Arnold Render Glass Alpha Propagate not working

#1

My problem is super basic, and this has probably been asked a million times though I cant find anything through searching long and hard.

MR and Vray has Propagate alpha for glass materials, because a solid white alpha for a glass object is not desireable.

So my question is; How do I propagate my refractive alpha in Arnold Render for maya!?

THANKS!! :wink:

#2

I will get things started by saying I have tried a bunch of ways and never gotten it to work.
I would really love to know this as well.