• Adobe After Effects Expressions

  not following any leader

  Posted by Jason W. miltt on June 10, 2009 at 10:03 am

  Hi:

  I copied the follow the leader expression from an old post here but it doesnt seem to work.

  I have a layer called “Leader” and I apply to the childs the following but it triggers an error. Maybe there is some typo or something.

  Thanks.

  inertia = 0.75;
  stiffness = 0.20;
  lagValue = calcValue(0);
  f= thisComp.frameDuration;
  will=0;
  for (t=0; t<=time; t+=f) { delta = calcValue(t) - lagValue; will = will * inertia + delta*stiffness ; lagValue +=will } lagValue; function calcValue(t) { return thisComp.layer(index-1)position.valueAtTime(t-0.1); }

  Jason W. miltt replied 16 years, 11 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  June 10, 2009 at 12:34 pm

  There’s a period missing in next-to-last line. It should look like this:

  return thisComp.layer(index-1).position.valueAtTime(t-0.1);

  Dan
• 

  Jason W. miltt

  June 10, 2009 at 6:07 pm

  thanks!

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