package { import away3d.entities.Mesh; import away3d.materials.ColorMaterial; import away3d.primitives.CubeGeometry; import away3d.stereo.StereoCamera3D; import away3d.stereo.StereoView3D; import away3d.stereo.methods.AnaglyphStereoRenderMethod; import flash.display.Sprite; import flash.events.Event;  [SWF(width="960", height="540")] public class Basic_Stereo extends Sprite {  private var _view : StereoView3D;  private var _camera : StereoCamera3D;    private var _cube : Mesh;    public function Basic_Stereo()  {   super();      //定义立体相机   _camera = new StereoCamera3D();   _camera.stereoOffset = 50;      //定义立体视图   _view = new StereoView3D();   _view.antiAlias = 4;   _view.camera = _camera;   _view.stereoEnabled = true;   //定义当前的立体渲染方法   _view.stereoRenderMethod = new AnaglyphStereoRenderMethod();   //_view.stereoRenderMethod = new InterleavedStereoRenderMethod();   addChild(_view);   //定义当前的正方形   _cube = new Mesh(new CubeGeometry(), new ColorMaterial(0xffcc00));   _cube.scale(5);   _view.scene.addChild(_cube);      addEventListener(Event.ENTER_FRAME, onEnterFrame);  }    //不停的渲染当前  private function onEnterFrame(ev : Event) : void  {   _cube.rotationY += 2;   _view.render();  } }}