Papervision3D: understanding Plane object

核心提示： Let’s look at the movie:If you notice, when the plane rotates over 180 degrees, it disappears. By default, planes aren’t double sided.To

Let’s look at the movie:

If you notice, when the plane rotates over 180 degrees, it disappears. By default, planes aren’t double sided.

To create a double sided plane, we’ll need to define a material and set this material as double sided.

package　{
　import　flash.display.Sprite;
　import　flash.events.Event;
　import　org.papervision3d.cameras.Camera3D;
　import　org.papervision3d.render.BasicRenderEngine;
　import　org.papervision3d.scenes.Scene3D;
　import　org.papervision3d.view.Viewport3D;
　import　org.papervision3d.objects.primitives.Plane;
　import　org.papervision3d.materials.WireframeMaterial;
　public　class　papervision　extends　Sprite　{
　　public　var　viewport:Viewport3D　=　new　Viewport3D();
　　public　var　scene:Scene3D　=　new　Scene3D();
　　public　var　camera:Camera3D　=　new　Camera3D();
　　public　var　renderer:BasicRenderEngine　=　new　BasicRenderEngine();
　　public　var　wireframe:WireframeMaterial　=　new　WireframeMaterial();
　　public　var　plane:Plane=　new　Plane(wireframe);
　　public　function　papervision()　{
　　　addChild(viewport);
　　　wireframe.doubleSided　=　true;
　　　scene.addChild(plane);
　　　addEventListener(Event.ENTER_FRAME,　render);
　　}
　　public　function　render(e:Event)　{
　　　plane.pitch(1);
　　　renderer.renderScene(scene,　camera,　viewport);
　　}
　}
}