directionallighttest.java

里面 有一些java3d编程的例子

import java.applet.Applet;
import java.awt.BorderLayout;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.behaviors.mouse.*;
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
public class DirectionalLightTest extends Applet
{
	public BranchGroup createBranchGroup()
	{
		BranchGroup branch=new BranchGroup();
		BoundingSphere bounds=new BoundingSphere();
		DirectionalLight light=new DirectionalLight();
		light.setInfluencingBounds(bounds);
		branch.addChild(light);
		TransformGroup trans=new TransformGroup();
		trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		MouseRotate rotate=new MouseRotate(trans);
		rotate.setSchedulingBounds(bounds);
		branch.addChild(rotate);
		Sphere sphere=new Sphere(0.5f);
		trans.addChild(sphere);
		branch.addChild(trans);
		branch.compile();
		return branch;
	}	
	public DirectionalLightTest()
	{
		this.setLayout(new BorderLayout());
		Canvas3D c=new Canvas3D(SimpleUniverse.getPreferredConfiguration());
		this.add(c,"Center");
		SimpleUniverse u=new SimpleUniverse(c);
		u.getViewingPlatform().setNominalViewingTransform();
		u.addBranchGraph(this.createBranchGroup());
	}
	public static void main(String[] args)
	{
		new MainFrame(new DirectionalLightTest(),300,300);
	}
}