/* Auteur: Nicolas JANEY         */
/* nicolas.janey@univ-fcomte.fr  */
/* Novembre 2001                 */

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

public class SimpleBackground extends Applet {

  public BranchGroup createSceneGraph(SimpleUniverse u) {
    BranchGroup objRoot = new BranchGroup();
	BoundingSphere largeBounds;
	largeBounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);
    { Background bg = new Background(new Color3f(0.5f,0.5f,0.5f)) ;
      bg.setApplicationBounds(largeBounds) ;
      objRoot.addChild(bg); }
    objRoot.compile();
    return objRoot;
    }

  public SimpleBackground() {
    setLayout(new BorderLayout());
    GraphicsConfiguration config;
    config = SimpleUniverse.getPreferredConfiguration();
    Canvas3D c = new Canvas3D(config);
    add("Center",c);
    SimpleUniverse u = new SimpleUniverse(c);
    BranchGroup scene = createSceneGraph(u);
    u.getViewingPlatform().setNominalViewingTransform();
    u.addBranchGraph(scene);
    }

  public static void main(String[] args) {
    new MainFrame(new SimpleBackground(),450,250);
    }
  }