GTX 1080 - VRay RT GPU CUDA not working (Vray 2.0 - Rhino)

V-Ray V-Ray GPU Issues
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1

Hi Guys,

I can’t seem to get vrayRT to work with my GPU. I never have used RT GPU on this machine as the previous GPU wasn’t supported, this new one surely should be supported.

The error I am seeing in the DRSpawner log is:

./src/ocl_tracedevice.cpp(1052) : Driver API error : 400

Any help is greatly appreciated!

Thank you,

Tom

2

Now it just crashes.

This is the last line before it crashes:

./src/ocl_tracedevice.cpp(2705) : Driver API error : 400

3

Could you update to the latest nVidia driver?

4

Hi Zdravko, I have done this. Same problem.

I decided to give the vray 3 trial a go and it seems to be half working.. texture bitmaps, emissive materials and 2sidied materials don’t seem to be working correctly when using interactive gpu rendering.

5

Here you can find a list with supported materials for the RT GPU: Chaos Docs
Textures and 2sided materials should render fine. Which emissive materials do you have in mind? Can you share a simple scene?