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Review fog in PSH #29

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JayFoxRox opened this issue Feb 17, 2019 · 0 comments

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JayFoxRox commented Feb 17, 2019

When the parameter is ALPHA, an parameter
of FOG generates an INVALID_OPERATION error. The alpha component of
the fog register is only available in the final combiner. The alpha
component of the fog register is the fragment's fog factor when fog
is enabled; otherwise, the alpha component of the fog register is
one.

from https://www.khronos.org/registry/OpenGL/extensions/NV/NV_register_combiners.txt

I don't think we handle this.

Issue should be moved upstream if confirmed.

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