CGTalk - Weird Shadow Pass

NeptuneImaging

01-14-2008, 10:09 PM

Hi, I am working on my shadow passes, but for some reason, I am getting very bright shadows instead of the normal black and white clips... has anyone ever seen this kind of shadow pass before? I rendered this from MR with the shadow shader and for some reason, I am getting an extra ambience where it should not be. Is there some sort of way to get the shadows to look correct

thanks

here is the render
http://www.xsibase.com/forum/attached/Soda_Pop_Kid_Soft_Shadow_Channel.0000.png

pgraham

01-17-2008, 03:23 PM

invert it.

This image represents the amount of shadow in each pixel, where "more shadow" is white and "less shadow" is black. It's the opposite of the amount of light in the scene.

robles

01-18-2008, 07:09 PM

you can use it as a matte

NeptuneImaging

01-18-2008, 09:41 PM

you can use it as a matte

Like in After Effects, I can go to my shadow image and go to Effects>Channels>Set Channels>and set the RGB to the Alpha channel...

And I found that it was the tone mapping that made my shadows brighter. I would have to make the black parts of the pass darker with levels.

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01-18-2008, 09:41 PM

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