininess=this.shininess);void 0!==this.clearCoat&&(d.clearCoat=this.clearCoat);void 0!==this.clearCoatRoughness&&(d.clearCoatRoughness=this.clearCoatRoughness);this.map&&this.map.isTexture&&(d.map=this.map.toJSON(a).uuid);this.alphaMap&&this.alphaMap.isTexture&&(d.alphaMap=this.alphaMap.toJSON(a).uuid);this.lightMap&&this.lightMap.isTexture&&(d.lightMap=this.lightMap.toJSON(a).uuid);this.bumpMap&&
+this.bumpMap.isTexture&&(d.bumpMap=this.bumpMap.toJSON(a).uuid,d.bumpScale=this.bumpScale);this.normalMap&&this.normalMap.isTexture&&(d.normalMap=this.normalMap.toJSON(a).uuid,d.normalScale=this.normalScale.toArray());this.displacementMap&&this.displacementMap.isTexture&&(d.displacementMap=this.displacementMap.toJSON(a).uuid,d.displacementScale=this.displacementScale,d.displacementBias=this.displacementBias);this.roughnessMap&&this.roughnessMap.isTexture&&(d.roughnessMap=this.roughnessMap.toJSON(a).uuid);
+this.metalnessMap&&this.metalnessMap.isTexture&&(d.metalnessMap=this.metalnessMap.toJSON(a).uuid);this.emissiveMap&&this.emissiveMap.isTexture&&(d.emissiveMap=this.emissiveMap.toJSON(a).uuid);this.specularMap&&this.specularMap.isTexture&&(d.specularMap=this.specularMap.toJSON(a).uuid);this.envMap&&this.envMap.isTexture&&(d.envMap=this.envMap.toJSON(a).uuid,d.reflectivity=this.reflectivity);this.gradientMap&&this.gradientMap.isTexture&&(d.gradientMap=this.gradientMap.toJSON(a).uuid);void 0!==this.size&&
+(d.size=this.size);void 0!==this.sizeAttenuation&&(d.sizeAttenuation=this.sizeAttenuation);1!==this.blending&&(d.blending=this.blending);!0===this.flatShading&&(d.flatShading=this.flatShading);0!==this.side&&(d.side=this.side);0!==this.vertexColors&&(d.vertexColors=this.vertexColors);1>this.opacity&&(d.opacity=this.opacity);!0===this.transparent&&(d.transparent=this.transparent);d.depthFunc=this.depthFunc;d.depthTest=this.depthTest;d.depthWrite=this.depthWrite;0!==this.rotation&&(d.rotation=this.rotation);
+1!==this.linewidth&&(d.linewidth=this.linewidth);void 0!==this.dashSize&&(d.dashSize=this.dashSize);void 0!==this.gapSize&&(d.gapSize=this.gapSize);void 0!==this.scale&&(d.scale=this.scale);!0===this.dithering&&(d.dithering=!0);0<this.alphaTest&&(d.alphaTest=this.alphaTest);!0===this.premultipliedAlpha&&(d.premultipliedAlpha=this.premultipliedAlpha);!0===this.wireframe&&(d.wireframe=this.wireframe);1<this.wireframeLinewidth&&(d.wireframeLinewidth=this.wireframeLinewidth);"round"!==this.wireframeLinecap&&
+(d.wireframeLinecap=this.wireframeLinecap);"round"!==this.wireframeLinejoin&&(d.wireframeLinejoin=this.wireframeLinejoin);!0===this.morphTargets&&(d.morphTargets=!0);!0===this.skinning&&(d.skinning=!0);!1===this.visible&&(d.visible=!1);"{}"!==JSON.stringify(this.userData)&&(d.userData=this.userData);c&&(c=b(a.textures),a=b(a.images),0<c.length&&(d.textures=c),0<a.length&&(d.images=a));return d},clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.name=a.name;this.fog=a.fog;
+this.lights=a.lights;this.blending=a.blending;this.side=a.side;this.flatShading=a.flatShading;this.vertexColors=a.vertexColors;this.opacity=a.opacity;this.transparent=a.transparent;this.blendSrc=a.blendSrc;this.blendDst=a.blendDst;this.blendEquation=a.blendEquation;this.blendSrcAlpha=a.blendSrcAlpha;this.blendDstAlpha=a.blendDstAlpha;this.blendEquationAlpha=a.blendEquationAlpha;this.depthFunc=a.depthFunc;this.depthTest=a.depthTest;this.depthWrite=a.depthWrite;this.colorWrite=a.colorWrite;this.precision=
+a.precision;this.polygonOffset=a.polygonOffset;this.polygonOffsetFactor=a.polygonOffsetFactor;this.polygonOffsetUnits=a.polygonOffsetUnits;this.dithering=a.dithering;this.alphaTest=a.alphaTest;this.premultipliedAlpha=a.premultipliedAlpha;this.overdraw=a.overdraw;this.visible=a.visible;this.userData=JSON.parse(JSON.stringify(a.userData));this.clipShadows=a.clipShadows;this.clipIntersection=a.clipIntersection;a=a.clippingPlanes;var b=null;if(null!==a)for(var c=a.length,b=Array(c),d=0;d!==c;++d)b[d]=
+a[d].clone();this.clippingPlanes=b;return this},dispose:function(){this.dispatchEvent({type:"dispose"})}});Wa.prototype=Object.create(Q.prototype);Wa.prototype.constructor=Wa;Wa.prototype.isMeshDepthMaterial=!0;Wa.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.depthPacking=a.depthPacking;this.skinning=a.skinning;this.morphTargets=a.morphTargets;this.map=a.map;this.alphaMap=a.alphaMap;this.displacementMap=a.displacementMap;this.displacementScale=a.displacementScale;this.displacementBias=
+a.displacementBias;this.wireframe=a.wireframe;this.wireframeLinewidth=a.wireframeLinewidth;return this};Xa.prototype=Object.create(Q.prototype);Xa.prototype.constructor=Xa;Xa.prototype.isMeshDistanceMaterial=!0;Xa.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.referencePosition.copy(a.referencePosition);this.nearDistance=a.nearDistance;this.farDistance=a.farDistance;this.skinning=a.skinning;this.morphTargets=a.morphTargets;this.map=a.map;this.alphaMap=a.alphaMap;this.displacementMap=
+a.displacementMap;this.displacementScale=a.displacementScale;this.displacementBias=a.displacementBias;return this};Object.assign(Oa.prototype,{isBox3:!0,set:function(a,b){this.min.copy(a);this.max.copy(b);return this},setFromArray:function(a){for(var b=Infinity,c=Infinity,d=Infinity,e=-Infinity,f=-Infinity,g=-Infinity,h=0,k=a.length;h<k;h+=3){var l=a[h],q=a[h+1],n=a[h+2];l<b&&(b=l);q<c&&(c=q);n<d&&(d=n);l>e&&(e=l);q>f&&(f=q);n>g&&(g=n)}this.min.set(b,c,d);this.max.set(e,f,g);return this},setFromBufferAttribute:function(a){for(var b=
+Infinity,c=Infinity,d=Infinity,e=-Infinity,f=-Infinity,g=-Infinity,h=0,k=a.count;h<k;h++){var l=a.getX(h),q=a.getY(h),n=a.getZ(h);l<b&&(b=l);q<c&&(c=q);n<d&&(d=n);l>e&&(e=l);q>f&&(f=q);n>g&&(g=n)}this.min.set(b,c,d);this.max.set(e,f,g);return this},setFromPoints:function(a){this.makeEmpty();for(var b=0,c=a.length;b<c;b++)this.expandByPoint(a[b]);return this},setFromCenterAndSize:function(){var a=new p;return function(b,c){c=a.copy(c).multiplyScalar(.5);this.min.copy(b).sub(c);this.max.copy(b).add(c);
+return this}}(),setFromObject:function(a){this.makeEmpty();return this.expandByObject(a)},clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.min.copy(a.min);this.max.copy(a.max);return this},makeEmpty:function(){this.min.x=this.min.y=this.min.z=Infinity;this.max.x=this.max.y=this.max.z=-Infinity;return this},isEmpty:function(){return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z},getCenter:function(a){a=a||new p;return this.isEmpty()?a.set(0,0,0):
+a.addVectors(this.min,this.max).multiplyScalar(.5)},getSize:function(a){a=a||new p;return this.isEmpty()?a.set(0,0,0):a.subVectors(this.max,this.min)},expandByPoint:function(a){this.min.min(a);this.max.max(a);return this},expandByVector:function(a){this.min.sub(a);this.max.add(a);return this},expandByScalar:function(a){this.min.addScalar(-a);this.max.addScalar(a);return this},expandByObject:function(){function a(a){var f=a.geometry;if(void 0!==f)if(f.isGeometry)for(f=f.vertices,c=0,d=f.length;c<d;c++)e.copy(f[c]),
+e.applyMatrix4(a.matrixWorld),b.expandByPoint(e);else if(f.isBufferGeometry&&(f=f.attributes.position,void 0!==f))for(c=0,d=f.count;c<d;c++)e.fromBufferAttribute(f,c).applyMatrix4(a.matrixWorld),b.expandByPoint(e)}var b,c,d,e=new p;return function(c){b=this;c.updateMatrixWorld(!0);c.traverse(a);return this}}(),containsPoint:function(a){return a.x<this.min.x||a.x>this.max.x||a.y<this.min.y||a.y>this.max.y||a.z<this.min.z||a.z>this.max.z?!1:!0},containsBox:function(a){return this.min.x<=a.min.x&&a.max.x<=
+this.max.x&&this.min.y<=a.min.y&&a.max.y<=this.max.y&&this.min.z<=a.min.z&&a.max.z<=this.max.z},getParameter:function(a,b){return(b||new p).set((a.x-this.min.x)/(this.max.x-this.min.x),(a.y-this.min.y)/(this.max.y-this.min.y),(a.z-this.min.z)/(this.max.z-this.min.z))},intersectsBox:function(a){return a.max.x<this.min.x||a.min.x>this.max.x||a.max.y<this.min.y||a.min.y>this.max.y||a.max.z<this.min.z||a.min.z>this.max.z?!1:!0},intersectsSphere:function(){var a=new p;return function(b){this.clampPoint(b.center,
+a);return a.distanceToSquared(b.center)<=b.radius*b.radius}}(),intersectsPlane:function(a){if(0<a.normal.x){var b=a.normal.x*this.min.x;var c=a.normal.x*this.max.x}else b=a.normal.x*this.max.x,c=a.normal.x*this.min.x;0<a.normal.y?(b+=a.normal.y*this.min.y,c+=a.normal.y*this.max.y):(b+=a.normal.y*this.max.y,c+=a.normal.y*this.min.y);0<a.normal.z?(b+=a.normal.z*this.min.z,c+=a.normal.z*this.max.z):(b+=a.normal.z*this.max.z,c+=a.normal.z*this.min.z);return b<=a.constant&&c>=a.constant},clampPoint:function(a,
+b){return(b||new p).copy(a).clamp(this.min,this.max)},distanceToPoint:function(){var a=new p;return function(b){return a.copy(b).clamp(this.min,this.max).sub(b).length()}}(),getBoundingSphere:function(){var a=new p;return function(b){b=b||new Da;this.getCenter(b.center);b.radius=.5*this.getSize(a).length();return b}}(),intersect:function(a){this.min.max(a.min);this.max.min(a.max);this.isEmpty()&&this.makeEmpty();return this},union:function(a){this.min.min(a.min);this.max.max(a.max);return this},applyMatrix4:function(){var a=
+[new p,new p,new p,new p,new p,new p,new p,new p];return function(b){if(this.isEmpty())return this;a[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(b);a[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(b);a[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(b);a[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(b);a[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(b);a[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(b);a[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(b);
+a[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(b);this.setFromPoints(a);return this}}(),translate:function(a){this.min.add(a);this.max.add(a);return this},equals:function(a){return a.min.equals(this.min)&&a.max.equals(this.max)}});Object.assign(Da.prototype,{set:function(a,b){this.center.copy(a);this.radius=b;return this},setFromPoints:function(){var a=new Oa;return function(b,c){var d=this.center;void 0!==c?d.copy(c):a.setFromPoints(b).getCenter(d);for(var e=c=0,f=b.length;e<f;e++)c=Math.max(c,
+d.distanceToSquared(b[e]));this.radius=Math.sqrt(c);return this}}(),clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.center.copy(a.center);this.radius=a.radius;return this},empty:function(){return 0>=this.radius},containsPoint:function(a){return a.distanceToSquared(this.center)<=this.radius*this.radius},distanceToPoint:function(a){return a.distanceTo(this.center)-this.radius},intersectsSphere:function(a){var b=this.radius+a.radius;return a.center.distanceToSquared(this.center)<=
+b*b},intersectsBox:function(a){return a.intersectsSphere(this)},intersectsPlane:function(a){return Math.abs(a.distanceToPoint(this.center))<=this.radius},clampPoint:function(a,b){var c=this.center.distanceToSquared(a);b=b||new p;b.copy(a);c>this.radius*this.radius&&(b.sub(this.center).normalize(),b.multiplyScalar(this.radius).add(this.center));return b},getBoundingBox:function(a){a=a||new Oa;a.set(this.center,this.center);a.expandByScalar(this.radius);return a},applyMatrix4:function(a){this.center.applyMatrix4(a);
+this.radius*=a.getMaxScaleOnAxis();return this},translate:function(a){this.center.add(a);return this},equals:function(a){return a.center.equals(this.center)&&a.radius===this.radius}});Object.assign(Aa.prototype,{set:function(a,b){this.normal.copy(a);this.constant=b;return this},setComponents:function(a,b,c,d){this.normal.set(a,b,c);this.constant=d;return this},setFromNormalAndCoplanarPoint:function(a,b){this.normal.copy(a);this.constant=-b.dot(this.normal);return this},setFromCoplanarPoints:function(){var a=
+new p,b=new p;return function(c,d,e){d=a.subVectors(e,d).cross(b.subVectors(c,d)).normalize();this.setFromNormalAndCoplanarPoint(d,c);return this}}(),clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.normal.copy(a.normal);this.constant=a.constant;return this},normalize:function(){var a=1/this.normal.length();this.normal.multiplyScalar(a);this.constant*=a;return this},negate:function(){this.constant*=-1;this.normal.negate();return this},distanceToPoint:function(a){return this.normal.dot(a)+
+this.constant},distanceToSphere:function(a){return this.distanceToPoint(a.center)-a.radius},projectPoint:function(a,b){return(b||new p).copy(this.normal).multiplyScalar(-this.distanceToPoint(a)).add(a)},intersectLine:function(){var a=new p;return function(b,c){c=c||new p;var d=b.delta(a),e=this.normal.dot(d);if(0===e){if(0===this.distanceToPoint(b.start))return c.copy(b.start)}else if(e=-(b.start.dot(this.normal)+this.constant)/e,!(0>e||1<e))return c.copy(d).multiplyScalar(e).add(b.start)}}(),intersectsLine:function(a){var b=
+this.distanceToPoint(a.start);a=this.distanceToPoint(a.end);return 0>b&&0<a||0>a&&0<b},intersectsBox:function(a){return a.intersectsPlane(this)},intersectsSphere:function(a){return a.intersectsPlane(this)},coplanarPoint:function(a){return(a||new p).copy(this.normal).multiplyScalar(-this.constant)},applyMatrix4:function(){var a=new p,b=new ra;return function(c,d){d=d||b.getNormalMatrix(c);c=this.coplanarPoint(a).applyMatrix4(c);d=this.normal.applyMatrix3(d).normalize();this.constant=-c.dot(d);return this}}(),
+translate:function(a){this.constant-=a.dot(this.normal);return this},equals:function(a){return a.normal.equals(this.normal)&&a.constant===this.constant}});Object.assign(ld.prototype,{set:function(a,b,c,d,e,f){var g=this.planes;g[0].copy(a);g[1].copy(b);g[2].copy(c);g[3].copy(d);g[4].copy(e);g[5].copy(f);return this},clone:function(){return(new this.constructor).copy(this)},copy:function(a){for(var b=this.planes,c=0;6>c;c++)b[c].copy(a.planes[c]);return this},setFromMatrix:function(a){var b=this.planes,
+c=a.elements;a=c[0];var d=c[1],e=c[2],f=c[3],g=c[4],h=c[5],k=c[6],l=c[7],q=c[8],n=c[9],m=c[10],r=c[11],p=c[12],v=c[13],w=c[14],c=c[15];b[0].setComponents(f-a,l-g,r-q,c-p).normalize();b[1].setComponents(f+a,l+g,r+q,c+p).normalize();b[2].setComponents(f+d,l+h,r+n,c+v).normalize();b[3].setComponents(f-d,l-h,r-n,c-v).normalize();b[4].setComponents(f-e,l-k,r-m,c-w).normalize();b[5].setComponents(f+e,l+k,r+m,c+w).normalize();return this},intersectsObject:function(){var a=new Da;return function(b){var c=
+b.geometry;null===c.boundingSphere&&c.computeBoundingSphere();a.copy(c.boundingSphere).applyMatrix4(b.matrixWorld);return this.intersectsSphere(a)}}(),intersectsSprite:function(){var a=new Da;return function(b){a.center.set(0,0,0);a.radius=.7071067811865476;a.applyMatrix4(b.matrixWorld);return this.intersectsSphere(a)}}(),intersectsSphere:function(a){var b=this.planes,c=a.center;a=-a.radius;for(var d=0;6>d;d++)if(b[d].distanceToPoint(c)<a)return!1;return!0},intersectsBox:function(){var a=new p,b=
+new p;return function(c){for(var d=this.planes,e=0;6>e;e++){var f=d[e];a.x=0<f.normal.x?c.min.x:c.max.x;b.x=0<f.normal.x?c.max.x:c.min.x;a.y=0<f.normal.y?c.min.y:c.max.y;b.y=0<f.normal.y?c.max.y:c.min.y;a.z=0<f.normal.z?c.min.z:c.max.z;b.z=0<f.normal.z?c.max.z:c.min.z;var g=f.distanceToPoint(a),f=f.distanceToPoint(b);if(0>g&&0>f)return!1}return!0}}(),containsPoint:function(a){for(var b=this.planes,c=0;6>c;c++)if(0>b[c].distanceToPoint(a))return!1;return!0}});Ya.RotationOrders="XYZ YZX ZXY XZY YXZ ZYX".split(" ");
+Ya.DefaultOrder="XYZ";Object.defineProperties(Ya.prototype,{x:{get:function(){return this._x},set:function(a){this._x=a;this.onChangeCallback()}},y:{get:function(){return this._y},set:function(a){this._y=a;this.onChangeCallback()}},z:{get:function(){return this._z},set:function(a){this._z=a;this.onChangeCallback()}},order:{get:function(){return this._order},set:function(a){this._order=a;this.onChangeCallback()}}});Object.assign(Ya.prototype,{isEuler:!0,set:function(a,b,c,d){this._x=a;this._y=b;this._z=
+c;this._order=d||this._order;this.onChangeCallback();return this},clone:function(){return new this.constructor(this._x,this._y,this._z,this._order)},copy:function(a){this._x=a._x;this._y=a._y;this._z=a._z;this._order=a._order;this.onChangeCallback();return this},setFromRotationMatrix:function(a,b,c){var d=R.clamp,e=a.elements;a=e[0];var f=e[4],g=e[8],h=e[1],k=e[5],l=e[9],q=e[2],n=e[6],e=e[10];b=b||this._order;"XYZ"===b?(this._y=Math.asin(d(g,-1,1)),.99999>Math.abs(g)?(this._x=Math.atan2(-l,e),this._z=
+Math.atan2(-f,a)):(this._x=Math.atan2(n,k),this._z=0)):"YXZ"===b?(this._x=Math.asin(-d(l,-1,1)),.99999>Math.abs(l)?(this._y=Math.atan2(g,e),this._z=Math.atan2(h,k)):(this._y=Math.atan2(-q,a),this._z=0)):"ZXY"===b?(this._x=Math.asin(d(n,-1,1)),.99999>Math.abs(n)?(this._y=Math.atan2(-q,e),this._z=Math.atan2(-f,k)):(this._y=0,this._z=Math.atan2(h,a))):"ZYX"===b?(this._y=Math.asin(-d(q,-1,1)),.99999>Math.abs(q)?(this._x=Math.atan2(n,e),this._z=Math.atan2(h,a)):(this._x=0,this._z=Math.atan2(-f,k))):"YZX"===
+b?(this._z=Math.asin(d(h,-1,1)),.99999>Math.abs(h)?(this._x=Math.atan2(-l,k),this._y=Math.atan2(-q,a)):(this._x=0,this._y=Math.atan2(g,e))):"XZY"===b?(this._z=Math.asin(-d(f,-1,1)),.99999>Math.abs(f)?(this._x=Math.atan2(n,k),this._y=Math.atan2(g,a)):(this._x=Math.atan2(-l,e),this._y=0)):console.warn("THREE.Euler: .setFromRotationMatrix() given unsupported order: "+b);this._order=b;if(!1!==c)this.onChangeCallback();return this},setFromQuaternion:function(){var a=new K;return function(b,c,d){a.makeRotationFromQuaternion(b);
+return this.setFromRotationMatrix(a,c,d)}}(),setFromVector3:function(a,b){return this.set(a.x,a.y,a.z,b||this._order)},reorder:function(){var a=new Z;return function(b){a.setFromEuler(this);return this.setFromQuaternion(a,b)}}(),equals:function(a){return a._x===this._x&&a._y===this._y&&a._z===this._z&&a._order===this._order},fromArray:function(a){this._x=a[0];this._y=a[1];this._z=a[2];void 0!==a[3]&&(this._order=a[3]);this.onChangeCallback();return this},toArray:function(a,b){void 0===a&&(a=[]);void 0===
+b&&(b=0);a[b]=this._x;a[b+1]=this._y;a[b+2]=this._z;a[b+3]=this._order;return a},toVector3:function(a){return a?a.set(this._x,this._y,this._z):new p(this._x,this._y,this._z)},onChange:function(a){this.onChangeCallback=a;return this},onChangeCallback:function(){}});Object.assign(Pd.prototype,{set:function(a){this.mask=1<<a|0},enable:function(a){this.mask=this.mask|1<<a|0},toggle:function(a){this.mask^=1<<a|0},disable:function(a){this.mask&=~(1<<a|0)},test:function(a){return 0!==(this.mask&a.mask)}});
+var Nf=0;A.DefaultUp=new p(0,1,0);A.DefaultMatrixAutoUpdate=!0;Object.assign(A.prototype,ja.prototype,{isObject3D:!0,onBeforeRender:function(){},onAfterRender:function(){},applyMatrix:function(a){this.matrix.multiplyMatrices(a,this.matrix);this.matrix.decompose(this.position,this.quaternion,this.scale)},applyQuaternion:function(a){this.quaternion.premultiply(a);return this},setRotationFromAxisAngle:function(a,b){this.quaternion.setFromAxisAngle(a,b)},setRotationFromEuler:function(a){this.quaternion.setFromEuler(a,
+!0)},setRotationFromMatrix:function(a){this.quaternion.setFromRotationMatrix(a)},setRotationFromQuaternion:function(a){this.quaternion.copy(a)},rotateOnAxis:function(){var a=new Z;return function(b,c){a.setFromAxisAngle(b,c);this.quaternion.multiply(a);return this}}(),rotateOnWorldAxis:function(){var a=new Z;return function(b,c){a.setFromAxisAngle(b,c);this.quaternion.premultiply(a);return this}}(),rotateX:function(){var a=new p(1,0,0);return function(b){return this.rotateOnAxis(a,b)}}(),rotateY:function(){var a=
+new p(0,1,0);return function(b){return this.rotateOnAxis(a,b)}}(),rotateZ:function(){var a=new p(0,0,1);return function(b){return this.rotateOnAxis(a,b)}}(),translateOnAxis:function(){var a=new p;return function(b,c){a.copy(b).applyQuaternion(this.quaternion);this.position.add(a.multiplyScalar(c));return this}}(),translateX:function(){var a=new p(1,0,0);return function(b){return this.translateOnAxis(a,b)}}(),translateY:function(){var a=new p(0,1,0);return function(b){return this.translateOnAxis(a,
+b)}}(),translateZ:function(){var a=new p(0,0,1);return function(b){return this.translateOnAxis(a,b)}}(),localToWorld:function(a){return a.applyMatrix4(this.matrixWorld)},worldToLocal:function(){var a=new K;return function(b){return b.applyMatrix4(a.getInverse(this.matrixWorld))}}(),lookAt:function(){var a=new K,b=new p;return function(c,d,e){c.isVector3?b.copy(c):b.set(c,d,e);this.isCamera?a.lookAt(this.position,b,this.up):a.lookAt(b,this.position,this.up);this.quaternion.setFromRotationMatrix(a)}}(),
+add:function(a){if(1<arguments.length){for(var b=0;b<arguments.length;b++)this.add(arguments[b]);return this}if(a===this)return console.error("THREE.Object3D.add: object can't be added as a child of itself.",a),this;a&&a.isObject3D?(null!==a.parent&&a.parent.remove(a),a.parent=this,a.dispatchEvent({type:"added"}),this.children.push(a)):console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",a);return this},remove:function(a){if(1<arguments.length){for(var b=0;b<arguments.length;b++)this.remove(arguments[b]);
+return this}b=this.children.indexOf(a);-1!==b&&(a.parent=null,a.dispatchEvent({type:"removed"}),this.children.splice(b,1));return this},getObjectById:function(a){return this.getObjectByProperty("id",a)},getObjectByName:function(a){return this.getObjectByProperty("name",a)},getObjectByProperty:function(a,b){if(this[a]===b)return this;for(var c=0,d=this.children.length;c<d;c++){var e=this.children[c].getObjectByProperty(a,b);if(void 0!==e)return e}},getWorldPosition:function(a){a=a||new p;this.updateMatrixWorld(!0);
+return a.setFromMatrixPosition(this.matrixWorld)},getWorldQuaternion:function(){var a=new p,b=new p;return function(c){c=c||new Z;this.updateMatrixWorld(!0);this.matrixWorld.decompose(a,c,b);return c}}(),getWorldRotation:function(){var a=new Z;return function(b){b=b||new Ya;this.getWorldQuaternion(a);return b.setFromQuaternion(a,this.rotation.order,!1)}}(),getWorldScale:function(){var a=new p,b=new Z;return function(c){c=c||new p;this.updateMatrixWorld(!0);this.matrixWorld.decompose(a,b,c);return c}}(),
+getWorldDirection:function(){var a=new Z;return function(b){b=b||new p;this.getWorldQuaternion(a);return b.set(0,0,1).applyQuaternion(a)}}(),raycast:function(){},traverse:function(a){a(this);for(var b=this.children,c=0,d=b.length;c<d;c++)b[c].traverse(a)},traverseVisible:function(a){if(!1!==this.visible){a(this);for(var b=this.children,c=0,d=b.length;c<d;c++)b[c].traverseVisible(a)}},traverseAncestors:function(a){var b=this.parent;null!==b&&(a(b),b.traverseAncestors(a))},updateMatrix:function(){this.matrix.compose(this.position,
+this.quaternion,this.scale);this.matrixWorldNeedsUpdate=!0},updateMatrixWorld:function(a){this.matrixAutoUpdate&&this.updateMatrix();if(this.matrixWorldNeedsUpdate||a)null===this.parent?this.matrixWorld.copy(this.matrix):this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix),this.matrixWorldNeedsUpdate=!1,a=!0;for(var b=this.children,c=0,d=b.length;c<d;c++)b[c].updateMatrixWorld(a)},toJSON:function(a){function b(b,c){void 0===b[c.uuid]&&(b[c.uuid]=c.toJSON(a));return c.uuid}function c(a){var b=
+[],c;for(c in a){var d=a[c];delete d.metadata;b.push(d)}return b}var d=void 0===a||"string"===typeof a,e={};d&&(a={geometries:{},materials:{},textures:{},images:{}},e.metadata={version:4.5,type:"Object",generator:"Object3D.toJSON"});var f={};f.uuid=this.uuid;f.type=this.type;""!==this.name&&(f.name=this.name);!0===this.castShadow&&(f.castShadow=!0);!0===this.receiveShadow&&(f.receiveShadow=!0);!1===this.visible&&(f.visible=!1);"{}"!==JSON.stringify(this.userData)&&(f.userData=this.userData);f.matrix=
+this.matrix.toArray();void 0!==this.geometry&&(f.geometry=b(a.geometries,this.geometry));if(void 0!==this.material)if(Array.isArray(this.material)){for(var g=[],h=0,k=this.material.length;h<k;h++)g.push(b(a.materials,this.material[h]));f.material=g}else f.material=b(a.materials,this.material);if(0<this.children.length)for(f.children=[],h=0;h<this.children.length;h++)f.children.push(this.children[h].toJSON(a).object);d&&(d=c(a.geometries),g=c(a.materials),h=c(a.textures),k=c(a.images),0<d.length&&
+(e.geometries=d),0<g.length&&(e.materials=g),0<h.length&&(e.textures=h),0<k.length&&(e.images=k));e.object=f;return e},clone:function(a){return(new this.constructor).copy(this,a)},copy:function(a,b){void 0===b&&(b=!0);this.name=a.name;this.up.copy(a.up);this.position.copy(a.position);this.quaternion.copy(a.quaternion);this.scale.copy(a.scale);this.matrix.copy(a.matrix);this.matrixWorld.copy(a.matrixWorld);this.matrixAutoUpdate=a.matrixAutoUpdate;this.matrixWorldNeedsUpdate=a.matrixWorldNeedsUpdate;
+this.layers.mask=a.layers.mask;this.visible=a.visible;this.castShadow=a.castShadow;this.receiveShadow=a.receiveShadow;this.frustumCulled=a.frustumCulled;this.renderOrder=a.renderOrder;this.userData=JSON.parse(JSON.stringify(a.userData));if(!0===b)for(b=0;b<a.children.length;b++)this.add(a.children[b].clone());return this}});La.prototype=Object.assign(Object.create(A.prototype),{constructor:La,isCamera:!0,copy:function(a,b){A.prototype.copy.call(this,a,b);this.matrixWorldInverse.copy(a.matrixWorldInverse);
+this.projectionMatrix.copy(a.projectionMatrix);return this},getWorldDirection:function(){var a=new Z;return function(b){b=b||new p;this.getWorldQuaternion(a);return b.set(0,0,-1).applyQuaternion(a)}}(),updateMatrixWorld:function(a){A.prototype.updateMatrixWorld.call(this,a);this.matrixWorldInverse.getInverse(this.matrixWorld)},clone:function(){return(new this.constructor).copy(this)}});Kb.prototype=Object.assign(Object.create(La.prototype),{constructor:Kb,isOrthographicCamera:!0,copy:function(a,b){La.prototype.copy.call(this,
+a,b);this.left=a.left;this.right=a.right;this.top=a.top;this.bottom=a.bottom;this.near=a.near;this.far=a.far;this.zoom=a.zoom;this.view=null===a.view?null:Object.assign({},a.view);return this},setViewOffset:function(a,b,c,d,e,f){null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1});this.view.enabled=!0;this.view.fullWidth=a;this.view.fullHeight=b;this.view.offsetX=c;this.view.offsetY=d;this.view.width=e;this.view.height=f;this.updateProjectionMatrix()},
+clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1);this.updateProjectionMatrix()},updateProjectionMatrix:function(){var a=(this.right-this.left)/(2*this.zoom),b=(this.top-this.bottom)/(2*this.zoom),c=(this.right+this.left)/2,d=(this.top+this.bottom)/2,e=c-a,c=c+a,a=d+b,b=d-b;if(null!==this.view&&this.view.enabled)var c=this.zoom/(this.view.width/this.view.fullWidth),b=this.zoom/(this.view.height/this.view.fullHeight),f=(this.right-this.left)/this.view.width,d=(this.top-this.bottom)/
+this.view.height,e=e+this.view.offsetX/c*f,c=e+this.view.width/c*f,a=a-this.view.offsetY/b*d,b=a-this.view.height/b*d;this.projectionMatrix.makeOrthographic(e,c,a,b,this.near,this.far)},toJSON:function(a){a=A.prototype.toJSON.call(this,a);a.object.zoom=this.zoom;a.object.left=this.left;a.object.right=this.right;a.object.top=this.top;a.object.bottom=this.bottom;a.object.near=this.near;a.object.far=this.far;null!==this.view&&(a.object.view=Object.assign({},this.view));return a}});Object.assign(Pa.prototype,
+{clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.a=a.a;this.b=a.b;this.c=a.c;this.normal.copy(a.normal);this.color.copy(a.color);this.materialIndex=a.materialIndex;for(var b=0,c=a.vertexNormals.length;b<c;b++)this.vertexNormals[b]=a.vertexNormals[b].clone();b=0;for(c=a.vertexColors.length;b<c;b++)this.vertexColors[b]=a.vertexColors[b].clone();return this}});var Of=0;Object.assign(N.prototype,ja.prototype,{isGeometry:!0,applyMatrix:function(a){for(var b=(new ra).getNormalMatrix(a),
+c=0,d=this.vertices.length;c<d;c++)this.vertices[c].applyMatrix4(a);c=0;for(d=this.faces.length;c<d;c++){a=this.faces[c];a.normal.applyMatrix3(b).normalize();for(var e=0,f=a.vertexNormals.length;e<f;e++)a.vertexNormals[e].applyMatrix3(b).normalize()}null!==this.boundingBox&&this.computeBoundingBox();null!==this.boundingSphere&&this.computeBoundingSphere();this.normalsNeedUpdate=this.verticesNeedUpdate=!0;return this},rotateX:function(){var a=new K;return function(b){a.makeRotationX(b);this.applyMatrix(a);
+return this}}(),rotateY:function(){var a=new K;return function(b){a.makeRotationY(b);this.applyMatrix(a);return this}}(),rotateZ:function(){var a=new K;return function(b){a.makeRotationZ(b);this.applyMatrix(a);return this}}(),translate:function(){var a=new K;return function(b,c,d){a.makeTranslation(b,c,d);this.applyMatrix(a);return this}}(),scale:function(){var a=new K;return function(b,c,d){a.makeScale(b,c,d);this.applyMatrix(a);return this}}(),lookAt:function(){var a=new A;return function(b){a.lookAt(b);
+a.updateMatrix();this.applyMatrix(a.matrix)}}(),fromBufferGeometry:function(a){function b(a,b,d,e){var f=void 0!==g?[q[a].clone(),q[b].clone(),q[d].clone()]:[],t=void 0!==h?[c.colors[a].clone(),c.colors[b].clone(),c.colors[d].clone()]:[];e=new Pa(a,b,d,f,t,e);c.faces.push(e);void 0!==k&&c.faceVertexUvs[0].push([n[a].clone(),n[b].clone(),n[d].clone()]);void 0!==l&&c.faceVertexUvs[1].push([m[a].clone(),m[b].clone(),m[d].clone()])}var c=this,d=null!==a.index?a.index.array:void 0,e=a.attributes,f=e.position.array,
