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joel3d
06-02-2005, 11:17 PM
When rendering, the specular highlights are missing on transparent surfaces. I had the same thing happen last year (using5.0), I was able to fix the problem by rendering with MentalRay, going to the Framebuffer attributes and switching from RAW to RGB, and also unchecking Premultiply.

Here is a link to that thread. (http://cgtalk.com/showthread.php?t=137937&highlight=premultiply)

Now I am having trouble with Maya6.5 renders...On a Mac.

Rendered with Mental ray. Non-Premultiplyed= Jagged Alpha channel.
http://www.joel3d.com/JPG/MayaAlphaChannels/MR_NonPremultiply.jpg

Rendered with Maya standard, Non-Premultiplyed...Smooth alpha, but missing specular highlights in transparent areas.
http://www.joel3d.com/JPG/MayaAlphaChannels/MayaNonPremultiply.jpg

Finally, rendering with both Maya and MR, with Premultiply checked.= Dark outline around objects.
http://www.joel3d.com/JPG/MayaAlphaChannels/MR_Premultiply.jpg

BTW, I am working on a Mac for the first time...Any suggestions will be appreciated. These renders all look like........
morimitsu
06-03-2005, 04:34 AM
I´m having the same problem.
Here`s the link.
http://www.cgtalk.com/showthread.php?t=246164

I´m not sure how to solve it, too.

Any help is very appreciated.
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06-03-2005, 04:34 AM
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