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Activity Forums Adobe After Effects Keyframing the beginning and end of a mask?

  • Keyframing the beginning and end of a mask?

    Posted by Gabi Bucataru on May 22, 2015 at 2:55 pm

    Hi Gang!

    So I need a mask on this layer only for a few frames somewhere in the middle but not anything before and after that region.
    What’s a good way to do this? I see that the none/add/substract dropdown option is not keyframable.

    thanks!
    gabi

    Daniel Waldron replied 11 years, 2 months ago 3 Members · 2 Replies
  • 2 Replies
  • John Cuevas

    May 22, 2015 at 4:37 pm

    You could create a keyframe 1 frame before and one frame after your mask, where it is the size of screen.

    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.

  • Daniel Waldron

    May 22, 2015 at 9:00 pm

    You could also split the layer immediately before and after where you want the mask so your masked layer is its own very short layer. Command+Shift+D (or its PC equivalent) will split it at the spot of the playhead.

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