+g=void 0!==e.normal?e.normal.array:void 0,h=void 0!==e.color?e.color.array:void 0,k=void 0!==e.uv?e.uv.array:void 0,l=void 0!==e.uv2?e.uv2.array:void 0;void 0!==l&&(this.faceVertexUvs[1]=[]);for(var q=[],n=[],m=[],r=e=0;e<f.length;e+=3,r+=2)c.vertices.push(new p(f[e],f[e+1],f[e+2])),void 0!==g&&q.push(new p(g[e],g[e+1],g[e+2])),void 0!==h&&c.colors.push(new H(h[e],h[e+1],h[e+2])),void 0!==k&&n.push(new C(k[r],k[r+1])),void 0!==l&&m.push(new C(l[r],l[r+1]));var u=a.groups;if(0<u.length)for(e=0;e<u.length;e++)for(var f=
+u[e],v=f.start,w=f.count,r=v,v=v+w;r<v;r+=3)void 0!==d?b(d[r],d[r+1],d[r+2],f.materialIndex):b(r,r+1,r+2,f.materialIndex);else if(void 0!==d)for(e=0;e<d.length;e+=3)b(d[e],d[e+1],d[e+2]);else for(e=0;e<f.length/3;e+=3)b(e,e+1,e+2);this.computeFaceNormals();null!==a.boundingBox&&(this.boundingBox=a.boundingBox.clone());null!==a.boundingSphere&&(this.boundingSphere=a.boundingSphere.clone());return this},center:function(){this.computeBoundingBox();var a=this.boundingBox.getCenter().negate();this.translate(a.x,
+a.y,a.z);return a},normalize:function(){this.computeBoundingSphere();var a=this.boundingSphere.center,b=this.boundingSphere.radius,b=0===b?1:1/b,c=new K;c.set(b,0,0,-b*a.x,0,b,0,-b*a.y,0,0,b,-b*a.z,0,0,0,1);this.applyMatrix(c);return this},computeFaceNormals:function(){for(var a=new p,b=new p,c=0,d=this.faces.length;c<d;c++){var e=this.faces[c],f=this.vertices[e.a],g=this.vertices[e.b];a.subVectors(this.vertices[e.c],g);b.subVectors(f,g);a.cross(b);a.normalize();e.normal.copy(a)}},computeVertexNormals:function(a){void 0===
+a&&(a=!0);var b;var c=Array(this.vertices.length);var d=0;for(b=this.vertices.length;d<b;d++)c[d]=new p;if(a){var e=new p,f=new p;a=0;for(d=this.faces.length;a<d;a++){b=this.faces[a];var g=this.vertices[b.a];var h=this.vertices[b.b];var k=this.vertices[b.c];e.subVectors(k,h);f.subVectors(g,h);e.cross(f);c[b.a].add(e);c[b.b].add(e);c[b.c].add(e)}}else for(this.computeFaceNormals(),a=0,d=this.faces.length;a<d;a++)b=this.faces[a],c[b.a].add(b.normal),c[b.b].add(b.normal),c[b.c].add(b.normal);d=0;for(b=
+this.vertices.length;d<b;d++)c[d].normalize();a=0;for(d=this.faces.length;a<d;a++)b=this.faces[a],g=b.vertexNormals,3===g.length?(g[0].copy(c[b.a]),g[1].copy(c[b.b]),g[2].copy(c[b.c])):(g[0]=c[b.a].clone(),g[1]=c[b.b].clone(),g[2]=c[b.c].clone());0<this.faces.length&&(this.normalsNeedUpdate=!0)},computeFlatVertexNormals:function(){var a;this.computeFaceNormals();var b=0;for(a=this.faces.length;b<a;b++){var c=this.faces[b];var d=c.vertexNormals;3===d.length?(d[0].copy(c.normal),d[1].copy(c.normal),
+d[2].copy(c.normal)):(d[0]=c.normal.clone(),d[1]=c.normal.clone(),d[2]=c.normal.clone())}0<this.faces.length&&(this.normalsNeedUpdate=!0)},computeMorphNormals:function(){var a,b;var c=0;for(b=this.faces.length;c<b;c++){var d=this.faces[c];d.__originalFaceNormal?d.__originalFaceNormal.copy(d.normal):d.__originalFaceNormal=d.normal.clone();d.__originalVertexNormals||(d.__originalVertexNormals=[]);var e=0;for(a=d.vertexNormals.length;e<a;e++)d.__originalVertexNormals[e]?d.__originalVertexNormals[e].copy(d.vertexNormals[e]):
+d.__originalVertexNormals[e]=d.vertexNormals[e].clone()}var f=new N;f.faces=this.faces;e=0;for(a=this.morphTargets.length;e<a;e++){if(!this.morphNormals[e]){this.morphNormals[e]={};this.morphNormals[e].faceNormals=[];this.morphNormals[e].vertexNormals=[];d=this.morphNormals[e].faceNormals;var g=this.morphNormals[e].vertexNormals;c=0;for(b=this.faces.length;c<b;c++){var h=new p;var k={a:new p,b:new p,c:new p};d.push(h);g.push(k)}}g=this.morphNormals[e];f.vertices=this.morphTargets[e].vertices;f.computeFaceNormals();
+f.computeVertexNormals();c=0;for(b=this.faces.length;c<b;c++)d=this.faces[c],h=g.faceNormals[c],k=g.vertexNormals[c],h.copy(d.normal),k.a.copy(d.vertexNormals[0]),k.b.copy(d.vertexNormals[1]),k.c.copy(d.vertexNormals[2])}c=0;for(b=this.faces.length;c<b;c++)d=this.faces[c],d.normal=d.__originalFaceNormal,d.vertexNormals=d.__originalVertexNormals},computeLineDistances:function(){for(var a=0,b=this.vertices,c=0,d=b.length;c<d;c++)0<c&&(a+=b[c].distanceTo(b[c-1])),this.lineDistances[c]=a},computeBoundingBox:function(){null===
+this.boundingBox&&(this.boundingBox=new Oa);this.boundingBox.setFromPoints(this.vertices)},computeBoundingSphere:function(){null===this.boundingSphere&&(this.boundingSphere=new Da);this.boundingSphere.setFromPoints(this.vertices)},merge:function(a,b,c){if(a&&a.isGeometry){var d,e=this.vertices.length,f=this.vertices,g=a.vertices,h=this.faces,k=a.faces,l=this.faceVertexUvs[0],q=a.faceVertexUvs[0],n=this.colors,m=a.colors;void 0===c&&(c=0);void 0!==b&&(d=(new ra).getNormalMatrix(b));a=0;for(var r=g.length;a<
+r;a++){var p=g[a].clone();void 0!==b&&p.applyMatrix4(b);f.push(p)}a=0;for(r=m.length;a<r;a++)n.push(m[a].clone());a=0;for(r=k.length;a<r;a++){var g=k[a],v=g.vertexNormals,m=g.vertexColors,n=new Pa(g.a+e,g.b+e,g.c+e);n.normal.copy(g.normal);void 0!==d&&n.normal.applyMatrix3(d).normalize();b=0;for(f=v.length;b<f;b++)p=v[b].clone(),void 0!==d&&p.applyMatrix3(d).normalize(),n.vertexNormals.push(p);n.color.copy(g.color);b=0;for(f=m.length;b<f;b++)p=m[b],n.vertexColors.push(p.clone());n.materialIndex=g.materialIndex+
+c;h.push(n)}a=0;for(r=q.length;a<r;a++)if(c=q[a],d=[],void 0!==c){b=0;for(f=c.length;b<f;b++)d.push(c[b].clone());l.push(d)}}else console.error("THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.",a)},mergeMesh:function(a){a&&a.isMesh?(a.matrixAutoUpdate&&a.updateMatrix(),this.merge(a.geometry,a.matrix)):console.error("THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.",a)},mergeVertices:function(){var a={},b=[],c=[],d=Math.pow(10,4),e;var f=0;for(e=this.vertices.length;f<
+e;f++){var g=this.vertices[f];g=Math.round(g.x*d)+"_"+Math.round(g.y*d)+"_"+Math.round(g.z*d);void 0===a[g]?(a[g]=f,b.push(this.vertices[f]),c[f]=b.length-1):c[f]=c[a[g]]}a=[];f=0;for(e=this.faces.length;f<e;f++)for(d=this.faces[f],d.a=c[d.a],d.b=c[d.b],d.c=c[d.c],d=[d.a,d.b,d.c],g=0;3>g;g++)if(d[g]===d[(g+1)%3]){a.push(f);break}for(f=a.length-1;0<=f;f--)for(d=a[f],this.faces.splice(d,1),c=0,e=this.faceVertexUvs.length;c<e;c++)this.faceVertexUvs[c].splice(d,1);f=this.vertices.length-b.length;this.vertices=
+b;return f},setFromPoints:function(a){this.vertices=[];for(var b=0,c=a.length;b<c;b++){var d=a[b];this.vertices.push(new p(d.x,d.y,d.z||0))}return this},sortFacesByMaterialIndex:function(){for(var a=this.faces,b=a.length,c=0;c<b;c++)a[c]._id=c;a.sort(function(a,b){return a.materialIndex-b.materialIndex});var d=this.faceVertexUvs[0],e=this.faceVertexUvs[1],f,g;d&&d.length===b&&(f=[]);e&&e.length===b&&(g=[]);for(c=0;c<b;c++){var h=a[c]._id;f&&f.push(d[h]);g&&g.push(e[h])}f&&(this.faceVertexUvs[0]=f);
+g&&(this.faceVertexUvs[1]=g)},toJSON:function(){function a(a,b,c){return c?a|1<<b:a&~(1<<b)}function b(a){var b=a.x.toString()+a.y.toString()+a.z.toString();if(void 0!==l[b])return l[b];l[b]=k.length/3;k.push(a.x,a.y,a.z);return l[b]}function c(a){var b=a.r.toString()+a.g.toString()+a.b.toString();if(void 0!==n[b])return n[b];n[b]=q.length;q.push(a.getHex());return n[b]}function d(a){var b=a.x.toString()+a.y.toString();if(void 0!==p[b])return p[b];p[b]=m.length/2;m.push(a.x,a.y);return p[b]}var e=
+{metadata:{version:4.5,type:"Geometry",generator:"Geometry.toJSON"}};e.uuid=this.uuid;e.type=this.type;""!==this.name&&(e.name=this.name);if(void 0!==this.parameters){var f=this.parameters,g;for(g in f)void 0!==f[g]&&(e[g]=f[g]);return e}f=[];for(g=0;g<this.vertices.length;g++){var h=this.vertices[g];f.push(h.x,h.y,h.z)}var h=[],k=[],l={},q=[],n={},m=[],p={};for(g=0;g<this.faces.length;g++){var u=this.faces[g],v=void 0!==this.faceVertexUvs[0][g],w=0<u.normal.length(),x=0<u.vertexNormals.length,z=
+1!==u.color.r||1!==u.color.g||1!==u.color.b,I=0<u.vertexColors.length,B=0,B=a(B,0,0),B=a(B,1,!0),B=a(B,2,!1),B=a(B,3,v),B=a(B,4,w),B=a(B,5,x),B=a(B,6,z),B=a(B,7,I);h.push(B);h.push(u.a,u.b,u.c);h.push(u.materialIndex);v&&(v=this.faceVertexUvs[0][g],h.push(d(v[0]),d(v[1]),d(v[2])));w&&h.push(b(u.normal));x&&(w=u.vertexNormals,h.push(b(w[0]),b(w[1]),b(w[2])));z&&h.push(c(u.color));I&&(u=u.vertexColors,h.push(c(u[0]),c(u[1]),c(u[2])))}e.data={};e.data.vertices=f;e.data.normals=k;0<q.length&&(e.data.colors=
+q);0<m.length&&(e.data.uvs=[m]);e.data.faces=h;return e},clone:function(){return(new N).copy(this)},copy:function(a){var b,c,d;this.vertices=[];this.colors=[];this.faces=[];this.faceVertexUvs=[[]];this.morphTargets=[];this.morphNormals=[];this.skinWeights=[];this.skinIndices=[];this.lineDistances=[];this.boundingSphere=this.boundingBox=null;this.name=a.name;var e=a.vertices;var f=0;for(b=e.length;f<b;f++)this.vertices.push(e[f].clone());e=a.colors;f=0;for(b=e.length;f<b;f++)this.colors.push(e[f].clone());
+e=a.faces;f=0;for(b=e.length;f<b;f++)this.faces.push(e[f].clone());f=0;for(b=a.faceVertexUvs.length;f<b;f++){var g=a.faceVertexUvs[f];void 0===this.faceVertexUvs[f]&&(this.faceVertexUvs[f]=[]);e=0;for(c=g.length;e<c;e++){var h=g[e],k=[];var l=0;for(d=h.length;l<d;l++)k.push(h[l].clone());this.faceVertexUvs[f].push(k)}}l=a.morphTargets;f=0;for(b=l.length;f<b;f++){d={};d.name=l[f].name;if(void 0!==l[f].vertices)for(d.vertices=[],e=0,c=l[f].vertices.length;e<c;e++)d.vertices.push(l[f].vertices[e].clone());
+if(void 0!==l[f].normals)for(d.normals=[],e=0,c=l[f].normals.length;e<c;e++)d.normals.push(l[f].normals[e].clone());this.morphTargets.push(d)}l=a.morphNormals;f=0;for(b=l.length;f<b;f++){d={};if(void 0!==l[f].vertexNormals)for(d.vertexNormals=[],e=0,c=l[f].vertexNormals.length;e<c;e++)g=l[f].vertexNormals[e],h={},h.a=g.a.clone(),h.b=g.b.clone(),h.c=g.c.clone(),d.vertexNormals.push(h);if(void 0!==l[f].faceNormals)for(d.faceNormals=[],e=0,c=l[f].faceNormals.length;e<c;e++)d.faceNormals.push(l[f].faceNormals[e].clone());
+this.morphNormals.push(d)}e=a.skinWeights;f=0;for(b=e.length;f<b;f++)this.skinWeights.push(e[f].clone());e=a.skinIndices;f=0;for(b=e.length;f<b;f++)this.skinIndices.push(e[f].clone());e=a.lineDistances;f=0;for(b=e.length;f<b;f++)this.lineDistances.push(e[f]);f=a.boundingBox;null!==f&&(this.boundingBox=f.clone());f=a.boundingSphere;null!==f&&(this.boundingSphere=f.clone());this.elementsNeedUpdate=a.elementsNeedUpdate;this.verticesNeedUpdate=a.verticesNeedUpdate;this.uvsNeedUpdate=a.uvsNeedUpdate;this.normalsNeedUpdate=
+a.normalsNeedUpdate;this.colorsNeedUpdate=a.colorsNeedUpdate;this.lineDistancesNeedUpdate=a.lineDistancesNeedUpdate;this.groupsNeedUpdate=a.groupsNeedUpdate;return this},dispose:function(){this.dispatchEvent({type:"dispose"})}});Object.defineProperty(P.prototype,"needsUpdate",{set:function(a){!0===a&&this.version++}});Object.assign(P.prototype,{isBufferAttribute:!0,setArray:function(a){if(Array.isArray(a))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.count=void 0!==
+a?a.length/this.itemSize:0;this.array=a},setDynamic:function(a){this.dynamic=a;return this},copy:function(a){this.array=new a.array.constructor(a.array);this.itemSize=a.itemSize;this.count=a.count;this.normalized=a.normalized;this.dynamic=a.dynamic;return this},copyAt:function(a,b,c){a*=this.itemSize;c*=b.itemSize;for(var d=0,e=this.itemSize;d<e;d++)this.array[a+d]=b.array[c+d];return this},copyArray:function(a){this.array.set(a);return this},copyColorsArray:function(a){for(var b=this.array,c=0,d=
+0,e=a.length;d<e;d++){var f=a[d];void 0===f&&(console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",d),f=new H);b[c++]=f.r;b[c++]=f.g;b[c++]=f.b}return this},copyIndicesArray:function(a){for(var b=this.array,c=0,d=0,e=a.length;d<e;d++){var f=a[d];b[c++]=f.a;b[c++]=f.b;b[c++]=f.c}return this},copyVector2sArray:function(a){for(var b=this.array,c=0,d=0,e=a.length;d<e;d++){var f=a[d];void 0===f&&(console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",d),f=new C);
+b[c++]=f.x;b[c++]=f.y}return this},copyVector3sArray:function(a){for(var b=this.array,c=0,d=0,e=a.length;d<e;d++){var f=a[d];void 0===f&&(console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",d),f=new p);b[c++]=f.x;b[c++]=f.y;b[c++]=f.z}return this},copyVector4sArray:function(a){for(var b=this.array,c=0,d=0,e=a.length;d<e;d++){var f=a[d];void 0===f&&(console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",d),f=new da);b[c++]=f.x;b[c++]=f.y;b[c++]=f.z;
+b[c++]=f.w}return this},set:function(a,b){void 0===b&&(b=0);this.array.set(a,b);return this},getX:function(a){return this.array[a*this.itemSize]},setX:function(a,b){this.array[a*this.itemSize]=b;return this},getY:function(a){return this.array[a*this.itemSize+1]},setY:function(a,b){this.array[a*this.itemSize+1]=b;return this},getZ:function(a){return this.array[a*this.itemSize+2]},setZ:function(a,b){this.array[a*this.itemSize+2]=b;return this},getW:function(a){return this.array[a*this.itemSize+3]},
+setW:function(a,b){this.array[a*this.itemSize+3]=b;return this},setXY:function(a,b,c){a*=this.itemSize;this.array[a+0]=b;this.array[a+1]=c;return this},setXYZ:function(a,b,c,d){a*=this.itemSize;this.array[a+0]=b;this.array[a+1]=c;this.array[a+2]=d;return this},setXYZW:function(a,b,c,d,e){a*=this.itemSize;this.array[a+0]=b;this.array[a+1]=c;this.array[a+2]=d;this.array[a+3]=e;return this},onUpload:function(a){this.onUploadCallback=a;return this},clone:function(){return(new this.constructor(this.array,
+this.itemSize)).copy(this)}});uc.prototype=Object.create(P.prototype);uc.prototype.constructor=uc;vc.prototype=Object.create(P.prototype);vc.prototype.constructor=vc;wc.prototype=Object.create(P.prototype);wc.prototype.constructor=wc;xc.prototype=Object.create(P.prototype);xc.prototype.constructor=xc;hb.prototype=Object.create(P.prototype);hb.prototype.constructor=hb;yc.prototype=Object.create(P.prototype);yc.prototype.constructor=yc;ib.prototype=Object.create(P.prototype);ib.prototype.constructor=
+ib;y.prototype=Object.create(P.prototype);y.prototype.constructor=y;zc.prototype=Object.create(P.prototype);zc.prototype.constructor=zc;Object.assign(Je.prototype,{computeGroups:function(a){var b=[],c=void 0;a=a.faces;for(var d=0;d<a.length;d++){var e=a[d];if(e.materialIndex!==c){c=e.materialIndex;void 0!==f&&(f.count=3*d-f.start,b.push(f));var f={start:3*d,materialIndex:c}}}void 0!==f&&(f.count=3*d-f.start,b.push(f));this.groups=b},fromGeometry:function(a){var b=a.faces,c=a.vertices,d=a.faceVertexUvs,
+e=d[0]&&0<d[0].length,f=d[1]&&0<d[1].length,g=a.morphTargets,h=g.length;if(0<h){var k=[];for(var l=0;l<h;l++)k[l]=[];this.morphTargets.position=k}var q=a.morphNormals,n=q.length;if(0<n){var m=[];for(l=0;l<n;l++)m[l]=[];this.morphTargets.normal=m}for(var p=a.skinIndices,u=a.skinWeights,v=p.length===c.length,w=u.length===c.length,l=0;l<b.length;l++){var x=b[l];this.vertices.push(c[x.a],c[x.b],c[x.c]);var z=x.vertexNormals;3===z.length?this.normals.push(z[0],z[1],z[2]):(z=x.normal,this.normals.push(z,
+z,z));z=x.vertexColors;3===z.length?this.colors.push(z[0],z[1],z[2]):(z=x.color,this.colors.push(z,z,z));!0===e&&(z=d[0][l],void 0!==z?this.uvs.push(z[0],z[1],z[2]):(console.warn("THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ",l),this.uvs.push(new C,new C,new C)));!0===f&&(z=d[1][l],void 0!==z?this.uvs2.push(z[0],z[1],z[2]):(console.warn("THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ",l),this.uvs2.push(new C,new C,new C)));for(z=0;z<h;z++){var I=g[z].vertices;k[z].push(I[x.a],
+I[x.b],I[x.c])}for(z=0;z<n;z++)I=q[z].vertexNormals[l],m[z].push(I.a,I.b,I.c);v&&this.skinIndices.push(p[x.a],p[x.b],p[x.c]);w&&this.skinWeights.push(u[x.a],u[x.b],u[x.c])}this.computeGroups(a);this.verticesNeedUpdate=a.verticesNeedUpdate;this.normalsNeedUpdate=a.normalsNeedUpdate;this.colorsNeedUpdate=a.colorsNeedUpdate;this.uvsNeedUpdate=a.uvsNeedUpdate;this.groupsNeedUpdate=a.groupsNeedUpdate;return this}});var Pf=1;Object.assign(D.prototype,ja.prototype,{isBufferGeometry:!0,getIndex:function(){return this.index},
+setIndex:function(a){Array.isArray(a)?this.index=new (65535<Qd(a)?ib:hb)(a,1):this.index=a},addAttribute:function(a,b,c){if(b&&b.isBufferAttribute||b&&b.isInterleavedBufferAttribute)if("index"===a)console.warn("THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute."),this.setIndex(b);else return this.attributes[a]=b,this;else console.warn("THREE.BufferGeometry: .addAttribute() now expects ( name, attribute )."),this.addAttribute(a,new P(b,c))},getAttribute:function(a){return this.attributes[a]},
+removeAttribute:function(a){delete this.attributes[a];return this},addGroup:function(a,b,c){this.groups.push({start:a,count:b,materialIndex:void 0!==c?c:0})},clearGroups:function(){this.groups=[]},setDrawRange:function(a,b){this.drawRange.start=a;this.drawRange.count=b},applyMatrix:function(a){var b=this.attributes.position;void 0!==b&&(a.applyToBufferAttribute(b),b.needsUpdate=!0);b=this.attributes.normal;void 0!==b&&((new ra).getNormalMatrix(a).applyToBufferAttribute(b),b.needsUpdate=!0);null!==
+this.boundingBox&&this.computeBoundingBox();null!==this.boundingSphere&&this.computeBoundingSphere();return this},rotateX:function(){var a=new K;return function(b){a.makeRotationX(b);this.applyMatrix(a);return this}}(),rotateY:function(){var a=new K;return function(b){a.makeRotationY(b);this.applyMatrix(a);return this}}(),rotateZ:function(){var a=new K;return function(b){a.makeRotationZ(b);this.applyMatrix(a);return this}}(),translate:function(){var a=new K;return function(b,c,d){a.makeTranslation(b,
+c,d);this.applyMatrix(a);return this}}(),scale:function(){var a=new K;return function(b,c,d){a.makeScale(b,c,d);this.applyMatrix(a);return this}}(),lookAt:function(){var a=new A;return function(b){a.lookAt(b);a.updateMatrix();this.applyMatrix(a.matrix)}}(),center:function(){this.computeBoundingBox();var a=this.boundingBox.getCenter().negate();this.translate(a.x,a.y,a.z);return a},setFromObject:function(a){var b=a.geometry;if(a.isPoints||a.isLine){a=new y(3*b.vertices.length,3);var c=new y(3*b.colors.length,
+3);this.addAttribute("position",a.copyVector3sArray(b.vertices));this.addAttribute("color",c.copyColorsArray(b.colors));b.lineDistances&&b.lineDistances.length===b.vertices.length&&(a=new y(b.lineDistances.length,1),this.addAttribute("lineDistance",a.copyArray(b.lineDistances)));null!==b.boundingSphere&&(this.boundingSphere=b.boundingSphere.clone());null!==b.boundingBox&&(this.boundingBox=b.boundingBox.clone())}else a.isMesh&&b&&b.isGeometry&&this.fromGeometry(b);return this},setFromPoints:function(a){for(var b=
+[],c=0,d=a.length;c<d;c++){var e=a[c];b.push(e.x,e.y,e.z||0)}this.addAttribute("position",new y(b,3));return this},updateFromObject:function(a){var b=a.geometry;if(a.isMesh){var c=b.__directGeometry;!0===b.elementsNeedUpdate&&(c=void 0,b.elementsNeedUpdate=!1);if(void 0===c)return this.fromGeometry(b);c.verticesNeedUpdate=b.verticesNeedUpdate;c.normalsNeedUpdate=b.normalsNeedUpdate;c.colorsNeedUpdate=b.colorsNeedUpdate;c.uvsNeedUpdate=b.uvsNeedUpdate;c.groupsNeedUpdate=b.groupsNeedUpdate;b.verticesNeedUpdate=
+!1;b.normalsNeedUpdate=!1;b.colorsNeedUpdate=!1;b.uvsNeedUpdate=!1;b.groupsNeedUpdate=!1;b=c}!0===b.verticesNeedUpdate&&(c=this.attributes.position,void 0!==c&&(c.copyVector3sArray(b.vertices),c.needsUpdate=!0),b.verticesNeedUpdate=!1);!0===b.normalsNeedUpdate&&(c=this.attributes.normal,void 0!==c&&(c.copyVector3sArray(b.normals),c.needsUpdate=!0),b.normalsNeedUpdate=!1);!0===b.colorsNeedUpdate&&(c=this.attributes.color,void 0!==c&&(c.copyColorsArray(b.colors),c.needsUpdate=!0),b.colorsNeedUpdate=
+!1);b.uvsNeedUpdate&&(c=this.attributes.uv,void 0!==c&&(c.copyVector2sArray(b.uvs),c.needsUpdate=!0),b.uvsNeedUpdate=!1);b.lineDistancesNeedUpdate&&(c=this.attributes.lineDistance,void 0!==c&&(c.copyArray(b.lineDistances),c.needsUpdate=!0),b.lineDistancesNeedUpdate=!1);b.groupsNeedUpdate&&(b.computeGroups(a.geometry),this.groups=b.groups,b.groupsNeedUpdate=!1);return this},fromGeometry:function(a){a.__directGeometry=(new Je).fromGeometry(a);return this.fromDirectGeometry(a.__directGeometry)},fromDirectGeometry:function(a){var b=
+new Float32Array(3*a.vertices.length);this.addAttribute("position",(new P(b,3)).copyVector3sArray(a.vertices));0<a.normals.length&&(b=new Float32Array(3*a.normals.length),this.addAttribute("normal",(new P(b,3)).copyVector3sArray(a.normals)));0<a.colors.length&&(b=new Float32Array(3*a.colors.length),this.addAttribute("color",(new P(b,3)).copyColorsArray(a.colors)));0<a.uvs.length&&(b=new Float32Array(2*a.uvs.length),this.addAttribute("uv",(new P(b,2)).copyVector2sArray(a.uvs)));0<a.uvs2.length&&(b=
+new Float32Array(2*a.uvs2.length),this.addAttribute("uv2",(new P(b,2)).copyVector2sArray(a.uvs2)));0<a.indices.length&&(b=new (65535<Qd(a.indices)?Uint32Array:Uint16Array)(3*a.indices.length),this.setIndex((new P(b,1)).copyIndicesArray(a.indices)));this.groups=a.groups;for(var c in a.morphTargets){for(var b=[],d=a.morphTargets[c],e=0,f=d.length;e<f;e++){var g=d[e],h=new y(3*g.length,3);b.push(h.copyVector3sArray(g))}this.morphAttributes[c]=b}0<a.skinIndices.length&&(c=new y(4*a.skinIndices.length,
+4),this.addAttribute("skinIndex",c.copyVector4sArray(a.skinIndices)));0<a.skinWeights.length&&(c=new y(4*a.skinWeights.length,4),this.addAttribute("skinWeight",c.copyVector4sArray(a.skinWeights)));null!==a.boundingSphere&&(this.boundingSphere=a.boundingSphere.clone());null!==a.boundingBox&&(this.boundingBox=a.boundingBox.clone());return this},computeBoundingBox:function(){null===this.boundingBox&&(this.boundingBox=new Oa);var a=this.attributes.position;void 0!==a?this.boundingBox.setFromBufferAttribute(a):
+this.boundingBox.makeEmpty();(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z))&&console.error('THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this)},computeBoundingSphere:function(){var a=new Oa,b=new p;return function(){null===this.boundingSphere&&(this.boundingSphere=new Da);var c=this.attributes.position;if(c){var d=this.boundingSphere.center;a.setFromBufferAttribute(c);
+a.getCenter(d);for(var e=0,f=0,g=c.count;f<g;f++)b.x=c.getX(f),b.y=c.getY(f),b.z=c.getZ(f),e=Math.max(e,d.distanceToSquared(b));this.boundingSphere.radius=Math.sqrt(e);isNaN(this.boundingSphere.radius)&&console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this)}}}(),computeFaceNormals:function(){},computeVertexNormals:function(){var a=this.index,b=this.attributes,c=this.groups;if(b.position){var d=b.position.array;
+if(void 0===b.normal)this.addAttribute("normal",new P(new Float32Array(d.length),3));else for(var e=b.normal.array,f=0,g=e.length;f<g;f++)e[f]=0;var e=b.normal.array,h=new p,k=new p,l=new p,q=new p,n=new p;if(a){a=a.array;0===c.length&&this.addGroup(0,a.length);for(var m=0,r=c.length;m<r;++m){f=c[m];g=f.start;var u=f.count;f=g;for(g+=u;f<g;f+=3){u=3*a[f+0];var v=3*a[f+1];var w=3*a[f+2];h.fromArray(d,u);k.fromArray(d,v);l.fromArray(d,w);q.subVectors(l,k);n.subVectors(h,k);q.cross(n);e[u]+=q.x;e[u+
+1]+=q.y;e[u+2]+=q.z;e[v]+=q.x;e[v+1]+=q.y;e[v+2]+=q.z;e[w]+=q.x;e[w+1]+=q.y;e[w+2]+=q.z}}}else for(f=0,g=d.length;f<g;f+=9)h.fromArray(d,f),k.fromArray(d,f+3),l.fromArray(d,f+6),q.subVectors(l,k),n.subVectors(h,k),q.cross(n),e[f]=q.x,e[f+1]=q.y,e[f+2]=q.z,e[f+3]=q.x,e[f+4]=q.y,e[f+5]=q.z,e[f+6]=q.x,e[f+7]=q.y,e[f+8]=q.z;this.normalizeNormals();b.normal.needsUpdate=!0}},merge:function(a,b){if(a&&a.isBufferGeometry){void 0===b&&(b=0);var c=this.attributes,d;for(d in c)if(void 0!==a.attributes[d])for(var e=
+c[d].array,f=a.attributes[d],g=f.array,h=0,f=f.itemSize*b;h<g.length;h++,f++)e[f]=g[h];return this}console.error("THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.",a)},normalizeNormals:function(){var a=new p;return function(){for(var b=this.attributes.normal,c=0,d=b.count;c<d;c++)a.x=b.getX(c),a.y=b.getY(c),a.z=b.getZ(c),a.normalize(),b.setXYZ(c,a.x,a.y,a.z)}}(),toNonIndexed:function(){if(null===this.index)return console.warn("THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed."),
+this;var a=new D,b=this.index.array,c=this.attributes,d;for(d in c){for(var e=c[d],f=e.array,e=e.itemSize,g=new f.constructor(b.length*e),h,k=0,l=0,q=b.length;l<q;l++){h=b[l]*e;for(var n=0;n<e;n++)g[k++]=f[h++]}a.addAttribute(d,new P(g,e))}return a},toJSON:function(){var a={metadata:{version:4.5,type:"BufferGeometry",generator:"BufferGeometry.toJSON"}};a.uuid=this.uuid;a.type=this.type;""!==this.name&&(a.name=this.name);if(void 0!==this.parameters){var b=this.parameters;for(var c in b)void 0!==b[c]&&
+(a[c]=b[c]);return a}a.data={attributes:{}};var d=this.index;null!==d&&(b=Array.prototype.slice.call(d.array),a.data.index={type:d.array.constructor.name,array:b});d=this.attributes;for(c in d){var e=d[c];b=Array.prototype.slice.call(e.array);a.data.attributes[c]={itemSize:e.itemSize,type:e.array.constructor.name,array:b,normalized:e.normalized}}c=this.groups;0<c.length&&(a.data.groups=JSON.parse(JSON.stringify(c)));c=this.boundingSphere;null!==c&&(a.data.boundingSphere={center:c.center.toArray(),
+radius:c.radius});return a},clone:function(){return(new D).copy(this)},copy:function(a){var b;this.index=null;this.attributes={};this.morphAttributes={};this.groups=[];this.boundingSphere=this.boundingBox=null;this.name=a.name;var c=a.index;null!==c&&this.setIndex(c.clone());c=a.attributes;for(g in c)this.addAttribute(g,c[g].clone());var d=a.morphAttributes;for(g in d){var e=[],f=d[g];c=0;for(b=f.length;c<b;c++)e.push(f[c].clone());this.morphAttributes[g]=e}var g=a.groups;c=0;for(b=g.length;c<b;c++)d=
+g[c],this.addGroup(d.start,d.count,d.materialIndex);g=a.boundingBox;null!==g&&(this.boundingBox=g.clone());g=a.boundingSphere;null!==g&&(this.boundingSphere=g.clone());this.drawRange.start=a.drawRange.start;this.drawRange.count=a.drawRange.count;return this},dispose:function(){this.dispatchEvent({type:"dispose"})}});Lb.prototype=Object.create(N.prototype);Lb.prototype.constructor=Lb;jb.prototype=Object.create(D.prototype);jb.prototype.constructor=jb;Ac.prototype=Object.create(N.prototype);Ac.prototype.constructor=
+Ac;kb.prototype=Object.create(D.prototype);kb.prototype.constructor=kb;va.prototype=Object.create(Q.prototype);va.prototype.constructor=va;va.prototype.isMeshBasicMaterial=!0;va.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.color.copy(a.color);this.map=a.map;this.lightMap=a.lightMap;this.lightMapIntensity=a.lightMapIntensity;this.aoMap=a.aoMap;this.aoMapIntensity=a.aoMapIntensity;this.specularMap=a.specularMap;this.alphaMap=a.alphaMap;this.envMap=a.envMap;this.combine=a.combine;this.reflectivity=
+a.reflectivity;this.refractionRatio=a.refractionRatio;this.wireframe=a.wireframe;this.wireframeLinewidth=a.wireframeLinewidth;this.wireframeLinecap=a.wireframeLinecap;this.wireframeLinejoin=a.wireframeLinejoin;this.skinning=a.skinning;this.morphTargets=a.morphTargets;return this};oa.prototype=Object.create(Q.prototype);oa.prototype.constructor=oa;oa.prototype.isShaderMaterial=!0;oa.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.fragmentShader=a.fragmentShader;this.vertexShader=a.vertexShader;
+this.uniforms=Ea.clone(a.uniforms);this.defines=a.defines;this.wireframe=a.wireframe;this.wireframeLinewidth=a.wireframeLinewidth;this.lights=a.lights;this.clipping=a.clipping;this.skinning=a.skinning;this.morphTargets=a.morphTargets;this.morphNormals=a.morphNormals;this.extensions=a.extensions;return this};oa.prototype.toJSON=function(a){a=Q.prototype.toJSON.call(this,a);a.uniforms=this.uniforms;a.vertexShader=this.vertexShader;a.fragmentShader=this.fragmentShader;return a};Object.assign(lb.prototype,
+{set:function(a,b){this.origin.copy(a);this.direction.copy(b);return this},clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.origin.copy(a.origin);this.direction.copy(a.direction);return this},at:function(a,b){return(b||new p).copy(this.direction).multiplyScalar(a).add(this.origin)},lookAt:function(a){this.direction.copy(a).sub(this.origin).normalize();return this},recast:function(){var a=new p;return function(b){this.origin.copy(this.at(b,a));return this}}(),closestPointToPoint:function(a,
+b){b=b||new p;b.subVectors(a,this.origin);a=b.dot(this.direction);return 0>a?b.copy(this.origin):b.copy(this.direction).multiplyScalar(a).add(this.origin)},distanceToPoint:function(a){return Math.sqrt(this.distanceSqToPoint(a))},distanceSqToPoint:function(){var a=new p;return function(b){var c=a.subVectors(b,this.origin).dot(this.direction);if(0>c)return this.origin.distanceToSquared(b);a.copy(this.direction).multiplyScalar(c).add(this.origin);return a.distanceToSquared(b)}}(),distanceSqToSegment:function(){var a=
+new p,b=new p,c=new p;return function(d,e,f,g){a.copy(d).add(e).multiplyScalar(.5);b.copy(e).sub(d).normalize();c.copy(this.origin).sub(a);var h=.5*d.distanceTo(e),k=-this.direction.dot(b),l=c.dot(this.direction),q=-c.dot(b),n=c.lengthSq(),m=Math.abs(1-k*k);if(0<m){d=k*q-l;e=k*l-q;var p=h*m;0<=d?e>=-p?e<=p?(h=1/m,d*=h,e*=h,k=d*(d+k*e+2*l)+e*(k*d+e+2*q)+n):(e=h,d=Math.max(0,-(k*e+l)),k=-d*d+e*(e+2*q)+n):(e=-h,d=Math.max(0,-(k*e+l)),k=-d*d+e*(e+2*q)+n):e<=-p?(d=Math.max(0,-(-k*h+l)),e=0<d?-h:Math.min(Math.max(-h,
