// Java 3D Test Applet
// LightingApplet.java
//   Copyright (c) 1999 ENDO Yasuyuki
//                      mailto:yasuyuki@javaopen.org
//                      http://www.javaopen.org/j3dbook/index.html

import java.applet.*;
import java.awt.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.geometry.Sphere;

public class LightingApplet extends Applet {
  public LightingApplet() {
    GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
    Canvas3D canvas = new Canvas3D(config);
    this.setLayout(new BorderLayout());
    this.add(canvas, BorderLayout.CENTER);
    
    SimpleUniverse universe = new SimpleUniverse(canvas);
    universe.getViewingPlatform().setNominalViewingTransform();
    
    universe.addBranchGraph(createSceneGraph());
  }
  
  private BranchGroup createSceneGraph() {
    BranchGroup root = new BranchGroup();
    
    DirectionalLight light =
      new DirectionalLight( new Color3f(1.0f, 0.0f, 0.0f), 
                            new Vector3f(-0.57f, -0.57f, -0.57f) );
    BoundingSphere bounds = new BoundingSphere(new Point3d(), 100.0);
    light.setInfluencingBounds(bounds);
    root.addChild(light);

    Sphere sphere = new Sphere(0.6f);
    root.addChild(sphere);
    
    return root;
  }

  public static void main(String[] args) {
    LightingApplet applet = new LightingApplet();
    Frame frame = new MainFrame(applet, 500, 500);
  }
}