denoiser works only on CPU

[Mnietek2707]

How can I force denoiser to work on GPU?
"Harware acceleration" switch in denoiser parameters doesn't matter.
I reinstalled drivers (graphic card - Quadro K5000)

Here is screeshot from GpuCapsViewer - OpenCL is fine:
.

There is nothing about this in logs:


V-ray 3.40.03, win 10, 3ds max 2017
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sorry for my English

[savage309]

The denoiser tries to find the fastest device on your machine. This is done by querying all OpenCL stats (there is no standard for how those stats are being reported, so every vendor - Intel/AMD/NVIDIA reports them in their own way) and trying to guess. In this case, the denoiser is picking the Xeon instead of the NVIDIA GPU.

You can override that automatic device picking with env var VRAY_OCL_DENOISER_DEVICES=nvidia
You have to restart 3ds Max in order the change to have effect.

Best,
Blago.