ball.java

有关于java 3D的一些编程

import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
public class Ball {
	public Ball(){
		   SimpleUniverse universe=new SimpleUniverse(); //创建宇宙
	       BranchGroup group=new BranchGroup(); //创建容纳物体的结构
	        Sphere sphere=new Sphere(0.5f); //创建一个球体并加入到物体组
	        group.addChild(sphere);
	        Color3f light1Color=new Color3f(1.8f,0.1f,0.1f); //创建一个从在点延伸100米的红色光源
	        BoundingSphere bounds=new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);
	        Vector3f light1Direction=new Vector3f(4.0f,-7.0f,-12.0f);
	        DirectionalLight light1=new DirectionalLight(light1Color,light1Direction);
	        light1.setInfluencingBounds(bounds);
	        group.addChild(light1);
	        universe.getViewingPlatform().setNominalViewingTransform();   // 注视球体
	         universe.addBranchGraph(group);
	     }
	    public static void main(String[] args){new Ball();}
	}