+-q),h),k=-d*d+e*(e+2*q)+n):e<=p?(d=0,e=Math.min(Math.max(-h,-q),h),k=e*(e+2*q)+n):(d=Math.max(0,-(k*h+l)),e=0<d?h:Math.min(Math.max(-h,-q),h),k=-d*d+e*(e+2*q)+n)}else e=0<k?-h:h,d=Math.max(0,-(k*e+l)),k=-d*d+e*(e+2*q)+n;f&&f.copy(this.direction).multiplyScalar(d).add(this.origin);g&&g.copy(b).multiplyScalar(e).add(a);return k}}(),intersectSphere:function(){var a=new p;return function(b,c){a.subVectors(b.center,this.origin);var d=a.dot(this.direction),e=a.dot(a)-d*d;b=b.radius*b.radius;if(e>b)return null;
+b=Math.sqrt(b-e);e=d-b;d+=b;return 0>e&&0>d?null:0>e?this.at(d,c):this.at(e,c)}}(),intersectsSphere:function(a){return this.distanceToPoint(a.center)<=a.radius},distanceToPlane:function(a){var b=a.normal.dot(this.direction);if(0===b)return 0===a.distanceToPoint(this.origin)?0:null;a=-(this.origin.dot(a.normal)+a.constant)/b;return 0<=a?a:null},intersectPlane:function(a,b){a=this.distanceToPlane(a);return null===a?null:this.at(a,b)},intersectsPlane:function(a){var b=a.distanceToPoint(this.origin);
+return 0===b||0>a.normal.dot(this.direction)*b?!0:!1},intersectBox:function(a,b){var c=1/this.direction.x;var d=1/this.direction.y;var e=1/this.direction.z,f=this.origin;if(0<=c){var g=(a.min.x-f.x)*c;c*=a.max.x-f.x}else g=(a.max.x-f.x)*c,c*=a.min.x-f.x;if(0<=d){var h=(a.min.y-f.y)*d;d*=a.max.y-f.y}else h=(a.max.y-f.y)*d,d*=a.min.y-f.y;if(g>d||h>c)return null;if(h>g||g!==g)g=h;if(d<c||c!==c)c=d;0<=e?(h=(a.min.z-f.z)*e,a=(a.max.z-f.z)*e):(h=(a.max.z-f.z)*e,a=(a.min.z-f.z)*e);if(g>a||h>c)return null;
+if(h>g||g!==g)g=h;if(a<c||c!==c)c=a;return 0>c?null:this.at(0<=g?g:c,b)},intersectsBox:function(){var a=new p;return function(b){return null!==this.intersectBox(b,a)}}(),intersectTriangle:function(){var a=new p,b=new p,c=new p,d=new p;return function(e,f,g,h,k){b.subVectors(f,e);c.subVectors(g,e);d.crossVectors(b,c);f=this.direction.dot(d);if(0<f){if(h)return null;h=1}else if(0>f)h=-1,f=-f;else return null;a.subVectors(this.origin,e);e=h*this.direction.dot(c.crossVectors(a,c));if(0>e)return null;
+g=h*this.direction.dot(b.cross(a));if(0>g||e+g>f)return null;e=-h*a.dot(d);return 0>e?null:this.at(e/f,k)}}(),applyMatrix4:function(a){this.origin.applyMatrix4(a);this.direction.transformDirection(a);return this},equals:function(a){return a.origin.equals(this.origin)&&a.direction.equals(this.direction)}});Object.assign(Mb.prototype,{set:function(a,b){this.start.copy(a);this.end.copy(b);return this},clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.start.copy(a.start);
+this.end.copy(a.end);return this},getCenter:function(a){return(a||new p).addVectors(this.start,this.end).multiplyScalar(.5)},delta:function(a){return(a||new p).subVectors(this.end,this.start)},distanceSq:function(){return this.start.distanceToSquared(this.end)},distance:function(){return this.start.distanceTo(this.end)},at:function(a,b){b=b||new p;return this.delta(b).multiplyScalar(a).add(this.start)},closestPointToPointParameter:function(){var a=new p,b=new p;return function(c,d){a.subVectors(c,
+this.start);b.subVectors(this.end,this.start);c=b.dot(b);c=b.dot(a)/c;d&&(c=R.clamp(c,0,1));return c}}(),closestPointToPoint:function(a,b,c){a=this.closestPointToPointParameter(a,b);c=c||new p;return this.delta(c).multiplyScalar(a).add(this.start)},applyMatrix4:function(a){this.start.applyMatrix4(a);this.end.applyMatrix4(a);return this},equals:function(a){return a.start.equals(this.start)&&a.end.equals(this.end)}});Object.assign(Qa,{normal:function(){var a=new p;return function(b,c,d,e){e=e||new p;
+e.subVectors(d,c);a.subVectors(b,c);e.cross(a);b=e.lengthSq();return 0<b?e.multiplyScalar(1/Math.sqrt(b)):e.set(0,0,0)}}(),barycoordFromPoint:function(){var a=new p,b=new p,c=new p;return function(d,e,f,g,h){a.subVectors(g,e);b.subVectors(f,e);c.subVectors(d,e);d=a.dot(a);e=a.dot(b);f=a.dot(c);var k=b.dot(b);g=b.dot(c);var l=d*k-e*e;h=h||new p;if(0===l)return h.set(-2,-1,-1);l=1/l;k=(k*f-e*g)*l;d=(d*g-e*f)*l;return h.set(1-k-d,d,k)}}(),containsPoint:function(){var a=new p;return function(b,c,d,e){b=
+Qa.barycoordFromPoint(b,c,d,e,a);return 0<=b.x&&0<=b.y&&1>=b.x+b.y}}()});Object.assign(Qa.prototype,{set:function(a,b,c){this.a.copy(a);this.b.copy(b);this.c.copy(c);return this},setFromPointsAndIndices:function(a,b,c,d){this.a.copy(a[b]);this.b.copy(a[c]);this.c.copy(a[d]);return this},clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.a.copy(a.a);this.b.copy(a.b);this.c.copy(a.c);return this},area:function(){var a=new p,b=new p;return function(){a.subVectors(this.c,
+this.b);b.subVectors(this.a,this.b);return.5*a.cross(b).length()}}(),midpoint:function(a){return(a||new p).addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3)},normal:function(a){return Qa.normal(this.a,this.b,this.c,a)},plane:function(a){return(a||new Aa).setFromCoplanarPoints(this.a,this.b,this.c)},barycoordFromPoint:function(a,b){return Qa.barycoordFromPoint(a,this.a,this.b,this.c,b)},containsPoint:function(a){return Qa.containsPoint(a,this.a,this.b,this.c)},closestPointToPoint:function(){var a=
+new Aa,b=[new Mb,new Mb,new Mb],c=new p,d=new p;return function(e,f){f=f||new p;var g=Infinity;a.setFromCoplanarPoints(this.a,this.b,this.c);a.projectPoint(e,c);if(!0===this.containsPoint(c))f.copy(c);else for(b[0].set(this.a,this.b),b[1].set(this.b,this.c),b[2].set(this.c,this.a),e=0;e<b.length;e++){b[e].closestPointToPoint(c,!0,d);var h=c.distanceToSquared(d);h<g&&(g=h,f.copy(d))}return f}}(),equals:function(a){return a.a.equals(this.a)&&a.b.equals(this.b)&&a.c.equals(this.c)}});pa.prototype=Object.assign(Object.create(A.prototype),
+{constructor:pa,isMesh:!0,setDrawMode:function(a){this.drawMode=a},copy:function(a){A.prototype.copy.call(this,a);this.drawMode=a.drawMode;void 0!==a.morphTargetInfluences&&(this.morphTargetInfluences=a.morphTargetInfluences.slice());void 0!==a.morphTargetDictionary&&(this.morphTargetDictionary=Object.assign({},a.morphTargetDictionary));return this},updateMorphTargets:function(){var a=this.geometry;if(a.isBufferGeometry){a=a.morphAttributes;var b=Object.keys(a);if(0<b.length){var c=a[b[0]];if(void 0!==
+c)for(this.morphTargetInfluences=[],this.morphTargetDictionary={},a=0,b=c.length;a<b;a++){var d=c[a].name||String(a);this.morphTargetInfluences.push(0);this.morphTargetDictionary[d]=a}}}else if(c=a.morphTargets,void 0!==c&&0<c.length)for(this.morphTargetInfluences=[],this.morphTargetDictionary={},a=0,b=c.length;a<b;a++)d=c[a].name||String(a),this.morphTargetInfluences.push(0),this.morphTargetDictionary[d]=a},raycast:function(){function a(a,b,c,d,e,f,g){Qa.barycoordFromPoint(a,b,c,d,v);e.multiplyScalar(v.x);
+f.multiplyScalar(v.y);g.multiplyScalar(v.z);e.add(f).add(g);return e.clone()}function b(a,b,c,d,e,f,g,h){if(null===(1===b.side?d.intersectTriangle(g,f,e,!0,h):d.intersectTriangle(e,f,g,2!==b.side,h)))return null;x.copy(h);x.applyMatrix4(a.matrixWorld);b=c.ray.origin.distanceTo(x);return b<c.near||b>c.far?null:{distance:b,point:x.clone(),object:a}}function c(c,d,e,f,l,n,q,t){g.fromBufferAttribute(f,n);h.fromBufferAttribute(f,q);k.fromBufferAttribute(f,t);if(c=b(c,c.material,d,e,g,h,k,w))l&&(m.fromBufferAttribute(l,
+n),r.fromBufferAttribute(l,q),u.fromBufferAttribute(l,t),c.uv=a(w,g,h,k,m,r,u)),c.face=new Pa(n,q,t,Qa.normal(g,h,k)),c.faceIndex=n;return c}var d=new K,e=new lb,f=new Da,g=new p,h=new p,k=new p,l=new p,q=new p,n=new p,m=new C,r=new C,u=new C,v=new p,w=new p,x=new p;return function(t,p){var v=this.geometry,x=this.material,z=this.matrixWorld;if(void 0!==x&&(null===v.boundingSphere&&v.computeBoundingSphere(),f.copy(v.boundingSphere),f.applyMatrix4(z),!1!==t.ray.intersectsSphere(f)&&(d.getInverse(z),
+e.copy(t.ray).applyMatrix4(d),null===v.boundingBox||!1!==e.intersectsBox(v.boundingBox)))){var y;if(v.isBufferGeometry){var x=v.index,I=v.attributes.position,z=v.attributes.uv,C;if(null!==x){var A=0;for(C=x.count;A<C;A+=3){v=x.getX(A);var D=x.getX(A+1);var E=x.getX(A+2);if(y=c(this,t,e,I,z,v,D,E))y.faceIndex=Math.floor(A/3),p.push(y)}}else if(void 0!==I)for(A=0,C=I.count;A<C;A+=3)if(v=A,D=A+1,E=A+2,y=c(this,t,e,I,z,v,D,E))y.index=v,p.push(y)}else if(v.isGeometry){var z=Array.isArray(x);A=v.vertices;
+C=v.faces;D=v.faceVertexUvs[0];0<D.length&&(I=D);for(var H=0,N=C.length;H<N;H++){var M=C[H];y=z?x[M.materialIndex]:x;if(void 0!==y){D=A[M.a];E=A[M.b];var V=A[M.c];if(!0===y.morphTargets){var K=v.morphTargets,P=this.morphTargetInfluences;g.set(0,0,0);h.set(0,0,0);k.set(0,0,0);for(var Q=0,R=K.length;Q<R;Q++){var O=P[Q];if(0!==O){var S=K[Q].vertices;g.addScaledVector(l.subVectors(S[M.a],D),O);h.addScaledVector(q.subVectors(S[M.b],E),O);k.addScaledVector(n.subVectors(S[M.c],V),O)}}g.add(D);h.add(E);k.add(V);
+D=g;E=h;V=k}if(y=b(this,y,t,e,D,E,V,w))I&&I[H]&&(K=I[H],m.copy(K[0]),r.copy(K[1]),u.copy(K[2]),y.uv=a(w,D,E,V,m,r,u)),y.face=M,y.faceIndex=H,p.push(y)}}}}}}(),clone:function(){return(new this.constructor(this.geometry,this.material)).copy(this)}});var ig=0;U.prototype=Object.assign(Object.create(La.prototype),{constructor:U,isPerspectiveCamera:!0,copy:function(a,b){La.prototype.copy.call(this,a,b);this.fov=a.fov;this.zoom=a.zoom;this.near=a.near;this.far=a.far;this.focus=a.focus;this.aspect=a.aspect;
+this.view=null===a.view?null:Object.assign({},a.view);this.filmGauge=a.filmGauge;this.filmOffset=a.filmOffset;return this},setFocalLength:function(a){a=.5*this.getFilmHeight()/a;this.fov=2*R.RAD2DEG*Math.atan(a);this.updateProjectionMatrix()},getFocalLength:function(){var a=Math.tan(.5*R.DEG2RAD*this.fov);return.5*this.getFilmHeight()/a},getEffectiveFOV:function(){return 2*R.RAD2DEG*Math.atan(Math.tan(.5*R.DEG2RAD*this.fov)/this.zoom)},getFilmWidth:function(){return this.filmGauge*Math.min(this.aspect,
+1)},getFilmHeight:function(){return this.filmGauge/Math.max(this.aspect,1)},setViewOffset:function(a,b,c,d,e,f){this.aspect=a/b;null===this.view&&(this.view={enabled:!0,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1});this.view.enabled=!0;this.view.fullWidth=a;this.view.fullHeight=b;this.view.offsetX=c;this.view.offsetY=d;this.view.width=e;this.view.height=f;this.updateProjectionMatrix()},clearViewOffset:function(){null!==this.view&&(this.view.enabled=!1);this.updateProjectionMatrix()},
+updateProjectionMatrix:function(){var a=this.near,b=a*Math.tan(.5*R.DEG2RAD*this.fov)/this.zoom,c=2*b,d=this.aspect*c,e=-.5*d,f=this.view;if(null!==this.view&&this.view.enabled)var g=f.fullWidth,h=f.fullHeight,e=e+f.offsetX*d/g,b=b-f.offsetY*c/h,d=f.width/g*d,c=f.height/h*c;f=this.filmOffset;0!==f&&(e+=a*f/this.getFilmWidth());this.projectionMatrix.makePerspective(e,e+d,b,b-c,a,this.far)},toJSON:function(a){a=A.prototype.toJSON.call(this,a);a.object.fov=this.fov;a.object.zoom=this.zoom;a.object.near=
+this.near;a.object.far=this.far;a.object.focus=this.focus;a.object.aspect=this.aspect;null!==this.view&&(a.object.view=Object.assign({},this.view));a.object.filmGauge=this.filmGauge;a.object.filmOffset=this.filmOffset;return a}});nd.prototype=Object.assign(Object.create(U.prototype),{constructor:nd,isArrayCamera:!0});Ob.prototype.isFogExp2=!0;Ob.prototype.clone=function(){return new Ob(this.color.getHex(),this.density)};Ob.prototype.toJSON=function(){return{type:"FogExp2",color:this.color.getHex(),
+density:this.density}};Pb.prototype.isFog=!0;Pb.prototype.clone=function(){return new Pb(this.color.getHex(),this.near,this.far)};Pb.prototype.toJSON=function(){return{type:"Fog",color:this.color.getHex(),near:this.near,far:this.far}};od.prototype=Object.assign(Object.create(A.prototype),{constructor:od,copy:function(a,b){A.prototype.copy.call(this,a,b);null!==a.background&&(this.background=a.background.clone());null!==a.fog&&(this.fog=a.fog.clone());null!==a.overrideMaterial&&(this.overrideMaterial=
+a.overrideMaterial.clone());this.autoUpdate=a.autoUpdate;this.matrixAutoUpdate=a.matrixAutoUpdate;return this},toJSON:function(a){var b=A.prototype.toJSON.call(this,a);null!==this.background&&(b.object.background=this.background.toJSON(a));null!==this.fog&&(b.object.fog=this.fog.toJSON());return b}});Xd.prototype=Object.assign(Object.create(A.prototype),{constructor:Xd,isLensFlare:!0,copy:function(a){A.prototype.copy.call(this,a);this.positionScreen.copy(a.positionScreen);this.customUpdateCallback=
+a.customUpdateCallback;for(var b=0,c=a.lensFlares.length;b<c;b++)this.lensFlares.push(a.lensFlares[b]);return this},add:function(a,b,c,d,e,f){void 0===b&&(b=-1);void 0===c&&(c=0);void 0===f&&(f=1);void 0===e&&(e=new H(16777215));void 0===d&&(d=1);c=Math.min(c,Math.max(0,c));this.lensFlares.push({texture:a,size:b,distance:c,x:0,y:0,z:0,scale:1,rotation:0,opacity:f,color:e,blending:d})},updateLensFlares:function(){var a,b=this.lensFlares.length,c=2*-this.positionScreen.x,d=2*-this.positionScreen.y;
+for(a=0;a<b;a++){var e=this.lensFlares[a];e.x=this.positionScreen.x+c*e.distance;e.y=this.positionScreen.y+d*e.distance;e.wantedRotation=e.x*Math.PI*.25;e.rotation+=.25*(e.wantedRotation-e.rotation)}}});Za.prototype=Object.create(Q.prototype);Za.prototype.constructor=Za;Za.prototype.isSpriteMaterial=!0;Za.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.color.copy(a.color);this.map=a.map;this.rotation=a.rotation;return this};Cc.prototype=Object.assign(Object.create(A.prototype),{constructor:Cc,
+isSprite:!0,raycast:function(){var a=new p,b=new p,c=new p;return function(d,e){b.setFromMatrixPosition(this.matrixWorld);d.ray.closestPointToPoint(b,a);c.setFromMatrixScale(this.matrixWorld);var f=c.x*c.y/4;b.distanceToSquared(a)>f||(f=d.ray.origin.distanceTo(a),f<d.near||f>d.far||e.push({distance:f,point:a.clone(),face:null,object:this}))}}(),clone:function(){return(new this.constructor(this.material)).copy(this)}});Dc.prototype=Object.assign(Object.create(A.prototype),{constructor:Dc,copy:function(a){A.prototype.copy.call(this,
+a,!1);a=a.levels;for(var b=0,c=a.length;b<c;b++){var d=a[b];this.addLevel(d.object.clone(),d.distance)}return this},addLevel:function(a,b){void 0===b&&(b=0);b=Math.abs(b);for(var c=this.levels,d=0;d<c.length&&!(b<c[d].distance);d++);c.splice(d,0,{distance:b,object:a});this.add(a)},getObjectForDistance:function(a){for(var b=this.levels,c=1,d=b.length;c<d&&!(a<b[c].distance);c++);return b[c-1].object},raycast:function(){var a=new p;return function(b,c){a.setFromMatrixPosition(this.matrixWorld);var d=
+b.ray.origin.distanceTo(a);this.getObjectForDistance(d).raycast(b,c)}}(),update:function(){var a=new p,b=new p;return function(c){var d=this.levels;if(1<d.length){a.setFromMatrixPosition(c.matrixWorld);b.setFromMatrixPosition(this.matrixWorld);c=a.distanceTo(b);d[0].object.visible=!0;for(var e=1,f=d.length;e<f;e++)if(c>=d[e].distance)d[e-1].object.visible=!1,d[e].object.visible=!0;else break;for(;e<f;e++)d[e].object.visible=!1}}}(),toJSON:function(a){a=A.prototype.toJSON.call(this,a);a.object.levels=
+[];for(var b=this.levels,c=0,d=b.length;c<d;c++){var e=b[c];a.object.levels.push({object:e.object.uuid,distance:e.distance})}return a}});Object.assign(Ec.prototype,{calculateInverses:function(){this.boneInverses=[];for(var a=0,b=this.bones.length;a<b;a++){var c=new K;this.bones[a]&&c.getInverse(this.bones[a].matrixWorld);this.boneInverses.push(c)}},pose:function(){var a,b;var c=0;for(b=this.bones.length;c<b;c++)(a=this.bones[c])&&a.matrixWorld.getInverse(this.boneInverses[c]);c=0;for(b=this.bones.length;c<
+b;c++)if(a=this.bones[c])a.parent&&a.parent.isBone?(a.matrix.getInverse(a.parent.matrixWorld),a.matrix.multiply(a.matrixWorld)):a.matrix.copy(a.matrixWorld),a.matrix.decompose(a.position,a.quaternion,a.scale)},update:function(){var a=new K,b=new K;return function(){for(var c=this.bones,d=this.boneInverses,e=this.boneMatrices,f=this.boneTexture,g=0,h=c.length;g<h;g++)a.multiplyMatrices(c[g]?c[g].matrixWorld:b,d[g]),a.toArray(e,16*g);void 0!==f&&(f.needsUpdate=!0)}}(),clone:function(){return new Ec(this.bones,
+this.boneInverses)}});pd.prototype=Object.assign(Object.create(A.prototype),{constructor:pd,isBone:!0});qd.prototype=Object.assign(Object.create(pa.prototype),{constructor:qd,isSkinnedMesh:!0,initBones:function(){var a=[],b;if(this.geometry&&void 0!==this.geometry.bones){var c=0;for(b=this.geometry.bones.length;c<b;c++){var d=this.geometry.bones[c];var e=new pd;a.push(e);e.name=d.name;e.position.fromArray(d.pos);e.quaternion.fromArray(d.rotq);void 0!==d.scl&&e.scale.fromArray(d.scl)}c=0;for(b=this.geometry.bones.length;c<
+b;c++)d=this.geometry.bones[c],-1!==d.parent&&null!==d.parent&&void 0!==a[d.parent]?a[d.parent].add(a[c]):this.add(a[c])}this.updateMatrixWorld(!0);return a},bind:function(a,b){this.skeleton=a;void 0===b&&(this.updateMatrixWorld(!0),this.skeleton.calculateInverses(),b=this.matrixWorld);this.bindMatrix.copy(b);this.bindMatrixInverse.getInverse(b)},pose:function(){this.skeleton.pose()},normalizeSkinWeights:function(){var a;if(this.geometry&&this.geometry.isGeometry)for(a=0;a<this.geometry.skinWeights.length;a++){var b=
+this.geometry.skinWeights[a];var c=1/b.manhattanLength();Infinity!==c?b.multiplyScalar(c):b.set(1,0,0,0)}else if(this.geometry&&this.geometry.isBufferGeometry){var b=new da,d=this.geometry.attributes.skinWeight;for(a=0;a<d.count;a++)b.x=d.getX(a),b.y=d.getY(a),b.z=d.getZ(a),b.w=d.getW(a),c=1/b.manhattanLength(),Infinity!==c?b.multiplyScalar(c):b.set(1,0,0,0),d.setXYZW(a,b.x,b.y,b.z,b.w)}},updateMatrixWorld:function(a){pa.prototype.updateMatrixWorld.call(this,a);"attached"===this.bindMode?this.bindMatrixInverse.getInverse(this.matrixWorld):
+"detached"===this.bindMode?this.bindMatrixInverse.getInverse(this.bindMatrix):console.warn("THREE.SkinnedMesh: Unrecognized bindMode: "+this.bindMode)},clone:function(){return(new this.constructor(this.geometry,this.material)).copy(this)}});O.prototype=Object.create(Q.prototype);O.prototype.constructor=O;O.prototype.isLineBasicMaterial=!0;O.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.color.copy(a.color);this.linewidth=a.linewidth;this.linecap=a.linecap;this.linejoin=a.linejoin;return this};
+ma.prototype=Object.assign(Object.create(A.prototype),{constructor:ma,isLine:!0,raycast:function(){var a=new K,b=new lb,c=new Da;return function(d,e){var f=d.linePrecision,f=f*f,g=this.geometry,h=this.matrixWorld;null===g.boundingSphere&&g.computeBoundingSphere();c.copy(g.boundingSphere);c.applyMatrix4(h);if(!1!==d.ray.intersectsSphere(c)){a.getInverse(h);b.copy(d.ray).applyMatrix4(a);var k=new p,l=new p,h=new p,q=new p,n=this&&this.isLineSegments?2:1;if(g.isBufferGeometry){var m=g.index;var r=g.attributes.position.array;
+if(null!==m)for(var u=m.array,g=0,v=u.length-1;g<v;g+=n)m=u[g+1],k.fromArray(r,3*u[g]),l.fromArray(r,3*m),m=b.distanceSqToSegment(k,l,q,h),m>f||(q.applyMatrix4(this.matrixWorld),m=d.ray.origin.distanceTo(q),m<d.near||m>d.far||e.push({distance:m,point:h.clone().applyMatrix4(this.matrixWorld),index:g,face:null,faceIndex:null,object:this}));else for(g=0,v=r.length/3-1;g<v;g+=n)k.fromArray(r,3*g),l.fromArray(r,3*g+3),m=b.distanceSqToSegment(k,l,q,h),m>f||(q.applyMatrix4(this.matrixWorld),m=d.ray.origin.distanceTo(q),
+m<d.near||m>d.far||e.push({distance:m,point:h.clone().applyMatrix4(this.matrixWorld),index:g,face:null,faceIndex:null,object:this}))}else if(g.isGeometry)for(k=g.vertices,l=k.length,g=0;g<l-1;g+=n)m=b.distanceSqToSegment(k[g],k[g+1],q,h),m>f||(q.applyMatrix4(this.matrixWorld),m=d.ray.origin.distanceTo(q),m<d.near||m>d.far||e.push({distance:m,point:h.clone().applyMatrix4(this.matrixWorld),index:g,face:null,faceIndex:null,object:this}))}}}(),clone:function(){return(new this.constructor(this.geometry,
+this.material)).copy(this)}});ca.prototype=Object.assign(Object.create(ma.prototype),{constructor:ca,isLineSegments:!0});rd.prototype=Object.assign(Object.create(ma.prototype),{constructor:rd,isLineLoop:!0});Ba.prototype=Object.create(Q.prototype);Ba.prototype.constructor=Ba;Ba.prototype.isPointsMaterial=!0;Ba.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.color.copy(a.color);this.map=a.map;this.size=a.size;this.sizeAttenuation=a.sizeAttenuation;return this};Qb.prototype=Object.assign(Object.create(A.prototype),
+{constructor:Qb,isPoints:!0,raycast:function(){var a=new K,b=new lb,c=new Da;return function(d,e){function f(a,c){var f=b.distanceSqToPoint(a);if(f<m){a=b.closestPointToPoint(a);a.applyMatrix4(k);var h=d.ray.origin.distanceTo(a);h<d.near||h>d.far||e.push({distance:h,distanceToRay:Math.sqrt(f),point:a.clone(),index:c,face:null,object:g})}}var g=this,h=this.geometry,k=this.matrixWorld,l=d.params.Points.threshold;null===h.boundingSphere&&h.computeBoundingSphere();c.copy(h.boundingSphere);c.applyMatrix4(k);
+c.radius+=l;if(!1!==d.ray.intersectsSphere(c)){a.getInverse(k);b.copy(d.ray).applyMatrix4(a);var l=l/((this.scale.x+this.scale.y+this.scale.z)/3),m=l*l,l=new p;if(h.isBufferGeometry){var n=h.index,h=h.attributes.position.array;if(null!==n)for(var t=n.array,n=0,r=t.length;n<r;n++){var u=t[n];l.fromArray(h,3*u);f(l,u)}else for(n=0,t=h.length/3;n<t;n++)l.fromArray(h,3*n),f(l,n)}else for(l=h.vertices,n=0,t=l.length;n<t;n++)f(l[n],n)}}}(),clone:function(){return(new this.constructor(this.geometry,this.material)).copy(this)}});
+Fc.prototype=Object.assign(Object.create(A.prototype),{constructor:Fc});sd.prototype=Object.create(ea.prototype);sd.prototype.constructor=sd;Rb.prototype=Object.create(ea.prototype);Rb.prototype.constructor=Rb;Rb.prototype.isCompressedTexture=!0;Gc.prototype=Object.create(ea.prototype);Gc.prototype.constructor=Gc;Gc.prototype.isDepthTexture=!0;Sb.prototype=Object.create(D.prototype);Sb.prototype.constructor=Sb;Hc.prototype=Object.create(N.prototype);Hc.prototype.constructor=Hc;Tb.prototype=Object.create(D.prototype);
+Tb.prototype.constructor=Tb;Ic.prototype=Object.create(N.prototype);Ic.prototype.constructor=Ic;qa.prototype=Object.create(D.prototype);qa.prototype.constructor=qa;Jc.prototype=Object.create(N.prototype);Jc.prototype.constructor=Jc;Ub.prototype=Object.create(qa.prototype);Ub.prototype.constructor=Ub;Kc.prototype=Object.create(N.prototype);Kc.prototype.constructor=Kc;nb.prototype=Object.create(qa.prototype);nb.prototype.constructor=nb;Lc.prototype=Object.create(N.prototype);Lc.prototype.constructor=
+Lc;Vb.prototype=Object.create(qa.prototype);Vb.prototype.constructor=Vb;Mc.prototype=Object.create(N.prototype);Mc.prototype.constructor=Mc;Wb.prototype=Object.create(qa.prototype);Wb.prototype.constructor=Wb;Nc.prototype=Object.create(N.prototype);Nc.prototype.constructor=Nc;Xb.prototype=Object.create(D.prototype);Xb.prototype.constructor=Xb;Oc.prototype=Object.create(N.prototype);Oc.prototype.constructor=Oc;Yb.prototype=Object.create(D.prototype);Yb.prototype.constructor=Yb;Pc.prototype=Object.create(N.prototype);
+Pc.prototype.constructor=Pc;Zb.prototype=Object.create(D.prototype);Zb.prototype.constructor=Zb;var Ha={area:function(a){for(var b=a.length,c=0,d=b-1,e=0;e<b;d=e++)c+=a[d].x*a[e].y-a[e].x*a[d].y;return.5*c},triangulate:function(){return function(a,b){var c=a.length;if(3>c)return null;var d=[],e=[],f=[],g;if(0<Ha.area(a))for(g=0;g<c;g++)e[g]=g;else for(g=0;g<c;g++)e[g]=c-1-g;var h=2*c;for(g=c-1;2<c;){if(0>=h--){console.warn("THREE.ShapeUtils: Unable to triangulate polygon! in triangulate()");break}var k=
+g;c<=k&&(k=0);g=k+1;c<=g&&(g=0);var l=g+1;c<=l&&(l=0);a:{var m;var n=a[e[k]].x;var p=a[e[k]].y;var r=a[e[g]].x;var u=a[e[g]].y;var v=a[e[l]].x;var w=a[e[l]].y;if(0>=(r-n)*(w-p)-(u-p)*(v-n))var x=!1;else{var z=v-r;var y=w-u;var B=n-v;var C=p-w;var A=r-n;x=u-p;for(m=0;m<c;m++){var D=a[e[m]].x;var E=a[e[m]].y;if(!(D===n&&E===p||D===r&&E===u||D===v&&E===w)){var H=D-n;var N=E-p;var K=D-r;var L=E-u;D-=v;E-=w;L=z*L-y*K;N=A*N-x*H;D=B*E-C*D;if(L>=-Number.EPSILON&&D>=-Number.EPSILON&&N>=-Number.EPSILON){x=
+!1;break a}}}x=!0}}if(x){d.push([a[e[k]],a[e[g]],a[e[l]]]);f.push([e[k],e[g],e[l]]);k=g;for(l=g+1;l<c;k++,l++)e[k]=e[l];c--;h=2*c}}return b?f:d}}(),triangulateShape:function(a,b){function c(a){var b=a.length;2<b&&a[b-1].equals(a[0])&&a.pop()}function d(a,b,c){return a.x!==b.x?a.x<b.x?a.x<=c.x&&c.x<=b.x:b.x<=c.x&&c.x<=a.x:a.y<b.y?a.y<=c.y&&c.y<=b.y:b.y<=c.y&&c.y<=a.y}function e(a,b,c,e,f){var g=b.x-a.x,h=b.y-a.y,k=e.x-c.x,l=e.y-c.y,m=a.x-c.x,n=a.y-c.y,q=h*k-g*l,p=h*m-g*n;if(Math.abs(q)>Number.EPSILON){if(0<
+q){if(0>p||p>q)return[];k=l*m-k*n;if(0>k||k>q)return[]}else{if(0<p||p<q)return[];k=l*m-k*n;if(0<k||k<q)return[]}if(0===k)return!f||0!==p&&p!==q?[a]:[];if(k===q)return!f||0!==p&&p!==q?[b]:[];if(0===p)return[c];if(p===q)return[e];f=k/q;return[{x:a.x+f*g,y:a.y+f*h}]}if(0!==p||l*m!==k*n)return[];h=0===g&&0===h;k=0===k&&0===l;if(h&&k)return a.x!==c.x||a.y!==c.y?[]:[a];if(h)return d(c,e,a)?[a]:[];if(k)return d(a,b,c)?[c]:[];0!==g?(a.x<b.x?(g=a,k=a.x,h=b,a=b.x):(g=b,k=b.x,h=a,a=a.x),c.x<e.x?(b=c,q=c.x,l=
+e,c=e.x):(b=e,q=e.x,l=c,c=c.x)):(a.y<b.y?(g=a,k=a.y,h=b,a=b.y):(g=b,k=b.y,h=a,a=a.y),c.y<e.y?(b=c,q=c.y,l=e,c=e.y):(b=e,q=e.y,l=c,c=c.y));return k<=q?a<q?[]:a===q?f?[]:[b]:a<=c?[b,h]:[b,l]:k>c?[]:k===c?f?[]:[g]:a<=c?[g,h]:[g,l]}function f(a,b,c,d){var e=b.x-a.x,f=b.y-a.y;b=c.x-a.x;c=c.y-a.y;var g=d.x-a.x;d=d.y-a.y;a=e*c-f*b;e=e*d-f*g;return Math.abs(a)>Number.EPSILON?(b=g*c-d*b,0<a?0<=e&&0<=b:0<=e||0<=b):0<e}c(a);b.forEach(c);var g,h={},k=a.concat();var l=0;for(g=b.length;l<g;l++)Array.prototype.push.apply(k,
+b[l]);l=0;for(g=k.length;l<g;l++){var m=k[l].x+":"+k[l].y;void 0!==h[m]&&console.warn("THREE.ShapeUtils: Duplicate point",m,l);h[m]=l}l=function(a,b){function c(a,b){var c=h.length-1,d=a-1;0>d&&(d=c);var e=a+1;e>c&&(e=0);c=f(h[a],h[d],h[e],D[b]);if(!c)return!1;c=D.length-1;d=b-1;0>d&&(d=c);e=b+1;e>c&&(e=0);return(c=f(D[b],D[d],D[e],h[a]))?!0:!1}function d(a,b){var c;for(c=0;c<h.length;c++){var d=c+1;d%=h.length;d=e(a,b,h[c],h[d],!0);if(0<d.length)return!0}return!1}function g(a,c){var d,f;for(d=0;d<
+k.length;d++){var g=b[k[d]];for(f=0;f<g.length;f++){var h=f+1;h%=g.length;h=e(a,c,g[f],g[h],!0);if(0<h.length)return!0}}return!1}var h=a.concat(),k=[],l,m;a=[];var q,n=0;for(l=b.length;n<l;n++)k.push(n);var p=0;for(var t=2*k.length;0<k.length;){t--;if(0>t){console.log('THREE.ShapeUtils: Infinite Loop! Holes left:" + indepHoles.length + ", Probably Hole outside Shape!');break}for(m=p;m<h.length;m++){var y=h[m];l=-1;for(n=0;n<k.length;n++){var C=k[n];var A=y.x+":"+y.y+":"+C;if(void 0===a[A]){var D=
+b[C];for(q=0;q<D.length;q++)if(C=D[q],c(m,q)&&!d(y,C)&&!g(y,C)){l=q;k.splice(n,1);p=h.slice(0,m+1);C=h.slice(m);q=D.slice(l);var E=D.slice(0,l+1);h=p.concat(q).concat(E).concat(C);p=m;break}if(0<=l)break;a[A]=!0}}if(0<=l)break}}return h}(a,b);k=Ha.triangulate(l,!1);l=0;for(g=k.length;l<g;l++)for(b=k[l],a=0;3>a;a++)m=b[a].x+":"+b[a].y,m=h[m],void 0!==m&&(b[a]=m);return k.concat()},isClockWise:function(a){return 0>Ha.area(a)}};$a.prototype=Object.create(N.prototype);$a.prototype.constructor=$a;Ga.prototype=
+Object.create(D.prototype);Ga.prototype.constructor=Ga;Ga.prototype.getArrays=function(){var a=this.getAttribute("position"),a=a?Array.prototype.slice.call(a.array):[],b=this.getAttribute("uv"),b=b?Array.prototype.slice.call(b.array):[],c=this.index,c=c?Array.prototype.slice.call(c.array):[];return{position:a,uv:b,index:c}};Ga.prototype.addShapeList=function(a,b){var c=a.length;b.arrays=this.getArrays();for(var d=0;d<c;d++)this.addShape(a[d],b);this.setIndex(b.arrays.index);this.addAttribute("position",
+new y(b.arrays.position,3));this.addAttribute("uv",new y(b.arrays.uv,2))};Ga.prototype.addShape=function(a,b){function c(a,b,c){b||console.error("THREE.ExtrudeGeometry: vec does not exist");return b.clone().multiplyScalar(c).add(a)}function d(a,b,c){var d=a.x-b.x;var e=a.y-b.y;var f=c.x-a.x;var g=c.y-a.y,h=d*d+e*e;if(Math.abs(d*g-e*f)>Number.EPSILON){var k=Math.sqrt(h),l=Math.sqrt(f*f+g*g),h=b.x-e/k;b=b.y+d/k;g=((c.x-g/l-h)*g-(c.y+f/l-b)*f)/(d*g-e*f);f=h+d*g-a.x;d=b+e*g-a.y;e=f*f+d*d;if(2>=e)return new C(f,
+d);e=Math.sqrt(e/2)}else a=!1,d>Number.EPSILON?f>Number.EPSILON&&(a=!0):d<-Number.EPSILON?f<-Number.EPSILON&&(a=!0):Math.sign(e)===Math.sign(g)&&(a=!0),a?(f=-e,e=Math.sqrt(h)):(f=d,d=e,e=Math.sqrt(h/2));return new C(f/e,d/e)}function e(a,b){for(G=a.length;0<=--G;){var c=G;var d=G-1;0>d&&(d=a.length-1);var e,f=A+2*w;for(e=0;e<f;e++){var g=Z*e,l=Z*(e+1),q=b+d+g,n=b+d+l,l=b+c+l;h(b+c+g);h(q);h(l);h(q);h(n);h(l);g=m.length/3;g=E.generateSideWallUV(R,m,g-6,g-3,g-2,g-1);k(g[0]);k(g[1]);k(g[3]);k(g[1]);
+k(g[2]);k(g[3])}}}function f(a,b,c){r.push(a);r.push(b);r.push(c)}function g(a,b,c){h(a);h(b);h(c);a=m.length/3;a=E.generateTopUV(R,m,a-3,a-2,a-1);k(a[0]);k(a[1]);k(a[2])}function h(a){n.push(m.length/3);m.push(r[3*a+0]);m.push(r[3*a+1]);m.push(r[3*a+2])}function k(a){t.push(a.x);t.push(a.y)}var l=b.arrays?b.arrays:this.getArrays(),m=l.position,n=l.index,t=l.uv,r=[],l=void 0!==b.amount?b.amount:100,u=void 0!==b.bevelThickness?b.bevelThickness:6,v=void 0!==b.bevelSize?b.bevelSize:u-2,w=void 0!==b.bevelSegments?
