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without precomping, multiple layers define alpha of Solid?

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Eric Chard
without precomping, multiple layers define alpha of Solid?
on Oct 11, 2013 at 4:32:02 am

gah, trying to remember how to do this:

I want 3 separate animated Shape layers to define the alpha of a fourth Solid layer, and I'd prefer to do so without precomping.

I thought I could do it w/Stencil alpha or Silhouette alpha, but I seem to be mistaken.

I'm thinking this is fairly simple, and i've just disremembered how to do it. >8^(


Thanks for any help!

++++++++++++++++
"Putting the HARM in 'harmonica' since 2005."
++++++++++++++++


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John Cuevas
Re: without precomping, multiple layers define alpha of Solid?
on Oct 11, 2013 at 11:08:33 am

One method would be to use the preserve underlying transparency toggle. It's the little "T", between Mode and Track Matte. You would set your solid above your solids and toggle it. It's not going to work if you have a full layer somewhere below the solid though.

Here's an example file, if you found what I said unclear: 6621_preserveunderlyingtransparency.aep.zip

Johnny Cuevas, Editor
Thinkck.com

"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.


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