• Adobe After Effects Expressions

  Weird behaviour of animation created from expression using markers

  Posted by Sergio Pol on October 17, 2021 at 7:15 pm

  Hello, I have a comp with another comp inside. Let’s name them “Comp” and “Precomp”. Inside Precomp I have a set of two or three layers of animated text. In the Comp, the Precomp has “In” and “Out” markers that trigger the animations inside. Also, I created a scaling animation using the markers on the Precomp layer so that there’s constant movement on that layer from in to out no matter the length of it. The weird part is that the last animated layer inside precomp (visualized in comp) jumps (seems to scale or move abruptly) at the end, I guess it does it right before the “Out” marker. It’s obviously related to the animation created based on the markers so I also tried creating it by using a null to which all text layers are children, and linking that null to the markers on Precomp inside Comp, unfortunately with the same result. I hope I was clear enough, seems confusing even to me but can’t figure a better way to explain.

  Here’s the expression I used on the scale on the Precomp layer:

  inMrkr = thisLayer.marker.key(“In”).time;

  outMrkr = thisLayer.marker.key(“Out”).time;

  t = time;

  s = easeIn(t, inMrkr, outMrkr+1.5, 100, 120);

  [s,s]

  Thanks in advance to anyone who can give me a hand here.

  
  

  Sergio Pol replied 4 years, 7 months ago 1 Member · 1 Reply
• 1 Reply

• 

  Sergio Pol

  October 17, 2021 at 7:56 pm

  Never mind, I just realized it’s not the secondary animation but the markers that are causing it. Still don’t know why since there are some frames between the end of the animation and the start of the “out” action its subsequent marker.

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