+b.bevelSegments:3,x=void 0!==b.bevelEnabled?b.bevelEnabled:!0,z=void 0!==b.curveSegments?b.curveSegments:12,A=void 0!==b.steps?b.steps:1,B=b.extrudePath,D=!1,E=void 0!==b.UVGenerator?b.UVGenerator:$a.WorldUVGenerator;if(B){var H=B.getSpacedPoints(A);D=!0;x=!1;var N=void 0!==b.frames?b.frames:B.computeFrenetFrames(A,!1);var K=new p;var Q=new p;var P=new p}x||(v=u=w=0);var L,R=this,z=a.extractPoints(z);a=z.shape;var O=z.holes;if(!Ha.isClockWise(a)){a=a.reverse();var M=0;for(L=O.length;M<L;M++){var V=
+O[M];Ha.isClockWise(V)&&(O[M]=V.reverse())}}var S=Ha.triangulateShape(a,O),W=a;M=0;for(L=O.length;M<L;M++)V=O[M],a=a.concat(V);var aa,Z=a.length,U,ca=S.length,z=[],G=0;var X=W.length;var fa=X-1;for(aa=G+1;G<X;G++,fa++,aa++)fa===X&&(fa=0),aa===X&&(aa=0),z[G]=d(W[G],W[fa],W[aa]);var B=[],ea=z.concat();M=0;for(L=O.length;M<L;M++){V=O[M];var da=[];G=0;X=V.length;fa=X-1;for(aa=G+1;G<X;G++,fa++,aa++)fa===X&&(fa=0),aa===X&&(aa=0),da[G]=d(V[G],V[fa],V[aa]);B.push(da);ea=ea.concat(da)}for(fa=0;fa<w;fa++){X=
+fa/w;var ga=u*Math.cos(X*Math.PI/2);aa=v*Math.sin(X*Math.PI/2);G=0;for(X=W.length;G<X;G++){var T=c(W[G],z[G],aa);f(T.x,T.y,-ga)}M=0;for(L=O.length;M<L;M++)for(V=O[M],da=B[M],G=0,X=V.length;G<X;G++)T=c(V[G],da[G],aa),f(T.x,T.y,-ga)}aa=v;for(G=0;G<Z;G++)T=x?c(a[G],ea[G],aa):a[G],D?(Q.copy(N.normals[0]).multiplyScalar(T.x),K.copy(N.binormals[0]).multiplyScalar(T.y),P.copy(H[0]).add(Q).add(K),f(P.x,P.y,P.z)):f(T.x,T.y,0);for(X=1;X<=A;X++)for(G=0;G<Z;G++)T=x?c(a[G],ea[G],aa):a[G],D?(Q.copy(N.normals[X]).multiplyScalar(T.x),
+K.copy(N.binormals[X]).multiplyScalar(T.y),P.copy(H[X]).add(Q).add(K),f(P.x,P.y,P.z)):f(T.x,T.y,l/A*X);for(fa=w-1;0<=fa;fa--){X=fa/w;ga=u*Math.cos(X*Math.PI/2);aa=v*Math.sin(X*Math.PI/2);G=0;for(X=W.length;G<X;G++)T=c(W[G],z[G],aa),f(T.x,T.y,l+ga);M=0;for(L=O.length;M<L;M++)for(V=O[M],da=B[M],G=0,X=V.length;G<X;G++)T=c(V[G],da[G],aa),D?f(T.x,T.y+H[A-1].y,H[A-1].x+ga):f(T.x,T.y,l+ga)}(function(){var a=m.length/3;if(x){var c=0*Z;for(G=0;G<ca;G++)U=S[G],g(U[2]+c,U[1]+c,U[0]+c);c=Z*(A+2*w);for(G=0;G<
+ca;G++)U=S[G],g(U[0]+c,U[1]+c,U[2]+c)}else{for(G=0;G<ca;G++)U=S[G],g(U[2],U[1],U[0]);for(G=0;G<ca;G++)U=S[G],g(U[0]+Z*A,U[1]+Z*A,U[2]+Z*A)}R.addGroup(a,m.length/3-a,void 0!==b.material?b.material:0)})();(function(){var a=m.length/3,c=0;e(W,c);c+=W.length;M=0;for(L=O.length;M<L;M++)V=O[M],e(V,c),c+=V.length;R.addGroup(a,m.length/3-a,void 0!==b.extrudeMaterial?b.extrudeMaterial:1)})();b.arrays||(this.setIndex(n),this.addAttribute("position",new y(m,3)),this.addAttribute("uv",new y(b.arrays.uv,2)))};
+$a.WorldUVGenerator={generateTopUV:function(a,b,c,d,e){a=b[3*d];d=b[3*d+1];var f=b[3*e];e=b[3*e+1];return[new C(b[3*c],b[3*c+1]),new C(a,d),new C(f,e)]},generateSideWallUV:function(a,b,c,d,e,f){a=b[3*c];var g=b[3*c+1];c=b[3*c+2];var h=b[3*d],k=b[3*d+1];d=b[3*d+2];var l=b[3*e],m=b[3*e+1];e=b[3*e+2];var n=b[3*f],p=b[3*f+1];b=b[3*f+2];return.01>Math.abs(g-k)?[new C(a,1-c),new C(h,1-d),new C(l,1-e),new C(n,1-b)]:[new C(g,1-c),new C(k,1-d),new C(m,1-e),new C(p,1-b)]}};Qc.prototype=Object.create(N.prototype);
+Qc.prototype.constructor=Qc;$b.prototype=Object.create(Ga.prototype);$b.prototype.constructor=$b;Rc.prototype=Object.create(N.prototype);Rc.prototype.constructor=Rc;ob.prototype=Object.create(D.prototype);ob.prototype.constructor=ob;Sc.prototype=Object.create(N.prototype);Sc.prototype.constructor=Sc;ac.prototype=Object.create(D.prototype);ac.prototype.constructor=ac;Tc.prototype=Object.create(N.prototype);Tc.prototype.constructor=Tc;bc.prototype=Object.create(D.prototype);bc.prototype.constructor=
+bc;cc.prototype=Object.create(N.prototype);cc.prototype.constructor=cc;dc.prototype=Object.create(D.prototype);dc.prototype.constructor=dc;ec.prototype=Object.create(D.prototype);ec.prototype.constructor=ec;pb.prototype=Object.create(N.prototype);pb.prototype.constructor=pb;Sa.prototype=Object.create(D.prototype);Sa.prototype.constructor=Sa;Uc.prototype=Object.create(pb.prototype);Uc.prototype.constructor=Uc;Vc.prototype=Object.create(Sa.prototype);Vc.prototype.constructor=Vc;Wc.prototype=Object.create(N.prototype);
+Wc.prototype.constructor=Wc;fc.prototype=Object.create(D.prototype);fc.prototype.constructor=fc;var Ca=Object.freeze({WireframeGeometry:Sb,ParametricGeometry:Hc,ParametricBufferGeometry:Tb,TetrahedronGeometry:Jc,TetrahedronBufferGeometry:Ub,OctahedronGeometry:Kc,OctahedronBufferGeometry:nb,IcosahedronGeometry:Lc,IcosahedronBufferGeometry:Vb,DodecahedronGeometry:Mc,DodecahedronBufferGeometry:Wb,PolyhedronGeometry:Ic,PolyhedronBufferGeometry:qa,TubeGeometry:Nc,TubeBufferGeometry:Xb,TorusKnotGeometry:Oc,
+TorusKnotBufferGeometry:Yb,TorusGeometry:Pc,TorusBufferGeometry:Zb,TextGeometry:Qc,TextBufferGeometry:$b,SphereGeometry:Rc,SphereBufferGeometry:ob,RingGeometry:Sc,RingBufferGeometry:ac,PlaneGeometry:Ac,PlaneBufferGeometry:kb,LatheGeometry:Tc,LatheBufferGeometry:bc,ShapeGeometry:cc,ShapeBufferGeometry:dc,ExtrudeGeometry:$a,ExtrudeBufferGeometry:Ga,EdgesGeometry:ec,ConeGeometry:Uc,ConeBufferGeometry:Vc,CylinderGeometry:pb,CylinderBufferGeometry:Sa,CircleGeometry:Wc,CircleBufferGeometry:fc,BoxGeometry:Lb,
+BoxBufferGeometry:jb});gc.prototype=Object.create(Q.prototype);gc.prototype.constructor=gc;gc.prototype.isShadowMaterial=!0;hc.prototype=Object.create(oa.prototype);hc.prototype.constructor=hc;hc.prototype.isRawShaderMaterial=!0;Ma.prototype=Object.create(Q.prototype);Ma.prototype.constructor=Ma;Ma.prototype.isMeshStandardMaterial=!0;Ma.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.defines={STANDARD:""};this.color.copy(a.color);this.roughness=a.roughness;this.metalness=a.metalness;
+this.map=a.map;this.lightMap=a.lightMap;this.lightMapIntensity=a.lightMapIntensity;this.aoMap=a.aoMap;this.aoMapIntensity=a.aoMapIntensity;this.emissive.copy(a.emissive);this.emissiveMap=a.emissiveMap;this.emissiveIntensity=a.emissiveIntensity;this.bumpMap=a.bumpMap;this.bumpScale=a.bumpScale;this.normalMap=a.normalMap;this.normalScale.copy(a.normalScale);this.displacementMap=a.displacementMap;this.displacementScale=a.displacementScale;this.displacementBias=a.displacementBias;this.roughnessMap=a.roughnessMap;
+this.metalnessMap=a.metalnessMap;this.alphaMap=a.alphaMap;this.envMap=a.envMap;this.envMapIntensity=a.envMapIntensity;this.refractionRatio=a.refractionRatio;this.wireframe=a.wireframe;this.wireframeLinewidth=a.wireframeLinewidth;this.wireframeLinecap=a.wireframeLinecap;this.wireframeLinejoin=a.wireframeLinejoin;this.skinning=a.skinning;this.morphTargets=a.morphTargets;this.morphNormals=a.morphNormals;return this};qb.prototype=Object.create(Ma.prototype);qb.prototype.constructor=qb;qb.prototype.isMeshPhysicalMaterial=
+!0;qb.prototype.copy=function(a){Ma.prototype.copy.call(this,a);this.defines={PHYSICAL:""};this.reflectivity=a.reflectivity;this.clearCoat=a.clearCoat;this.clearCoatRoughness=a.clearCoatRoughness;return this};Ia.prototype=Object.create(Q.prototype);Ia.prototype.constructor=Ia;Ia.prototype.isMeshPhongMaterial=!0;Ia.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.color.copy(a.color);this.specular.copy(a.specular);this.shininess=a.shininess;this.map=a.map;this.lightMap=a.lightMap;this.lightMapIntensity=
+a.lightMapIntensity;this.aoMap=a.aoMap;this.aoMapIntensity=a.aoMapIntensity;this.emissive.copy(a.emissive);this.emissiveMap=a.emissiveMap;this.emissiveIntensity=a.emissiveIntensity;this.bumpMap=a.bumpMap;this.bumpScale=a.bumpScale;this.normalMap=a.normalMap;this.normalScale.copy(a.normalScale);this.displacementMap=a.displacementMap;this.displacementScale=a.displacementScale;this.displacementBias=a.displacementBias;this.specularMap=a.specularMap;this.alphaMap=a.alphaMap;this.envMap=a.envMap;this.combine=
+a.combine;this.reflectivity=a.reflectivity;this.refractionRatio=a.refractionRatio;this.wireframe=a.wireframe;this.wireframeLinewidth=a.wireframeLinewidth;this.wireframeLinecap=a.wireframeLinecap;this.wireframeLinejoin=a.wireframeLinejoin;this.skinning=a.skinning;this.morphTargets=a.morphTargets;this.morphNormals=a.morphNormals;return this};rb.prototype=Object.create(Ia.prototype);rb.prototype.constructor=rb;rb.prototype.isMeshToonMaterial=!0;rb.prototype.copy=function(a){Ia.prototype.copy.call(this,
+a);this.gradientMap=a.gradientMap;return this};sb.prototype=Object.create(Q.prototype);sb.prototype.constructor=sb;sb.prototype.isMeshNormalMaterial=!0;sb.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.bumpMap=a.bumpMap;this.bumpScale=a.bumpScale;this.normalMap=a.normalMap;this.normalScale.copy(a.normalScale);this.displacementMap=a.displacementMap;this.displacementScale=a.displacementScale;this.displacementBias=a.displacementBias;this.wireframe=a.wireframe;this.wireframeLinewidth=a.wireframeLinewidth;
+this.skinning=a.skinning;this.morphTargets=a.morphTargets;this.morphNormals=a.morphNormals;return this};tb.prototype=Object.create(Q.prototype);tb.prototype.constructor=tb;tb.prototype.isMeshLambertMaterial=!0;tb.prototype.copy=function(a){Q.prototype.copy.call(this,a);this.color.copy(a.color);this.map=a.map;this.lightMap=a.lightMap;this.lightMapIntensity=a.lightMapIntensity;this.aoMap=a.aoMap;this.aoMapIntensity=a.aoMapIntensity;this.emissive.copy(a.emissive);this.emissiveMap=a.emissiveMap;this.emissiveIntensity=
+a.emissiveIntensity;this.specularMap=a.specularMap;this.alphaMap=a.alphaMap;this.envMap=a.envMap;this.combine=a.combine;this.reflectivity=a.reflectivity;this.refractionRatio=a.refractionRatio;this.wireframe=a.wireframe;this.wireframeLinewidth=a.wireframeLinewidth;this.wireframeLinecap=a.wireframeLinecap;this.wireframeLinejoin=a.wireframeLinejoin;this.skinning=a.skinning;this.morphTargets=a.morphTargets;this.morphNormals=a.morphNormals;return this};ub.prototype=Object.create(O.prototype);ub.prototype.constructor=
+ub;ub.prototype.isLineDashedMaterial=!0;ub.prototype.copy=function(a){O.prototype.copy.call(this,a);this.scale=a.scale;this.dashSize=a.dashSize;this.gapSize=a.gapSize;return this};var tg=Object.freeze({ShadowMaterial:gc,SpriteMaterial:Za,RawShaderMaterial:hc,ShaderMaterial:oa,PointsMaterial:Ba,MeshPhysicalMaterial:qb,MeshStandardMaterial:Ma,MeshPhongMaterial:Ia,MeshToonMaterial:rb,MeshNormalMaterial:sb,MeshLambertMaterial:tb,MeshDepthMaterial:Wa,MeshDistanceMaterial:Xa,MeshBasicMaterial:va,LineDashedMaterial:ub,
+LineBasicMaterial:O,Material:Q}),jd={enabled:!1,files:{},add:function(a,b){!1!==this.enabled&&(this.files[a]=b)},get:function(a){if(!1!==this.enabled)return this.files[a]},remove:function(a){delete this.files[a]},clear:function(){this.files={}}},wa=new Yd,Ta={};Object.assign(Ja.prototype,{load:function(a,b,c,d){void 0===a&&(a="");void 0!==this.path&&(a=this.path+a);a=this.manager.resolveURL(a);var e=this,f=jd.get(a);if(void 0!==f)return e.manager.itemStart(a),setTimeout(function(){b&&b(f);e.manager.itemEnd(a)},
+0),f;if(void 0!==Ta[a])Ta[a].push({onLoad:b,onProgress:c,onError:d});else{var g=a.match(/^data:(.*?)(;base64)?,(.*)$/);if(g){c=g[1];var h=!!g[2],g=g[3],g=window.decodeURIComponent(g);h&&(g=window.atob(g));try{var k=(this.responseType||"").toLowerCase();switch(k){case "arraybuffer":case "blob":for(var l=new Uint8Array(g.length),h=0;h<g.length;h++)l[h]=g.charCodeAt(h);var m="blob"===k?new Blob([l.buffer],{type:c}):l.buffer;break;case "document":m=(new DOMParser).parseFromString(g,c);break;case "json":m=
+JSON.parse(g);break;default:m=g}window.setTimeout(function(){b&&b(m);e.manager.itemEnd(a)},0)}catch(t){window.setTimeout(function(){d&&d(t);e.manager.itemEnd(a);e.manager.itemError(a)},0)}}else{Ta[a]=[];Ta[a].push({onLoad:b,onProgress:c,onError:d});var n=new XMLHttpRequest;n.open("GET",a,!0);n.addEventListener("load",function(b){var c=b.target.response;jd.add(a,c);var d=Ta[a];delete Ta[a];if(200===this.status){for(var f=0,g=d.length;f<g;f++){var h=d[f];if(h.onLoad)h.onLoad(c)}e.manager.itemEnd(a)}else if(0===
+this.status){console.warn("THREE.FileLoader: HTTP Status 0 received.");f=0;for(g=d.length;f<g;f++)if(h=d[f],h.onLoad)h.onLoad(c);e.manager.itemEnd(a)}else{f=0;for(g=d.length;f<g;f++)if(h=d[f],h.onError)h.onError(b);e.manager.itemEnd(a);e.manager.itemError(a)}},!1);n.addEventListener("progress",function(b){for(var c=Ta[a],d=0,e=c.length;d<e;d++){var f=c[d];if(f.onProgress)f.onProgress(b)}},!1);n.addEventListener("error",function(b){var c=Ta[a];delete Ta[a];for(var d=0,f=c.length;d<f;d++){var g=c[d];
+if(g.onError)g.onError(b)}e.manager.itemEnd(a);e.manager.itemError(a)},!1);void 0!==this.responseType&&(n.responseType=this.responseType);void 0!==this.withCredentials&&(n.withCredentials=this.withCredentials);n.overrideMimeType&&n.overrideMimeType(void 0!==this.mimeType?this.mimeType:"text/plain");for(h in this.requestHeader)n.setRequestHeader(h,this.requestHeader[h]);n.send(null)}e.manager.itemStart(a);return n}},setPath:function(a){this.path=a;return this},setResponseType:function(a){this.responseType=
+a;return this},setWithCredentials:function(a){this.withCredentials=a;return this},setMimeType:function(a){this.mimeType=a;return this},setRequestHeader:function(a){this.requestHeader=a;return this}});Object.assign(Qe.prototype,{load:function(a,b,c,d){function e(e){l.load(a[e],function(a){a=g._parser(a,!0);h[e]={width:a.width,height:a.height,format:a.format,mipmaps:a.mipmaps};f+=1;6===f&&(1===a.mipmapCount&&(k.minFilter=1006),k.format=a.format,k.needsUpdate=!0,b&&b(k))},c,d)}var f,g=this,h=[],k=new Rb;
+k.image=h;var l=new Ja(this.manager);l.setPath(this.path);l.setResponseType("arraybuffer");if(Array.isArray(a))for(var m=f=0,n=a.length;m<n;++m)e(m);else l.load(a,function(a){a=g._parser(a,!0);if(a.isCubemap)for(var c=a.mipmaps.length/a.mipmapCount,d=0;d<c;d++){h[d]={mipmaps:[]};for(var e=0;e<a.mipmapCount;e++)h[d].mipmaps.push(a.mipmaps[d*a.mipmapCount+e]),h[d].format=a.format,h[d].width=a.width,h[d].height=a.height}else k.image.width=a.width,k.image.height=a.height,k.mipmaps=a.mipmaps;1===a.mipmapCount&&
+(k.minFilter=1006);k.format=a.format;k.needsUpdate=!0;b&&b(k)},c,d);return k},setPath:function(a){this.path=a;return this}});Object.assign(Zd.prototype,{load:function(a,b,c,d){var e=this,f=new fb,g=new Ja(this.manager);g.setResponseType("arraybuffer");g.load(a,function(a){if(a=e._parser(a))void 0!==a.image?f.image=a.image:void 0!==a.data&&(f.image.width=a.width,f.image.height=a.height,f.image.data=a.data),f.wrapS=void 0!==a.wrapS?a.wrapS:1001,f.wrapT=void 0!==a.wrapT?a.wrapT:1001,f.magFilter=void 0!==
+a.magFilter?a.magFilter:1006,f.minFilter=void 0!==a.minFilter?a.minFilter:1008,f.anisotropy=void 0!==a.anisotropy?a.anisotropy:1,void 0!==a.format&&(f.format=a.format),void 0!==a.type&&(f.type=a.type),void 0!==a.mipmaps&&(f.mipmaps=a.mipmaps),1===a.mipmapCount&&(f.minFilter=1006),f.needsUpdate=!0,b&&b(f,a)},c,d);return f}});Object.assign(Xc.prototype,{crossOrigin:"Anonymous",load:function(a,b,c,d){void 0===a&&(a="");void 0!==this.path&&(a=this.path+a);a=this.manager.resolveURL(a);var e=this,f=jd.get(a);
+if(void 0!==f)return e.manager.itemStart(a),setTimeout(function(){b&&b(f);e.manager.itemEnd(a)},0),f;c=document.createElementNS("http://www.w3.org/1999/xhtml","img");c.addEventListener("load",function(){jd.add(a,this);b&&b(this);e.manager.itemEnd(a)},!1);c.addEventListener("error",function(b){d&&d(b);e.manager.itemEnd(a);e.manager.itemError(a)},!1);"data:"!==a.substr(0,5)&&void 0!==this.crossOrigin&&(c.crossOrigin=this.crossOrigin);e.manager.itemStart(a);c.src=a;return c},setCrossOrigin:function(a){this.crossOrigin=
+a;return this},setPath:function(a){this.path=a;return this}});Object.assign($d.prototype,{crossOrigin:"Anonymous",load:function(a,b,c,d){function e(c){g.load(a[c],function(a){f.images[c]=a;h++;6===h&&(f.needsUpdate=!0,b&&b(f))},void 0,d)}var f=new Ua,g=new Xc(this.manager);g.setCrossOrigin(this.crossOrigin);g.setPath(this.path);var h=0;for(c=0;c<a.length;++c)e(c);return f},setCrossOrigin:function(a){this.crossOrigin=a;return this},setPath:function(a){this.path=a;return this}});Object.assign(td.prototype,
+{crossOrigin:"Anonymous",load:function(a,b,c,d){var e=new Xc(this.manager);e.setCrossOrigin(this.crossOrigin);e.setPath(this.path);var f=new ea;f.image=e.load(a,function(){var c=0<a.search(/\.(jpg|jpeg)$/)||0===a.search(/^data\:image\/jpeg/);f.format=c?1022:1023;f.needsUpdate=!0;void 0!==b&&b(f)},c,d);return f},setCrossOrigin:function(a){this.crossOrigin=a;return this},setPath:function(a){this.path=a;return this}});ga.prototype=Object.assign(Object.create(A.prototype),{constructor:ga,isLight:!0,copy:function(a){A.prototype.copy.call(this,
+a);this.color.copy(a.color);this.intensity=a.intensity;return this},toJSON:function(a){a=A.prototype.toJSON.call(this,a);a.object.color=this.color.getHex();a.object.intensity=this.intensity;void 0!==this.groundColor&&(a.object.groundColor=this.groundColor.getHex());void 0!==this.distance&&(a.object.distance=this.distance);void 0!==this.angle&&(a.object.angle=this.angle);void 0!==this.decay&&(a.object.decay=this.decay);void 0!==this.penumbra&&(a.object.penumbra=this.penumbra);void 0!==this.shadow&&
+(a.object.shadow=this.shadow.toJSON());return a}});ud.prototype=Object.assign(Object.create(ga.prototype),{constructor:ud,isHemisphereLight:!0,copy:function(a){ga.prototype.copy.call(this,a);this.groundColor.copy(a.groundColor);return this}});Object.assign(vb.prototype,{copy:function(a){this.camera=a.camera.clone();this.bias=a.bias;this.radius=a.radius;this.mapSize.copy(a.mapSize);return this},clone:function(){return(new this.constructor).copy(this)},toJSON:function(){var a={};0!==this.bias&&(a.bias=
+this.bias);1!==this.radius&&(a.radius=this.radius);if(512!==this.mapSize.x||512!==this.mapSize.y)a.mapSize=this.mapSize.toArray();a.camera=this.camera.toJSON(!1).object;delete a.camera.matrix;return a}});vd.prototype=Object.assign(Object.create(vb.prototype),{constructor:vd,isSpotLightShadow:!0,update:function(a){var b=this.camera,c=2*R.RAD2DEG*a.angle,d=this.mapSize.width/this.mapSize.height;a=a.distance||b.far;if(c!==b.fov||d!==b.aspect||a!==b.far)b.fov=c,b.aspect=d,b.far=a,b.updateProjectionMatrix()}});
+wd.prototype=Object.assign(Object.create(ga.prototype),{constructor:wd,isSpotLight:!0,copy:function(a){ga.prototype.copy.call(this,a);this.distance=a.distance;this.angle=a.angle;this.penumbra=a.penumbra;this.decay=a.decay;this.target=a.target.clone();this.shadow=a.shadow.clone();return this}});xd.prototype=Object.assign(Object.create(ga.prototype),{constructor:xd,isPointLight:!0,copy:function(a){ga.prototype.copy.call(this,a);this.distance=a.distance;this.decay=a.decay;this.shadow=a.shadow.clone();
+return this}});yd.prototype=Object.assign(Object.create(vb.prototype),{constructor:yd});zd.prototype=Object.assign(Object.create(ga.prototype),{constructor:zd,isDirectionalLight:!0,copy:function(a){ga.prototype.copy.call(this,a);this.target=a.target.clone();this.shadow=a.shadow.clone();return this}});Ad.prototype=Object.assign(Object.create(ga.prototype),{constructor:Ad,isAmbientLight:!0});Bd.prototype=Object.assign(Object.create(ga.prototype),{constructor:Bd,isRectAreaLight:!0,copy:function(a){ga.prototype.copy.call(this,
+a);this.width=a.width;this.height=a.height;return this},toJSON:function(a){a=ga.prototype.toJSON.call(this,a);a.object.width=this.width;a.object.height=this.height;return a}});var T={arraySlice:function(a,b,c){return T.isTypedArray(a)?new a.constructor(a.subarray(b,void 0!==c?c:a.length)):a.slice(b,c)},convertArray:function(a,b,c){return!a||!c&&a.constructor===b?a:"number"===typeof b.BYTES_PER_ELEMENT?new b(a):Array.prototype.slice.call(a)},isTypedArray:function(a){return ArrayBuffer.isView(a)&&!(a instanceof
+DataView)},getKeyframeOrder:function(a){for(var b=a.length,c=Array(b),d=0;d!==b;++d)c[d]=d;c.sort(function(b,c){return a[b]-a[c]});return c},sortedArray:function(a,b,c){for(var d=a.length,e=new a.constructor(d),f=0,g=0;g!==d;++f)for(var h=c[f]*b,k=0;k!==b;++k)e[g++]=a[h+k];return e},flattenJSON:function(a,b,c,d){for(var e=1,f=a[0];void 0!==f&&void 0===f[d];)f=a[e++];if(void 0!==f){var g=f[d];if(void 0!==g)if(Array.isArray(g)){do g=f[d],void 0!==g&&(b.push(f.time),c.push.apply(c,g)),f=a[e++];while(void 0!==
+f)}else if(void 0!==g.toArray){do g=f[d],void 0!==g&&(b.push(f.time),g.toArray(c,c.length)),f=a[e++];while(void 0!==f)}else{do g=f[d],void 0!==g&&(b.push(f.time),c.push(g)),f=a[e++];while(void 0!==f)}}}};Object.assign(xa.prototype,{evaluate:function(a){var b=this.parameterPositions,c=this._cachedIndex,d=b[c],e=b[c-1];a:{b:{c:{d:if(!(a<d)){for(var f=c+2;;){if(void 0===d){if(a<e)break d;this._cachedIndex=c=b.length;return this.afterEnd_(c-1,a,e)}if(c===f)break;e=d;d=b[++c];if(a<d)break b}d=b.length;
+break c}if(a>=e)break a;else{f=b[1];a<f&&(c=2,e=f);for(f=c-2;;){if(void 0===e)return this._cachedIndex=0,this.beforeStart_(0,a,d);if(c===f)break;d=e;e=b[--c-1];if(a>=e)break b}d=c;c=0}}for(;c<d;)e=c+d>>>1,a<b[e]?d=e:c=e+1;d=b[c];e=b[c-1];if(void 0===e)return this._cachedIndex=0,this.beforeStart_(0,a,d);if(void 0===d)return this._cachedIndex=c=b.length,this.afterEnd_(c-1,e,a)}this._cachedIndex=c;this.intervalChanged_(c,e,d)}return this.interpolate_(c,e,a,d)},settings:null,DefaultSettings_:{},getSettings_:function(){return this.settings||
+this.DefaultSettings_},copySampleValue_:function(a){var b=this.resultBuffer,c=this.sampleValues,d=this.valueSize;a*=d;for(var e=0;e!==d;++e)b[e]=c[a+e];return b},interpolate_:function(){throw Error("call to abstract method");},intervalChanged_:function(){}});Object.assign(xa.prototype,{beforeStart_:xa.prototype.copySampleValue_,afterEnd_:xa.prototype.copySampleValue_});Cd.prototype=Object.assign(Object.create(xa.prototype),{constructor:Cd,DefaultSettings_:{endingStart:2400,endingEnd:2400},intervalChanged_:function(a,
+b,c){var d=this.parameterPositions,e=a-2,f=a+1,g=d[e],h=d[f];if(void 0===g)switch(this.getSettings_().endingStart){case 2401:e=a;g=2*b-c;break;case 2402:e=d.length-2;g=b+d[e]-d[e+1];break;default:e=a,g=c}if(void 0===h)switch(this.getSettings_().endingEnd){case 2401:f=a;h=2*c-b;break;case 2402:f=1;h=c+d[1]-d[0];break;default:f=a-1,h=b}a=.5*(c-b);d=this.valueSize;this._weightPrev=a/(b-g);this._weightNext=a/(h-c);this._offsetPrev=e*d;this._offsetNext=f*d},interpolate_:function(a,b,c,d){var e=this.resultBuffer,
+f=this.sampleValues,g=this.valueSize;a*=g;var h=a-g,k=this._offsetPrev,l=this._offsetNext,m=this._weightPrev,n=this._weightNext,p=(c-b)/(d-b);c=p*p;d=c*p;b=-m*d+2*m*c-m*p;m=(1+m)*d+(-1.5-2*m)*c+(-.5+m)*p+1;p=(-1-n)*d+(1.5+n)*c+.5*p;n=n*d-n*c;for(c=0;c!==g;++c)e[c]=b*f[k+c]+m*f[h+c]+p*f[a+c]+n*f[l+c];return e}});Yc.prototype=Object.assign(Object.create(xa.prototype),{constructor:Yc,interpolate_:function(a,b,c,d){var e=this.resultBuffer,f=this.sampleValues,g=this.valueSize;a*=g;var h=a-g;b=(c-b)/(d-
+b);c=1-b;for(d=0;d!==g;++d)e[d]=f[h+d]*c+f[a+d]*b;return e}});Dd.prototype=Object.assign(Object.create(xa.prototype),{constructor:Dd,interpolate_:function(a){return this.copySampleValue_(a-1)}});var eb={TimeBufferType:Float32Array,ValueBufferType:Float32Array,DefaultInterpolation:2301,InterpolantFactoryMethodDiscrete:function(a){return new Dd(this.times,this.values,this.getValueSize(),a)},InterpolantFactoryMethodLinear:function(a){return new Yc(this.times,this.values,this.getValueSize(),a)},InterpolantFactoryMethodSmooth:function(a){return new Cd(this.times,
+this.values,this.getValueSize(),a)},setInterpolation:function(a){switch(a){case 2300:var b=this.InterpolantFactoryMethodDiscrete;break;case 2301:b=this.InterpolantFactoryMethodLinear;break;case 2302:b=this.InterpolantFactoryMethodSmooth}if(void 0===b){b="unsupported interpolation for "+this.ValueTypeName+" keyframe track named "+this.name;if(void 0===this.createInterpolant)if(a!==this.DefaultInterpolation)this.setInterpolation(this.DefaultInterpolation);else throw Error(b);console.warn("THREE.KeyframeTrackPrototype:",
