package com.java3d.examples;

import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;


public class myBall {

public myBall() {

// 創建宇宙

SimpleUniverse universe = new SimpleUniverse();


// 創建容納物體的結構

BranchGroup group = new BranchGroup();


// 創建一個球體并加入到物體組

Sphere sphere = new Sphere(0.5f,1,100);

group.addChild(sphere);


// 創建一個從原點延伸100米的紅色光源

Color3f light1Color = new Color3f(1.8f, 0.1f, 0.1f);

BoundingSphere bounds = 

new BoundingSphere(new Point3d(0.0,0.0,0.0), 100);


BoundingSphere bounds2 = 

	new BoundingSphere(new Point3d(0.0,0.0,0.0), 1000);

Vector3f light1Direction = new Vector3f(5.0f, 5.0f, -12.0f);

//定義一組平行光，顏色和方向
DirectionalLight light1 = new DirectionalLight(light1Color, light1Direction);

light1.setInfluencingBounds(bounds);


//加入一環境光
AmbientLight ambientLight = new AmbientLight(new Color3f(1.0f, 1.0f, 1.0f));
ambientLight.setInfluencingBounds(bounds2);


//group.addChild(ambientLight);

group.addChild(light1);


// 注視球體

universe.getViewingPlatform().setNominalViewingTransform();


// 添加物體組到宇宙中

universe.addBranchGraph(group);

}

public static void main(String[] args) { new myBall(); }

}