importPackage(java.awt);
importPackage(javax.swing);
importPackage(javax.media.j3d);
importPackage(javax.vecmath);
importPackage(com.sun.j3d.utils.universe);

var frame = new JFrame();
frame.setTitle("Hello, World");
frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
frame.setSize(640,480);

var canvas3D = createCanvas3D(frame);
var scene = createSceneGraph();
connect(canvas3D, scene);

frame.setVisible(true);

function createCanvas3D( frame ) {
    frame.getContentPane().setLayout(new BorderLayout());
    var config = SimpleUniverse.getPreferredConfiguration();
    var canvas3D = new Canvas3D(config);
    frame.getContentPane().add(canvas3D);
    return canvas3D;
}

function createSceneGraph() {
    var objRoot = new BranchGroup();
    var mover = moveTextBack();
    var spinner = createSpinner();
    var rotator = new RotationInterpolator(new Alpha(-1, 4000), spinner, new Transform3D(), 0.0, Math.PI * 2);
    rotator.setSchedulingBounds( new BoundingSphere() );
    spinner.addChild(rotator);
    objRoot.addChild(mover);
    mover.addChild(spinner);
    spinner.addChild( createTextShape());
    setLighting(mover);
    return objRoot;
}

function createSpinner() {
    var spinner = new TransformGroup();
    spinner.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    return spinner;
}

function moveTextBack() {
    var transform3D = new Transform3D();
    transform3D.setTranslation(new Vector3f(0.0, 0.0, -10.0));
    return new TransformGroup(transform3D);
}

function createTextShape() {
    var textAppear = new Appearance();
    textAppear.setMaterial(new Material());
    var font3D = new Font3D(new Font("ＭＳ Ｐゴシック", Font.PLAIN, 1), new FontExtrusion());
    var textGeom = new Text3D(font3D, new String("Hello, Java 3D World!"));
    textGeom.setAlignment(Text3D.ALIGN_CENTER);
    var textShape = new Shape3D();
    textShape.setGeometry(textGeom);
    textShape.setAppearance(textAppear);
    return textShape;
}

function setLighting( objMove ) {
    var light = new DirectionalLight();
    light.setInfluencingBounds(new BoundingSphere());
    light.setDirection(new Vector3f(0.0,0.0,-1.0));
    light.setColor(new Color3f(1.0, 1.0, 1.0));
    objMove.addChild(light);
}

function connect( canvas3D, scene ) {
    var universe = new SimpleUniverse(canvas3D);
    universe.getViewingPlatform().setNominalViewingTransform();
    universe.addBranchGraph(scene);
}

while(1) {java.lang.Thread.sleep(1000);}