+b)}else this.createInterpolant=b},getInterpolation:function(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return 2300;case this.InterpolantFactoryMethodLinear:return 2301;case this.InterpolantFactoryMethodSmooth:return 2302}},getValueSize:function(){return this.values.length/this.times.length},shift:function(a){if(0!==a)for(var b=this.times,c=0,d=b.length;c!==d;++c)b[c]+=a;return this},scale:function(a){if(1!==a)for(var b=this.times,c=0,d=b.length;c!==d;++c)b[c]*=a;return this},
+trim:function(a,b){for(var c=this.times,d=c.length,e=0,f=d-1;e!==d&&c[e]<a;)++e;for(;-1!==f&&c[f]>b;)--f;++f;if(0!==e||f!==d)e>=f&&(f=Math.max(f,1),e=f-1),a=this.getValueSize(),this.times=T.arraySlice(c,e,f),this.values=T.arraySlice(this.values,e*a,f*a);return this},validate:function(){var a=!0,b=this.getValueSize();0!==b-Math.floor(b)&&(console.error("THREE.KeyframeTrackPrototype: Invalid value size in track.",this),a=!1);var c=this.times,b=this.values,d=c.length;0===d&&(console.error("THREE.KeyframeTrackPrototype: Track is empty.",
+this),a=!1);for(var e=null,f=0;f!==d;f++){var g=c[f];if("number"===typeof g&&isNaN(g)){console.error("THREE.KeyframeTrackPrototype: Time is not a valid number.",this,f,g);a=!1;break}if(null!==e&&e>g){console.error("THREE.KeyframeTrackPrototype: Out of order keys.",this,f,g,e);a=!1;break}e=g}if(void 0!==b&&T.isTypedArray(b))for(f=0,c=b.length;f!==c;++f)if(d=b[f],isNaN(d)){console.error("THREE.KeyframeTrackPrototype: Value is not a valid number.",this,f,d);a=!1;break}return a},optimize:function(){for(var a,
+b,c=this.times,d=this.values,e=this.getValueSize(),f=2302===this.getInterpolation(),g=1,h=c.length-1,k=1;k<h;++k){a=!1;var l=c[k];if(l!==c[k+1]&&(1!==k||l!==l[0]))if(f)a=!0;else{b=k*e;for(var m=b-e,n=b+e,l=0;l!==e;++l){var p=d[b+l];if(p!==d[m+l]||p!==d[n+l]){a=!0;break}}}if(a){if(k!==g)for(c[g]=c[k],b=k*e,a=g*e,l=0;l!==e;++l)d[a+l]=d[b+l];++g}}if(0<h){c[g]=c[h];b=h*e;a=g*e;for(l=0;l!==e;++l)d[a+l]=d[b+l];++g}g!==c.length&&(this.times=T.arraySlice(c,0,g),this.values=T.arraySlice(d,0,g*e));return this}};
+ic.prototype=Object.assign(Object.create(eb),{constructor:ic,ValueTypeName:"vector"});Ed.prototype=Object.assign(Object.create(xa.prototype),{constructor:Ed,interpolate_:function(a,b,c,d){var e=this.resultBuffer,f=this.sampleValues,g=this.valueSize;a*=g;b=(c-b)/(d-b);for(c=a+g;a!==c;a+=4)Z.slerpFlat(e,0,f,a-g,f,a,b);return e}});Zc.prototype=Object.assign(Object.create(eb),{constructor:Zc,ValueTypeName:"quaternion",DefaultInterpolation:2301,InterpolantFactoryMethodLinear:function(a){return new Ed(this.times,
+this.values,this.getValueSize(),a)},InterpolantFactoryMethodSmooth:void 0});jc.prototype=Object.assign(Object.create(eb),{constructor:jc,ValueTypeName:"number"});Fd.prototype=Object.assign(Object.create(eb),{constructor:Fd,ValueTypeName:"string",ValueBufferType:Array,DefaultInterpolation:2300,InterpolantFactoryMethodLinear:void 0,InterpolantFactoryMethodSmooth:void 0});Gd.prototype=Object.assign(Object.create(eb),{constructor:Gd,ValueTypeName:"bool",ValueBufferType:Array,DefaultInterpolation:2300,
+InterpolantFactoryMethodLinear:void 0,InterpolantFactoryMethodSmooth:void 0});Hd.prototype=Object.assign(Object.create(eb),{constructor:Hd,ValueTypeName:"color"});xb.prototype=eb;eb.constructor=xb;Object.assign(xb,{parse:function(a){if(void 0===a.type)throw Error("track type undefined, can not parse");var b=xb._getTrackTypeForValueTypeName(a.type);if(void 0===a.times){var c=[],d=[];T.flattenJSON(a.keys,c,d,"value");a.times=c;a.values=d}return void 0!==b.parse?b.parse(a):new b(a.name,a.times,a.values,
+a.interpolation)},toJSON:function(a){var b=a.constructor;if(void 0!==b.toJSON)b=b.toJSON(a);else{var b={name:a.name,times:T.convertArray(a.times,Array),values:T.convertArray(a.values,Array)},c=a.getInterpolation();c!==a.DefaultInterpolation&&(b.interpolation=c)}b.type=a.ValueTypeName;return b},_getTrackTypeForValueTypeName:function(a){switch(a.toLowerCase()){case "scalar":case "double":case "float":case "number":case "integer":return jc;case "vector":case "vector2":case "vector3":case "vector4":return ic;
+case "color":return Hd;case "quaternion":return Zc;case "bool":case "boolean":return Gd;case "string":return Fd}throw Error("Unsupported typeName: "+a);}});Object.assign(ka,{parse:function(a){for(var b=[],c=a.tracks,d=1/(a.fps||1),e=0,f=c.length;e!==f;++e)b.push(xb.parse(c[e]).scale(d));return new ka(a.name,a.duration,b)},toJSON:function(a){var b=[],c=a.tracks;a={name:a.name,duration:a.duration,tracks:b};for(var d=0,e=c.length;d!==e;++d)b.push(xb.toJSON(c[d]));return a},CreateFromMorphTargetSequence:function(a,
+b,c,d){for(var e=b.length,f=[],g=0;g<e;g++){var h=[],k=[];h.push((g+e-1)%e,g,(g+1)%e);k.push(0,1,0);var l=T.getKeyframeOrder(h),h=T.sortedArray(h,1,l),k=T.sortedArray(k,1,l);d||0!==h[0]||(h.push(e),k.push(k[0]));f.push((new jc(".morphTargetInfluences["+b[g].name+"]",h,k)).scale(1/c))}return new ka(a,-1,f)},findByName:function(a,b){var c=a;Array.isArray(a)||(c=a.geometry&&a.geometry.animations||a.animations);for(a=0;a<c.length;a++)if(c[a].name===b)return c[a];return null},CreateClipsFromMorphTargetSequences:function(a,
+b,c){for(var d,e={},f=/^([\w-]*?)([\d]+)$/,g=0,h=a.length;g<h;g++){var k=a[g],l=k.name.match(f);l&&1<l.length&&(d=l[1],(l=e[d])||(e[d]=l=[]),l.push(k))}a=[];for(d in e)a.push(ka.CreateFromMorphTargetSequence(d,e[d],b,c));return a},parseAnimation:function(a,b){if(!a)return console.error("THREE.AnimationClip: No animation in JSONLoader data."),null;var c=function(a,b,c,d,e){if(0!==c.length){var f=[],g=[];T.flattenJSON(c,f,g,d);0!==f.length&&e.push(new a(b,f,g))}},d=[],e=a.name||"default",f=a.length||
+-1,g=a.fps||30;a=a.hierarchy||[];for(var h=0;h<a.length;h++){var k=a[h].keys;if(k&&0!==k.length)if(k[0].morphTargets){for(var f={},l=0;l<k.length;l++)if(k[l].morphTargets)for(var m=0;m<k[l].morphTargets.length;m++)f[k[l].morphTargets[m]]=-1;for(var n in f){for(var p=[],r=[],m=0;m!==k[l].morphTargets.length;++m){var u=k[l];p.push(u.time);r.push(u.morphTarget===n?1:0)}d.push(new jc(".morphTargetInfluence["+n+"]",p,r))}f=f.length*(g||1)}else l=".bones["+b[h].name+"]",c(ic,l+".position",k,"pos",d),c(Zc,
+l+".quaternion",k,"rot",d),c(ic,l+".scale",k,"scl",d)}return 0===d.length?null:new ka(e,f,d)}});Object.assign(ka.prototype,{resetDuration:function(){for(var a=0,b=0,c=this.tracks.length;b!==c;++b)var d=this.tracks[b],a=Math.max(a,d.times[d.times.length-1]);this.duration=a},trim:function(){for(var a=0;a<this.tracks.length;a++)this.tracks[a].trim(0,this.duration);return this},optimize:function(){for(var a=0;a<this.tracks.length;a++)this.tracks[a].optimize();return this}});Object.assign(Id.prototype,
+{load:function(a,b,c,d){var e=this;(new Ja(e.manager)).load(a,function(a){b(e.parse(JSON.parse(a)))},c,d)},setTextures:function(a){this.textures=a},parse:function(a){function b(a){void 0===c[a]&&console.warn("THREE.MaterialLoader: Undefined texture",a);return c[a]}var c=this.textures,d=new tg[a.type];void 0!==a.uuid&&(d.uuid=a.uuid);void 0!==a.name&&(d.name=a.name);void 0!==a.color&&d.color.setHex(a.color);void 0!==a.roughness&&(d.roughness=a.roughness);void 0!==a.metalness&&(d.metalness=a.metalness);
+void 0!==a.emissive&&d.emissive.setHex(a.emissive);void 0!==a.specular&&d.specular.setHex(a.specular);void 0!==a.shininess&&(d.shininess=a.shininess);void 0!==a.clearCoat&&(d.clearCoat=a.clearCoat);void 0!==a.clearCoatRoughness&&(d.clearCoatRoughness=a.clearCoatRoughness);void 0!==a.uniforms&&(d.uniforms=a.uniforms);void 0!==a.vertexShader&&(d.vertexShader=a.vertexShader);void 0!==a.fragmentShader&&(d.fragmentShader=a.fragmentShader);void 0!==a.vertexColors&&(d.vertexColors=a.vertexColors);void 0!==
+a.fog&&(d.fog=a.fog);void 0!==a.flatShading&&(d.flatShading=a.flatShading);void 0!==a.blending&&(d.blending=a.blending);void 0!==a.side&&(d.side=a.side);void 0!==a.opacity&&(d.opacity=a.opacity);void 0!==a.transparent&&(d.transparent=a.transparent);void 0!==a.alphaTest&&(d.alphaTest=a.alphaTest);void 0!==a.depthTest&&(d.depthTest=a.depthTest);void 0!==a.depthWrite&&(d.depthWrite=a.depthWrite);void 0!==a.colorWrite&&(d.colorWrite=a.colorWrite);void 0!==a.wireframe&&(d.wireframe=a.wireframe);void 0!==
+a.wireframeLinewidth&&(d.wireframeLinewidth=a.wireframeLinewidth);void 0!==a.wireframeLinecap&&(d.wireframeLinecap=a.wireframeLinecap);void 0!==a.wireframeLinejoin&&(d.wireframeLinejoin=a.wireframeLinejoin);void 0!==a.rotation&&(d.rotation=a.rotation);1!==a.linewidth&&(d.linewidth=a.linewidth);void 0!==a.dashSize&&(d.dashSize=a.dashSize);void 0!==a.gapSize&&(d.gapSize=a.gapSize);void 0!==a.scale&&(d.scale=a.scale);void 0!==a.skinning&&(d.skinning=a.skinning);void 0!==a.morphTargets&&(d.morphTargets=
+a.morphTargets);void 0!==a.dithering&&(d.dithering=a.dithering);void 0!==a.visible&&(d.visible=a.visible);void 0!==a.userData&&(d.userData=a.userData);void 0!==a.shading&&(d.flatShading=1===a.shading);void 0!==a.size&&(d.size=a.size);void 0!==a.sizeAttenuation&&(d.sizeAttenuation=a.sizeAttenuation);void 0!==a.map&&(d.map=b(a.map));void 0!==a.alphaMap&&(d.alphaMap=b(a.alphaMap),d.transparent=!0);void 0!==a.bumpMap&&(d.bumpMap=b(a.bumpMap));void 0!==a.bumpScale&&(d.bumpScale=a.bumpScale);void 0!==a.normalMap&&
+(d.normalMap=b(a.normalMap));if(void 0!==a.normalScale){var e=a.normalScale;!1===Array.isArray(e)&&(e=[e,e]);d.normalScale=(new C).fromArray(e)}void 0!==a.displacementMap&&(d.displacementMap=b(a.displacementMap));void 0!==a.displacementScale&&(d.displacementScale=a.displacementScale);void 0!==a.displacementBias&&(d.displacementBias=a.displacementBias);void 0!==a.roughnessMap&&(d.roughnessMap=b(a.roughnessMap));void 0!==a.metalnessMap&&(d.metalnessMap=b(a.metalnessMap));void 0!==a.emissiveMap&&(d.emissiveMap=
+b(a.emissiveMap));void 0!==a.emissiveIntensity&&(d.emissiveIntensity=a.emissiveIntensity);void 0!==a.specularMap&&(d.specularMap=b(a.specularMap));void 0!==a.envMap&&(d.envMap=b(a.envMap));void 0!==a.reflectivity&&(d.reflectivity=a.reflectivity);void 0!==a.lightMap&&(d.lightMap=b(a.lightMap));void 0!==a.lightMapIntensity&&(d.lightMapIntensity=a.lightMapIntensity);void 0!==a.aoMap&&(d.aoMap=b(a.aoMap));void 0!==a.aoMapIntensity&&(d.aoMapIntensity=a.aoMapIntensity);void 0!==a.gradientMap&&(d.gradientMap=
+b(a.gradientMap));return d}});Object.assign(ae.prototype,{load:function(a,b,c,d){var e=this;(new Ja(e.manager)).load(a,function(a){b(e.parse(JSON.parse(a)))},c,d)},parse:function(a){var b=new D;var c=a.data.index;void 0!==c&&(c=new gf[c.type](c.array),b.setIndex(new P(c,1)));var d=a.data.attributes;for(f in d){var e=d[f];c=new gf[e.type](e.array);b.addAttribute(f,new P(c,e.itemSize,e.normalized))}var f=a.data.groups||a.data.drawcalls||a.data.offsets;if(void 0!==f)for(c=0,d=f.length;c!==d;++c)e=f[c],
+b.addGroup(e.start,e.count,e.materialIndex);a=a.data.boundingSphere;void 0!==a&&(f=new p,void 0!==a.center&&f.fromArray(a.center),b.boundingSphere=new Da(f,a.radius));return b}});var gf={Int8Array:Int8Array,Uint8Array:Uint8Array,Uint8ClampedArray:"undefined"!==typeof Uint8ClampedArray?Uint8ClampedArray:Uint8Array,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};kc.Handlers={handlers:[],add:function(a,b){this.handlers.push(a,
+b)},get:function(a){for(var b=this.handlers,c=0,d=b.length;c<d;c+=2){var e=b[c+1];if(b[c].test(a))return e}return null}};Object.assign(kc.prototype,{crossOrigin:void 0,extractUrlBase:function(a){a=a.split("/");if(1===a.length)return"./";a.pop();return a.join("/")+"/"},initMaterials:function(a,b,c){for(var d=[],e=0;e<a.length;++e)d[e]=this.createMaterial(a[e],b,c);return d},createMaterial:function(){var a={NoBlending:0,NormalBlending:1,AdditiveBlending:2,SubtractiveBlending:3,MultiplyBlending:4,CustomBlending:5},
+b=new H,c=new td,d=new Id;return function(e,f,g){function h(a,b,d,e,h){a=f+a;var l=kc.Handlers.get(a);null!==l?a=l.load(a):(c.setCrossOrigin(g),a=c.load(a));void 0!==b&&(a.repeat.fromArray(b),1!==b[0]&&(a.wrapS=1E3),1!==b[1]&&(a.wrapT=1E3));void 0!==d&&a.offset.fromArray(d);void 0!==e&&("repeat"===e[0]&&(a.wrapS=1E3),"mirror"===e[0]&&(a.wrapS=1002),"repeat"===e[1]&&(a.wrapT=1E3),"mirror"===e[1]&&(a.wrapT=1002));void 0!==h&&(a.anisotropy=h);b=R.generateUUID();k[b]=a;return b}var k={},l={uuid:R.generateUUID(),
+type:"MeshLambertMaterial"},m;for(m in e){var n=e[m];switch(m){case "DbgColor":case "DbgIndex":case "opticalDensity":case "illumination":break;case "DbgName":l.name=n;break;case "blending":l.blending=a[n];break;case "colorAmbient":case "mapAmbient":console.warn("THREE.Loader.createMaterial:",m,"is no longer supported.");break;case "colorDiffuse":l.color=b.fromArray(n).getHex();break;case "colorSpecular":l.specular=b.fromArray(n).getHex();break;case "colorEmissive":l.emissive=b.fromArray(n).getHex();
+break;case "specularCoef":l.shininess=n;break;case "shading":"basic"===n.toLowerCase()&&(l.type="MeshBasicMaterial");"phong"===n.toLowerCase()&&(l.type="MeshPhongMaterial");"standard"===n.toLowerCase()&&(l.type="MeshStandardMaterial");break;case "mapDiffuse":l.map=h(n,e.mapDiffuseRepeat,e.mapDiffuseOffset,e.mapDiffuseWrap,e.mapDiffuseAnisotropy);break;case "mapDiffuseRepeat":case "mapDiffuseOffset":case "mapDiffuseWrap":case "mapDiffuseAnisotropy":break;case "mapEmissive":l.emissiveMap=h(n,e.mapEmissiveRepeat,
+e.mapEmissiveOffset,e.mapEmissiveWrap,e.mapEmissiveAnisotropy);break;case "mapEmissiveRepeat":case "mapEmissiveOffset":case "mapEmissiveWrap":case "mapEmissiveAnisotropy":break;case "mapLight":l.lightMap=h(n,e.mapLightRepeat,e.mapLightOffset,e.mapLightWrap,e.mapLightAnisotropy);break;case "mapLightRepeat":case "mapLightOffset":case "mapLightWrap":case "mapLightAnisotropy":break;case "mapAO":l.aoMap=h(n,e.mapAORepeat,e.mapAOOffset,e.mapAOWrap,e.mapAOAnisotropy);break;case "mapAORepeat":case "mapAOOffset":case "mapAOWrap":case "mapAOAnisotropy":break;
+case "mapBump":l.bumpMap=h(n,e.mapBumpRepeat,e.mapBumpOffset,e.mapBumpWrap,e.mapBumpAnisotropy);break;case "mapBumpScale":l.bumpScale=n;break;case "mapBumpRepeat":case "mapBumpOffset":case "mapBumpWrap":case "mapBumpAnisotropy":break;case "mapNormal":l.normalMap=h(n,e.mapNormalRepeat,e.mapNormalOffset,e.mapNormalWrap,e.mapNormalAnisotropy);break;case "mapNormalFactor":l.normalScale=[n,n];break;case "mapNormalRepeat":case "mapNormalOffset":case "mapNormalWrap":case "mapNormalAnisotropy":break;case "mapSpecular":l.specularMap=
+h(n,e.mapSpecularRepeat,e.mapSpecularOffset,e.mapSpecularWrap,e.mapSpecularAnisotropy);break;case "mapSpecularRepeat":case "mapSpecularOffset":case "mapSpecularWrap":case "mapSpecularAnisotropy":break;case "mapMetalness":l.metalnessMap=h(n,e.mapMetalnessRepeat,e.mapMetalnessOffset,e.mapMetalnessWrap,e.mapMetalnessAnisotropy);break;case "mapMetalnessRepeat":case "mapMetalnessOffset":case "mapMetalnessWrap":case "mapMetalnessAnisotropy":break;case "mapRoughness":l.roughnessMap=h(n,e.mapRoughnessRepeat,
+e.mapRoughnessOffset,e.mapRoughnessWrap,e.mapRoughnessAnisotropy);break;case "mapRoughnessRepeat":case "mapRoughnessOffset":case "mapRoughnessWrap":case "mapRoughnessAnisotropy":break;case "mapAlpha":l.alphaMap=h(n,e.mapAlphaRepeat,e.mapAlphaOffset,e.mapAlphaWrap,e.mapAlphaAnisotropy);break;case "mapAlphaRepeat":case "mapAlphaOffset":case "mapAlphaWrap":case "mapAlphaAnisotropy":break;case "flipSided":l.side=1;break;case "doubleSided":l.side=2;break;case "transparency":console.warn("THREE.Loader.createMaterial: transparency has been renamed to opacity");
+l.opacity=n;break;case "depthTest":case "depthWrite":case "colorWrite":case "opacity":case "reflectivity":case "transparent":case "visible":case "wireframe":l[m]=n;break;case "vertexColors":!0===n&&(l.vertexColors=2);"face"===n&&(l.vertexColors=1);break;default:console.error("THREE.Loader.createMaterial: Unsupported",m,n)}}"MeshBasicMaterial"===l.type&&delete l.emissive;"MeshPhongMaterial"!==l.type&&delete l.specular;1>l.opacity&&(l.transparent=!0);d.setTextures(k);return d.parse(l)}}()});Object.assign(be.prototype,
+{load:function(a,b,c,d){var e=this,f=this.texturePath&&"string"===typeof this.texturePath?this.texturePath:kc.prototype.extractUrlBase(a),g=new Ja(this.manager);g.setWithCredentials(this.withCredentials);g.load(a,function(c){c=JSON.parse(c);var d=c.metadata;if(void 0!==d&&(d=d.type,void 0!==d)){if("object"===d.toLowerCase()){console.error("THREE.JSONLoader: "+a+" should be loaded with THREE.ObjectLoader instead.");return}if("scene"===d.toLowerCase()){console.error("THREE.JSONLoader: "+a+" should be loaded with THREE.SceneLoader instead.");
+return}}c=e.parse(c,f);b(c.geometry,c.materials)},c,d)},setTexturePath:function(a){this.texturePath=a},parse:function(){return function(a,b){void 0!==a.data&&(a=a.data);a.scale=void 0!==a.scale?1/a.scale:1;var c=new N,d=a,e,f,g,h=d.faces;var k=d.vertices;var l=d.normals,m=d.colors;var n=d.scale;var t=0;if(void 0!==d.uvs){for(e=0;e<d.uvs.length;e++)d.uvs[e].length&&t++;for(e=0;e<t;e++)c.faceVertexUvs[e]=[]}var r=0;for(g=k.length;r<g;)e=new p,e.x=k[r++]*n,e.y=k[r++]*n,e.z=k[r++]*n,c.vertices.push(e);
+r=0;for(g=h.length;r<g;){k=h[r++];var u=k&1;var v=k&2;e=k&8;var w=k&16;var x=k&32;n=k&64;k&=128;if(u){u=new Pa;u.a=h[r];u.b=h[r+1];u.c=h[r+3];var z=new Pa;z.a=h[r+1];z.b=h[r+2];z.c=h[r+3];r+=4;v&&(v=h[r++],u.materialIndex=v,z.materialIndex=v);v=c.faces.length;if(e)for(e=0;e<t;e++){var y=d.uvs[e];c.faceVertexUvs[e][v]=[];c.faceVertexUvs[e][v+1]=[];for(f=0;4>f;f++){var B=h[r++];var A=y[2*B];B=y[2*B+1];A=new C(A,B);2!==f&&c.faceVertexUvs[e][v].push(A);0!==f&&c.faceVertexUvs[e][v+1].push(A)}}w&&(w=3*
+h[r++],u.normal.set(l[w++],l[w++],l[w]),z.normal.copy(u.normal));if(x)for(e=0;4>e;e++)w=3*h[r++],x=new p(l[w++],l[w++],l[w]),2!==e&&u.vertexNormals.push(x),0!==e&&z.vertexNormals.push(x);n&&(n=h[r++],n=m[n],u.color.setHex(n),z.color.setHex(n));if(k)for(e=0;4>e;e++)n=h[r++],n=m[n],2!==e&&u.vertexColors.push(new H(n)),0!==e&&z.vertexColors.push(new H(n));c.faces.push(u);c.faces.push(z)}else{u=new Pa;u.a=h[r++];u.b=h[r++];u.c=h[r++];v&&(v=h[r++],u.materialIndex=v);v=c.faces.length;if(e)for(e=0;e<t;e++)for(y=
+d.uvs[e],c.faceVertexUvs[e][v]=[],f=0;3>f;f++)B=h[r++],A=y[2*B],B=y[2*B+1],A=new C(A,B),c.faceVertexUvs[e][v].push(A);w&&(w=3*h[r++],u.normal.set(l[w++],l[w++],l[w]));if(x)for(e=0;3>e;e++)w=3*h[r++],x=new p(l[w++],l[w++],l[w]),u.vertexNormals.push(x);n&&(n=h[r++],u.color.setHex(m[n]));if(k)for(e=0;3>e;e++)n=h[r++],u.vertexColors.push(new H(m[n]));c.faces.push(u)}}d=a;r=void 0!==d.influencesPerVertex?d.influencesPerVertex:2;if(d.skinWeights)for(g=0,h=d.skinWeights.length;g<h;g+=r)c.skinWeights.push(new da(d.skinWeights[g],
+1<r?d.skinWeights[g+1]:0,2<r?d.skinWeights[g+2]:0,3<r?d.skinWeights[g+3]:0));if(d.skinIndices)for(g=0,h=d.skinIndices.length;g<h;g+=r)c.skinIndices.push(new da(d.skinIndices[g],1<r?d.skinIndices[g+1]:0,2<r?d.skinIndices[g+2]:0,3<r?d.skinIndices[g+3]:0));c.bones=d.bones;c.bones&&0<c.bones.length&&(c.skinWeights.length!==c.skinIndices.length||c.skinIndices.length!==c.vertices.length)&&console.warn("When skinning, number of vertices ("+c.vertices.length+"), skinIndices ("+c.skinIndices.length+"), and skinWeights ("+
+c.skinWeights.length+") should match.");g=a;h=g.scale;if(void 0!==g.morphTargets)for(d=0,r=g.morphTargets.length;d<r;d++)for(c.morphTargets[d]={},c.morphTargets[d].name=g.morphTargets[d].name,c.morphTargets[d].vertices=[],l=c.morphTargets[d].vertices,m=g.morphTargets[d].vertices,t=0,k=m.length;t<k;t+=3)n=new p,n.x=m[t]*h,n.y=m[t+1]*h,n.z=m[t+2]*h,l.push(n);if(void 0!==g.morphColors&&0<g.morphColors.length)for(console.warn('THREE.JSONLoader: "morphColors" no longer supported. Using them as face colors.'),
+h=c.faces,g=g.morphColors[0].colors,d=0,r=h.length;d<r;d++)h[d].color.fromArray(g,3*d);g=a;d=[];r=[];void 0!==g.animation&&r.push(g.animation);void 0!==g.animations&&(g.animations.length?r=r.concat(g.animations):r.push(g.animations));for(g=0;g<r.length;g++)(h=ka.parseAnimation(r[g],c.bones))&&d.push(h);c.morphTargets&&(r=ka.CreateClipsFromMorphTargetSequences(c.morphTargets,10),d=d.concat(r));0<d.length&&(c.animations=d);c.computeFaceNormals();c.computeBoundingSphere();if(void 0===a.materials||0===
+a.materials.length)return{geometry:c};a=kc.prototype.initMaterials(a.materials,b,this.crossOrigin);return{geometry:c,materials:a}}}()});Object.assign(Re.prototype,{load:function(a,b,c,d){""===this.texturePath&&(this.texturePath=a.substring(0,a.lastIndexOf("/")+1));var e=this;(new Ja(e.manager)).load(a,function(c){var f=null;try{f=JSON.parse(c)}catch(h){void 0!==d&&d(h);console.error("THREE:ObjectLoader: Can't parse "+a+".",h.message);return}c=f.metadata;void 0===c||void 0===c.type||"geometry"===c.type.toLowerCase()?
+console.error("THREE.ObjectLoader: Can't load "+a+". Use THREE.JSONLoader instead."):e.parse(f,b)},c,d)},setTexturePath:function(a){this.texturePath=a},setCrossOrigin:function(a){this.crossOrigin=a},parse:function(a,b){var c=this.parseGeometries(a.geometries),d=this.parseImages(a.images,function(){void 0!==b&&b(e)}),d=this.parseTextures(a.textures,d),d=this.parseMaterials(a.materials,d),e=this.parseObject(a.object,c,d);a.animations&&(e.animations=this.parseAnimations(a.animations));void 0!==a.images&&
+0!==a.images.length||void 0===b||b(e);return e},parseGeometries:function(a){var b={};if(void 0!==a)for(var c=new be,d=new ae,e=0,f=a.length;e<f;e++){var g=a[e];switch(g.type){case "PlaneGeometry":case "PlaneBufferGeometry":var h=new Ca[g.type](g.width,g.height,g.widthSegments,g.heightSegments);break;case "BoxGeometry":case "BoxBufferGeometry":case "CubeGeometry":h=new Ca[g.type](g.width,g.height,g.depth,g.widthSegments,g.heightSegments,g.depthSegments);break;case "CircleGeometry":case "CircleBufferGeometry":h=
+new Ca[g.type](g.radius,g.segments,g.thetaStart,g.thetaLength);break;case "CylinderGeometry":case "CylinderBufferGeometry":h=new Ca[g.type](g.radiusTop,g.radiusBottom,g.height,g.radialSegments,g.heightSegments,g.openEnded,g.thetaStart,g.thetaLength);break;case "ConeGeometry":case "ConeBufferGeometry":h=new Ca[g.type](g.radius,g.height,g.radialSegments,g.heightSegments,g.openEnded,g.thetaStart,g.thetaLength);break;case "SphereGeometry":case "SphereBufferGeometry":h=new Ca[g.type](g.radius,g.widthSegments,
+g.heightSegments,g.phiStart,g.phiLength,g.thetaStart,g.thetaLength);break;case "DodecahedronGeometry":case "DodecahedronBufferGeometry":case "IcosahedronGeometry":case "IcosahedronBufferGeometry":case "OctahedronGeometry":case "OctahedronBufferGeometry":case "TetrahedronGeometry":case "TetrahedronBufferGeometry":h=new Ca[g.type](g.radius,g.detail);break;case "RingGeometry":case "RingBufferGeometry":h=new Ca[g.type](g.innerRadius,g.outerRadius,g.thetaSegments,g.phiSegments,g.thetaStart,g.thetaLength);
+break;case "TorusGeometry":case "TorusBufferGeometry":h=new Ca[g.type](g.radius,g.tube,g.radialSegments,g.tubularSegments,g.arc);break;case "TorusKnotGeometry":case "TorusKnotBufferGeometry":h=new Ca[g.type](g.radius,g.tube,g.tubularSegments,g.radialSegments,g.p,g.q);break;case "LatheGeometry":case "LatheBufferGeometry":h=new Ca[g.type](g.points,g.segments,g.phiStart,g.phiLength);break;case "PolyhedronGeometry":case "PolyhedronBufferGeometry":h=new Ca[g.type](g.vertices,g.indices,g.radius,g.details);
+break;case "BufferGeometry":h=d.parse(g);break;case "Geometry":h=c.parse(g,this.texturePath).geometry;break;default:console.warn('THREE.ObjectLoader: Unsupported geometry type "'+g.type+'"');continue}h.uuid=g.uuid;void 0!==g.name&&(h.name=g.name);b[g.uuid]=h}return b},parseMaterials:function(a,b){var c={};if(void 0!==a){var d=new Id;d.setTextures(b);b=0;for(var e=a.length;b<e;b++){var f=a[b];if("MultiMaterial"===f.type){for(var g=[],h=0;h<f.materials.length;h++)g.push(d.parse(f.materials[h]));c[f.uuid]=
+g}else c[f.uuid]=d.parse(f)}}return c},parseAnimations:function(a){for(var b=[],c=0;c<a.length;c++){var d=ka.parse(a[c]);b.push(d)}return b},parseImages:function(a,b){function c(a){d.manager.itemStart(a);return f.load(a,function(){d.manager.itemEnd(a)},void 0,function(){d.manager.itemEnd(a);d.manager.itemError(a)})}var d=this,e={};if(void 0!==a&&0<a.length){b=new Yd(b);var f=new Xc(b);f.setCrossOrigin(this.crossOrigin);b=0;for(var g=a.length;b<g;b++){var h=a[b],k=/^(\/\/)|([a-z]+:(\/\/)?)/i.test(h.url)?
