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Use particular color of a layer as alpha

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Bram Burnham
Use particular color of a layer as alpha
on Jan 18, 2018 at 8:32:42 pm

Hi,

I have an animation with red shapes over a white background that is one layer above footage. How can I make the red part of the animation transparent while keeping the white part so that the red part serves as a "window" into the film?

Thanks in advance.


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Dave LaRonde
Re: Use particular color of a layer as alpha
on Jan 18, 2018 at 11:11:29 pm

Keylight.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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Tero Ahlfors
Re: Use particular color of a layer as alpha
on Jan 19, 2018 at 6:46:11 am

Set Matte effect might be a bit easier and faster.


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