Your starting point is the Raster class:
javax.media.j3d.Raster
This has methods for reading both the frame buffer
and the depth buffer:
ImageComponent2D getImage()
DepthComponent getDepthComponent()
When I used this I was rendering to an offscreen Canvas3D.
I'm not sure you have access to the buffers for onscreen
rendering.
Good luck.
Anthony.
------------------------------
Dr. Anthony Ashbrook
3D Imaging Consultant
+44 131 662 4153
[EMAIL PROTECTED]
http://www.anthonyashbrook.net
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