Why isn't my object being displayed?
===

Here is a 3D model I made using Art of Illusion:

![enter image description here][1]


  [1]: http://i.stack.imgur.com/4hteM.png

I followed this tutorial to make the hourglass for all of those who are interested:

 - http://www.artofillusion.org/docs/hourglasstut/index

I exported it to a file called hourglass.obj. Now, here is the code I am using to try to display the object:
    
    public class LoadAnObject extends Applet
    {
        public LoadAnObject()
        {
            setLayout(new BorderLayout());
            GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
            Canvas3D canvas = new Canvas3D(config);
            add("Center", canvas);
            
            BranchGroup content = getScene();
            content.compile();
            
            SimpleUniverse universe = new SimpleUniverse(canvas);
            universe.getViewingPlatform().setNominalViewingTransform();
            universe.addBranchGraph(content);
        }
        
        public BranchGroup getScene()
        {
            BranchGroup group = new BranchGroup();
            
            ObjectFile object = new ObjectFile();
            Scene scene = null;
            
            try
            {
                scene = object.load("/Users/John/ArtOfIllusion/Hourglass.obj");
            }catch(Exception e){e.printStackTrace();}
            
            group.addChild(scene.getSceneGroup());
            return group;
        }
        
        public static void main(String args[])
        {
            Frame frame = new MainFrame(new LoadAnObject(), 256, 256);
        }
    }

No errors whatsoever when I compile it or run it, I just get a blank universe when it loads. I got this code from here:

 - http://java.sun.com/developer/onlineTraining/java3d/j3d_tutorial_ch3.pdf
(see page 3)

Why isn't my object being displayed in the universe?
