• Adobe After Effects

  is there a plugin? script? for this ?

  Posted by Dogus Aslan on April 1, 2011 at 10:24 am

  i am trying to figure out a way to be able to show just one layer from a pre-composed comp. for example lets say there are 5 different hand pictures (with alphas) in a precomp, i seek a method to change the hand picture from pic 3 to pic 5 without entering the pre-comp, changing opacities constantly.

  what do you think?

  Roland R. kahlenberg replied 15 years, 5 months ago 4 Members · 3 Replies
• 3 Replies

• 

  Tim Vaughan

  April 1, 2011 at 10:50 am

  One way is to set up (within the pre-comp) the opacity to and from, then in the main comp, adjust the time remapping. For instance, in the pre-comp, frame 1 is photo 1; frame 2, photo 2, etc. Then in the main comp, with time remapping applied, just call on the associated keyframe desired.

  Hope this helps

  Tim

  Tim
• 

  Brian Charles

  April 1, 2011 at 1:11 pm

  Tim is right, you can control opacity with an expression as well.

  I’ve made an example here:

  1822_opacityandframe.aep.zip

  I put expression control sliders on a Null so the control is in one location, just keyframe the values and you’re set.
• 

  Roland R. kahlenberg

  April 1, 2011 at 3:46 pm

  I think you should put each of the layers within the existing precomp into their own respective precomps.

  HTH
  RoRK

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