V-Ray GPU for Houdini Freezing System on Second Render

V-Ray V-Ray for Houdini Issues
1

Hi, we are facing a critical issue using V-Ray GPU (RTX) in Houdini:

  • The first render completes fine.
  • The second render, in the same session, freezes the entire system, requiring a hard reboot.
  • When checking windows resources, GPU memory drops back down after the first render
  • Tried multiple NVIDIA drivers, different scenes — same result.

Is there any log files saved when Vray crashed? Please advise.
Thx

V-Ray for Houdini hash:6cf69be from 28 Jan 2025 17:05
V-Ray Core 7.00.10 [125d49e9] from 23 Jan 2025
Houdini FX Version 20.5.487
Version 572.16​
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2

Hi again,

Could you please confirm is it happening only when using RTX engine?
What about CUDA or CPU?

Is it happening in a new simple file?
If not, we may need the file to test it in our environment archived via V-Ray > Pack Scene and share via our contact form.
But in general:

  • please try with a more recent V-Ray version
  • share graphics card type
  • confirm the behaviour when using CUDA (CPU only / CPU+GPU / GPU only) and CPU

Waiting for your answer.

Best,
TS

3

Hi,Thanks for your reply I will try with the most recent version and let you know.
Best,