brians
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SideFX Staff
Since May 2019
Recent Forum Posts
Ramps in shaders broken for Karma XPU Jan. 9, 2026, 7:30 p.m.
It seem the NVidia 590 range of drivers have a bug.
What happens if you roll back to a 580 driver? (eg 581.57)
What happens if you roll back to a 580 driver? (eg 581.57)
Weird color difference XPU/CPU Jan. 6, 2026, 8:39 p.m.
Seems a 590 driver bug.
A short-term workaround seems to be to set this envvar
KARMA_XPU_OPTIX_FORCE_OPTIXIR=1
A short-term workaround seems to be to set this envvar
KARMA_XPU_OPTIX_FORCE_OPTIXIR=1
Weird color difference XPU/CPU Dec. 20, 2025, 5:11 a.m.
Thanks for posting!
Given the proximity to Christmas, it may be a while before it gets looked at. Hope thats ok.
Given the proximity to Christmas, it may be a while before it gets looked at. Hope thats ok.