package?com.javapp.ch14;

import?com.sun.j3d.utils.behaviors.vp.OrbitBehavior;
import?com.sun.j3d.utils.geometry.*;
import?com.sun.j3d.utils.universe.*;

import?javax.media.j3d.*;
import?javax.vecmath.*;

public?class?Ball?{
	public?Ball（）?{
		//?創建虛擬場景
		SimpleUniverse?universe?=?new?SimpleUniverse（）;
		//???	創建包含對象的場景圖
		BranchGroup?group?=?new?BranchGroup（）;
		//?創建一個球體并添加到??分支結點中
		Sphere?sphere?=?new?Sphere（0.5f）;
		group.addChild（sphere）;
		//?創建一盞紅燈從100類的方向照射?
		Color3f?light1Color?=?new?Color3f（.4f?5.2f?0.2f）;
		BoundingSphere?bounds?=?new?BoundingSphere（new?Point3d（0.0?0.0?0.0）
				100.0）;
		Vector3f?light1Direction?=?new