public class PV3CUBE extends Sprite
        {
          private var viewport: Viewport3D;
          private var scene:            Scene3D;
          private var camera:           Camera3D;
          private var material: ColorMaterial;
          private var primitive:        Cube;
          private var renderer: BasicRenderEngine;

    public function PV3CUBE():void
    {
       
         //viewport = new BasicRenderEngine(width, height, scaleToStage, interactive);
         viewport = new Viewport3D(550, 400, false, true);
         addChild(viewport);

         //instantiates a Scene3D instance
         scene = new Scene3D();

         //instantiates a Camera3D instance
                         camera = new Camera3D();

         //renderer draws the scene to the stage
         renderer = new BasicRenderEngine();

         //ColorMaterial, doubleSided draws the color on both sides of the geometry normals
         material = new ColorMaterial(0xFF9900);
                 material.doubleSided = true;
                 
                 var materialsList:MaterialsList = new MaterialsList();
                 materialsList.addMaterial(material,"front");
                 materialsList.addMaterial(material,"back");
                 materialsList.addMaterial(material,"left");
                 materialsList.addMaterial(material,"right");
                 materialsList.addMaterial(material,"top");
                 materialsList.addMaterial(material,"bottom");
                 
                 primitive = new Cube(materialsList,500,500,500,3,3,3);
                 scene.addChild(primitive);

         //primitive = new Plane(material applied to object, width, height, wSegments, hSegments);
     
                       
         //set up enterFrame event
         addEventListener(Event.ENTER_FRAME, onEnterFrame);

         //define enterFrame Method, render the PV3D Scene and animate the primitive
          function onEnterFrame(e:Event):void
          {
                 primitive.rotationY += 2;
                 renderer.renderScene(scene, camera, viewport);
          }
                }
        }
}