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yule01
01-16-2008, 12:20 AM
I'm trying to render my characters in seperate passes in Maya. Any character with SSS (using the 20MixLayer) will not render properly. I try to render diffuse, spec and shadow seperately but it always merges them. If I try rendering just spec, It merges diffuse and spec. If I try just shadow, It merges diffuse and shadow. Diffuse is the only one that renders properly. In my render layer options, I'm sure not to have beauty or color layers selected for render. Do I need to have a certain option clicked somewhere for the object? All of my other objects that just have blinn shaders render fine, so whats up?!
Bitter
01-16-2008, 05:32 AM
The renderlayers set to render passes work with Maya shaders fine. . .mental ray shaders do not obey that rule. (Welcome to framebuffers but that's a discussion elsewhere) You have to set up the pass manually. If it's skin you can make a pass by turning down the weight of each section except one to Zero and render that pass. Then go down the attributes one by one turning all of them off except one. There is an example on Autodesk Area but I can't seem to find that right now.
yule01
01-16-2008, 07:32 AM
Thanks Bitter! Thought about doing that, but was hoping all I had to do was check something in the attributes. Thanks again.
yule01
01-16-2008, 07:47 AM
Hey maybe you can help me with another problem. I'm using transperancy maps to give a lacey design to my characters clothes. Looks fine when rendered out, but when I import images into Affter Effects (4.5) to render out, theres black where you should be able to see skin under the cloth. Is this a 8 /16 bit type problem?

THanks again!
Bitter
01-16-2008, 07:55 AM
What shader is it? If it's mental ray, be sure under custom entities "pass custom alpha" is on in the render settings. Also check in after effects to see if the images are being brought in premultiplied or not.
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