GPU - Shadow Catcher

V-Ray V-Ray for Cinema 4D Requests
1

Hi,

I have a scene with a shadow catcher and it doesn’t work in GPU mode, as visible in the docs.

I’m surprised since it did work in the other V-ray integration I’m using ( V-Ray for Modo ), which is older. So I guess it’s not a core issue ?

Thanks,

2

For the shadow catcher to work on V-Ray GPU you need to have the “Alpha Contribution” set to -1 under the Matte tab in the Object Properties tab. If this isn’t the case then we’ll have to check if it isn’t a bug. I’ll make sure to add this in the documentation as well.

3

Hi @shaio ,

I don’t have access to V-Ray anymore but I’m pretty sure it was a bug since it worked as expected in CPU with the correct setup.