With GPU matte object is visible in render

V-Ray V-Ray for Blender V-Ray for Blender :: Issues
1

As title say, is this a bug, or I do something wrong?

Look screens

Thank you

gpu
gpu2560×1440 187 KB

cpu
cpu2560×1440 186 KB

2

Could it somehow be related to this post? Matte Surface Broken in combination with animation - #6 by bozhidar_ivanov
Or does it strictly happen with GPU? The problem from the post above affects both static objects in animation and modifying matte objects in interactive.

3

From what I see, mine happens only with gpu.

Thanks, I will check that build.

So I checked and it is not resolved, still happens with GPU.

Thanks

4

From what I remember mattes in V-Ray GPU require alpha contribution under -0.9 i.e. under -0.9 matte, any other alpha contribution results in fully opaque object. At that point it’s more of a shadow catcher and you can also use our shadow catcher command.