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Shadow Pass

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SSGGMM
Shadow Pass
on Jul 8, 2007 at 5:23:06 pm

My scene contains both Dmap and raytrace shadows, depending on the light. I'm doing the "use background" shader approach for the shadow pass, rendering with MR. The problem is that the lights using RT shadows aren't casting. All the basic check marks are in place (or so I would think - Maya 8.5's mental ray tab has a whole new set of Shadow settings which I hesitate to toy with).

How do I get my raytrace shadows to appear on that alpha channel?


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Steve Sayer
Re: Shadow Pass
on Jul 9, 2007 at 1:42:42 am

Sorry to sidestep the question, but why do you need to use MR if you're just getting an alpha pass for the shadows? The Maya software renderer should produce the results you're looking for without any headaches.

-Steve


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SSGGMM
Re: Shadow Pass
on Jul 9, 2007 at 2:53:27 pm

I suppose you're right. Bugs me anyway. I'll switch.


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jo_graphix
Re: Shadow Pass
on Aug 23, 2007 at 7:28:05 am


i am not sure that maya renderer has same quality shadows...
as mental ray...


any other solution to catch shadows but in mental ray, ? maybe mental ray specific shader..??

thanks for any help.


this soft shadows rendered with mental ray:

http://test.graphixmotion.com/bureau_v1.9b_cam_3.jpg



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