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Adding expressions to Mask Shape property's keyframes (AE7)

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Eric ChardAdding expressions to Mask Shape property's keyframes (AE7)
by on Sep 16, 2011 at 9:20:44 pm

using
loopOut(type="cycle",numKeyframes=0)
I easily looped the keyframes of a test layer's opacity.

Unfortunately, I want to loop the keyframes of a layer's Mask Shape. But when I select the property and attempt to use "Add Expression", it's greyed out (not available).

This is aggravating, 'cuz I don't want to do anything fancy with the shape per se, I just want it to loop.

Is there any way around this in AE7?

Thanks.

++++++++++++++++
"Putting the HARM in 'harmonica' since 2005."
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Roland R. KahlenbergRe: Adding expressions to Mask Shape property's keyframes (AE7)
by on Sep 17, 2011 at 1:56:33 am

The Mask SHape property doesn't allow for Expressions. Your workaround is the precomp the layer, apply Time Remapping, apply the required KFs to the Time Remapping property and then apply your loop Expression. You will want to create temporary Comp Markers prior to precomposing so that you know where to place the Time Remapping KFs.

HTH
RoRK

Intensive AE & Mocha Training in Asia.


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Todd KoprivaRe: Adding expressions to Mask Shape property's keyframes (AE7)
by on Sep 17, 2011 at 3:11:03 am

> The Mask SHape property doesn't allow for Expressions.


That's true for the version that Eric has, but not true in the current version of After Effects.

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Roland R. KahlenbergRe: Adding expressions to Mask Shape property's keyframes (AE7)
by on Sep 17, 2011 at 4:04:30 am

YUP! I think this feature was added in AE9.

Cheers
RoRK

Intensive AE & Mocha Training in Asia.


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