Lights issues with GPU. Vray 7.10

Cloud Cloud Rendering Cloud Rendering :: Issues
1

In this sample render, as you can see below, there is a strange whitened rectangle when I render with GPU. But when I render with the exact same parameters with CPU, that strange rectangle is not there.

Wondering what can be causing the problem with the GPU renderer.

image.jpg
image.jpg1313×741 150 KB

2

Hi,

Not sure what can be the issue here, it would be best to send us the scene for troubleshooting via :https://support.chaos.com/hc/en-us/requests/new

3

Hello @tashko.zashev

Here is more info.

I’ve done a very simple render with Sketchup including this lamp from Chaos Cosmos library (called Limbus Chandelier more specifically)

This is the result with GPU

82MVRQJ.jpg
82MVRQJ.jpg957×715 41.1 KB

This is the result with CPU

S1VIXeE.jpg
S1VIXeE.jpg936×690 41.3 KB

Same parameters and everything.

This is the Sketchup file with the asset
https://f003.backblazeb2.com/file/wordpress-videos/wp-videos/2025/09/example.skp

But given that it is in the Chaos Cosmos library, I think it’s pretty straightforward to reproduce this GPU bug.

4

Thank you! It is reproducible and will log this to our bug tracker.