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Activity Forums Adobe After Effects How to edit scale across multiple keyframes

  • How to edit scale across multiple keyframes

    Posted by Spencer Tycksen on January 27, 2012 at 4:54 pm

    I am needing to resize an object that I got tied to a motion tracker on a separate layer. I was hoping to simply highlight all the scale keyframes, and adjust them down 20%, but that only adjusts the keyframe at the CTI. Is there a way to change the scale of many individual key frames (which vary in scale) and edit them down a certain percentage?

    Ryan Peplinski replied 12 years, 5 months ago 4 Members · 5 Replies
  • 5 Replies
  • Walter Soyka

    January 27, 2012 at 5:29 pm

    [Spencer Tycksen] ” I was hoping to simply highlight all the scale keyframes, and adjust them down 20%, but that only adjusts the keyframe at the CTI. Is there a way to change the scale of many individual key frames (which vary in scale) and edit them down a certain percentage?”

    You could create a null object, parent your layer to the null, and scale down the null.

    Walter Soyka
    Principal & Designer at Keen Live
    Motion Graphics, Widescreen Events, Presentation Design, and Consulting
    RenderBreak Blog – What I’m thinking when my workstation’s thinking
    Creative Cow Forum Host: Live & Stage Events

  • Walter Soyka

    January 27, 2012 at 5:31 pm

    Alternately, you could use an expression.

    Alt-Click the Scale stopwatch, and copy and paste the following:

    value * 0.8

    This will adjust all the scale values to 80% of their keyframed value. Adjust that 0.8 number as necessary.

    Walter Soyka
    Principal & Designer at Keen Live
    Motion Graphics, Widescreen Events, Presentation Design, and Consulting
    RenderBreak Blog – What I’m thinking when my workstation’s thinking
    Creative Cow Forum Host: Live & Stage Events

  • Spencer Tycksen

    January 27, 2012 at 6:43 pm

    Thank you Walter. I appreciate you helping out a noob. Great ideas, they both worked. =]

  • Roland R. kahlenberg

    January 28, 2012 at 3:23 am

    Walter’s given you a couple of good options. However, you should be able to change all the KF values if you –
    (1) select all the KFs
    (2) park the CTI on any one of the KFs
    (3) scrub the value downwards by 20% or 80% of its original value

    HTH
    RoRK

    Intensive AE & Mocha Training in Singapore and Malaysia
    Adobe ACE/ACI (version 7) & Imagineer Systems Inc Approved Mocha Trainer

  • Ryan Peplinski

    December 12, 2013 at 2:36 pm

    This is easy…

    1. Select all keyframes
    2. Layer>Time>”Time Stretch”
    3. Enter Stretch Factor % ie:If you want to scale to twice as long = 200%
    4. Hit OK
    5. Done!

    razzi

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