A Spin Color cube using java3D

package Java3D;

import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.SimpleUniverse;
import javax.media.j3d.Alpha;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Point3d;
public class SpinCube {
    public SpinCube(){
        SimpleUniverse uni = new SimpleUniverse();
        uni.getViewingPlatform().setNominalViewingTransform();
        BranchGroup group = createSceneGraph();
       
        uni.addBranchGraph(group);
    }

    private BranchGroup createSceneGraph() {
        BranchGroup branch = new BranchGroup();
        TransformGroup trans = new TransformGroup();
        trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
        trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
        branch.addChild(trans);
        ColorCube cube = new ColorCube(0.4);
        trans.addChild(cube);
        Alpha spin = new Alpha(-1,1000);
        RotationInterpolator rotate = new RotationInterpolator(spin,trans);
        rotate.setSchedulingBounds(new BoundingSphere(new Point3d(),1000.0));
        trans.addChild(rotate);
        branch.compile();
        return branch;
    }
    public static void main(String[] args){
        new SpinCube();
    }
}