text: /**
   * @author mr.doob / http://mrdoob.com/
   */
  
  var Cube = function (width, height, depth) {
  
  	THREE.Geometry.call(this);
  
  	var scope = this,
  	width_half = width / 2,
  	height_half = height / 2,
  	depth_half = depth / 2;
  
  	v(  width_half,  height_half, -depth_half );
  	v(  width_half, -height_half, -depth_half );
  	v( -width_half, -height_half, -depth_half );
  	v( -width_half,  height_half, -depth_half );
  	v(  width_half,  height_half,  depth_half );
  	v(  width_half, -height_half,  depth_half );
  	v( -width_half, -height_half,  depth_half );
  	v( -width_half,  height_half,  depth_half );
  
  	f4( 0, 1, 2, 3 );
  	f4( 4, 7, 6, 5 );
  	f4( 0, 4, 5, 1 );
  	f4( 1, 5, 6, 2 );
  	f4( 2, 6, 7, 3 );
  	f4( 4, 0, 3, 7 );
  
  	function v(x, y, z) {
  
  		scope.vertices.push( new THREE.Vertex( new THREE.Vector3( x, y, z ) ) );
  	}
  
  	function f4(a, b, c, d) {
  
  		scope.faces.push( new THREE.Face4( a, b, c, d ) );
  	}
  
  	this.computeNormals();
  
  }
  
  Cube.prototype = new THREE.Geometry();
  Cube.prototype.constructor = Cube;
  