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Forums Adobe After Effects Expressions Scaling with expression and then parent/child

  • Scaling with expression and then parent/child

  • Andry Hamida

    March 27, 2020 at 4:37 am

    I want to create a scale animation like a comparison plandet video, it scale smaller as the new object bigger apear (follow parent), here the case

    here is the link:
    https://youtu.be/U_P9XKTPnxA

    A size = 100%

    A size = 60% (because it 40% smaller than the b)
    B size = 100%

    A size = 60% (parent to B, appear is 30% because it follow B scale down)
    B size = 50%
    C size = 100%

    A size = 60% (parent to B, appear scale is 27,5% because it follow B scale down)
    B size = 50% (parent to C, appear scale is 45% because it follow B scale down)
    C size = 90%
    D size = 100%

    and so on

    it works pretty well, i just copy the code from forum,
    but as it scale down, it follow the parent anchor point

    first, i want it to scale down on its on position
    second, can i time it to start at the spesific second, like, B scale down at 6, C scacle down at 9, etc.
    i already try action, start time, begin, etc doesnt work well

    Thank you

    startScale = 100; // percent of Scale at start
    endScale = 5/10*100; // percent of Scale at end 5 is the size of the shape, 10 is the size of the parent

    scaleUpTime = 3; // time to scale up from inPoint in seconds

    s = linear(time,inPoint,inPoint+scaleUpTime,startScale,endScale);
    [s,s]

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