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White shadows/edges after Keylight

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Irene DelponteWhite shadows/edges after Keylight
by on Jun 6, 2013 at 6:00:11 pm


I'm working on this animation and I have a problem: the chroma is perfect but when I apply Keylight I get these white shadows and edges. The edges disappear when I disable unpremultiply result, but I don't know what to do with the shadow. I tried different options and I'am not getting good results. I'm trying to avoid masks, but if I don't have another options I'll do it :P

Anyone can help?

Thanks a lot!!!

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Todd KoprivaRe: White shadows/edges after Keylight
by on Jun 6, 2013 at 9:49:25 pm

I'm guessing that this was shot with auto-sharpen/auto-contrast features turned on in the camera. These features must be left off in the camera, or else you'll get terrible ringing around objects and will have a devil of a time compositing with the footage.

See this:

Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog

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Irene DelponteRe: White shadows/edges after Keylight
by on Jun 7, 2013 at 12:18:03 pm

Thank you very much for your help!!!

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Roland R. KahlenbergRe: White shadows/edges after Keylight
by on Jun 6, 2013 at 11:46:05 pm

Key the shadows separately. If the issue persists, look into using blending modes or Fill and adjust opacity etc to taste.


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