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Green Screen Help!!!!! ASAP!
I am working on a green screen project. The green comes out really good, but when the subject moves rapidly, their forearms, hands, and/or fingers disappear. Why is this happening and how can I clean this up?
I have used color smoothing, chroma keyer (several times to get the most green out without using edge thinner), Spill suppressor, and matte choker. Suggestions of any kind will be greatly appreciated.
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2 Replies
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This most likely happens because of motion blur. During the exposure time of the frame your subjects arms/fingers etc. move which reveals/covers the greenscreen for only fraction of the exposure time. So these pixels should actually be semi transparent.
The only way to key that is to back down on your key settings, making sure that you have a softer key falloff. And absolutely do not choke the matte as that will eat away your semi transparent pixels. Then use spill suppression to get rid of the green tint.
But I doubt that the FCP keyer wll be able to give you a good key if your material is that difficult. If your source material is heavily compressed (DV or HDV) you will have a really hard time.
Stephan
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Yeah, we have offered similar suggestions on all of the other forums where this same question has appeared.
bogiesan
This is my standard sigfile so do not take it personally: “For crying out loud, read the freakin’ manual.”
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