+h.url:d.texturePath+h.url;e[h.uuid]=c(k)}}return e},parseTextures:function(a,b){function c(a,b){if("number"===typeof a)return a;console.warn("THREE.ObjectLoader.parseTexture: Constant should be in numeric form.",a);return b[a]}var d={};if(void 0!==a)for(var e=0,f=a.length;e<f;e++){var g=a[e];void 0===g.image&&console.warn('THREE.ObjectLoader: No "image" specified for',g.uuid);void 0===b[g.image]&&console.warn("THREE.ObjectLoader: Undefined image",g.image);var h=new ea(b[g.image]);h.needsUpdate=!0;
+h.uuid=g.uuid;void 0!==g.name&&(h.name=g.name);void 0!==g.mapping&&(h.mapping=c(g.mapping,ug));void 0!==g.offset&&h.offset.fromArray(g.offset);void 0!==g.repeat&&h.repeat.fromArray(g.repeat);void 0!==g.center&&h.center.fromArray(g.center);void 0!==g.rotation&&(h.rotation=g.rotation);void 0!==g.wrap&&(h.wrapS=c(g.wrap[0],hf),h.wrapT=c(g.wrap[1],hf));void 0!==g.minFilter&&(h.minFilter=c(g.minFilter,jf));void 0!==g.magFilter&&(h.magFilter=c(g.magFilter,jf));void 0!==g.anisotropy&&(h.anisotropy=g.anisotropy);
+void 0!==g.flipY&&(h.flipY=g.flipY);d[g.uuid]=h}return d},parseObject:function(){var a=new K;return function(b,c,d){function e(a){void 0===c[a]&&console.warn("THREE.ObjectLoader: Undefined geometry",a);return c[a]}function f(a){if(void 0!==a){if(Array.isArray(a)){for(var b=[],c=0,e=a.length;c<e;c++){var f=a[c];void 0===d[f]&&console.warn("THREE.ObjectLoader: Undefined material",f);b.push(d[f])}return b}void 0===d[a]&&console.warn("THREE.ObjectLoader: Undefined material",a);return d[a]}}switch(b.type){case "Scene":var g=
+new od;void 0!==b.background&&Number.isInteger(b.background)&&(g.background=new H(b.background));void 0!==b.fog&&("Fog"===b.fog.type?g.fog=new Pb(b.fog.color,b.fog.near,b.fog.far):"FogExp2"===b.fog.type&&(g.fog=new Ob(b.fog.color,b.fog.density)));break;case "PerspectiveCamera":g=new U(b.fov,b.aspect,b.near,b.far);void 0!==b.focus&&(g.focus=b.focus);void 0!==b.zoom&&(g.zoom=b.zoom);void 0!==b.filmGauge&&(g.filmGauge=b.filmGauge);void 0!==b.filmOffset&&(g.filmOffset=b.filmOffset);void 0!==b.view&&(g.view=
+Object.assign({},b.view));break;case "OrthographicCamera":g=new Kb(b.left,b.right,b.top,b.bottom,b.near,b.far);break;case "AmbientLight":g=new Ad(b.color,b.intensity);break;case "DirectionalLight":g=new zd(b.color,b.intensity);break;case "PointLight":g=new xd(b.color,b.intensity,b.distance,b.decay);break;case "RectAreaLight":g=new Bd(b.color,b.intensity,b.width,b.height);break;case "SpotLight":g=new wd(b.color,b.intensity,b.distance,b.angle,b.penumbra,b.decay);break;case "HemisphereLight":g=new ud(b.color,
+b.groundColor,b.intensity);break;case "SkinnedMesh":console.warn("THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.");case "Mesh":g=e(b.geometry);var h=f(b.material);g=g.bones&&0<g.bones.length?new qd(g,h):new pa(g,h);break;case "LOD":g=new Dc;break;case "Line":g=new ma(e(b.geometry),f(b.material),b.mode);break;case "LineLoop":g=new rd(e(b.geometry),f(b.material));break;case "LineSegments":g=new ca(e(b.geometry),f(b.material));break;case "PointCloud":case "Points":g=new Qb(e(b.geometry),
+f(b.material));break;case "Sprite":g=new Cc(f(b.material));break;case "Group":g=new Fc;break;default:g=new A}g.uuid=b.uuid;void 0!==b.name&&(g.name=b.name);void 0!==b.matrix?(a.fromArray(b.matrix),a.decompose(g.position,g.quaternion,g.scale)):(void 0!==b.position&&g.position.fromArray(b.position),void 0!==b.rotation&&g.rotation.fromArray(b.rotation),void 0!==b.quaternion&&g.quaternion.fromArray(b.quaternion),void 0!==b.scale&&g.scale.fromArray(b.scale));void 0!==b.castShadow&&(g.castShadow=b.castShadow);
+void 0!==b.receiveShadow&&(g.receiveShadow=b.receiveShadow);b.shadow&&(void 0!==b.shadow.bias&&(g.shadow.bias=b.shadow.bias),void 0!==b.shadow.radius&&(g.shadow.radius=b.shadow.radius),void 0!==b.shadow.mapSize&&g.shadow.mapSize.fromArray(b.shadow.mapSize),void 0!==b.shadow.camera&&(g.shadow.camera=this.parseObject(b.shadow.camera)));void 0!==b.visible&&(g.visible=b.visible);void 0!==b.userData&&(g.userData=b.userData);if(void 0!==b.children)for(var h=b.children,k=0;k<h.length;k++)g.add(this.parseObject(h[k],
+c,d));if("LOD"===b.type)for(b=b.levels,h=0;h<b.length;h++){var k=b[h],l=g.getObjectByProperty("uuid",k.object);void 0!==l&&g.addLevel(l,k.distance)}return g}}()});var ug={UVMapping:300,CubeReflectionMapping:301,CubeRefractionMapping:302,EquirectangularReflectionMapping:303,EquirectangularRefractionMapping:304,SphericalReflectionMapping:305,CubeUVReflectionMapping:306,CubeUVRefractionMapping:307},hf={RepeatWrapping:1E3,ClampToEdgeWrapping:1001,MirroredRepeatWrapping:1002},jf={NearestFilter:1003,NearestMipMapNearestFilter:1004,
+NearestMipMapLinearFilter:1005,LinearFilter:1006,LinearMipMapNearestFilter:1007,LinearMipMapLinearFilter:1008};Object.assign(S.prototype,{getPoint:function(){console.warn("THREE.Curve: .getPoint() not implemented.");return null},getPointAt:function(a,b){a=this.getUtoTmapping(a);return this.getPoint(a,b)},getPoints:function(a){void 0===a&&(a=5);for(var b=[],c=0;c<=a;c++)b.push(this.getPoint(c/a));return b},getSpacedPoints:function(a){void 0===a&&(a=5);for(var b=[],c=0;c<=a;c++)b.push(this.getPointAt(c/
+a));return b},getLength:function(){var a=this.getLengths();return a[a.length-1]},getLengths:function(a){void 0===a&&(a=this.arcLengthDivisions);if(this.cacheArcLengths&&this.cacheArcLengths.length===a+1&&!this.needsUpdate)return this.cacheArcLengths;this.needsUpdate=!1;var b=[],c=this.getPoint(0),d,e=0;b.push(0);for(d=1;d<=a;d++){var f=this.getPoint(d/a);e+=f.distanceTo(c);b.push(e);c=f}return this.cacheArcLengths=b},updateArcLengths:function(){this.needsUpdate=!0;this.getLengths()},getUtoTmapping:function(a,
+b){var c=this.getLengths(),d=c.length;b=b?b:a*c[d-1];for(var e=0,f=d-1,g;e<=f;)if(a=Math.floor(e+(f-e)/2),g=c[a]-b,0>g)e=a+1;else if(0<g)f=a-1;else{f=a;break}a=f;if(c[a]===b)return a/(d-1);e=c[a];return(a+(b-e)/(c[a+1]-e))/(d-1)},getTangent:function(a){var b=a-1E-4;a+=1E-4;0>b&&(b=0);1<a&&(a=1);b=this.getPoint(b);return this.getPoint(a).clone().sub(b).normalize()},getTangentAt:function(a){a=this.getUtoTmapping(a);return this.getTangent(a)},computeFrenetFrames:function(a,b){var c=new p,d=[],e=[],f=
+[],g=new p,h=new K,k;for(k=0;k<=a;k++){var l=k/a;d[k]=this.getTangentAt(l);d[k].normalize()}e[0]=new p;f[0]=new p;k=Number.MAX_VALUE;l=Math.abs(d[0].x);var m=Math.abs(d[0].y),n=Math.abs(d[0].z);l<=k&&(k=l,c.set(1,0,0));m<=k&&(k=m,c.set(0,1,0));n<=k&&c.set(0,0,1);g.crossVectors(d[0],c).normalize();e[0].crossVectors(d[0],g);f[0].crossVectors(d[0],e[0]);for(k=1;k<=a;k++)e[k]=e[k-1].clone(),f[k]=f[k-1].clone(),g.crossVectors(d[k-1],d[k]),g.length()>Number.EPSILON&&(g.normalize(),c=Math.acos(R.clamp(d[k-
+1].dot(d[k]),-1,1)),e[k].applyMatrix4(h.makeRotationAxis(g,c))),f[k].crossVectors(d[k],e[k]);if(!0===b)for(c=Math.acos(R.clamp(e[0].dot(e[a]),-1,1)),c/=a,0<d[0].dot(g.crossVectors(e[0],e[a]))&&(c=-c),k=1;k<=a;k++)e[k].applyMatrix4(h.makeRotationAxis(d[k],c*k)),f[k].crossVectors(d[k],e[k]);return{tangents:d,normals:e,binormals:f}},clone:function(){return(new this.constructor).copy(this)},copy:function(a){this.arcLengthDivisions=a.arcLengthDivisions;return this}});Ka.prototype=Object.create(S.prototype);
+Ka.prototype.constructor=Ka;Ka.prototype.isLineCurve=!0;Ka.prototype.getPoint=function(a,b){b=b||new C;1===a?b.copy(this.v2):(b.copy(this.v2).sub(this.v1),b.multiplyScalar(a).add(this.v1));return b};Ka.prototype.getPointAt=function(a,b){return this.getPoint(a,b)};Ka.prototype.getTangent=function(){return this.v2.clone().sub(this.v1).normalize()};Ka.prototype.copy=function(a){S.prototype.copy.call(this,a);this.v1.copy(a.v1);this.v2.copy(a.v2);return this};Ab.prototype=Object.assign(Object.create(S.prototype),
+{constructor:Ab,add:function(a){this.curves.push(a)},closePath:function(){var a=this.curves[0].getPoint(0),b=this.curves[this.curves.length-1].getPoint(1);a.equals(b)||this.curves.push(new Ka(b,a))},getPoint:function(a){var b=a*this.getLength(),c=this.getCurveLengths();for(a=0;a<c.length;){if(c[a]>=b)return b=c[a]-b,a=this.curves[a],c=a.getLength(),a.getPointAt(0===c?0:1-b/c);a++}return null},getLength:function(){var a=this.getCurveLengths();return a[a.length-1]},updateArcLengths:function(){this.needsUpdate=
+!0;this.cacheLengths=null;this.getCurveLengths()},getCurveLengths:function(){if(this.cacheLengths&&this.cacheLengths.length===this.curves.length)return this.cacheLengths;for(var a=[],b=0,c=0,d=this.curves.length;c<d;c++)b+=this.curves[c].getLength(),a.push(b);return this.cacheLengths=a},getSpacedPoints:function(a){void 0===a&&(a=40);for(var b=[],c=0;c<=a;c++)b.push(this.getPoint(c/a));this.autoClose&&b.push(b[0]);return b},getPoints:function(a){a=a||12;for(var b=[],c,d=0,e=this.curves;d<e.length;d++)for(var f=
+e[d],f=f.getPoints(f&&f.isEllipseCurve?2*a:f&&f.isLineCurve?1:f&&f.isSplineCurve?a*f.points.length:a),g=0;g<f.length;g++){var h=f[g];c&&c.equals(h)||(b.push(h),c=h)}this.autoClose&&1<b.length&&!b[b.length-1].equals(b[0])&&b.push(b[0]);return b},copy:function(a){S.prototype.copy.call(this,a);this.curves=[];for(var b=0,c=a.curves.length;b<c;b++)this.curves.push(a.curves[b].clone());this.autoClose=a.autoClose;return this}});Na.prototype=Object.create(S.prototype);Na.prototype.constructor=Na;Na.prototype.isEllipseCurve=
+!0;Na.prototype.getPoint=function(a,b){b=b||new C;for(var c=2*Math.PI,d=this.aEndAngle-this.aStartAngle,e=Math.abs(d)<Number.EPSILON;0>d;)d+=c;for(;d>c;)d-=c;d<Number.EPSILON&&(d=e?0:c);!0!==this.aClockwise||e||(d=d===c?-c:d-c);c=this.aStartAngle+a*d;a=this.aX+this.xRadius*Math.cos(c);var f=this.aY+this.yRadius*Math.sin(c);0!==this.aRotation&&(c=Math.cos(this.aRotation),d=Math.sin(this.aRotation),e=a-this.aX,f-=this.aY,a=e*c-f*d+this.aX,f=e*d+f*c+this.aY);return b.set(a,f)};Na.prototype.copy=function(a){S.prototype.copy.call(this,
+a);this.aX=a.aX;this.aY=a.aY;this.xRadius=a.xRadius;this.yRadius=a.yRadius;this.aStartAngle=a.aStartAngle;this.aEndAngle=a.aEndAngle;this.aClockwise=a.aClockwise;this.aRotation=a.aRotation;return this};ab.prototype=Object.create(S.prototype);ab.prototype.constructor=ab;ab.prototype.isSplineCurve=!0;ab.prototype.getPoint=function(a,b){b=b||new C;var c=this.points,d=(c.length-1)*a;a=Math.floor(d);var d=d-a,e=c[0===a?a:a-1],f=c[a],g=c[a>c.length-2?c.length-1:a+1],c=c[a>c.length-3?c.length-1:a+2];b.set(Se(d,
+e.x,f.x,g.x,c.x),Se(d,e.y,f.y,g.y,c.y));return b};ab.prototype.copy=function(a){S.prototype.copy.call(this,a);this.points=[];for(var b=0,c=a.points.length;b<c;b++)this.points.push(a.points[b].clone());return this};bb.prototype=Object.create(S.prototype);bb.prototype.constructor=bb;bb.prototype.isCubicBezierCurve=!0;bb.prototype.getPoint=function(a,b){b=b||new C;var c=this.v0,d=this.v1,e=this.v2,f=this.v3;b.set(zb(a,c.x,d.x,e.x,f.x),zb(a,c.y,d.y,e.y,f.y));return b};bb.prototype.copy=function(a){S.prototype.copy.call(this,
+a);this.v0.copy(a.v0);this.v1.copy(a.v1);this.v2.copy(a.v2);this.v3.copy(a.v3);return this};cb.prototype=Object.create(S.prototype);cb.prototype.constructor=cb;cb.prototype.isQuadraticBezierCurve=!0;cb.prototype.getPoint=function(a,b){b=b||new C;var c=this.v0,d=this.v1,e=this.v2;b.set(yb(a,c.x,d.x,e.x),yb(a,c.y,d.y,e.y));return b};cb.prototype.copy=function(a){S.prototype.copy.call(this,a);this.v0.copy(a.v0);this.v1.copy(a.v1);this.v2.copy(a.v2);return this};var se=Object.assign(Object.create(Ab.prototype),
+{setFromPoints:function(a){this.moveTo(a[0].x,a[0].y);for(var b=1,c=a.length;b<c;b++)this.lineTo(a[b].x,a[b].y)},moveTo:function(a,b){this.currentPoint.set(a,b)},lineTo:function(a,b){var c=new Ka(this.currentPoint.clone(),new C(a,b));this.curves.push(c);this.currentPoint.set(a,b)},quadraticCurveTo:function(a,b,c,d){a=new cb(this.currentPoint.clone(),new C(a,b),new C(c,d));this.curves.push(a);this.currentPoint.set(c,d)},bezierCurveTo:function(a,b,c,d,e,f){a=new bb(this.currentPoint.clone(),new C(a,
+b),new C(c,d),new C(e,f));this.curves.push(a);this.currentPoint.set(e,f)},splineThru:function(a){var b=[this.currentPoint.clone()].concat(a),b=new ab(b);this.curves.push(b);this.currentPoint.copy(a[a.length-1])},arc:function(a,b,c,d,e,f){this.absarc(a+this.currentPoint.x,b+this.currentPoint.y,c,d,e,f)},absarc:function(a,b,c,d,e,f){this.absellipse(a,b,c,c,d,e,f)},ellipse:function(a,b,c,d,e,f,g,h){this.absellipse(a+this.currentPoint.x,b+this.currentPoint.y,c,d,e,f,g,h)},absellipse:function(a,b,c,d,
+e,f,g,h){a=new Na(a,b,c,d,e,f,g,h);0<this.curves.length&&(b=a.getPoint(0),b.equals(this.currentPoint)||this.lineTo(b.x,b.y));this.curves.push(a);a=a.getPoint(1);this.currentPoint.copy(a)},copy:function(a){Ab.prototype.copy.call(this,a);this.currentPoint.copy(a.currentPoint);return this}});Bb.prototype=se;se.constructor=Bb;Cb.prototype=Object.assign(Object.create(se),{constructor:Cb,getPointsHoles:function(a){for(var b=[],c=0,d=this.holes.length;c<d;c++)b[c]=this.holes[c].getPoints(a);return b},extractPoints:function(a){return{shape:this.getPoints(a),
+holes:this.getPointsHoles(a)}},copy:function(a){Bb.prototype.copy.call(this,a);this.holes=[];for(var b=0,c=a.holes.length;b<c;b++)this.holes.push(a.holes[b].clone());return this}});Object.assign(ce.prototype,{moveTo:function(a,b){this.currentPath=new Bb;this.subPaths.push(this.currentPath);this.currentPath.moveTo(a,b)},lineTo:function(a,b){this.currentPath.lineTo(a,b)},quadraticCurveTo:function(a,b,c,d){this.currentPath.quadraticCurveTo(a,b,c,d)},bezierCurveTo:function(a,b,c,d,e,f){this.currentPath.bezierCurveTo(a,
+b,c,d,e,f)},splineThru:function(a){this.currentPath.splineThru(a)},toShapes:function(a,b){function c(a){for(var b=[],c=0,d=a.length;c<d;c++){var e=a[c],f=new Cb;f.curves=e.curves;b.push(f)}return b}function d(a,b){for(var c=b.length,d=!1,e=c-1,f=0;f<c;e=f++){var g=b[e],h=b[f],k=h.x-g.x,l=h.y-g.y;if(Math.abs(l)>Number.EPSILON){if(0>l&&(g=b[f],k=-k,h=b[e],l=-l),!(a.y<g.y||a.y>h.y))if(a.y===g.y){if(a.x===g.x)return!0}else{e=l*(a.x-g.x)-k*(a.y-g.y);if(0===e)return!0;0>e||(d=!d)}}else if(a.y===g.y&&(h.x<=
+a.x&&a.x<=g.x||g.x<=a.x&&a.x<=h.x))return!0}return d}var e=Ha.isClockWise,f=this.subPaths;if(0===f.length)return[];if(!0===b)return c(f);b=[];if(1===f.length){var g=f[0];var h=new Cb;h.curves=g.curves;b.push(h);return b}var k=!e(f[0].getPoints()),k=a?!k:k;h=[];var l=[],m=[],n=0;l[n]=void 0;m[n]=[];for(var p=0,r=f.length;p<r;p++){g=f[p];var u=g.getPoints();var v=e(u);(v=a?!v:v)?(!k&&l[n]&&n++,l[n]={s:new Cb,p:u},l[n].s.curves=g.curves,k&&n++,m[n]=[]):m[n].push({h:g,p:u[0]})}if(!l[0])return c(f);if(1<
+l.length){p=!1;a=[];e=0;for(f=l.length;e<f;e++)h[e]=[];e=0;for(f=l.length;e<f;e++)for(g=m[e],v=0;v<g.length;v++){k=g[v];n=!0;for(u=0;u<l.length;u++)d(k.p,l[u].p)&&(e!==u&&a.push({froms:e,tos:u,hole:v}),n?(n=!1,h[u].push(k)):p=!0);n&&h[e].push(k)}0<a.length&&(p||(m=h))}p=0;for(e=l.length;p<e;p++)for(h=l[p].s,b.push(h),a=m[p],f=0,g=a.length;f<g;f++)h.holes.push(a[f].h);return b}});Object.assign(de.prototype,{isFont:!0,generateShapes:function(a,b,c){void 0===b&&(b=100);void 0===c&&(c=4);var d=this.data;
+a=String(a).split("");var e=b/d.resolution,f=(d.boundingBox.yMax-d.boundingBox.yMin+d.underlineThickness)*e,g=0,h=0;b=[];for(var k=0;k<a.length;k++){var l=a[k];if("\n"===l)g=0,h-=f;else{var m;var n=e;var p=g,r=h;if(l=d.glyphs[l]||d.glyphs["?"]){var u=new ce,v=[];if(l.o)for(var w=l._cachedOutline||(l._cachedOutline=l.o.split(" ")),x=0,y=w.length;x<y;)switch(w[x++]){case "m":var A=w[x++]*n+p;var B=w[x++]*n+r;u.moveTo(A,B);break;case "l":A=w[x++]*n+p;B=w[x++]*n+r;u.lineTo(A,B);break;case "q":var C=w[x++]*
+n+p;var D=w[x++]*n+r;var E=w[x++]*n+p;var H=w[x++]*n+r;u.quadraticCurveTo(E,H,C,D);if(m=v[v.length-1]){var N=m.x;m=m.y;for(var K=1;K<=c;K++){var O=K/c;yb(O,N,E,C);yb(O,m,H,D)}}break;case "b":if(C=w[x++]*n+p,D=w[x++]*n+r,E=w[x++]*n+p,H=w[x++]*n+r,A=w[x++]*n+p,B=w[x++]*n+r,u.bezierCurveTo(E,H,A,B,C,D),m=v[v.length-1])for(N=m.x,m=m.y,K=1;K<=c;K++)O=K/c,zb(O,N,E,A,C),zb(O,m,H,B,D)}n={offsetX:l.ha*n,path:u}}else n=void 0;g+=n.offsetX;b.push(n.path)}}c=[];d=0;for(a=b.length;d<a;d++)Array.prototype.push.apply(c,
+b[d].toShapes());return c}});Object.assign(Te.prototype,{load:function(a,b,c,d){var e=this,f=new Ja(this.manager);f.setPath(this.path);f.load(a,function(a){try{var c=JSON.parse(a)}catch(k){console.warn("THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead."),c=JSON.parse(a.substring(65,a.length-2))}a=e.parse(c);b&&b(a)},c,d)},parse:function(a){return new de(a)},setPath:function(a){this.path=a;return this}});var Md,ge={getContext:function(){void 0===Md&&(Md=new (window.AudioContext||
+window.webkitAudioContext));return Md},setContext:function(a){Md=a}};Object.assign(ee.prototype,{load:function(a,b,c,d){var e=new Ja(this.manager);e.setResponseType("arraybuffer");e.load(a,function(a){ge.getContext().decodeAudioData(a,function(a){b(a)})},c,d)}});Object.assign(Ue.prototype,{update:function(){var a,b,c,d,e,f,g,h,k=new K,l=new K;return function(m){if(a!==this||b!==m.focus||c!==m.fov||d!==m.aspect*this.aspect||e!==m.near||f!==m.far||g!==m.zoom||h!==this.eyeSep){a=this;b=m.focus;c=m.fov;
+d=m.aspect*this.aspect;e=m.near;f=m.far;g=m.zoom;var n=m.projectionMatrix.clone();h=this.eyeSep/2;var q=h*e/b,p=e*Math.tan(R.DEG2RAD*c*.5)/g;l.elements[12]=-h;k.elements[12]=h;var u=-p*d+q;var v=p*d+q;n.elements[0]=2*e/(v-u);n.elements[8]=(v+u)/(v-u);this.cameraL.projectionMatrix.copy(n);u=-p*d-q;v=p*d-q;n.elements[0]=2*e/(v-u);n.elements[8]=(v+u)/(v-u);this.cameraR.projectionMatrix.copy(n)}this.cameraL.matrixWorld.copy(m.matrixWorld).multiply(l);this.cameraR.matrixWorld.copy(m.matrixWorld).multiply(k)}}()});
+$c.prototype=Object.create(A.prototype);$c.prototype.constructor=$c;fe.prototype=Object.assign(Object.create(A.prototype),{constructor:fe,getInput:function(){return this.gain},removeFilter:function(){null!==this.filter&&(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination),this.gain.connect(this.context.destination),this.filter=null)},getFilter:function(){return this.filter},setFilter:function(a){null!==this.filter?(this.gain.disconnect(this.filter),this.filter.disconnect(this.context.destination)):
+this.gain.disconnect(this.context.destination);this.filter=a;this.gain.connect(this.filter);this.filter.connect(this.context.destination)},getMasterVolume:function(){return this.gain.gain.value},setMasterVolume:function(a){this.gain.gain.value=a},updateMatrixWorld:function(){var a=new p,b=new Z,c=new p,d=new p;return function(e){A.prototype.updateMatrixWorld.call(this,e);e=this.context.listener;var f=this.up;this.matrixWorld.decompose(a,b,c);d.set(0,0,-1).applyQuaternion(b);e.positionX?(e.positionX.setValueAtTime(a.x,
+this.context.currentTime),e.positionY.setValueAtTime(a.y,this.context.currentTime),e.positionZ.setValueAtTime(a.z,this.context.currentTime),e.forwardX.setValueAtTime(d.x,this.context.currentTime),e.forwardY.setValueAtTime(d.y,this.context.currentTime),e.forwardZ.setValueAtTime(d.z,this.context.currentTime),e.upX.setValueAtTime(f.x,this.context.currentTime),e.upY.setValueAtTime(f.y,this.context.currentTime),e.upZ.setValueAtTime(f.z,this.context.currentTime)):(e.setPosition(a.x,a.y,a.z),e.setOrientation(d.x,
+d.y,d.z,f.x,f.y,f.z))}}()});lc.prototype=Object.assign(Object.create(A.prototype),{constructor:lc,getOutput:function(){return this.gain},setNodeSource:function(a){this.hasPlaybackControl=!1;this.sourceType="audioNode";this.source=a;this.connect();return this},setBuffer:function(a){this.buffer=a;this.sourceType="buffer";this.autoplay&&this.play();return this},play:function(){if(!0===this.isPlaying)console.warn("THREE.Audio: Audio is already playing.");else if(!1===this.hasPlaybackControl)console.warn("THREE.Audio: this Audio has no playback control.");
+else{var a=this.context.createBufferSource();a.buffer=this.buffer;a.loop=this.loop;a.onended=this.onEnded.bind(this);a.playbackRate.setValueAtTime(this.playbackRate,this.startTime);this.startTime=this.context.currentTime;a.start(this.startTime,this.offset);this.isPlaying=!0;this.source=a;return this.connect()}},pause:function(){if(!1===this.hasPlaybackControl)console.warn("THREE.Audio: this Audio has no playback control.");else return!0===this.isPlaying&&(this.source.stop(),this.offset+=(this.context.currentTime-
+this.startTime)*this.playbackRate,this.isPlaying=!1),this},stop:function(){if(!1===this.hasPlaybackControl)console.warn("THREE.Audio: this Audio has no playback control.");else return this.source.stop(),this.offset=0,this.isPlaying=!1,this},connect:function(){if(0<this.filters.length){this.source.connect(this.filters[0]);for(var a=1,b=this.filters.length;a<b;a++)this.filters[a-1].connect(this.filters[a]);this.filters[this.filters.length-1].connect(this.getOutput())}else this.source.connect(this.getOutput());
+return this},disconnect:function(){if(0<this.filters.length){this.source.disconnect(this.filters[0]);for(var a=1,b=this.filters.length;a<b;a++)this.filters[a-1].disconnect(this.filters[a]);this.filters[this.filters.length-1].disconnect(this.getOutput())}else this.source.disconnect(this.getOutput());return this},getFilters:function(){return this.filters},setFilters:function(a){a||(a=[]);!0===this.isPlaying?(this.disconnect(),this.filters=a,this.connect()):this.filters=a;return this},getFilter:function(){return this.getFilters()[0]},
+setFilter:function(a){return this.setFilters(a?[a]:[])},setPlaybackRate:function(a){if(!1===this.hasPlaybackControl)console.warn("THREE.Audio: this Audio has no playback control.");else return this.playbackRate=a,!0===this.isPlaying&&this.source.playbackRate.setValueAtTime(this.playbackRate,this.context.currentTime),this},getPlaybackRate:function(){return this.playbackRate},onEnded:function(){this.isPlaying=!1},getLoop:function(){return!1===this.hasPlaybackControl?(console.warn("THREE.Audio: this Audio has no playback control."),
+!1):this.loop},setLoop:function(a){if(!1===this.hasPlaybackControl)console.warn("THREE.Audio: this Audio has no playback control.");else return this.loop=a,!0===this.isPlaying&&(this.source.loop=this.loop),this},getVolume:function(){return this.gain.gain.value},setVolume:function(a){this.gain.gain.value=a;return this}});he.prototype=Object.assign(Object.create(lc.prototype),{constructor:he,getOutput:function(){return this.panner},getRefDistance:function(){return this.panner.refDistance},setRefDistance:function(a){this.panner.refDistance=
+a},getRolloffFactor:function(){return this.panner.rolloffFactor},setRolloffFactor:function(a){this.panner.rolloffFactor=a},getDistanceModel:function(){return this.panner.distanceModel},setDistanceModel:function(a){this.panner.distanceModel=a},getMaxDistance:function(){return this.panner.maxDistance},setMaxDistance:function(a){this.panner.maxDistance=a},updateMatrixWorld:function(){var a=new p;return function(b){A.prototype.updateMatrixWorld.call(this,b);a.setFromMatrixPosition(this.matrixWorld);this.panner.setPosition(a.x,
+a.y,a.z)}}()});Object.assign(ie.prototype,{getFrequencyData:function(){this.analyser.getByteFrequencyData(this.data);return this.data},getAverageFrequency:function(){for(var a=0,b=this.getFrequencyData(),c=0;c<b.length;c++)a+=b[c];return a/b.length}});Object.assign(je.prototype,{accumulate:function(a,b){var c=this.buffer,d=this.valueSize;a=a*d+d;var e=this.cumulativeWeight;if(0===e){for(e=0;e!==d;++e)c[a+e]=c[e];e=b}else e+=b,this._mixBufferRegion(c,a,0,b/e,d);this.cumulativeWeight=e},apply:function(a){var b=
+this.valueSize,c=this.buffer;a=a*b+b;var d=this.cumulativeWeight,e=this.binding;this.cumulativeWeight=0;1>d&&this._mixBufferRegion(c,a,3*b,1-d,b);for(var d=b,f=b+b;d!==f;++d)if(c[d]!==c[d+b]){e.setValue(c,a);break}},saveOriginalState:function(){var a=this.buffer,b=this.valueSize,c=3*b;this.binding.getValue(a,c);for(var d=b;d!==c;++d)a[d]=a[c+d%b];this.cumulativeWeight=0},restoreOriginalState:function(){this.binding.setValue(this.buffer,3*this.valueSize)},_select:function(a,b,c,d,e){if(.5<=d)for(d=
+0;d!==e;++d)a[b+d]=a[c+d]},_slerp:function(a,b,c,d){Z.slerpFlat(a,b,a,b,a,c,d)},_lerp:function(a,b,c,d,e){for(var f=1-d,g=0;g!==e;++g){var h=b+g;a[h]=a[h]*f+a[c+g]*d}}});Object.assign(Ve.prototype,{getValue:function(a,b){this.bind();var c=this._bindings[this._targetGroup.nCachedObjects_];void 0!==c&&c.getValue(a,b)},setValue:function(a,b){for(var c=this._bindings,d=this._targetGroup.nCachedObjects_,e=c.length;d!==e;++d)c[d].setValue(a,b)},bind:function(){for(var a=this._bindings,b=this._targetGroup.nCachedObjects_,
+c=a.length;b!==c;++b)a[b].bind()},unbind:function(){for(var a=this._bindings,b=this._targetGroup.nCachedObjects_,c=a.length;b!==c;++b)a[b].unbind()}});Object.assign(na,{Composite:Ve,create:function(a,b,c){return a&&a.isAnimationObjectGroup?new na.Composite(a,b,c):new na(a,b,c)},sanitizeNodeName:function(a){return a.replace(/\s/g,"_").replace(/[^\w-]/g,"")},parseTrackName:function(){var a=new RegExp("^"+/((?:[\w-]+[\/:])*)/.source+/([\w-\.]+)?/.source+/(?:\.([\w-]+)(?:\[(.+)\])?)?/.source+/\.([\w-]+)(?:\[(.+)\])?/.source+
+"$"),b=["material","materials","bones"];return function(c){var d=a.exec(c);if(!d)throw Error("PropertyBinding: Cannot parse trackName: "+c);var d={nodeName:d[2],objectName:d[3],objectIndex:d[4],propertyName:d[5],propertyIndex:d[6]},e=d.nodeName&&d.nodeName.lastIndexOf(".");if(void 0!==e&&-1!==e){var f=d.nodeName.substring(e+1);-1!==b.indexOf(f)&&(d.nodeName=d.nodeName.substring(0,e),d.objectName=f)}if(null===d.propertyName||0===d.propertyName.length)throw Error("PropertyBinding: can not parse propertyName from trackName: "+
+c);return d}}(),findNode:function(a,b){if(!b||""===b||"root"===b||"."===b||-1===b||b===a.name||b===a.uuid)return a;if(a.skeleton){var c=function(a){for(var c=0;c<a.bones.length;c++){var d=a.bones[c];if(d.name===b)return d}return null}(a.skeleton);if(c)return c}if(a.children){var d=function(a){for(var c=0;c<a.length;c++){var e=a[c];if(e.name===b||e.uuid===b||(e=d(e.children)))return e}return null};if(a=d(a.children))return a}return null}});Object.assign(na.prototype,{_getValue_unavailable:function(){},
+_setValue_unavailable:function(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function(a,b){a[b]=this.node[this.propertyName]},function(a,b){for(var c=this.resolvedProperty,d=0,e=c.length;d!==e;++d)a[b++]=c[d]},function(a,b){a[b]=this.resolvedProperty[this.propertyIndex]},function(a,b){this.resolvedProperty.toArray(a,b)}],SetterByBindingTypeAndVersioning:[[function(a,b){this.targetObject[this.propertyName]=
+a[b]},function(a,b){this.targetObject[this.propertyName]=a[b];this.targetObject.needsUpdate=!0},function(a,b){this.targetObject[this.propertyName]=a[b];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(a,b){for(var c=this.resolvedProperty,d=0,e=c.length;d!==e;++d)c[d]=a[b++]},function(a,b){for(var c=this.resolvedProperty,d=0,e=c.length;d!==e;++d)c[d]=a[b++];this.targetObject.needsUpdate=!0},function(a,b){for(var c=this.resolvedProperty,d=0,e=c.length;d!==e;++d)c[d]=a[b++];this.targetObject.matrixWorldNeedsUpdate=
+!0}],[function(a,b){this.resolvedProperty[this.propertyIndex]=a[b]},function(a,b){this.resolvedProperty[this.propertyIndex]=a[b];this.targetObject.needsUpdate=!0},function(a,b){this.resolvedProperty[this.propertyIndex]=a[b];this.targetObject.matrixWorldNeedsUpdate=!0}],[function(a,b){this.resolvedProperty.fromArray(a,b)},function(a,b){this.resolvedProperty.fromArray(a,b);this.targetObject.needsUpdate=!0},function(a,b){this.resolvedProperty.fromArray(a,b);this.targetObject.matrixWorldNeedsUpdate=!0}]],
+getValue:function(a,b){this.bind();this.getValue(a,b)},setValue:function(a,b){this.bind();this.setValue(a,b)},bind:function(){var a=this.node,b=this.parsedPath,c=b.objectName,d=b.propertyName,e=b.propertyIndex;a||(this.node=a=na.findNode(this.rootNode,b.nodeName)||this.rootNode);this.getValue=this._getValue_unavailable;this.setValue=this._setValue_unavailable;if(a){if(c){var f=b.objectIndex;switch(c){case "materials":if(!a.material){console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.",
+this);return}if(!a.material.materials){console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.",this);return}a=a.material.materials;break;case "bones":if(!a.skeleton){console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.",this);return}a=a.skeleton.bones;for(c=0;c<a.length;c++)if(a[c].name===f){f=c;break}break;default:if(void 0===a[c]){console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.",
+this);return}a=a[c]}if(void 0!==f){if(void 0===a[f]){console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.",this,a);return}a=a[f]}}f=a[d];if(void 0===f)console.error("THREE.PropertyBinding: Trying to update property for track: "+b.nodeName+"."+d+" but it wasn't found.",a);else{b=this.Versioning.None;void 0!==a.needsUpdate?(b=this.Versioning.NeedsUpdate,this.targetObject=a):void 0!==a.matrixWorldNeedsUpdate&&(b=this.Versioning.MatrixWorldNeedsUpdate,this.targetObject=
+a);c=this.BindingType.Direct;if(void 0!==e){if("morphTargetInfluences"===d){if(!a.geometry){console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.",this);return}if(a.geometry.isBufferGeometry){if(!a.geometry.morphAttributes){console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.",this);return}for(c=0;c<this.node.geometry.morphAttributes.position.length;c++)if(a.geometry.morphAttributes.position[c].name===
+e){e=c;break}}else{if(!a.geometry.morphTargets){console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.",this);return}for(c=0;c<this.node.geometry.morphTargets.length;c++)if(a.geometry.morphTargets[c].name===e){e=c;break}}}c=this.BindingType.ArrayElement;this.resolvedProperty=f;this.propertyIndex=e}else void 0!==f.fromArray&&void 0!==f.toArray?(c=this.BindingType.HasFromToArray,this.resolvedProperty=f):Array.isArray(f)?(c=this.BindingType.EntireArray,
+this.resolvedProperty=f):this.propertyName=d;this.getValue=this.GetterByBindingType[c];this.setValue=this.SetterByBindingTypeAndVersioning[c][b]}}else console.error("THREE.PropertyBinding: Trying to update node for track: "+this.path+" but it wasn't found.")},unbind:function(){this.node=null;this.getValue=this._getValue_unbound;this.setValue=this._setValue_unbound}});Object.assign(na.prototype,{_getValue_unbound:na.prototype.getValue,_setValue_unbound:na.prototype.setValue});Object.assign(We.prototype,
+{isAnimationObjectGroup:!0,add:function(){for(var a=this._objects,b=a.length,c=this.nCachedObjects_,d=this._indicesByUUID,e=this._paths,f=this._parsedPaths,g=this._bindings,h=g.length,k=0,l=arguments.length;k!==l;++k){var m=arguments[k],n=m.uuid,p=d[n];if(void 0===p){p=b++;d[n]=p;a.push(m);for(var n=0,r=h;n!==r;++n)g[n].push(new na(m,e[n],f[n]))}else if(p<c){var u=--c,r=a[u];d[r.uuid]=p;a[p]=r;d[n]=u;a[u]=m;n=0;for(r=h;n!==r;++n){var v=g[n],w=v[p];v[p]=v[u];void 0===w&&(w=new na(m,e[n],f[n]));v[u]=
+w}}else void 0!==a[p]&&console.error("THREE.AnimationObjectGroup: Different objects with the same UUID detected. Clean the caches or recreate your infrastructure when reloading scenes.")}this.nCachedObjects_=c},remove:function(){for(var a=this._objects,b=this.nCachedObjects_,c=this._indicesByUUID,d=this._bindings,e=d.length,f=0,g=arguments.length;f!==g;++f){var h=arguments[f],k=h.uuid,l=c[k];if(void 0!==l&&l>=b){var m=b++,n=a[m];c[n.uuid]=l;a[l]=n;c[k]=m;a[m]=h;h=0;for(k=e;h!==k;++h){var n=d[h],p=
+n[l];n[l]=n[m];n[m]=p}}}this.nCachedObjects_=b},uncache:function(){for(var a,b,c=this._objects,d=c.length,e=this.nCachedObjects_,f=this._indicesByUUID,g=this._bindings,h=g.length,k=0,l=arguments.length;k!==l;++k){b=arguments[k].uuid;var m=f[b];if(void 0!==m)if(delete f[b],m<e){var n=--e,p=c[n];b=--d;a=c[b];f[p.uuid]=m;c[m]=p;f[a.uuid]=n;c[n]=a;c.pop();for(var p=0,r=h;p!==r;++p){a=g[p];var u=a[b];a[m]=a[n];a[n]=u;a.pop()}}else for(b=--d,a=c[b],f[a.uuid]=m,c[m]=a,c.pop(),p=0,r=h;p!==r;++p)a=g[p],a[m]=
