Nicolas Heluani

brians
Seems a 590 driver bug.
A short-term workaround seems to be to set this envvar
KARMA_XPU_OPTIX_FORCE_OPTIXIR=1

Thanks will give it a try soon enough. A bit busy in another project now, But will definitely come up soon enough.

brians
Thanks for posting!
Given the proximity to Christmas, it may be a while before it gets looked at. Hope thats ok.

No problem. Merry Christmas and enjoy your holidays!

brians
can you post a repro scene? (or better yet, file a bug)
thanks lots!

Sorry for the late reply, I was occupied with other tasks, here I've attached a sample Hip.
I've already posted the bug, though I am still not sure if this is a bug or some energy conservation issue with XPU I need to understand.
I will update this post as soon as I know the bug report number.

Thanks,
Nico.