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heppe
Beginner
124 Views

specular light in opengl

We are finding that specular lighting is missing from opengl in our application. The problem spans the entire range of intel express integrated chipsets, both XP and Vista. It does not, however show up with other vendors' (AMD/NVidia) opengl implementations. Is that a known problem?

Thanks,

-Travis

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5 Replies
Chuck_De_Sylva
Beginner
124 Views

On which Intel graphics part are you running?
heppe
Beginner
124 Views

82915G and 82G965 at least, and perhaps one or two others. XP and Vista.

-Travis

Chuck_De_Sylva
Beginner
124 Views

Can you mail me a test case?
Chris_M_Intel
Employee
124 Views

Wow, this looks like an old issue. I'll push a bug over to the development team and see if we can get this resolved.


Chris

Chris_M_Intel
Employee
124 Views

... and in a lightning turn-around of only 7 months, the driver team has found a bug in the OGL driver logic dealing with GL_SEPARATE_SPECULAR_COLOR. They don't have a fix as of yet, but they've identified the problem. I figured I'd keep this updated given the hectic progress on this issue so far...

Chris

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