vray gpu override (rhino)

[citro3101]

I noticed that material override on GPU using Brute Force/Light Cache, causes Gi bleeding. But (Brute /Brute ) will does it correctly. CPU no bleeding in both modes.

Is this an bug ?

[natalia.gruzdova]

Hello citro3101,
Thank you for posting!

Can you please share which exact V-Ray build you are using (V-Ray>Help>About V-Ray)?

I made a similar setup to yours with V-Ray 7.00.03 and I do not see any differences between CPU and GPU with Brute Force or Light Cache.



Perhaps there is something different in your project - could you please share it? Make an archive with the Pack Project tool (V-Ray>Pack Project) and open a ticket (request type: Product usage questions or issues) where you can upload it.

Thanks!

[citro3101]

Hi Natalia,
im using same version 7.00.03 and nvidia driver 572.16

i created a new file just to test it..see attachment..

So one CPU( no bleeding) GPU(Bruteforce bruteforce) no bleed ..and the with without any text is GPU, BRUTe force and lightcache, which has a red bleedingf on the sphere.

[natalia.gruzdova]

Hello, please share any of your test scenes either in ticket or attach it here on forum (make sure to zip it). Thank you.

[citro3101]

attached the file, its just a sphere on a box.

[natalia.gruzdova]

Thank you for the file! Apparently I was checking global Material Override instead of Override material. I will do some tests and update you soon.

[natalia.gruzdova]

Hello, I want to share that the issue is logged in our internal system as VRW-4810. Your forum post is linked to it and once there are any updates on this matter we will inform you. In the meantime as you have noted you may use Brute Force GI with GPU.
Thank you for the report!