• Adobe After Effects

  Motion script realistic bounce and overshot

  Posted by Philibert Patricot on September 18, 2014 at 8:04 pm

  Hi guys,
  Thanks to read my post.
  I am new on expressions. I am working with the website motion script.com, on the chapter realistic bounce and overshot when I write the following expression on the scale propriety:
  freq = 3;
  decay = 5;

  t = time – inPoint;
  startVal = [0,0];
  endVal = [200,200];
  dur = 0.1;
  if (t < dur){
  linear(t,0,dur,startVal,endVal);
  }else{
  amp = (endVal – startVal)/dur;
  w = freq*Math.PI*2;
  endVal + amp*(Math.sin((t-dur)*w)/Math.exp(decay*(t-dur))/w);
  }

  An error message arrive:

  After effects warning: expected:]
  error occurred on ligne 5.

  If you have some advices it ll be so kind.

  Thanks

  Roland R. kahlenberg replied 11 years, 9 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Roland R. kahlenberg

  September 20, 2014 at 11:31 pm

  Dan Ebberts, the owner of MotionScript.com, helps out a lot at the COW’s AE Expressions Forum. Further, the script works when I tried it. There could be something in your keyframes that’s causing the issue. I suggest that you include information on the property you’re animating and the version of AE you’re using.

  Cheers
  – Roland

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