VRay Matte for refl/refr option not working with Mulit/Sub-Object Material

V-Ray V-Ray for 3ds Max Issues
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1

I am using 3dsMax 2010 64Bit and the latest VRay release. I also tested this with the last nightly release which did not change the results.

I am rendering only the reflections of a character in the background objects.
For this I activate in the VRay properties for the background objects the following settings:

Matte object - active
Matte for refl/refr - active
Alpha contribution - “1”

Now the renderesult is a black background object with only the reflections of my character.
This works like a charm with a normal single VRay Material.

As soon as I place the same VRay Material in a Multi/Sub-Object Material, I don’t get this reflections and my background object ist pure black.

Adding an VrayMtlWrapper above this Multi/Sub-Object did not fix this issue.

I hope this is just a minor bug, because I could really need this feature working with Muli/Sub-Materials.

Thanks for your time,
Alex

2

plus 1 for this.. a while back i made a wishlist post but i believe this request has been buried.

http://www.chaosgroup.com/forums/vbulletin/showthread.php?66603-matte-reflection-support-for-all-materials

3

Thanks a lot gimiky, haven’t found your thread before.
It’s too bad it hasn’t made it into a release yet.

We use Multi/Sub-Object Materials a lot in production and in this case it would be time-consuming to seperate the reflective materials.