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Activity Forums Adobe After Effects Expressions Randomly wobble each letter to rest

  • Randomly wobble each letter to rest

    Posted by Dennis Cheung on May 9, 2023 at 8:09 pm


    I have a text layer in After Effects. I’m trying to have each letter randomly appear, drop down, wobble, then come to rest. Basically, as each character drops down, reacts to physics a little bit by wobbling, then rest.

    I can perform the random appearance (opacity), and the drop (position), but the wobble to stop part (spring action on rotation) is the part I’m not getting.

    Thank you for your time,


    Pete Burges replied 11 months, 3 weeks ago 3 Members · 4 Replies
  • 4 Replies
  • Dan Ebberts

    May 9, 2023 at 10:15 pm

    How are you animating the opacity and position?

  • Dennis Cheung

    May 11, 2023 at 11:07 pm

    Yes, just randomly turning the letters on and dropping them down on the baseline.

  • Dan Ebberts

    May 12, 2023 at 8:53 pm

    I think in order to craft the rotation expression you’d have to know how to detect the triggering event (which I guess might be the end of the position animation), but to do that, we’d have to know exactly how you’re accomplishing that animation.

  • Pete Burges

    June 8, 2023 at 1:34 am

    Dennis, you might want to download DUIK Bassel, which is a free animation
    toolkit for After Effects. It includes just the kind of expression you’re
    describing where you can apply spring or elastic motion to your
    keyframes (with the touch of a button) and adjust the settling and bouncing time.

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