Page 1 of 1

Render crash on Nvidia GPUs but works on Amd GPUs

Posted: Thu Apr 02, 2020 5:49 pm
by SIRIO DEPERO
Hi, I've a problem to render a scene on my new pc, that didn't exsist on my older one and I can't figure it out why.
When I try to render the scene below, blender istantly crashes.
test vetro-cemento.jpg
Everything worked sucessfully on two GPU AMD 580 rx, but not now on two Nvidia GeForce RTX 2070.
End of the log:
Error : Unrecognized Exception
Address : 0x00007FF932D3A839
Module : C:\WINDOWS\System32\KERNELBASE.dll

I noticed the problem is with the windows. I tried to change some settings, but I don't think I fixed the problem.
Window material is a glass material with a homogeneous volume node. If I change homogeneous volume with a clear volume node, then render starts. The same happens if I deleted all the area lights behind the windows (maybe are too many).

So I'd like to understand what's causing the problem and why it wasn't there on Amd GPUs.

Re: Render crash on Nvidia GPUs but works on Amd GPUs

Posted: Thu Apr 02, 2020 6:27 pm
by B.Y.O.B.
Can you upload the scene?
Which version of LuxCore are you using?

Re: Render crash on Nvidia GPUs but works on Amd GPUs

Posted: Thu Apr 02, 2020 7:15 pm
by Dade
SIRIO DEPERO wrote: Thu Apr 02, 2020 5:49 pm I noticed the problem is with the windows.
Sometime, Windows Update breaks NVIDIA OpenCL driver installation. It is something we have seen to happen in the past. Can you try to re-install NVIDIA drivers ?

Re: Render crash on Nvidia GPUs but works on Amd GPUs

Posted: Thu Apr 02, 2020 10:11 pm
by SIRIO DEPERO
Dade wrote: Thu Apr 02, 2020 7:15 pm Sometime, Windows Update breaks NVIDIA OpenCL driver installation. It is something we have seen to happen in the past. Can you try to re-install NVIDIA drivers ?
I installed Nvidia drivers two days ago, when the pc was delivered to me, but I can re-install them to make sure they work properly.
B.Y.O.B. wrote: Thu Apr 02, 2020 6:27 pm Can you upload the scene?
Which version of LuxCore are you using?
This is the scene: https://we.tl/t-UnAqHqIVfK
BlendLuxCore v 2.2

Re: Render crash on Nvidia GPUs but works on Amd GPUs

Posted: Thu Apr 02, 2020 11:12 pm
by B.Y.O.B.
SIRIO DEPERO wrote: Thu Apr 02, 2020 10:11 pm BlendLuxCore v 2.2
Does it also crash with v2.3?

Re: Render crash on Nvidia GPUs but works on Amd GPUs

Posted: Fri Apr 03, 2020 8:37 am
by SIRIO DEPERO
B.Y.O.B. wrote: Thu Apr 02, 2020 11:12 pm
SIRIO DEPERO wrote: Thu Apr 02, 2020 10:11 pm BlendLuxCore v 2.2
Does it also crash with v2.3?
No, it doesn't. Thank you a lot!! :D :D