GRAFICAS SEGUNDO CUBO GIRANDO EN Y

import com.sun.j3d.utils.applet.MainFrame;
import javax.swing.*;
import java.awt.*;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.geometry.ColorCube;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.*;
import java.applet.Applet;
public class cubo3 extends Applet
{
    public BranchGroup createSceneGraph()
    {
        BranchGroup objro=new BranchGroup();
        TransformGroup objs=new TransformGroup();
        objs.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
        objro.addChild(objs);
       
        objs.addChild(new ColorCube(0.5));
        Alpha rotar=new Alpha(-1,9000);//girar constante el -1 retraso 3000
        RotationInterpolator rotar2=new RotationInterpolator(rotar,objs);
        BoundingSphere bonos=new BoundingSphere();
        rotar2.setSchedulingBounds(bonos);
        objs.addChild(rotar2);
        return objro;
    }//fin del metodo
    public cubo3()
    {
        setLayout(new BorderLayout());
        GraphicsConfiguration config=SimpleUniverse.getPreferredConfiguration();
        Canvas3D canvas=new Canvas3D(config);
        add("Center",canvas);
        BranchGroup escena=createSceneGraph();
        SimpleUniverse su=new SimpleUniverse(canvas);
        su.getViewingPlatform().setNominalViewingTransform();
        su.addBranchGraph(escena);
    }//fin del constructor
    public static void main(String args[])
    {
        Frame frame=new MainFrame(new cubo3(),700,700);
    }
}