Recent Forum Posts
Noob questions about ALab 2.0 and USD itself Dec. 22, 2022, 4:30 a.m.
Njordy, TOPs is great for that. File pattern to recursively find all .exr textures, then generic generator to run command line job for the conversion. I used maketx, but you can use imaketx or iconvert from the Houdini bin folder too. The last thing to do is to point the materials to new tx instead of exr by editing the usda files. Again you can do that with file pattern to load the files, and edit the string inside with python TOP, replacing .exr with .tx
Karma Volumetric Light Source Sharpness Sept. 5, 2022, 7:49 a.m.
You can play with the anisotropy on the volume and uncheck Render light geometry, here`s quick setup:
Noob questions about ALab 2.0 and USD itself Aug. 8, 2022, 2:39 p.m.
I'm trying to render this alab 2.0 scene with Karma and I'm finding that it's unrenderable. Even though the 1k textures are mipmapped, memory use balloons to 25 gigs and estimated render time is over a 30 hours. CPU usage is barely registering. It seems like it's texture thrashing. @Mark Elendt any ideas? I'd rather not have to convert everything to RAT images, I was under the impression that mipmapped EXR would also be efficient to render.
I just filled an issue/RFE, the poor performance seems to be related to EXR textures. Converted all 7561 textures coming in the base pack to .TX, adjusted all usda files accordingly, and after that with Karma ROP at default it will render under 5 minutes, on 64 threads PC. With EXR, eta was 12h+