Cyptomatte breaking multimattes

[francomanko]

Hi,

So I noticed my multi matte's were rendering out incorrectly in GPU IPR and Progressive mode.

The issue appears to be related to having the cyptomatte in the render elements. The odd thing is that if i delete it, multimattes work again...and if i re-add a cyptomatte, the multimatte continues to work. So somethings probably got corrupted so I thought i would share the scene.

I've added scene and video.

Maya 2022
Vray v5.10.22, revision 30924 from Aug 5 2021

[hermit.crab]

Seems to get fixed by removing the BumpNormals as well, although getting a Render Loop after I add the element again. I'll continue investigating and write back.

[Dimitrina.Milanova]

Hello there,

Fortunatelly, our Developers already know about the problem and it is already fixed with V-Ray for Maya nightly builds.
However, the fix for the problem will need to be added to our V-Ray for Maya stable builds.
I will update you once the problem has been fixed in our stable builds, for you to check on your side and confirm is it is still reproducable.

Kind Regards,
Dimitrina

[francomanko]

ah nice, thx for update.