Final word on reading the Z-buffer in Performer 2.0

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Janet Estabridis (janete++at++pistilmac1.chinalake.navy.mil)
Fri, 27 Sep 1996 14:38:52 +0000

Some information:

RE2, IRIX 5.3 --

You can read the zbuffer successfully from Performer 2.0 in a draw callback
routine using glReadPixels. You can have texturing enabled and
multisampling visual enabled. I have now succeeded thanks to Jenny at SGI.
Things work like they are supposed to, I just swapped GL_FLOAT and
GL_DEPTH_COMPONENT in the glReadPixels and I never caught it until I sent
her my code.

Janet Estabridis
NAWC China Lake
Code 4722E0D (619) 939-6984

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