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Use the alpha of an image as a mask

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julien brunUse the alpha of an image as a mask
by on May 28, 2010 at 11:56:20 pm

Hello,
I can not assign an alpha channel to an image, So that it uses the APHA another sequence. I think that's stupid, In any case with the software that the shake is, But under After Effects I can not figure out how to.
Thank you in advance for your reply!


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Todd KoprivaRe: Use the alpha of an image as a mask
by on May 29, 2010 at 5:04:09 am

Check out track mattes.

Here's a summary of various ways of creating and using transparency in After Effects: "Compositing overview and resources"

Or you could just begin at the beginning:
"Getting started with After Effects"

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Todd Kopriva, Adobe Systems Incorporated
putting the 'T' back in 'RTFM' : After Effects Help on the Web
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julien brunRe: Use the alpha of an image as a mask
by on May 29, 2010 at 11:15:05 am

Thanks!


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