• Adobe After Effects Expressions

  Expression to use the time between two keyframes?

  Posted by David Cabestany on July 24, 2019 at 4:15 pm

  I’m trying to link a property in a layer to the time elapsed between two keyframes, so instead of defining the duration as .5 seconds for example, I define it as whatever the time lasts in between regardless of how I move those keyframes in the timeline in different compositions.

  Any ideas?

  Thanks.

  David Cabestany replied 7 years ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  July 24, 2019 at 7:02 pm

  Something like this, probably:

  prop = thisComp.layer(“Layer 1”).position;
  t1 = prop.key(1).time;
  t2 = prop.key(2).time;
  dur = t2 – t1;

  Dan
• 

  David Cabestany

  July 30, 2019 at 3:44 pm

  Thanks Dan, yes, I figured it almost right away, felt pretty silly afterward, I thought a more complex expression was needed.

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