I had a similar problem, in my JTabbedPane app,
where multiple JFrames containing Simple Universes ran fine. As soon as I
tried to change to VirtualUniverse and sensing the hardware configuration on
one panel, everything froze.
(------excerpt from the tutorial) ---------
GraphicsConfigTemplate3D tmpl = new GraphicsConfigTemplate3D();
GraphicsEnvironment env =
GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice device = env.getDefaultScreenDevice();
GraphicsConfiguration config = device.getBestConfiguration(tmpl);
canvas = new Canvas3D(config);
Then to finish, you create the canvas and it to the parent frame.
canvas = new Canvas3D(config);
add(canvas, BorderLayout.CENTER);
Of course, a simpler way of doing this is to create a canvas with a
null passed in, this achieves the same effect.
(------- end of excerpt from the tutorial) ---------
... a canvas with null passed in does background
config somehow? I used a null config and everything was fine again.
Of course that still left the problem of why supplying a config to Canvas3D
always created problems, but I didn't have time to chase it down
yet.
Peter
