• Adobe After Effects Expressions

  Combining two expressions

  Posted by Mervin James on November 1, 2016 at 5:45 pm

  Hi everyone. I have two expressions which im trying to combine to work on the scale property of a shape layer. The first one is a bounce expression and the second is an expression to use a slider to control the scale of a layer (on the second keyframe). It might help to check out the original thread (https://forums.adobe.com/message/9104388#9104388) where I was given the second expression to get an better idea. If anyone can help that would be greatly appreciated.

  Bounce expression

  amp = .1;
  freq = 2.0;
  decay = 4.0;
  n = 0;
  if (numKeys > 0){
  n = nearestKey(time).index;
  if (key(n).time > time){
  n--;
  }}
  if (n == 0){ t = 0;
  }else{
  t = time - key(n).time;
  }
  if (n > 0){
  v = velocityAtTime(key(n).time - thisComp.frameDuration/10);
  value + v*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);
  }else{value}

  Expression to control scale of the layer

  x2 = thisComp.layer("Null 1").effect("Slider Control")("Slider");
x = ease(time,key(1).time,key(2).time,key(1).value[0],x2);
[x,x]

  Mervin James replied 9 years, 6 months ago 1 Member · 0 Replies
• 0 Replies

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