Crear modelos 3D Collada para Papervision en Google Sketchup

package {

	import flash.display.Sprite;

	import flash.events.Event;

	import org.papervision3d.cameras.Camera3D;

	import org.papervision3d.objects.DisplayObject3D;

	import org.papervision3d.objects.parsers.DAE;

	import org.papervision3d.render.BasicRenderEngine;

	import org.papervision3d.scenes.Scene3D;

	import org.papervision3d.view.Viewport3D;

	public class CargarCollada extends Sprite{

		public var viewport:Viewport3D;

		public var renderer:BasicRenderEngine;

		public var scene:Scene3D;

		public var camera:Camera3D;

		public var dae:DAE;

		public var contenedor:DisplayObject3D = new DisplayObject3D();

		public function CargarCollada():void{

			iniciar3D();

			cargarDAE();

		}

		private function iniciar3D():void{

			viewport = new Viewport3D(500, 500, true,false);

			addChild(viewport);

			renderer = new BasicRenderEngine();

			scene = new Scene3D();

			camera = new Camera3D();

			camera.z = -300;	

		}

		private function cargarDAE():void{

			dae = new DAE();

			dae.load("http://www.esedeerre.com/ejemplos/greatwhite/collada/modelo/ejemploCollada.dae?rand=" + Math.random() * 10);

			contenedor.addChild(dae);

			scene.addChild(contenedor);

			addEventListener(Event.ENTER_FRAME, renderizar);

		}

		private function renderizar(e:Event):void{

			renderer.renderScene(scene,camera,viewport);

			contenedor.yaw(1.5)

			contenedor.pitch(1.8);

		}	

	}

}