text: /**
   * Loader for CTM encoded models generated by OpenCTM tools:
   *	http://openctm.sourceforge.net/
   *
   * Uses js-openctm library by Juan Mellado
   *	http://code.google.com/p/js-openctm/
   *
   * @author alteredq / http://alteredqualia.com/
   */
  
  THREE.CTMLoader = function ( showStatus ) {
  
  	THREE.Loader.call( this, showStatus );
  
  };
  
  THREE.CTMLoader.prototype = Object.create( THREE.Loader.prototype );
  THREE.CTMLoader.prototype.constructor = THREE.CTMLoader;
  
  // Load multiple CTM parts defined in JSON
  
  THREE.CTMLoader.prototype.loadParts = function( url, callback, parameters ) {
  
  	parameters = parameters || {};
  
  	var scope = this;
  
  	var xhr = new XMLHttpRequest();
  
  	var basePath = parameters.basePath ? parameters.basePath : this.extractUrlBase( url );
  
  	xhr.onreadystatechange = function() {
  
  		if ( xhr.readyState === 4 ) {
  
  			if ( xhr.status === 200 || xhr.status === 0 ) {
  
  				var jsonObject = JSON.parse( xhr.responseText );
  
  				var materials = [], geometries = [], counter = 0;
  
  				function callbackFinal( geometry ) {
  
  					counter += 1;
  
  					geometries.push( geometry );
  
  					if ( counter === jsonObject.offsets.length ) {
  
  						callback( geometries, materials );
  
  					}
  
  				}
  
  
  				// init materials
  
  				for ( var i = 0; i < jsonObject.materials.length; i ++ ) {
  
  					materials[ i ] = scope.createMaterial( jsonObject.materials[ i ], basePath );
  
  				}
  
  				// load joined CTM file
  
  				var partUrl = basePath + jsonObject.data;
  				var parametersPart = { useWorker: parameters.useWorker, offsets: jsonObject.offsets };
  				scope.load( partUrl, callbackFinal, parametersPart );
  
  			}
  
  		}
  
  	}
  
  	xhr.open( "GET", url, true );
  	xhr.setRequestHeader( "Content-Type", "text/plain" );
  	xhr.send( null );
  
  };
  
  // Load CTMLoader compressed models
  //	- parameters
  //		- url (required)
  //		- callback (required)
  
  THREE.CTMLoader.prototype.load = function( url, callback, parameters ) {
  
  	parameters = parameters || {};
  
  	var scope = this;
  
  	var offsets = parameters.offsets !== undefined ? parameters.offsets : [ 0 ];
  
  	var xhr = new XMLHttpRequest(),
  		callbackProgress = null;
  
  	var length = 0;
  
  	xhr.onreadystatechange = function() {
  
  		if ( xhr.readyState === 4 ) {
  
  			if ( xhr.status === 200 || xhr.status === 0 ) {
  
  				var binaryData = new Uint8Array(xhr.response);
  
  				var s = Date.now();
  
  				if ( parameters.useWorker ) {
  
  					var worker = parameters.worker || new Worker( "js/loaders/ctm/CTMWorker.js" );
  
  					worker.onmessage = function( event ) {
  
  						var files = event.data;
  
  						for ( var i = 0; i < files.length; i ++ ) {
  
  							var ctmFile = files[ i ];
  
  							var e1 = Date.now();
  							// console.log( "CTM data parse time [worker]: " + (e1-s) + " ms" );
  
  							scope.createModel( ctmFile, callback );
  
  							var e = Date.now();
  							console.log( "model load time [worker]: " + (e - e1) + " ms, total: " + (e - s));
  
  						}
  
  
  					};
  
  					worker.postMessage( { "data": binaryData, "offsets": offsets } );
  
  				} else {
  
  					for ( var i = 0; i < offsets.length; i ++ ) {
  
  						var stream = new CTM.Stream( binaryData );
  						stream.offset = offsets[ i ];
  
  						var ctmFile = new CTM.File( stream );
  
  						scope.createModel( ctmFile, callback );
  
  					}
  
  					//var e = Date.now();
  					//console.log( "CTM data parse time [inline]: " + (e-s) + " ms" );
  
  				}
  
  			} else {
  
  				console.error( "Couldn't load [" + url + "] [" + xhr.status + "]" );
  
  			}
  
  		} else if ( xhr.readyState === 3 ) {
  
  			if ( callbackProgress ) {
  
  				if ( length === 0 ) {
  
  					length = xhr.getResponseHeader( "Content-Length" );
  
  				}
  
  				callbackProgress( { total: length, loaded: xhr.responseText.length } );
  
  			}
  
  		} else if ( xhr.readyState === 2 ) {
  
  			length = xhr.getResponseHeader( "Content-Length" );
  
  		}
  
  	}
  
  	xhr.open( "GET", url, true );
  	xhr.responseType = "arraybuffer";
  
  	xhr.send( null );
  
  };
  
  
  THREE.CTMLoader.prototype.createModel = function ( file, callback ) {
  
  	var Model = function () {
  
  		THREE.BufferGeometry.call( this );
  
  		this.materials = [];
  
  		var indices = file.body.indices,
  		positions = file.body.vertices,
  		normals = file.body.normals;
  
  		var uvs, colors;
  
  		var uvMaps = file.body.uvMaps;
  
  		if ( uvMaps !== undefined && uvMaps.length > 0 ) {
  
  			uvs = uvMaps[ 0 ].uv;
  
  		}
  
  		var attrMaps = file.body.attrMaps;
  
  		if ( attrMaps !== undefined && attrMaps.length > 0 && attrMaps[ 0 ].name === 'Color' ) {
  
  			colors = attrMaps[ 0 ].attr;
  
  		}
  
  		this.addAttribute( 'index', new THREE.BufferAttribute( indices, 1 ) );
  		this.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );
  
  		if ( normals !== undefined ) {
  
  			this.addAttribute( 'normal', new THREE.BufferAttribute( normals, 3 ) );
  
  		}
  
  		if ( uvs !== undefined ) {
  
  			this.addAttribute( 'uv', new THREE.BufferAttribute( uvs, 2 ) );
  
  		}
  
  		if ( colors !== undefined ) {
  
  			this.addAttribute( 'color', new THREE.BufferAttribute( colors, 4 ) );
  
  		}
  
  	}
  
  	Model.prototype = Object.create( THREE.BufferGeometry.prototype );
  	Model.prototype.constructor = Model;
  
  	var geometry = new Model();
  
  	geometry.computeOffsets();
  
  	// compute vertex normals if not present in the CTM model
  	if ( geometry.attributes.normal === undefined ) {
  		geometry.computeVertexNormals();
  	}
  
  	callback( geometry );
  
  };
  