rendering might be slower

V-Ray V-Ray GPU Issues
1

[09:50:42.188] Warning : Num samples per thread reduced to 32768, rendering might be slower

All textures are converted to 2K-TX, and I am getting the above error. These scenes never had memory issues earlier. Anything to do?

GPU 0

NVIDIA GeForce RTX 4090

Driver version: 32.0.15.6614
Driver date: 11/6/2024
DirectX version: 12 (FL 12.1)
Physical location: PCI bus 8, device 0, function 0

Utilization 0%
Dedicated GPU memory 9.4/24.0 GB
Shared GPU memory 0.3/64.0 GB
GPU Memory 9.8/88.0 GB

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2

Rebooting Windows solved it, so V-Ray isn’t releasing RAM.

Before the reboot, the est render times were 2-3 hours. Now, it is 35 minutes, which is what I would expect for this scene.

3

yeah im pretty sure im having the same issue since vray7. Quiting 3dsmax releases it for me.

4

If you’re using RTX as a GPU engine - this is a known issue (internal bug-tracker id: VGPU-6714) concerning a memory leak when rendering animations with RTX. Main thread here. To confirm - try rendering with CUDA and see if there’s a difference.

5

i think my issue might be something else memory related so i’ll create a new post if thats ok.

6

Please, go ahead.