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Matte/shadow material with alpha channel
show user profile  PaulJBis
Hi all:

I'm trying to create a matte object defined by a bitmap. In other words: I have a box, and I want to map on it a bitmap, and have the opaque parts of it appear on the scene as a matte object, while the transparent parts are transparent.

The way I've been doing it (suggested by searches here and elsewhere) has been to create a blend material, add to it a matte/shadow material and a 100% transparent standard one, and add as a mask the bitmap, but it doesn't work. When I render the scene, the box doesn't appear at all (not even the matte parts); oddly, if I make the standard material opaque (either 100% opaque, or 50%, or 40%), then it does appear, and the matte parts show up too. What am I doing wrong?
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2/23/2012 1:22:38 PM (last edit: 2/23/2012 1:22:38 PM)
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