Vray not rendering scene - error message "failed to allocate..."

[kangoocarl1]

Hello guys,

I am having a Max scene with very highres textures, and cannot get it to render via GPU, the following error message I am getting:

[2020/Oct/27|11:30:01] error: Failed to allocate 22020096 bytes, device 1, buffer default bufname
[2020/Oct/27|11:30:01] error: D:\cgrepo\vraysdk\samples\vray_plugins\rt_private\ rt_opencl_pri(3742) : CUDA error 2 : unable to allocate enough memory to perform the requested operation (out-of-mem)

Could this be related to texture sizes? I am using a RTX 8GB card in that particular machine...

Thanks,
Martin

[nikoleta.garkova]

Hi Martin

It may be exactly what you are guessing. Can you make sure that the GPU Textures are set to On-demand mip-mapped instead of Full-size and see if the issue persists? You can read more here: https://docs.chaosgroup.com/display/VMAX/GPU+Textures

We've also got a very detailed article on Memory Usage Optimizations for GPU Rendering, you might want to check it out.

[kangoocarl1]

Hi Nikolata,

thanks for your answer - that did fix my issue! Great!

Have a nice day,
Martin

[nikoleta.garkova]

Great to hear!