Dan Lee
dlee
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SideFX Staff
Since Sep 2016
Recent Forum Posts
Houdini 21 fur rendering issues Jan. 26, 2026, 4:16 p.m.
This will be addressed in the upcoming daily build (21.0.608). Thank you for helping us find the bug.
Houdini 21 fur rendering issues Jan. 16, 2026, 12:44 p.m.
Can you post the .hip file here?
Refreshing .rat textures, how? Dec. 2, 2025, 4 p.m.
BrianHanke
I just revisited this in Houdini 21 and the situation with Karma is slightly worse. XPU now locks textures too and no amount of updating textures or restarting renders does anything.
It's not a Solaris thing. RenderMan 27 works great: no file lock, change your texture, click restart and the render instantly updates to the latest version.
We did find a file lock bug relating to non-RAT textures on CPU on Windows, but otherwise unable to reproduce the problem in any other combinations.
Can you please file a bug, including your platform, texture format, and a reproducible case if you have one. Thanks.