Fog, z-buffer, and post processing

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Jude Anthony (jude++at++p3.enzian.com)
Fri, 20 Sep 1996 11:00:41 EST

Thanks to everyone who's been trying to help me out. Almost everyone
has recommended spline fog. Unfortunately, when I tried spline fog
in Vega, it didn't work properly. In addition, we have an Earth/Sky
environment with clouds, which I am required to not obscure.
Finally, I am restricted to working in IrisGL, not OpenGL.

Anyone know how to read the depth buffer in IrisGL? It still looks
to me like post-processing the frame to blend the sky color into
distant object pixels is still my best bet.

Onyx/IR2 machine.

Thanks,
Jude Anthony
jude++at++p3.enzian.com
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