• Adobe After Effects Expressions

  Delayed Pick Whip

  Posted by Tyler Wiethorn on October 18, 2008 at 3:55 am

  I am trying to use a pick whip to connect the scale and opacity values of many similar layers to a master layer that I animate. However, I’d like to be able to offset in time when Layer 2 follows the scale and opacity changes in Layer 1.

  I’ll do my best to make sense:

  Layer 1 is a circle that scales and fades up. Layer 2 is directly adjacent and needs to perform the same animation, but 10 frames after the Layer 1 has started. Layer 3 is directly adjacent and needs to perform the same animation, but 10 frames after Layer 2 (or 20 frames after Layer 1, however you look at it). Ad nauseam for a few dozen of these things.

  Any help is appreciated!

  Tyler Wiethorn replied 17 years, 9 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  October 18, 2008 at 5:03 pm

  Just paste this into the scale property for Layer 2, select Layer 2’s scale property, Edit > Copy Expression Only, select layers 3 through (how ever many there are), Edit > Paste.

  delay = 10*thisComp.frameDuration;
  thisComp.layer(“Layer 1”).transform.scale.valueAtTime(time + (index-1)*delay)

  Then just edit the expression for opacity and do it again.

  Dan
• 

  Tyler Wiethorn

  October 19, 2008 at 6:47 pm

  Thanks Dan!

  That wasn’t exactly what I was looking for, but set me down the right track and I was able to get what I needed. It’s working the way I’d like now.

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