I noticed that when I render via GPU there is no AA in object ID channel… is that a known fact or bug?
Dear @tomas_ozvold , hello.
Yes, GPU support of ObjectID is partial and this is listed in our docs.
Please take a look here (Footnote 14).
V-Ray GPU Supported Features is a very helpful page no matter which host platform you are using, since regarding this topic there are very slight differences if V-Ray integrations are compared.
Best regards,
TS