pv3d测试

来自前面介绍的日本网址： http://wonderfl.net/search?q=pv3d  

下面是其中之一：  源码：  http://wonderfl.net/code/d9bc3d0d3b237cd9feca41335fe49c4624064034/download

                         demo :  http://wonderfl.net/code/d9bc3d0d3b237cd9feca41335fe49c4624064034/fullscreen

codes :

1. package
2. {
3.     import flash.display.BitmapData;
4.     import flash.events.Event;
5.     
6.     import org.papervision3d.core.geom.TriangleMesh3D;
7.     import org.papervision3d.core.math.Number3D;
8.     import org.papervision3d.core.math.Plane3D;
9.     import org.papervision3d.core.utils.MeshUtil;
10.     import org.papervision3d.materials.BitmapColorMaterial;
11.     import org.papervision3d.materials.BitmapMaterial;
12.     import org.papervision3d.objects.primitives.Plane;
13.     import org.papervision3d.objects.primitives.Sphere;
14.     import org.papervision3d.view.BasicView;
15.     public class MeshCuttingExample extends BasicView
16.     {
17.         protected var planeMaterial:BitmapColorMaterial;
18.         protected var sphereMaterial:BitmapMaterial;
19.         
20.         protected var sourceSphere:Sphere;
21.         protected var hemiSphereA:TriangleMesh3D;
22.         protected var hemiSphereB:TriangleMesh3D;
23.     
24.         
25.         public function MeshCuttingExample()
26.         {
27.             super(0, 0, true, false);
28.             opaqueBackground = 0;
29.             setupScene();
30.         }
31.         
32.         protected function setupScene():void
33.         {
34.             //Setup a bitmapdata material for the spheres to use.
35.             var bmp:BitmapData = new BitmapData(512,255,false,0);
36.             bmp.perlinNoise(64,64,4,123456,true,false);
37.             
38.             //Create a new sphere, which we will use as a source geometry, cutting it.
39.             sphereMaterial = new BitmapMaterial(bmp);
40.             sphereMaterial.doubleSided = true;
41.             sourceSphere = new Sphere(sphereMaterial, 400, 15,15);
42.             
43.             //Setup a plane3d along which we will cut the sphere.
44.             var normal:Number3D = new Number3D(.5,.5,0); //Some angle
45.             var point:Number3D = new Number3D(0,80,0); //at position...
46.             var cutPlane:Plane3D = Plane3D.fromNormalAndPoint(normal, point);
47.             
48.             //Cut the sphere along the plane3D, returns an array of maximum 2 meshes.
49.             var meshes:Array = MeshUtil.cutTriangleMesh(sourceSphere, cutPlane);
50.             
51.             //Add result meshA
52.             hemiSphereA = meshes[0];
53.             hemiSphereA.x = 400;
54.             scene.addChild(hemiSphereA);
55.             
56.             //Add result meshB
57.             hemiSphereB = meshes[1];
58.             hemiSphereB.x = -400;
59.             scene.addChild(hemiSphereB);
60.             
61.             //Start rendering
62.             startRendering();
63.         }
64.         
65.         override protected function onRenderTick(event:Event=null):void
66.         {
67.             //Rotate the spheres.
68.             hemiSphereA.yaw(1);
69.             hemiSphereB.yaw(-1);
70.             super.onRenderTick(event);
71.         }
72.         
73.     }
74. }