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I really need Key-light suggestions

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Kyle OmlorI really need Key-light suggestions
by on Oct 19, 2011 at 4:27:30 pm

OK, I really need help with Key-light. No matter what I do, I get these green patches inside status mode. Obviously this means I have some serious transparency issues.

Please help, how do I get rid of these patches



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Steve BlackerRe: I really need Key-light suggestions
by on Oct 19, 2011 at 4:30:10 pm

Try adjusting the clip black and clip white parameters.

It's only work if you'd rather be doing something else...


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Kyle OmlorRe: I really need Key-light suggestions
by on Oct 19, 2011 at 7:24:29 pm

Maybe I'll upload a screen capture of what I'm doing. I'm clipping Black, clipping White, Screen Gain, doing everything I can think of, and it never comes out right


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Tudor "Ted" JelescuRe: I really need Key-light suggestions
by on Oct 19, 2011 at 9:40:51 pm

From what I see in your post, it looks like you may have DV or similar type of 411 compression in your footage. Not a good choice for chroma.
Here's a good tutorial on Keylight:
http://aftereffects.forgingfire.com/2009/04/28/advanced-keying-pt-5-refinin...

Tudor "Ted" Jelescu
Senior VFX Artist


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Todd KoprivaRe: I really need Key-light suggestions
by on Oct 19, 2011 at 8:24:06 pm

Don't try to use one instance of the keying effect on one layer to create your matte.

This is a very important conceptual hurdle for people who are new to color keying to get over.

The best multi-pass keying technique that I know of is described in Mark Christiansen's After Effects Studio Techniques book.

There's also a pretty good set of tutorials by Andrew Devis here on the COW. See this: "color keying tutorials from Andrew Devis (and more)"

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Technical Support for professional video software
After Effects Help & Support
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