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matte material for compositing separate passes??
Posted: Fri Jul 27, 2007 3:37 pm
by Peter Shupe
Is there a way to apply matte material in Maxwell to output alpha channels to composite later? I have cars, and people, and trees, etc that I would like to render out in a separate pass, and that way I can modify them independently from the background??
Please advise. Any recommendations are greatly appreciated. Thanks.
Regards Peter.
Posted: Fri Jul 27, 2007 6:48 pm
by misterasset
You might be able to try the Material ID and the Object ID output formats. I haven't tried it (I'm at the office).
It wouldn't render them out in a seperate pass, but it would give you more options in Photoshop than just the Alpha Channel.
Chris
Posted: Fri Jul 27, 2007 7:19 pm
by ivox3
That's exactly what those channels are for...
You can group objects by apply the same material to them and output a Material ID, ... those objects should have a single color applied, ...and that should make for an easy selection in PS.
There's a lot of flexibility with the object/material passes, ...you just have to start playing around and you can quickly see how to manipulate it to your needs.