+a[b],a.pop()}this.nCachedObjects_=e},subscribe_:function(a,b){var c=this._bindingsIndicesByPath,d=c[a],e=this._bindings;if(void 0!==d)return e[d];var f=this._paths,g=this._parsedPaths,h=this._objects,k=this.nCachedObjects_,l=Array(h.length),d=e.length;c[a]=d;f.push(a);g.push(b);e.push(l);c=k;for(d=h.length;c!==d;++c)l[c]=new na(h[c],a,b);return l},unsubscribe_:function(a){var b=this._bindingsIndicesByPath,c=b[a];if(void 0!==c){var d=this._paths,e=this._parsedPaths,f=this._bindings,g=f.length-1,h=
+f[g];b[a[g]]=c;f[c]=h;f.pop();e[c]=e[g];e.pop();d[c]=d[g];d.pop()}}});Object.assign(Xe.prototype,{play:function(){this._mixer._activateAction(this);return this},stop:function(){this._mixer._deactivateAction(this);return this.reset()},reset:function(){this.paused=!1;this.enabled=!0;this.time=0;this._loopCount=-1;this._startTime=null;return this.stopFading().stopWarping()},isRunning:function(){return this.enabled&&!this.paused&&0!==this.timeScale&&null===this._startTime&&this._mixer._isActiveAction(this)},
+isScheduled:function(){return this._mixer._isActiveAction(this)},startAt:function(a){this._startTime=a;return this},setLoop:function(a,b){this.loop=a;this.repetitions=b;return this},setEffectiveWeight:function(a){this.weight=a;this._effectiveWeight=this.enabled?a:0;return this.stopFading()},getEffectiveWeight:function(){return this._effectiveWeight},fadeIn:function(a){return this._scheduleFading(a,0,1)},fadeOut:function(a){return this._scheduleFading(a,1,0)},crossFadeFrom:function(a,b,c){a.fadeOut(b);
+this.fadeIn(b);if(c){c=this._clip.duration;var d=a._clip.duration,e=c/d;a.warp(1,d/c,b);this.warp(e,1,b)}return this},crossFadeTo:function(a,b,c){return a.crossFadeFrom(this,b,c)},stopFading:function(){var a=this._weightInterpolant;null!==a&&(this._weightInterpolant=null,this._mixer._takeBackControlInterpolant(a));return this},setEffectiveTimeScale:function(a){this.timeScale=a;this._effectiveTimeScale=this.paused?0:a;return this.stopWarping()},getEffectiveTimeScale:function(){return this._effectiveTimeScale},
+setDuration:function(a){this.timeScale=this._clip.duration/a;return this.stopWarping()},syncWith:function(a){this.time=a.time;this.timeScale=a.timeScale;return this.stopWarping()},halt:function(a){return this.warp(this._effectiveTimeScale,0,a)},warp:function(a,b,c){var d=this._mixer,e=d.time,f=this._timeScaleInterpolant,g=this.timeScale;null===f&&(this._timeScaleInterpolant=f=d._lendControlInterpolant());d=f.parameterPositions;f=f.sampleValues;d[0]=e;d[1]=e+c;f[0]=a/g;f[1]=b/g;return this},stopWarping:function(){var a=
+this._timeScaleInterpolant;null!==a&&(this._timeScaleInterpolant=null,this._mixer._takeBackControlInterpolant(a));return this},getMixer:function(){return this._mixer},getClip:function(){return this._clip},getRoot:function(){return this._localRoot||this._mixer._root},_update:function(a,b,c,d){if(this.enabled){var e=this._startTime;if(null!==e){b=(a-e)*c;if(0>b||0===c)return;this._startTime=null;b*=c}b*=this._updateTimeScale(a);c=this._updateTime(b);a=this._updateWeight(a);if(0<a){b=this._interpolants;
+for(var e=this._propertyBindings,f=0,g=b.length;f!==g;++f)b[f].evaluate(c),e[f].accumulate(d,a)}}else this._updateWeight(a)},_updateWeight:function(a){var b=0;if(this.enabled){var b=this.weight,c=this._weightInterpolant;if(null!==c){var d=c.evaluate(a)[0],b=b*d;a>c.parameterPositions[1]&&(this.stopFading(),0===d&&(this.enabled=!1))}}return this._effectiveWeight=b},_updateTimeScale:function(a){var b=0;if(!this.paused){var b=this.timeScale,c=this._timeScaleInterpolant;if(null!==c){var d=c.evaluate(a)[0],
+b=b*d;a>c.parameterPositions[1]&&(this.stopWarping(),0===b?this.paused=!0:this.timeScale=b)}}return this._effectiveTimeScale=b},_updateTime:function(a){var b=this.time+a;if(0===a)return b;var c=this._clip.duration,d=this.loop,e=this._loopCount;if(2200===d)a:{if(-1===e&&(this._loopCount=0,this._setEndings(!0,!0,!1)),b>=c)b=c;else if(0>b)b=0;else break a;this.clampWhenFinished?this.paused=!0:this.enabled=!1;this._mixer.dispatchEvent({type:"finished",action:this,direction:0>a?-1:1})}else{d=2202===d;
+-1===e&&(0<=a?(e=0,this._setEndings(!0,0===this.repetitions,d)):this._setEndings(0===this.repetitions,!0,d));if(b>=c||0>b){var f=Math.floor(b/c),b=b-c*f,e=e+Math.abs(f),g=this.repetitions-e;0>g?(this.clampWhenFinished?this.paused=!0:this.enabled=!1,b=0<a?c:0,this._mixer.dispatchEvent({type:"finished",action:this,direction:0<a?1:-1})):(0===g?(a=0>a,this._setEndings(a,!a,d)):this._setEndings(!1,!1,d),this._loopCount=e,this._mixer.dispatchEvent({type:"loop",action:this,loopDelta:f}))}if(d&&1===(e&1))return this.time=
+b,c-b}return this.time=b},_setEndings:function(a,b,c){var d=this._interpolantSettings;c?(d.endingStart=2401,d.endingEnd=2401):(d.endingStart=a?this.zeroSlopeAtStart?2401:2400:2402,d.endingEnd=b?this.zeroSlopeAtEnd?2401:2400:2402)},_scheduleFading:function(a,b,c){var d=this._mixer,e=d.time,f=this._weightInterpolant;null===f&&(this._weightInterpolant=f=d._lendControlInterpolant());d=f.parameterPositions;f=f.sampleValues;d[0]=e;f[0]=b;d[1]=e+a;f[1]=c;return this}});Object.assign(Ye.prototype,ja.prototype,
+{_bindAction:function(a,b){var c=a._localRoot||this._root,d=a._clip.tracks,e=d.length,f=a._propertyBindings;a=a._interpolants;var g=c.uuid,h=this._bindingsByRootAndName,k=h[g];void 0===k&&(k={},h[g]=k);for(h=0;h!==e;++h){var l=d[h],m=l.name,n=k[m];if(void 0===n){n=f[h];if(void 0!==n){null===n._cacheIndex&&(++n.referenceCount,this._addInactiveBinding(n,g,m));continue}n=new je(na.create(c,m,b&&b._propertyBindings[h].binding.parsedPath),l.ValueTypeName,l.getValueSize());++n.referenceCount;this._addInactiveBinding(n,
+g,m)}f[h]=n;a[h].resultBuffer=n.buffer}},_activateAction:function(a){if(!this._isActiveAction(a)){if(null===a._cacheIndex){var b=(a._localRoot||this._root).uuid,c=a._clip.uuid,d=this._actionsByClip[c];this._bindAction(a,d&&d.knownActions[0]);this._addInactiveAction(a,c,b)}b=a._propertyBindings;c=0;for(d=b.length;c!==d;++c){var e=b[c];0===e.useCount++&&(this._lendBinding(e),e.saveOriginalState())}this._lendAction(a)}},_deactivateAction:function(a){if(this._isActiveAction(a)){for(var b=a._propertyBindings,
+c=0,d=b.length;c!==d;++c){var e=b[c];0===--e.useCount&&(e.restoreOriginalState(),this._takeBackBinding(e))}this._takeBackAction(a)}},_initMemoryManager:function(){this._actions=[];this._nActiveActions=0;this._actionsByClip={};this._bindings=[];this._nActiveBindings=0;this._bindingsByRootAndName={};this._controlInterpolants=[];this._nActiveControlInterpolants=0;var a=this;this.stats={actions:{get total(){return a._actions.length},get inUse(){return a._nActiveActions}},bindings:{get total(){return a._bindings.length},
+get inUse(){return a._nActiveBindings}},controlInterpolants:{get total(){return a._controlInterpolants.length},get inUse(){return a._nActiveControlInterpolants}}}},_isActiveAction:function(a){a=a._cacheIndex;return null!==a&&a<this._nActiveActions},_addInactiveAction:function(a,b,c){var d=this._actions,e=this._actionsByClip,f=e[b];void 0===f?(f={knownActions:[a],actionByRoot:{}},a._byClipCacheIndex=0,e[b]=f):(b=f.knownActions,a._byClipCacheIndex=b.length,b.push(a));a._cacheIndex=d.length;d.push(a);
+f.actionByRoot[c]=a},_removeInactiveAction:function(a){var b=this._actions,c=b[b.length-1],d=a._cacheIndex;c._cacheIndex=d;b[d]=c;b.pop();a._cacheIndex=null;var b=a._clip.uuid,c=this._actionsByClip,d=c[b],e=d.knownActions,f=e[e.length-1],g=a._byClipCacheIndex;f._byClipCacheIndex=g;e[g]=f;e.pop();a._byClipCacheIndex=null;delete d.actionByRoot[(a._localRoot||this._root).uuid];0===e.length&&delete c[b];this._removeInactiveBindingsForAction(a)},_removeInactiveBindingsForAction:function(a){a=a._propertyBindings;
+for(var b=0,c=a.length;b!==c;++b){var d=a[b];0===--d.referenceCount&&this._removeInactiveBinding(d)}},_lendAction:function(a){var b=this._actions,c=a._cacheIndex,d=this._nActiveActions++,e=b[d];a._cacheIndex=d;b[d]=a;e._cacheIndex=c;b[c]=e},_takeBackAction:function(a){var b=this._actions,c=a._cacheIndex,d=--this._nActiveActions,e=b[d];a._cacheIndex=d;b[d]=a;e._cacheIndex=c;b[c]=e},_addInactiveBinding:function(a,b,c){var d=this._bindingsByRootAndName,e=d[b],f=this._bindings;void 0===e&&(e={},d[b]=
+e);e[c]=a;a._cacheIndex=f.length;f.push(a)},_removeInactiveBinding:function(a){var b=this._bindings,c=a.binding,d=c.rootNode.uuid,c=c.path,e=this._bindingsByRootAndName,f=e[d],g=b[b.length-1];a=a._cacheIndex;g._cacheIndex=a;b[a]=g;b.pop();delete f[c];a:{for(var h in f)break a;delete e[d]}},_lendBinding:function(a){var b=this._bindings,c=a._cacheIndex,d=this._nActiveBindings++,e=b[d];a._cacheIndex=d;b[d]=a;e._cacheIndex=c;b[c]=e},_takeBackBinding:function(a){var b=this._bindings,c=a._cacheIndex,d=
+--this._nActiveBindings,e=b[d];a._cacheIndex=d;b[d]=a;e._cacheIndex=c;b[c]=e},_lendControlInterpolant:function(){var a=this._controlInterpolants,b=this._nActiveControlInterpolants++,c=a[b];void 0===c&&(c=new Yc(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer),c.__cacheIndex=b,a[b]=c);return c},_takeBackControlInterpolant:function(a){var b=this._controlInterpolants,c=a.__cacheIndex,d=--this._nActiveControlInterpolants,e=b[d];a.__cacheIndex=d;b[d]=a;e.__cacheIndex=c;
+b[c]=e},_controlInterpolantsResultBuffer:new Float32Array(1),clipAction:function(a,b){var c=b||this._root,d=c.uuid,c="string"===typeof a?ka.findByName(c,a):a;a=null!==c?c.uuid:a;var e=this._actionsByClip[a],f=null;if(void 0!==e){f=e.actionByRoot[d];if(void 0!==f)return f;f=e.knownActions[0];null===c&&(c=f._clip)}if(null===c)return null;b=new Xe(this,c,b);this._bindAction(b,f);this._addInactiveAction(b,a,d);return b},existingAction:function(a,b){var c=b||this._root;b=c.uuid;c="string"===typeof a?ka.findByName(c,
+a):a;a=this._actionsByClip[c?c.uuid:a];return void 0!==a?a.actionByRoot[b]||null:null},stopAllAction:function(){for(var a=this._actions,b=this._nActiveActions,c=this._bindings,d=this._nActiveBindings,e=this._nActiveBindings=this._nActiveActions=0;e!==b;++e)a[e].reset();for(e=0;e!==d;++e)c[e].useCount=0;return this},update:function(a){a*=this.timeScale;for(var b=this._actions,c=this._nActiveActions,d=this.time+=a,e=Math.sign(a),f=this._accuIndex^=1,g=0;g!==c;++g)b[g]._update(d,a,e,f);a=this._bindings;
+b=this._nActiveBindings;for(g=0;g!==b;++g)a[g].apply(f);return this},getRoot:function(){return this._root},uncacheClip:function(a){var b=this._actions;a=a.uuid;var c=this._actionsByClip,d=c[a];if(void 0!==d){for(var d=d.knownActions,e=0,f=d.length;e!==f;++e){var g=d[e];this._deactivateAction(g);var h=g._cacheIndex,k=b[b.length-1];g._cacheIndex=null;g._byClipCacheIndex=null;k._cacheIndex=h;b[h]=k;b.pop();this._removeInactiveBindingsForAction(g)}delete c[a]}},uncacheRoot:function(a){a=a.uuid;var b=
+this._actionsByClip;for(d in b){var c=b[d].actionByRoot[a];void 0!==c&&(this._deactivateAction(c),this._removeInactiveAction(c))}var d=this._bindingsByRootAndName[a];if(void 0!==d)for(var e in d)a=d[e],a.restoreOriginalState(),this._removeInactiveBinding(a)},uncacheAction:function(a,b){a=this.existingAction(a,b);null!==a&&(this._deactivateAction(a),this._removeInactiveAction(a))}});Jd.prototype.clone=function(){return new Jd(void 0===this.value.clone?this.value:this.value.clone())};ke.prototype=Object.assign(Object.create(D.prototype),
+{constructor:ke,isInstancedBufferGeometry:!0,copy:function(a){D.prototype.copy.call(this,a);this.maxInstancedCount=a.maxInstancedCount;return this},clone:function(){return(new this.constructor).copy(this)}});Object.defineProperties(le.prototype,{count:{get:function(){return this.data.count}},array:{get:function(){return this.data.array}}});Object.assign(le.prototype,{isInterleavedBufferAttribute:!0,setX:function(a,b){this.data.array[a*this.data.stride+this.offset]=b;return this},setY:function(a,b){this.data.array[a*
+this.data.stride+this.offset+1]=b;return this},setZ:function(a,b){this.data.array[a*this.data.stride+this.offset+2]=b;return this},setW:function(a,b){this.data.array[a*this.data.stride+this.offset+3]=b;return this},getX:function(a){return this.data.array[a*this.data.stride+this.offset]},getY:function(a){return this.data.array[a*this.data.stride+this.offset+1]},getZ:function(a){return this.data.array[a*this.data.stride+this.offset+2]},getW:function(a){return this.data.array[a*this.data.stride+this.offset+
+3]},setXY:function(a,b,c){a=a*this.data.stride+this.offset;this.data.array[a+0]=b;this.data.array[a+1]=c;return this},setXYZ:function(a,b,c,d){a=a*this.data.stride+this.offset;this.data.array[a+0]=b;this.data.array[a+1]=c;this.data.array[a+2]=d;return this},setXYZW:function(a,b,c,d,e){a=a*this.data.stride+this.offset;this.data.array[a+0]=b;this.data.array[a+1]=c;this.data.array[a+2]=d;this.data.array[a+3]=e;return this}});Object.defineProperty(mc.prototype,"needsUpdate",{set:function(a){!0===a&&this.version++}});
+Object.assign(mc.prototype,{isInterleavedBuffer:!0,setArray:function(a){if(Array.isArray(a))throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");this.count=void 0!==a?a.length/this.stride:0;this.array=a},setDynamic:function(a){this.dynamic=a;return this},copy:function(a){this.array=new a.array.constructor(a.array);this.count=a.count;this.stride=a.stride;this.dynamic=a.dynamic;return this},copyAt:function(a,b,c){a*=this.stride;c*=b.stride;for(var d=0,e=this.stride;d<e;d++)this.array[a+
+d]=b.array[c+d];return this},set:function(a,b){void 0===b&&(b=0);this.array.set(a,b);return this},clone:function(){return(new this.constructor).copy(this)},onUpload:function(a){this.onUploadCallback=a;return this}});me.prototype=Object.assign(Object.create(mc.prototype),{constructor:me,isInstancedInterleavedBuffer:!0,copy:function(a){mc.prototype.copy.call(this,a);this.meshPerAttribute=a.meshPerAttribute;return this}});ne.prototype=Object.assign(Object.create(P.prototype),{constructor:ne,isInstancedBufferAttribute:!0,
+copy:function(a){P.prototype.copy.call(this,a);this.meshPerAttribute=a.meshPerAttribute;return this}});Object.assign(Ze.prototype,{linePrecision:1,set:function(a,b){this.ray.set(a,b)},setFromCamera:function(a,b){b&&b.isPerspectiveCamera?(this.ray.origin.setFromMatrixPosition(b.matrixWorld),this.ray.direction.set(a.x,a.y,.5).unproject(b).sub(this.ray.origin).normalize()):b&&b.isOrthographicCamera?(this.ray.origin.set(a.x,a.y,(b.near+b.far)/(b.near-b.far)).unproject(b),this.ray.direction.set(0,0,-1).transformDirection(b.matrixWorld)):
+console.error("THREE.Raycaster: Unsupported camera type.")},intersectObject:function(a,b){var c=[];oe(a,this,c,b);c.sort($e);return c},intersectObjects:function(a,b){var c=[];if(!1===Array.isArray(a))return console.warn("THREE.Raycaster.intersectObjects: objects is not an Array."),c;for(var d=0,e=a.length;d<e;d++)oe(a[d],this,c,b);c.sort($e);return c}});Object.assign(af.prototype,{start:function(){this.oldTime=this.startTime=("undefined"===typeof performance?Date:performance).now();this.elapsedTime=
+0;this.running=!0},stop:function(){this.getElapsedTime();this.autoStart=this.running=!1},getElapsedTime:function(){this.getDelta();return this.elapsedTime},getDelta:function(){var a=0;if(this.autoStart&&!this.running)return this.start(),0;if(this.running){var b=("undefined"===typeof performance?Date:performance).now(),a=(b-this.oldTime)/1E3;this.oldTime=b;this.elapsedTime+=a}return a}});Object.assign(bf.prototype,{set:function(a,b,c){this.radius=a;this.phi=b;this.theta=c;return this},clone:function(){return(new this.constructor).copy(this)},
+copy:function(a){this.radius=a.radius;this.phi=a.phi;this.theta=a.theta;return this},makeSafe:function(){this.phi=Math.max(1E-6,Math.min(Math.PI-1E-6,this.phi));return this},setFromVector3:function(a){this.radius=a.length();0===this.radius?this.phi=this.theta=0:(this.theta=Math.atan2(a.x,a.z),this.phi=Math.acos(R.clamp(a.y/this.radius,-1,1)));return this}});Object.assign(cf.prototype,{set:function(a,b,c){this.radius=a;this.theta=b;this.y=c;return this},clone:function(){return(new this.constructor).copy(this)},
+copy:function(a){this.radius=a.radius;this.theta=a.theta;this.y=a.y;return this},setFromVector3:function(a){this.radius=Math.sqrt(a.x*a.x+a.z*a.z);this.theta=Math.atan2(a.x,a.z);this.y=a.y;return this}});ad.prototype=Object.create(A.prototype);ad.prototype.constructor=ad;ad.prototype.isImmediateRenderObject=!0;bd.prototype=Object.create(ca.prototype);bd.prototype.constructor=bd;bd.prototype.update=function(){var a=new p,b=new p,c=new ra;return function(){var d,e=["a","b","c"];this.object.updateMatrixWorld(!0);
+c.getNormalMatrix(this.object.matrixWorld);var f=this.object.matrixWorld,g=this.geometry.attributes.position;if((d=this.object.geometry)&&d.isGeometry)for(var h=d.vertices,k=d.faces,l=d=0,m=k.length;l<m;l++)for(var n=k[l],p=0,r=n.vertexNormals.length;p<r;p++){var u=n.vertexNormals[p];a.copy(h[n[e[p]]]).applyMatrix4(f);b.copy(u).applyMatrix3(c).normalize().multiplyScalar(this.size).add(a);g.setXYZ(d,a.x,a.y,a.z);d+=1;g.setXYZ(d,b.x,b.y,b.z);d+=1}else if(d&&d.isBufferGeometry)for(e=d.attributes.position,
+h=d.attributes.normal,p=d=0,r=e.count;p<r;p++)a.set(e.getX(p),e.getY(p),e.getZ(p)).applyMatrix4(f),b.set(h.getX(p),h.getY(p),h.getZ(p)),b.applyMatrix3(c).normalize().multiplyScalar(this.size).add(a),g.setXYZ(d,a.x,a.y,a.z),d+=1,g.setXYZ(d,b.x,b.y,b.z),d+=1;g.needsUpdate=!0}}();nc.prototype=Object.create(A.prototype);nc.prototype.constructor=nc;nc.prototype.dispose=function(){this.cone.geometry.dispose();this.cone.material.dispose()};nc.prototype.update=function(){var a=new p,b=new p;return function(){this.light.updateMatrixWorld();
+var c=this.light.distance?this.light.distance:1E3,d=c*Math.tan(this.light.angle);this.cone.scale.set(d,d,c);a.setFromMatrixPosition(this.light.matrixWorld);b.setFromMatrixPosition(this.light.target.matrixWorld);this.cone.lookAt(b.sub(a));void 0!==this.color?this.cone.material.color.set(this.color):this.cone.material.color.copy(this.light.color)}}();oc.prototype=Object.create(ca.prototype);oc.prototype.constructor=oc;oc.prototype.updateMatrixWorld=function(){var a=new p,b=new K,c=new K;return function(d){var e=
+this.bones,f=this.geometry,g=f.getAttribute("position");c.getInverse(this.root.matrixWorld);for(var h=0,k=0;h<e.length;h++){var l=e[h];l.parent&&l.parent.isBone&&(b.multiplyMatrices(c,l.matrixWorld),a.setFromMatrixPosition(b),g.setXYZ(k,a.x,a.y,a.z),b.multiplyMatrices(c,l.parent.matrixWorld),a.setFromMatrixPosition(b),g.setXYZ(k+1,a.x,a.y,a.z),k+=2)}f.getAttribute("position").needsUpdate=!0;A.prototype.updateMatrixWorld.call(this,d)}}();pc.prototype=Object.create(pa.prototype);pc.prototype.constructor=
+pc;pc.prototype.dispose=function(){this.geometry.dispose();this.material.dispose()};pc.prototype.update=function(){void 0!==this.color?this.material.color.set(this.color):this.material.color.copy(this.light.color)};qc.prototype=Object.create(A.prototype);qc.prototype.constructor=qc;qc.prototype.dispose=function(){this.children[0].geometry.dispose();this.children[0].material.dispose()};qc.prototype.update=function(){var a=.5*this.light.width,b=.5*this.light.height,c=this.line.geometry.attributes.position,
+d=c.array;d[0]=a;d[1]=-b;d[2]=0;d[3]=a;d[4]=b;d[5]=0;d[6]=-a;d[7]=b;d[8]=0;d[9]=-a;d[10]=-b;d[11]=0;d[12]=a;d[13]=-b;d[14]=0;c.needsUpdate=!0;void 0!==this.color?this.line.material.color.set(this.color):this.line.material.color.copy(this.light.color)};rc.prototype=Object.create(A.prototype);rc.prototype.constructor=rc;rc.prototype.dispose=function(){this.children[0].geometry.dispose();this.children[0].material.dispose()};rc.prototype.update=function(){var a=new p,b=new H,c=new H;return function(){var d=
+this.children[0];if(void 0!==this.color)this.material.color.set(this.color);else{var e=d.geometry.getAttribute("color");b.copy(this.light.color);c.copy(this.light.groundColor);for(var f=0,g=e.count;f<g;f++){var h=f<g/2?b:c;e.setXYZ(f,h.r,h.g,h.b)}e.needsUpdate=!0}d.lookAt(a.setFromMatrixPosition(this.light.matrixWorld).negate())}}();cd.prototype=Object.create(ca.prototype);cd.prototype.constructor=cd;Kd.prototype=Object.create(ca.prototype);Kd.prototype.constructor=Kd;dd.prototype=Object.create(ca.prototype);
+dd.prototype.constructor=dd;dd.prototype.update=function(){var a=new p,b=new p,c=new ra;return function(){this.object.updateMatrixWorld(!0);c.getNormalMatrix(this.object.matrixWorld);for(var d=this.object.matrixWorld,e=this.geometry.attributes.position,f=this.object.geometry,g=f.vertices,f=f.faces,h=0,k=0,l=f.length;k<l;k++){var m=f[k],n=m.normal;a.copy(g[m.a]).add(g[m.b]).add(g[m.c]).divideScalar(3).applyMatrix4(d);b.copy(n).applyMatrix3(c).normalize().multiplyScalar(this.size).add(a);e.setXYZ(h,
+a.x,a.y,a.z);h+=1;e.setXYZ(h,b.x,b.y,b.z);h+=1}e.needsUpdate=!0}}();sc.prototype=Object.create(A.prototype);sc.prototype.constructor=sc;sc.prototype.dispose=function(){this.lightPlane.geometry.dispose();this.lightPlane.material.dispose();this.targetLine.geometry.dispose();this.targetLine.material.dispose()};sc.prototype.update=function(){var a=new p,b=new p,c=new p;return function(){a.setFromMatrixPosition(this.light.matrixWorld);b.setFromMatrixPosition(this.light.target.matrixWorld);c.subVectors(b,
+a);this.lightPlane.lookAt(c);void 0!==this.color?(this.lightPlane.material.color.set(this.color),this.targetLine.material.color.set(this.color)):(this.lightPlane.material.color.copy(this.light.color),this.targetLine.material.color.copy(this.light.color));this.targetLine.lookAt(c);this.targetLine.scale.z=c.length()}}();ed.prototype=Object.create(ca.prototype);ed.prototype.constructor=ed;ed.prototype.update=function(){function a(a,g,h,k){d.set(g,h,k).unproject(e);a=c[a];if(void 0!==a)for(g=b.getAttribute("position"),
+h=0,k=a.length;h<k;h++)g.setXYZ(a[h],d.x,d.y,d.z)}var b,c,d=new p,e=new La;return function(){b=this.geometry;c=this.pointMap;e.projectionMatrix.copy(this.camera.projectionMatrix);a("c",0,0,-1);a("t",0,0,1);a("n1",-1,-1,-1);a("n2",1,-1,-1);a("n3",-1,1,-1);a("n4",1,1,-1);a("f1",-1,-1,1);a("f2",1,-1,1);a("f3",-1,1,1);a("f4",1,1,1);a("u1",.7,1.1,-1);a("u2",-.7,1.1,-1);a("u3",0,2,-1);a("cf1",-1,0,1);a("cf2",1,0,1);a("cf3",0,-1,1);a("cf4",0,1,1);a("cn1",-1,0,-1);a("cn2",1,0,-1);a("cn3",0,-1,-1);a("cn4",
+0,1,-1);b.getAttribute("position").needsUpdate=!0}}();Db.prototype=Object.create(ca.prototype);Db.prototype.constructor=Db;Db.prototype.update=function(){var a=new Oa;return function(b){void 0!==b&&console.warn("THREE.BoxHelper: .update() has no longer arguments.");void 0!==this.object&&a.setFromObject(this.object);if(!a.isEmpty()){b=a.min;var c=a.max,d=this.geometry.attributes.position,e=d.array;e[0]=c.x;e[1]=c.y;e[2]=c.z;e[3]=b.x;e[4]=c.y;e[5]=c.z;e[6]=b.x;e[7]=b.y;e[8]=c.z;e[9]=c.x;e[10]=b.y;e[11]=
+c.z;e[12]=c.x;e[13]=c.y;e[14]=b.z;e[15]=b.x;e[16]=c.y;e[17]=b.z;e[18]=b.x;e[19]=b.y;e[20]=b.z;e[21]=c.x;e[22]=b.y;e[23]=b.z;d.needsUpdate=!0;this.geometry.computeBoundingSphere()}}}();Db.prototype.setFromObject=function(a){this.object=a;this.update();return this};fd.prototype=Object.create(ca.prototype);fd.prototype.constructor=fd;fd.prototype.updateMatrixWorld=function(a){var b=this.box;b.isEmpty()||(b.getCenter(this.position),b.getSize(this.scale),this.scale.multiplyScalar(.5),A.prototype.updateMatrixWorld.call(this,
+a))};gd.prototype=Object.create(ma.prototype);gd.prototype.constructor=gd;gd.prototype.updateMatrixWorld=function(a){var b=-this.plane.constant;1E-8>Math.abs(b)&&(b=1E-8);this.scale.set(.5*this.size,.5*this.size,b);this.lookAt(this.plane.normal);A.prototype.updateMatrixWorld.call(this,a)};var Ld,pe;Eb.prototype=Object.create(A.prototype);Eb.prototype.constructor=Eb;Eb.prototype.setDirection=function(){var a=new p,b;return function(c){.99999<c.y?this.quaternion.set(0,0,0,1):-.99999>c.y?this.quaternion.set(1,
+0,0,0):(a.set(c.z,0,-c.x).normalize(),b=Math.acos(c.y),this.quaternion.setFromAxisAngle(a,b))}}();Eb.prototype.setLength=function(a,b,c){void 0===b&&(b=.2*a);void 0===c&&(c=.2*b);this.line.scale.set(1,Math.max(0,a-b),1);this.line.updateMatrix();this.cone.scale.set(c,b,c);this.cone.position.y=a;this.cone.updateMatrix()};Eb.prototype.setColor=function(a){this.line.material.color.copy(a);this.cone.material.color.copy(a)};hd.prototype=Object.create(ca.prototype);hd.prototype.constructor=hd;var Nd=new p,
+te=new qe,ue=new qe,ve=new qe;ya.prototype=Object.create(S.prototype);ya.prototype.constructor=ya;ya.prototype.isCatmullRomCurve3=!0;ya.prototype.getPoint=function(a,b){b=b||new p;var c=this.points,d=c.length;a*=d-(this.closed?0:1);var e=Math.floor(a);a-=e;this.closed?e+=0<e?0:(Math.floor(Math.abs(e)/c.length)+1)*c.length:0===a&&e===d-1&&(e=d-2,a=1);if(this.closed||0<e)var f=c[(e-1)%d];else Nd.subVectors(c[0],c[1]).add(c[0]),f=Nd;var g=c[e%d];var h=c[(e+1)%d];this.closed||e+2<d?c=c[(e+2)%d]:(Nd.subVectors(c[d-
+1],c[d-2]).add(c[d-1]),c=Nd);if("centripetal"===this.curveType||"chordal"===this.curveType){var k="chordal"===this.curveType?.5:.25,d=Math.pow(f.distanceToSquared(g),k),e=Math.pow(g.distanceToSquared(h),k),k=Math.pow(h.distanceToSquared(c),k);1E-4>e&&(e=1);1E-4>d&&(d=e);1E-4>k&&(k=e);te.initNonuniformCatmullRom(f.x,g.x,h.x,c.x,d,e,k);ue.initNonuniformCatmullRom(f.y,g.y,h.y,c.y,d,e,k);ve.initNonuniformCatmullRom(f.z,g.z,h.z,c.z,d,e,k)}else"catmullrom"===this.curveType&&(te.initCatmullRom(f.x,g.x,h.x,
+c.x,this.tension),ue.initCatmullRom(f.y,g.y,h.y,c.y,this.tension),ve.initCatmullRom(f.z,g.z,h.z,c.z,this.tension));b.set(te.calc(a),ue.calc(a),ve.calc(a));return b};ya.prototype.copy=function(a){S.prototype.copy.call(this,a);this.points=[];for(var b=0,c=a.points.length;b<c;b++)this.points.push(a.points[b].clone());this.closed=a.closed;this.curveType=a.curveType;this.tension=a.tension;return this};Fb.prototype=Object.create(S.prototype);Fb.prototype.constructor=Fb;Fb.prototype.isCubicBezierCurve3=
+!0;Fb.prototype.getPoint=function(a,b){b=b||new p;var c=this.v0,d=this.v1,e=this.v2,f=this.v3;b.set(zb(a,c.x,d.x,e.x,f.x),zb(a,c.y,d.y,e.y,f.y),zb(a,c.z,d.z,e.z,f.z));return b};Fb.prototype.copy=function(a){S.prototype.copy.call(this,a);this.v0.copy(a.v0);this.v1.copy(a.v1);this.v2.copy(a.v2);this.v3.copy(a.v3);return this};Gb.prototype=Object.create(S.prototype);Gb.prototype.constructor=Gb;Gb.prototype.isQuadraticBezierCurve3=!0;Gb.prototype.getPoint=function(a,b){b=b||new p;var c=this.v0,d=this.v1,
+e=this.v2;b.set(yb(a,c.x,d.x,e.x),yb(a,c.y,d.y,e.y),yb(a,c.z,d.z,e.z));return b};Gb.prototype.copy=function(a){S.prototype.copy.call(this,a);this.v0.copy(a.v0);this.v1.copy(a.v1);this.v2.copy(a.v2);return this};db.prototype=Object.create(S.prototype);db.prototype.constructor=db;db.prototype.isLineCurve3=!0;db.prototype.getPoint=function(a,b){b=b||new p;1===a?b.copy(this.v2):(b.copy(this.v2).sub(this.v1),b.multiplyScalar(a).add(this.v1));return b};db.prototype.getPointAt=function(a,b){return this.getPoint(a,
+b)};db.prototype.copy=function(a){S.prototype.copy.call(this,a);this.v1.copy(a.v1);this.v2.copy(a.v2);return this};id.prototype=Object.create(Na.prototype);id.prototype.constructor=id;id.prototype.isArcCurve=!0;S.create=function(a,b){console.log("THREE.Curve.create() has been deprecated");a.prototype=Object.create(S.prototype);a.prototype.constructor=a;a.prototype.getPoint=b;return a};Object.assign(Ab.prototype,{createPointsGeometry:function(a){console.warn("THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.");
+a=this.getPoints(a);return this.createGeometry(a)},createSpacedPointsGeometry:function(a){console.warn("THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.");a=this.getSpacedPoints(a);return this.createGeometry(a)},createGeometry:function(a){console.warn("THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.");for(var b=new N,c=0,d=a.length;c<d;c++){var e=a[c];b.vertices.push(new p(e.x,
+e.y,e.z||0))}return b}});Object.assign(Bb.prototype,{fromPoints:function(a){console.warn("THREE.Path: .fromPoints() has been renamed to .setFromPoints().");this.setFromPoints(a)}});ef.prototype=Object.create(ya.prototype);ff.prototype=Object.create(ya.prototype);re.prototype=Object.create(ya.prototype);Object.assign(re.prototype,{initFromArray:function(){console.error("THREE.Spline: .initFromArray() has been removed.")},getControlPointsArray:function(){console.error("THREE.Spline: .getControlPointsArray() has been removed.")},
+reparametrizeByArcLength:function(){console.error("THREE.Spline: .reparametrizeByArcLength() has been removed.")}});cd.prototype.setColors=function(){console.error("THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.")};oc.prototype.update=function(){console.error("THREE.SkeletonHelper: update() no longer needs to be called.")};Object.assign(kd.prototype,{center:function(a){console.warn("THREE.Box2: .center() has been renamed to .getCenter().");return this.getCenter(a)},
+empty:function(){console.warn("THREE.Box2: .empty() has been renamed to .isEmpty().");return this.isEmpty()},isIntersectionBox:function(a){console.warn("THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().");return this.intersectsBox(a)},size:function(a){console.warn("THREE.Box2: .size() has been renamed to .getSize().");return this.getSize(a)}});Object.assign(Oa.prototype,{center:function(a){console.warn("THREE.Box3: .center() has been renamed to .getCenter().");return this.getCenter(a)},
+empty:function(){console.warn("THREE.Box3: .empty() has been renamed to .isEmpty().");return this.isEmpty()},isIntersectionBox:function(a){console.warn("THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().");return this.intersectsBox(a)},isIntersectionSphere:function(a){console.warn("THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().");return this.intersectsSphere(a)},size:function(a){console.warn("THREE.Box3: .size() has been renamed to .getSize().");return this.getSize(a)}});
+Mb.prototype.center=function(a){console.warn("THREE.Line3: .center() has been renamed to .getCenter().");return this.getCenter(a)};Object.assign(R,{random16:function(){console.warn("THREE.Math: .random16() has been deprecated. Use Math.random() instead.");return Math.random()},nearestPowerOfTwo:function(a){console.warn("THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().");return R.floorPowerOfTwo(a)},nextPowerOfTwo:function(a){console.warn("THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().");
+return R.ceilPowerOfTwo(a)}});Object.assign(ra.prototype,{flattenToArrayOffset:function(a,b){console.warn("THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.");return this.toArray(a,b)},multiplyVector3:function(a){console.warn("THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.");return a.applyMatrix3(this)},multiplyVector3Array:function(){console.error("THREE.Matrix3: .multiplyVector3Array() has been removed.")},applyToBuffer:function(a){console.warn("THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.");
+return this.applyToBufferAttribute(a)},applyToVector3Array:function(){console.error("THREE.Matrix3: .applyToVector3Array() has been removed.")}});Object.assign(K.prototype,{extractPosition:function(a){console.warn("THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().");return this.copyPosition(a)},flattenToArrayOffset:function(a,b){console.warn("THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.");return this.toArray(a,b)},getPosition:function(){var a;
+return function(){void 0===a&&(a=new p);console.warn("THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.");return a.setFromMatrixColumn(this,3)}}(),setRotationFromQuaternion:function(a){console.warn("THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().");return this.makeRotationFromQuaternion(a)},multiplyToArray:function(){console.warn("THREE.Matrix4: .multiplyToArray() has been removed.")},multiplyVector3:function(a){console.warn("THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.");
