ADOBE AFTER EFFECTS: Forum Expressions Tutorials Creative Cloud

Copying an alpha channel

COW Forums : Adobe After Effects

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
chris amosCopying an alpha channel
by on Jan 28, 2013 at 4:04:38 am

Hi

I am trying to create an effect similar to the ones seen in this Sting video:







The elements I have are the two different background layers, (Same location, but shot twice so they look different) and then a character walking on a green screen.

This is coming harder than I thought it would. I've keyed out the character walking, and I just need to copy the shape that's been keyed out onto one of the background layers so that the second background is revealed in the shape of the characters silhouette.

Kind of difficult to explain, but I think I am just wondering how to copy this key and apply it to another layer.

Thanks, Chris


Return to posts index

Darby EdelenRe: Copying an alpha channel
by on Jan 28, 2013 at 4:36:14 am

[chris amos] "Kind of difficult to explain, but I think I am just wondering how to copy this key and apply it to another layer."

Check out Track Mattes in the online help:

http://helpx.adobe.com/after-effects/using/alpha-channels-masks-mattes.html...

That would be the most straightforward method. Most alternatives would involve pre-composing.

Darby Edelen


Return to posts index

chris amosRe: Copying an alpha channel
by on Jan 28, 2013 at 4:49:18 am

You're the man - thank you.

Chris


Return to posts index


chris amosRe: Copying an alpha channel
by on May 14, 2013 at 7:13:36 am

Finished product based on the initial request of this thread!







Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]