alpha channel vray gpu grasshopper not working

V-Ray V-Ray for Rhino Issues
1

So have a simple wrapper material for a background..if i render with CPU the Alpha shows fine, but if i select gpu-..it doesnt work.

Any solution?

2

Hello,

Screen shots of relevant information would be useful, like CPU vs GPU output for visual comparison.

3

solved.. gpu alpha only works with matte disabled for secondary and then cpu works in both scenarios.. thanks.

4

Hi @citro3101 ​,
Also note that with V-Ray GPU the indirect light is not affecting matte surfaces.