翼灵---致力于flash互动应用

最后一篇PV3D之光影篇，现学现卖。

1. package
2. {
3.     import org.papervision3d.core.proto.MaterialObject3D;
4.     import org.papervision3d.lights.PointLight3D;
5.     import org.papervision3d.materials.shadematerials.*;
6.     import org.papervision3d.materials.*;
7.     import org.papervision3d.materials.shaders.*;
8.     import org.papervision3d.objects.DisplayObject3D;
9.     import org.papervision3d.objects.primitives.Sphere;
10.     public class ExampleforPointLight3D extends PaperBase
11.     {
12.         private var sphere1:Sphere;
13.         private var sphere2:Sphere;
14.         private var sphere3:Sphere;
15.         private var sphere4:Sphere;
16.         private var sphereGroup:DisplayObject3D;//用一个do3d盛放这四个Sphere
17.         private static const ORBITAL_RADIUS=200;
18.         public function ExampleforPointLight3D():void
19.         {
20.             init(600,450);
21.         }
22.         override protected function init3d():void
23.         {
24.             var light:PointLight3D=new PointLight3D(true);//括号内为true表示光源可见
25.             light.x=0;
26.             light.y=300;
27.             light.z=-400;//光源的3D坐标
28.             //下面分别用到了3种阴影材质，不同的材质表现出来的效果都不一样
29.             //产生光影的方法只需要将带有光源的阴影材质放入Sphere
30.             var gouraudMaterial:MaterialObject3D = new GouraudMaterial(light, 0x6654FF, 0x060433);
31.             sphere1 = new Sphere(gouraudMaterial, 50, 10, 10);
32.             sphere1.x = ORBITAL_RADIUS;
    •             var phongMaterial:MaterialObject3D = new PhongMaterial(light, 0x6654FF, 0x060433, 150);
    •             sphere2 = new Sphere(phongMaterial, 50, 10, 10);
    •             sphere2.z = -ORBITAL_RADIUS;
    •             var cellMaterial:MaterialObject3D = new CellMaterial(light, 0x6654FF, 0x060433, 5);
    •             sphere3 = new Sphere(cellMaterial, 50, 10, 10);
    •             sphere3.z = ORBITAL_RADIUS;
33.             //如果要贴上指定位图并也要产生光影
34.             //我们就需要制作一个Shader 和一个BitmapMaterial 用ShadedMaterial来将他们混合到一起
35.             var bitmapMaterial:BitmapMaterial=new BitmapAssetMaterial("BitmapImage");
36.             var shader:Shader = new PhongShader(light, 0xFFFFFF, 0x333333, 50);
37.             var shadedMaterial:ShadedMaterial = new ShadedMaterial(bitmapMaterial, shader);
38.             sphere4 = new Sphere(shadedMaterial, 150, 20, 20);
39.             sphere4.x = -ORBITAL_RADIUS;
40.             
41.             sphereGroup = new DisplayObject3D();
42.             sphereGroup.addChild(sphere1);
43.             sphereGroup.addChild(sphere2);
44.             sphereGroup.addChild(sphere3);
45.             sphereGroup.addChild(sphere4);
46.  
47.             default_scene.addChild(sphereGroup);
48.             default_scene.addChild(light);
49.  
50.         }
51.         override protected function processFrame():void
52.         {
53.             sphere1.yaw(-8);
54.             sphere2.yaw(-8);
55.             sphere3.yaw(-8);
56.             sphere4.yaw(-8);
57.             sphereGroup.yaw(3);
58.         }
59.     }
60. }

有关PV3D方面的学习笔记 至此就告一段落了。
更多更好的PV3D的中文学习教程请参考http://www.scile.cn/  里面写的很好很全面。