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 * from this software without specific prior written permission.
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import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;

public class AntialiasingBug extends Applet {

    private SimpleUniverse u = null;
    ImageComponent2D imComp;

    private double mScale = 0.004;

    public BranchGroup createSceneGraph() {
        // Create the root of the branch graph
        BranchGroup objRoot = new BranchGroup();

        // Create the TransformGroup node and initialize it to the
        // identity. Enable the TRANSFORM_WRITE capability so that
        // our behavior code can modify it at run time. Add it to
        // the root of the subgraph.
        TransformGroup objTrans = new TransformGroup();

        objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);

        objRoot.addChild(objTrans);

        // Create a simple Shape3D node; add it to the scene graph.
        objTrans.addChild(new ColorCube(mScale));

        // Create a new Behavior object that will perform the
        // desired operation on the specified transform and add
        // it into the scene graph.
        Transform3D yAxis = new Transform3D();
        Alpha rotationAlpha = new Alpha(-1, 4000);
        yAxis.rotX(0.5);
        Transform3D xAxis = new Transform3D();
        xAxis.rotY(0.5);
        xAxis.mul(yAxis);
        objTrans.setTransform(xAxis);
        RotationInterpolator rotator =
            new RotationInterpolator(rotationAlpha, objTrans, yAxis,
                                     0.0f, (float) Math.PI*2.0f);
        BoundingSphere bounds =
            new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
        rotator.setSchedulingBounds(bounds);
        //      objRoot.addChild(rotator);

        // Have Java 3D perform optimizations on this scene graph.
        objRoot.compile();

        return objRoot;
    }

    public AntialiasingBug() {
        initOffScreen();
    }

    public void paint(Graphics g) {
        g.drawImage(imComp.getImage(), 0, 0, this);
    }

    public void initOffScreen() {

// Obtain graphics configuration
        GraphicsConfigTemplate3D template = new GraphicsConfigTemplate3D();
        GraphicsEnvironment env =
GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice device = env.getDefaultScreenDevice();
        GraphicsConfiguration config =
device.getBestConfiguration(template);
// Create offscreen canvas
        Canvas3D canvas = new Canvas3D(config, true);


        // Create a simple scene and attach it to the virtual universe
        BranchGroup scene = createSceneGraph();
        u = new SimpleUniverse(canvas);

        View mView = u.getViewer().getView();
    mView.setFieldOfView(0.78*2.5*mScale);
        // This will move the ViewPlatform back a bit so the
        // objects in the scene can be viewed.
//        u.getViewingPlatform().setNominalViewingTransform();

        // Calculate the distance from the to the imageplate.
        double viewDistance = mScale*2.5/Math.tan(mView.getFieldOfView()/2.0);

        // Assign this value to the ViewPlatform transform.
        Transform3D t3d = new Transform3D();
        t3d.set(new Vector3d(0.0, 0.0, viewDistance));
        u.getViewingPlatform().getViewPlatformTransform().setTransform(t3d);

        u.addBranchGraph(scene);

        //        mView.addCanvas3D(canvas);
// Set the offscreen to match the onscreen
        //        Screen3D sOn = ((Canvas3D)screenCanvas).getScreen3D();
        Screen3D sOff = canvas.getScreen3D();
        //        sOff.setSize(sOn.getSize());
        sOff.setSize(new Dimension(512, 512));
        sOff.setPhysicalScreenWidth(0.36124);
        sOff.setPhysicalScreenHeight(0.28899555);

        /*
        sOff.setPhysicalScreenWidth(sOn.getPhysicalScreenWidth());
        sOff.setPhysicalScreenHeight(sOn.getPhysicalScreenHeight());
        */
// Set offscreen buffer
        BufferedImage image = new BufferedImage(512, 512,
BufferedImage.TYPE_INT_RGB);
        imComp = new
ImageComponent2D(ImageComponent.FORMAT_RGB, image, true, false);
        imComp.setCapability(ImageComponent2D.ALLOW_IMAGE_READ);
        canvas.setOffScreenBuffer(imComp);
// Antialiasing
        if (canvas.getSceneAntialiasingAvailable())
                mView.setSceneAntialiasingEnable(true);
// Render to offscreen buffer
        mView.startView();
        canvas.renderOffScreenBuffer();
        canvas.waitForOffScreenRendering();
        mView.stopView();
    }

    public void destroy() {
        u.removeAllLocales();
    }

    //
    // The following allows AntialiasingBug to be run as an application
    // as well as an applet
    //
    public static void main(String[] args) {
        new MainFrame(new AntialiasingBug(), 512, 512);
    }
}