VRayObjectProperties and Shading Groups?

[brobins]

Hi,

Is it possible to use VRayObjectProperties trace sets on a shading group?

For example, I would like to exclude one particular object from reflection into one particular shading group. I am just not quite sure how to set this up.

Any info would be appreciated.

Thanks,

Ben

[yolov]

VRayObjectProperties will only work with geometry objects... basically all types of geometry, but not shading nodes.

The object you need to *not* receive reflections from another object needs to have vrayObjectProperties assigned.
Then the object you wish to not reflect needs to be a member of the reflectionExcludeList.
Both vrayObjectProperties and the exclude lists are sets in Maya, so you can edit them with the relationship > sets editor.

[brobins]

Hey,

That's odd, the online documentation specifically calls out shading groups?

[yolov]

My bad, it will work, but only when shading groups are added to the excludeList. It will not work if the vrayObjectProperties are assigned to a shading group instead of an object. That's what I meant to say.
What does your setup look like?

[brobins]

Gotcha. So I can add a Shading Group to the excludeList via the relationship editor, essentially using the Shading Groups as a selection set. This makes sense now. Thanks!

[yolov]

Yes. The only thing you can't do is add the vrayObjectProperties itself to a shading group, as it always needs a mesh as input.
Also - one drawback when working with non-mesh objects in those exclude lists - they might not show in the outliner as members to the excludeList set. But they will show up in the set editor. Just keep that in mind.