+return a.applyMatrix4(this)},multiplyVector4:function(a){console.warn("THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.");return a.applyMatrix4(this)},multiplyVector3Array:function(){console.error("THREE.Matrix4: .multiplyVector3Array() has been removed.")},rotateAxis:function(a){console.warn("THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.");a.transformDirection(this)},crossVector:function(a){console.warn("THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.");
+return a.applyMatrix4(this)},translate:function(){console.error("THREE.Matrix4: .translate() has been removed.")},rotateX:function(){console.error("THREE.Matrix4: .rotateX() has been removed.")},rotateY:function(){console.error("THREE.Matrix4: .rotateY() has been removed.")},rotateZ:function(){console.error("THREE.Matrix4: .rotateZ() has been removed.")},rotateByAxis:function(){console.error("THREE.Matrix4: .rotateByAxis() has been removed.")},applyToBuffer:function(a){console.warn("THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.");
+return this.applyToBufferAttribute(a)},applyToVector3Array:function(){console.error("THREE.Matrix4: .applyToVector3Array() has been removed.")},makeFrustum:function(a,b,c,d,e,f){console.warn("THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.");return this.makePerspective(a,b,d,c,e,f)}});Aa.prototype.isIntersectionLine=function(a){console.warn("THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().");return this.intersectsLine(a)};
+Z.prototype.multiplyVector3=function(a){console.warn("THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.");return a.applyQuaternion(this)};Object.assign(lb.prototype,{isIntersectionBox:function(a){console.warn("THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().");return this.intersectsBox(a)},isIntersectionPlane:function(a){console.warn("THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().");return this.intersectsPlane(a)},
+isIntersectionSphere:function(a){console.warn("THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().");return this.intersectsSphere(a)}});Object.assign(Cb.prototype,{extractAllPoints:function(a){console.warn("THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.");return this.extractPoints(a)},extrude:function(a){console.warn("THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.");return new $a(this,a)},makeGeometry:function(a){console.warn("THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.");
+return new cc(this,a)}});Object.assign(C.prototype,{fromAttribute:function(a,b,c){console.warn("THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().");return this.fromBufferAttribute(a,b,c)},distanceToManhattan:function(a){console.warn("THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().");return this.manhattanDistanceTo(a)},lengthManhattan:function(){console.warn("THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().");return this.manhattanLength()}});
+Object.assign(p.prototype,{setEulerFromRotationMatrix:function(){console.error("THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.")},setEulerFromQuaternion:function(){console.error("THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.")},getPositionFromMatrix:function(a){console.warn("THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().");return this.setFromMatrixPosition(a)},
+getScaleFromMatrix:function(a){console.warn("THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().");return this.setFromMatrixScale(a)},getColumnFromMatrix:function(a,b){console.warn("THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().");return this.setFromMatrixColumn(b,a)},applyProjection:function(a){console.warn("THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.");return this.applyMatrix4(a)},fromAttribute:function(a,
+b,c){console.warn("THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().");return this.fromBufferAttribute(a,b,c)},distanceToManhattan:function(a){console.warn("THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().");return this.manhattanDistanceTo(a)},lengthManhattan:function(){console.warn("THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().");return this.manhattanLength()}});Object.assign(da.prototype,{fromAttribute:function(a,
+b,c){console.warn("THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().");return this.fromBufferAttribute(a,b,c)},lengthManhattan:function(){console.warn("THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().");return this.manhattanLength()}});N.prototype.computeTangents=function(){console.warn("THREE.Geometry: .computeTangents() has been removed.")};Object.assign(A.prototype,{getChildByName:function(a){console.warn("THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().");
+return this.getObjectByName(a)},renderDepth:function(){console.warn("THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.")},translate:function(a,b){console.warn("THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.");return this.translateOnAxis(b,a)}});Object.defineProperties(A.prototype,{eulerOrder:{get:function(){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order.");return this.rotation.order},set:function(a){console.warn("THREE.Object3D: .eulerOrder is now .rotation.order.");
+this.rotation.order=a}},useQuaternion:{get:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")},set:function(){console.warn("THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.")}}});Object.defineProperties(Dc.prototype,{objects:{get:function(){console.warn("THREE.LOD: .objects has been renamed to .levels.");return this.levels}}});Object.defineProperty(Ec.prototype,"useVertexTexture",{get:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")},
+set:function(){console.warn("THREE.Skeleton: useVertexTexture has been removed.")}});Object.defineProperty(S.prototype,"__arcLengthDivisions",{get:function(){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.");return this.arcLengthDivisions},set:function(a){console.warn("THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.");this.arcLengthDivisions=a}});U.prototype.setLens=function(a,b){console.warn("THREE.PerspectiveCamera.setLens is deprecated. Use .setFocalLength and .filmGauge for a photographic setup.");
+void 0!==b&&(this.filmGauge=b);this.setFocalLength(a)};Object.defineProperties(ga.prototype,{onlyShadow:{set:function(){console.warn("THREE.Light: .onlyShadow has been removed.")}},shadowCameraFov:{set:function(a){console.warn("THREE.Light: .shadowCameraFov is now .shadow.camera.fov.");this.shadow.camera.fov=a}},shadowCameraLeft:{set:function(a){console.warn("THREE.Light: .shadowCameraLeft is now .shadow.camera.left.");this.shadow.camera.left=a}},shadowCameraRight:{set:function(a){console.warn("THREE.Light: .shadowCameraRight is now .shadow.camera.right.");
+this.shadow.camera.right=a}},shadowCameraTop:{set:function(a){console.warn("THREE.Light: .shadowCameraTop is now .shadow.camera.top.");this.shadow.camera.top=a}},shadowCameraBottom:{set:function(a){console.warn("THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.");this.shadow.camera.bottom=a}},shadowCameraNear:{set:function(a){console.warn("THREE.Light: .shadowCameraNear is now .shadow.camera.near.");this.shadow.camera.near=a}},shadowCameraFar:{set:function(a){console.warn("THREE.Light: .shadowCameraFar is now .shadow.camera.far.");
+this.shadow.camera.far=a}},shadowCameraVisible:{set:function(){console.warn("THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.")}},shadowBias:{set:function(a){console.warn("THREE.Light: .shadowBias is now .shadow.bias.");this.shadow.bias=a}},shadowDarkness:{set:function(){console.warn("THREE.Light: .shadowDarkness has been removed.")}},shadowMapWidth:{set:function(a){console.warn("THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.");
+this.shadow.mapSize.width=a}},shadowMapHeight:{set:function(a){console.warn("THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.");this.shadow.mapSize.height=a}}});Object.defineProperties(P.prototype,{length:{get:function(){console.warn("THREE.BufferAttribute: .length has been deprecated. Use .count instead.");return this.array.length}}});Object.assign(D.prototype,{addIndex:function(a){console.warn("THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().");this.setIndex(a)},addDrawCall:function(a,
+b,c){void 0!==c&&console.warn("THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.");console.warn("THREE.BufferGeometry: .addDrawCall() is now .addGroup().");this.addGroup(a,b)},clearDrawCalls:function(){console.warn("THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().");this.clearGroups()},computeTangents:function(){console.warn("THREE.BufferGeometry: .computeTangents() has been removed.")},computeOffsets:function(){console.warn("THREE.BufferGeometry: .computeOffsets() has been removed.")}});
+Object.defineProperties(D.prototype,{drawcalls:{get:function(){console.error("THREE.BufferGeometry: .drawcalls has been renamed to .groups.");return this.groups}},offsets:{get:function(){console.warn("THREE.BufferGeometry: .offsets has been renamed to .groups.");return this.groups}}});Object.defineProperties(Jd.prototype,{dynamic:{set:function(){console.warn("THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.")}},onUpdate:{value:function(){console.warn("THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.");
+return this}}});Object.defineProperties(Q.prototype,{wrapAround:{get:function(){console.warn("THREE.Material: .wrapAround has been removed.")},set:function(){console.warn("THREE.Material: .wrapAround has been removed.")}},wrapRGB:{get:function(){console.warn("THREE.Material: .wrapRGB has been removed.");return new H}},shading:{get:function(){console.error("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")},set:function(a){console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.");
+this.flatShading=1===a}}});Object.defineProperties(Ia.prototype,{metal:{get:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.");return!1},set:function(){console.warn("THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead")}}});Object.defineProperties(oa.prototype,{derivatives:{get:function(){console.warn("THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.");return this.extensions.derivatives},
+set:function(a){console.warn("THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.");this.extensions.derivatives=a}}});Object.assign(Wd.prototype,{getCurrentRenderTarget:function(){console.warn("THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().");return this.getRenderTarget()},getMaxAnisotropy:function(){console.warn("THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().");return this.capabilities.getMaxAnisotropy()},getPrecision:function(){console.warn("THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.");
+return this.capabilities.precision},resetGLState:function(){console.warn("THREE.WebGLRenderer: .resetGLState() is now .state.reset().");return this.state.reset()},supportsFloatTextures:function(){console.warn("THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( 'OES_texture_float' ).");return this.extensions.get("OES_texture_float")},supportsHalfFloatTextures:function(){console.warn("THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( 'OES_texture_half_float' ).");
+return this.extensions.get("OES_texture_half_float")},supportsStandardDerivatives:function(){console.warn("THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( 'OES_standard_derivatives' ).");return this.extensions.get("OES_standard_derivatives")},supportsCompressedTextureS3TC:function(){console.warn("THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( 'WEBGL_compressed_texture_s3tc' ).");return this.extensions.get("WEBGL_compressed_texture_s3tc")},
+supportsCompressedTexturePVRTC:function(){console.warn("THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( 'WEBGL_compressed_texture_pvrtc' ).");return this.extensions.get("WEBGL_compressed_texture_pvrtc")},supportsBlendMinMax:function(){console.warn("THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( 'EXT_blend_minmax' ).");return this.extensions.get("EXT_blend_minmax")},supportsVertexTextures:function(){console.warn("THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.");
+return this.capabilities.vertexTextures},supportsInstancedArrays:function(){console.warn("THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( 'ANGLE_instanced_arrays' ).");return this.extensions.get("ANGLE_instanced_arrays")},enableScissorTest:function(a){console.warn("THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().");this.setScissorTest(a)},initMaterial:function(){console.warn("THREE.WebGLRenderer: .initMaterial() has been removed.")},addPrePlugin:function(){console.warn("THREE.WebGLRenderer: .addPrePlugin() has been removed.")},
+addPostPlugin:function(){console.warn("THREE.WebGLRenderer: .addPostPlugin() has been removed.")},updateShadowMap:function(){console.warn("THREE.WebGLRenderer: .updateShadowMap() has been removed.")}});Object.defineProperties(Wd.prototype,{shadowMapEnabled:{get:function(){return this.shadowMap.enabled},set:function(a){console.warn("THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.");this.shadowMap.enabled=a}},shadowMapType:{get:function(){return this.shadowMap.type},set:function(a){console.warn("THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.");
+this.shadowMap.type=a}},shadowMapCullFace:{get:function(){return this.shadowMap.cullFace},set:function(a){console.warn("THREE.WebGLRenderer: .shadowMapCullFace is now .shadowMap.cullFace.");this.shadowMap.cullFace=a}}});Object.defineProperties(Ie.prototype,{cullFace:{get:function(){return this.renderReverseSided?2:1},set:function(a){a=1!==a;console.warn("WebGLRenderer: .shadowMap.cullFace is deprecated. Set .shadowMap.renderReverseSided to "+a+".");this.renderReverseSided=a}}});Object.defineProperties(Hb.prototype,
+{wrapS:{get:function(){console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.");return this.texture.wrapS},set:function(a){console.warn("THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.");this.texture.wrapS=a}},wrapT:{get:function(){console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.");return this.texture.wrapT},set:function(a){console.warn("THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.");this.texture.wrapT=a}},magFilter:{get:function(){console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.");
+return this.texture.magFilter},set:function(a){console.warn("THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.");this.texture.magFilter=a}},minFilter:{get:function(){console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.");return this.texture.minFilter},set:function(a){console.warn("THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.");this.texture.minFilter=a}},anisotropy:{get:function(){console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.");
+return this.texture.anisotropy},set:function(a){console.warn("THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.");this.texture.anisotropy=a}},offset:{get:function(){console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset.");return this.texture.offset},set:function(a){console.warn("THREE.WebGLRenderTarget: .offset is now .texture.offset.");this.texture.offset=a}},repeat:{get:function(){console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat.");return this.texture.repeat},
+set:function(a){console.warn("THREE.WebGLRenderTarget: .repeat is now .texture.repeat.");this.texture.repeat=a}},format:{get:function(){console.warn("THREE.WebGLRenderTarget: .format is now .texture.format.");return this.texture.format},set:function(a){console.warn("THREE.WebGLRenderTarget: .format is now .texture.format.");this.texture.format=a}},type:{get:function(){console.warn("THREE.WebGLRenderTarget: .type is now .texture.type.");return this.texture.type},set:function(a){console.warn("THREE.WebGLRenderTarget: .type is now .texture.type.");
+this.texture.type=a}},generateMipmaps:{get:function(){console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.");return this.texture.generateMipmaps},set:function(a){console.warn("THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.");this.texture.generateMipmaps=a}}});lc.prototype.load=function(a){console.warn("THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.");var b=this;(new ee).load(a,function(a){b.setBuffer(a)});return this};
+ie.prototype.getData=function(){console.warn("THREE.AudioAnalyser: .getData() is now .getFrequencyData().");return this.getFrequencyData()};$c.prototype.updateCubeMap=function(a,b){console.warn("THREE.CubeCamera: .updateCubeMap() is now .update().");return this.update(a,b)};m.WebGLRenderTargetCube=Ib;m.WebGLRenderTarget=Hb;m.WebGLRenderer=Wd;m.ShaderLib=mb;m.UniformsLib=E;m.UniformsUtils=Ea;m.ShaderChunk=W;m.FogExp2=Ob;m.Fog=Pb;m.Scene=od;m.LensFlare=Xd;m.Sprite=Cc;m.LOD=Dc;m.SkinnedMesh=qd;m.Skeleton=
+Ec;m.Bone=pd;m.Mesh=pa;m.LineSegments=ca;m.LineLoop=rd;m.Line=ma;m.Points=Qb;m.Group=Fc;m.VideoTexture=sd;m.DataTexture=fb;m.CompressedTexture=Rb;m.CubeTexture=Ua;m.CanvasTexture=tc;m.DepthTexture=Gc;m.Texture=ea;m.CompressedTextureLoader=Qe;m.DataTextureLoader=Zd;m.CubeTextureLoader=$d;m.TextureLoader=td;m.ObjectLoader=Re;m.MaterialLoader=Id;m.BufferGeometryLoader=ae;m.DefaultLoadingManager=wa;m.LoadingManager=Yd;m.JSONLoader=be;m.ImageLoader=Xc;m.FontLoader=Te;m.FileLoader=Ja;m.Loader=kc;m.Cache=
+jd;m.AudioLoader=ee;m.SpotLightShadow=vd;m.SpotLight=wd;m.PointLight=xd;m.RectAreaLight=Bd;m.HemisphereLight=ud;m.DirectionalLightShadow=yd;m.DirectionalLight=zd;m.AmbientLight=Ad;m.LightShadow=vb;m.Light=ga;m.StereoCamera=Ue;m.PerspectiveCamera=U;m.OrthographicCamera=Kb;m.CubeCamera=$c;m.ArrayCamera=nd;m.Camera=La;m.AudioListener=fe;m.PositionalAudio=he;m.AudioContext=ge;m.AudioAnalyser=ie;m.Audio=lc;m.VectorKeyframeTrack=ic;m.StringKeyframeTrack=Fd;m.QuaternionKeyframeTrack=Zc;m.NumberKeyframeTrack=
+jc;m.ColorKeyframeTrack=Hd;m.BooleanKeyframeTrack=Gd;m.PropertyMixer=je;m.PropertyBinding=na;m.KeyframeTrack=xb;m.AnimationUtils=T;m.AnimationObjectGroup=We;m.AnimationMixer=Ye;m.AnimationClip=ka;m.Uniform=Jd;m.InstancedBufferGeometry=ke;m.BufferGeometry=D;m.Geometry=N;m.InterleavedBufferAttribute=le;m.InstancedInterleavedBuffer=me;m.InterleavedBuffer=mc;m.InstancedBufferAttribute=ne;m.Face3=Pa;m.Object3D=A;m.Raycaster=Ze;m.Layers=Pd;m.EventDispatcher=ja;m.Clock=af;m.QuaternionLinearInterpolant=Ed;
+m.LinearInterpolant=Yc;m.DiscreteInterpolant=Dd;m.CubicInterpolant=Cd;m.Interpolant=xa;m.Triangle=Qa;m.Math=R;m.Spherical=bf;m.Cylindrical=cf;m.Plane=Aa;m.Frustum=ld;m.Sphere=Da;m.Ray=lb;m.Matrix4=K;m.Matrix3=ra;m.Box3=Oa;m.Box2=kd;m.Line3=Mb;m.Euler=Ya;m.Vector4=da;m.Vector3=p;m.Vector2=C;m.Quaternion=Z;m.Color=H;m.ImmediateRenderObject=ad;m.VertexNormalsHelper=bd;m.SpotLightHelper=nc;m.SkeletonHelper=oc;m.PointLightHelper=pc;m.RectAreaLightHelper=qc;m.HemisphereLightHelper=rc;m.GridHelper=cd;m.PolarGridHelper=
+Kd;m.FaceNormalsHelper=dd;m.DirectionalLightHelper=sc;m.CameraHelper=ed;m.BoxHelper=Db;m.Box3Helper=fd;m.PlaneHelper=gd;m.ArrowHelper=Eb;m.AxesHelper=hd;m.CatmullRomCurve3=ya;m.CubicBezierCurve3=Fb;m.QuadraticBezierCurve3=Gb;m.LineCurve3=db;m.ArcCurve=id;m.EllipseCurve=Na;m.SplineCurve=ab;m.CubicBezierCurve=bb;m.QuadraticBezierCurve=cb;m.LineCurve=Ka;m.Shape=Cb;m.Path=Bb;m.ShapePath=ce;m.Font=de;m.CurvePath=Ab;m.Curve=S;m.ShapeUtils=Ha;m.SceneUtils={createMultiMaterialObject:function(a,b){for(var c=
+new Fc,d=0,e=b.length;d<e;d++)c.add(new pa(a,b[d]));return c},detach:function(a,b,c){a.applyMatrix(b.matrixWorld);b.remove(a);c.add(a)},attach:function(a,b,c){a.applyMatrix((new K).getInverse(c.matrixWorld));b.remove(a);c.add(a)}};m.WebGLUtils=Pe;m.WireframeGeometry=Sb;m.ParametricGeometry=Hc;m.ParametricBufferGeometry=Tb;m.TetrahedronGeometry=Jc;m.TetrahedronBufferGeometry=Ub;m.OctahedronGeometry=Kc;m.OctahedronBufferGeometry=nb;m.IcosahedronGeometry=Lc;m.IcosahedronBufferGeometry=Vb;m.DodecahedronGeometry=
+Mc;m.DodecahedronBufferGeometry=Wb;m.PolyhedronGeometry=Ic;m.PolyhedronBufferGeometry=qa;m.TubeGeometry=Nc;m.TubeBufferGeometry=Xb;m.TorusKnotGeometry=Oc;m.TorusKnotBufferGeometry=Yb;m.TorusGeometry=Pc;m.TorusBufferGeometry=Zb;m.TextGeometry=Qc;m.TextBufferGeometry=$b;m.SphereGeometry=Rc;m.SphereBufferGeometry=ob;m.RingGeometry=Sc;m.RingBufferGeometry=ac;m.PlaneGeometry=Ac;m.PlaneBufferGeometry=kb;m.LatheGeometry=Tc;m.LatheBufferGeometry=bc;m.ShapeGeometry=cc;m.ShapeBufferGeometry=dc;m.ExtrudeGeometry=
+$a;m.ExtrudeBufferGeometry=Ga;m.EdgesGeometry=ec;m.ConeGeometry=Uc;m.ConeBufferGeometry=Vc;m.CylinderGeometry=pb;m.CylinderBufferGeometry=Sa;m.CircleGeometry=Wc;m.CircleBufferGeometry=fc;m.BoxGeometry=Lb;m.BoxBufferGeometry=jb;m.ShadowMaterial=gc;m.SpriteMaterial=Za;m.RawShaderMaterial=hc;m.ShaderMaterial=oa;m.PointsMaterial=Ba;m.MeshPhysicalMaterial=qb;m.MeshStandardMaterial=Ma;m.MeshPhongMaterial=Ia;m.MeshToonMaterial=rb;m.MeshNormalMaterial=sb;m.MeshLambertMaterial=tb;m.MeshDepthMaterial=Wa;m.MeshDistanceMaterial=
+Xa;m.MeshBasicMaterial=va;m.LineDashedMaterial=ub;m.LineBasicMaterial=O;m.Material=Q;m.Float64BufferAttribute=zc;m.Float32BufferAttribute=y;m.Uint32BufferAttribute=ib;m.Int32BufferAttribute=yc;m.Uint16BufferAttribute=hb;m.Int16BufferAttribute=xc;m.Uint8ClampedBufferAttribute=wc;m.Uint8BufferAttribute=vc;m.Int8BufferAttribute=uc;m.BufferAttribute=P;m.REVISION="88";m.MOUSE={LEFT:0,MIDDLE:1,RIGHT:2};m.CullFaceNone=0;m.CullFaceBack=1;m.CullFaceFront=2;m.CullFaceFrontBack=3;m.FrontFaceDirectionCW=0;m.FrontFaceDirectionCCW=
+1;m.BasicShadowMap=0;m.PCFShadowMap=1;m.PCFSoftShadowMap=2;m.FrontSide=0;m.BackSide=1;m.DoubleSide=2;m.FlatShading=1;m.SmoothShading=2;m.NoColors=0;m.FaceColors=1;m.VertexColors=2;m.NoBlending=0;m.NormalBlending=1;m.AdditiveBlending=2;m.SubtractiveBlending=3;m.MultiplyBlending=4;m.CustomBlending=5;m.AddEquation=100;m.SubtractEquation=101;m.ReverseSubtractEquation=102;m.MinEquation=103;m.MaxEquation=104;m.ZeroFactor=200;m.OneFactor=201;m.SrcColorFactor=202;m.OneMinusSrcColorFactor=203;m.SrcAlphaFactor=
+204;m.OneMinusSrcAlphaFactor=205;m.DstAlphaFactor=206;m.OneMinusDstAlphaFactor=207;m.DstColorFactor=208;m.OneMinusDstColorFactor=209;m.SrcAlphaSaturateFactor=210;m.NeverDepth=0;m.AlwaysDepth=1;m.LessDepth=2;m.LessEqualDepth=3;m.EqualDepth=4;m.GreaterEqualDepth=5;m.GreaterDepth=6;m.NotEqualDepth=7;m.MultiplyOperation=0;m.MixOperation=1;m.AddOperation=2;m.NoToneMapping=0;m.LinearToneMapping=1;m.ReinhardToneMapping=2;m.Uncharted2ToneMapping=3;m.CineonToneMapping=4;m.UVMapping=300;m.CubeReflectionMapping=
+301;m.CubeRefractionMapping=302;m.EquirectangularReflectionMapping=303;m.EquirectangularRefractionMapping=304;m.SphericalReflectionMapping=305;m.CubeUVReflectionMapping=306;m.CubeUVRefractionMapping=307;m.RepeatWrapping=1E3;m.ClampToEdgeWrapping=1001;m.MirroredRepeatWrapping=1002;m.NearestFilter=1003;m.NearestMipMapNearestFilter=1004;m.NearestMipMapLinearFilter=1005;m.LinearFilter=1006;m.LinearMipMapNearestFilter=1007;m.LinearMipMapLinearFilter=1008;m.UnsignedByteType=1009;m.ByteType=1010;m.ShortType=
+1011;m.UnsignedShortType=1012;m.IntType=1013;m.UnsignedIntType=1014;m.FloatType=1015;m.HalfFloatType=1016;m.UnsignedShort4444Type=1017;m.UnsignedShort5551Type=1018;m.UnsignedShort565Type=1019;m.UnsignedInt248Type=1020;m.AlphaFormat=1021;m.RGBFormat=1022;m.RGBAFormat=1023;m.LuminanceFormat=1024;m.LuminanceAlphaFormat=1025;m.RGBEFormat=1023;m.DepthFormat=1026;m.DepthStencilFormat=1027;m.RGB_S3TC_DXT1_Format=2001;m.RGBA_S3TC_DXT1_Format=2002;m.RGBA_S3TC_DXT3_Format=2003;m.RGBA_S3TC_DXT5_Format=2004;
+m.RGB_PVRTC_4BPPV1_Format=2100;m.RGB_PVRTC_2BPPV1_Format=2101;m.RGBA_PVRTC_4BPPV1_Format=2102;m.RGBA_PVRTC_2BPPV1_Format=2103;m.RGB_ETC1_Format=2151;m.LoopOnce=2200;m.LoopRepeat=2201;m.LoopPingPong=2202;m.InterpolateDiscrete=2300;m.InterpolateLinear=2301;m.InterpolateSmooth=2302;m.ZeroCurvatureEnding=2400;m.ZeroSlopeEnding=2401;m.WrapAroundEnding=2402;m.TrianglesDrawMode=0;m.TriangleStripDrawMode=1;m.TriangleFanDrawMode=2;m.LinearEncoding=3E3;m.sRGBEncoding=3001;m.GammaEncoding=3007;m.RGBEEncoding=
+3002;m.LogLuvEncoding=3003;m.RGBM7Encoding=3004;m.RGBM16Encoding=3005;m.RGBDEncoding=3006;m.BasicDepthPacking=3200;m.RGBADepthPacking=3201;m.CubeGeometry=Lb;m.Face4=function(a,b,c,d,e,f,g){console.warn("THREE.Face4 has been removed. A THREE.Face3 will be created instead.");return new Pa(a,b,c,e,f,g)};m.LineStrip=0;m.LinePieces=1;m.MeshFaceMaterial=function(a){console.warn("THREE.MeshFaceMaterial has been removed. Use an Array instead.");return a};m.MultiMaterial=function(a){void 0===a&&(a=[]);console.warn("THREE.MultiMaterial has been removed. Use an Array instead.");
+a.isMultiMaterial=!0;a.materials=a;a.clone=function(){return a.slice()};return a};m.PointCloud=function(a,b){console.warn("THREE.PointCloud has been renamed to THREE.Points.");return new Qb(a,b)};m.Particle=function(a){console.warn("THREE.Particle has been renamed to THREE.Sprite.");return new Cc(a)};m.ParticleSystem=function(a,b){console.warn("THREE.ParticleSystem has been renamed to THREE.Points.");return new Qb(a,b)};m.PointCloudMaterial=function(a){console.warn("THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.");
+return new Ba(a)};m.ParticleBasicMaterial=function(a){console.warn("THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.");return new Ba(a)};m.ParticleSystemMaterial=function(a){console.warn("THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.");return new Ba(a)};m.Vertex=function(a,b,c){console.warn("THREE.Vertex has been removed. Use THREE.Vector3 instead.");return new p(a,b,c)};m.DynamicBufferAttribute=function(a,b){console.warn("THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.");
+return(new P(a,b)).setDynamic(!0)};m.Int8Attribute=function(a,b){console.warn("THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.");return new uc(a,b)};m.Uint8Attribute=function(a,b){console.warn("THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.");return new vc(a,b)};m.Uint8ClampedAttribute=function(a,b){console.warn("THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.");return new wc(a,
+b)};m.Int16Attribute=function(a,b){console.warn("THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.");return new xc(a,b)};m.Uint16Attribute=function(a,b){console.warn("THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.");return new hb(a,b)};m.Int32Attribute=function(a,b){console.warn("THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.");return new yc(a,b)};m.Uint32Attribute=function(a,b){console.warn("THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.");
+return new ib(a,b)};m.Float32Attribute=function(a,b){console.warn("THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.");return new y(a,b)};m.Float64Attribute=function(a,b){console.warn("THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.");return new zc(a,b)};m.ClosedSplineCurve3=ef;m.SplineCurve3=ff;m.Spline=re;m.AxisHelper=function(a){console.warn("THREE.AxisHelper has been renamed to THREE.AxesHelper.");return new hd(a)};
+m.BoundingBoxHelper=function(a,b){console.warn("THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.");return new Db(a,b)};m.EdgesHelper=function(a,b){console.warn("THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.");return new ca(new ec(a.geometry),new O({color:void 0!==b?b:16777215}))};m.WireframeHelper=function(a,b){console.warn("THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.");return new ca(new Sb(a.geometry),new O({color:void 0!==
+b?b:16777215}))};m.XHRLoader=function(a){console.warn("THREE.XHRLoader has been renamed to THREE.FileLoader.");return new Ja(a)};m.BinaryTextureLoader=function(a){console.warn("THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.");return new Zd(a)};m.GeometryUtils={merge:function(a,b,c){console.warn("THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.");if(b.isMesh){b.matrixAutoUpdate&&b.updateMatrix();
+var d=b.matrix;b=b.geometry}a.merge(b,d,c)},center:function(a){console.warn("THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.");return a.center()}};m.ImageUtils={crossOrigin:void 0,loadTexture:function(a,b,c,d){console.warn("THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.");var e=new td;e.setCrossOrigin(this.crossOrigin);a=e.load(a,c,void 0,d);b&&(a.mapping=b);return a},loadTextureCube:function(a,b,c,d){console.warn("THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.");
+var e=new $d;e.setCrossOrigin(this.crossOrigin);a=e.load(a,c,void 0,d);b&&(a.mapping=b);return a},loadCompressedTexture:function(){console.error("THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.")},loadCompressedTextureCube:function(){console.error("THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.")}};m.Projector=function(){console.error("THREE.Projector has been moved to /examples/js/renderers/Projector.js.");this.projectVector=
+function(a,b){console.warn("THREE.Projector: .projectVector() is now vector.project().");a.project(b)};this.unprojectVector=function(a,b){console.warn("THREE.Projector: .unprojectVector() is now vector.unproject().");a.unproject(b)};this.pickingRay=function(){console.error("THREE.Projector: .pickingRay() is now raycaster.setFromCamera().")}};m.CanvasRenderer=function(){console.error("THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js");this.domElement=document.createElementNS("http://www.w3.org/1999/xhtml",
+"canvas");this.clear=function(){};this.render=function(){};this.setClearColor=function(){};this.setSize=function(){}};Object.defineProperty(m,"__esModule",{value:!0})});
diff --git a/clever/www/js/viz.js b/clever/www/js/viz.js
new file mode 100644
index 00000000..8178a9d9
--- /dev/null
+++ b/clever/www/js/viz.js
@@ -0,0 +1,59 @@
+var ros = new ROSLIB.Ros({
+	url : 'ws://' + location.host + ':9090'
+});
+
+var titleEl = document.querySelector('title');
+
+ros.on('error', function(error) {
+	titleEl.innerText = 'Disconnected';
+	err = error;
+	alert('Connection error: please enable \'rosbridge\' in clever.launch!');
+});
+
+ros.on('connection', function() {
+	console.log('connected');
+	titleEl.innerText = 'Connected';
+});
+
+ros.on('close', function() {
+	console.log('disconnected');
+	titleEl.innerText = 'Disconnected';
+});
+
+var viewer = new ROS3D.Viewer({
+	divID: 'viz',
+	width: 1000,
+	height: 600,
+	antialias: true
+});
+
+var tfClient = new ROSLIB.TFClient({
+	ros: ros,
+	angularThres: 0.01,
+	transThres: 0.01,
+	rate: 10.0,
+	fixedFrame : 'map'
+});
+
+var vehicleMarkers = new ROS3D.MarkerArrayClient({
+	ros: ros,
+	tfClient: tfClient,
+	topic: '/vehicle_marker',
+	rootObject: viewer.scene
+});
+
+var cameraMarkers = new ROS3D.MarkerArrayClient({
+	ros: ros,
+	tfClient: tfClient,
+	topic: '/main_camera/camera_markers',
+	rootObject: viewer.scene
+});
+
+var map = new ROS3D.Grid({
+	ros: ros,
+	tfClient: tfClient,
+	// frameID: 'map',
+	rootObject: viewer.scene
+});
+
+viewer.scene.add(map);
diff --git a/clever/www/viz.html b/clever/www/viz.html
new file mode 100644
index 00000000..ded972cd
--- /dev/null
+++ b/clever/www/viz.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+	<head>
+		<script type="text/javascript" src="js/three.min.js"></script>
+		<script type="text/javascript" src="js/eventemitter2.js"></script>
+		<script type="text/javascript" src="js/roslib.js"></script>
+		<script type="text/javascript" src="js/ros3d.js"></script>
+		<title>3D visualization</title>
+	</head>
+	<body>
+		<div id="viz"></div>
+		<script type="text/javascript" src="js/viz.js"></script>
+	</body>
+</html>