• Adobe After Effects Expressions

  Combining Expressions

  Posted by Adam Levine on February 28, 2015 at 6:39 pm

  I’ve a layer with position key frames and I used for them Ease and Wizz script. But like in the picture I also want to link that first two keyframes to “INPOINT” Marker and last two keyframes to “OUTPOINT” marker..
  

  I have a custom expression for link key frames to that markers… But that expression won’t work with Ease and Wizz script…

  I need to combined them for one expression…

  here is my custom expression

  L = thisComp.layer(“layer 01”);
  if ((L.marker.numKeys > 1 ) && (numKeys > 3)){
  dIn = key(2).time – key(1).time;
  dOut = key(4).time – key(3).time;
  tIn = L.marker.key(1).time;
  tOut = L.marker.key(2).time;
  if (time < L.marker.key(2).time)
  linear(time,tIn-dIn,tIn,key(1).value,key(2).value)
  else
  linear(time,tOut,tOut+dOut,key(3).value,key(4).value);
  }else
  value

  Ease and Wizz script

  // Ease and Wizz 2.0.3 : inOutExpo : All keyframes
  // Ian Haigh (https://ianhaigh.com/easeandwizz/)
  // Last built: 2012-10-11T16:37:31+11:00

  // some defaults
  var p = 0.8; // period for elastic
  var a = 50; // amplitude for elastic
  var s = 1.70158; // overshoot amount for “back”

  function easeandwizz_inOutExpo(t, b, c, d) {
  if (t==0) return b;
  if (t==d) return b+c;
  if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t – 1)) + b;
  return c/2 * (-Math.pow(2, -10 * –t) + 2) + b;
  }

  function easeAndWizz() {
  var n = 0;
  if (numKeys > 0) {
  n = nearestKey(time).index;
  if (key(n).time > time) { n– }
  }

  try {
  var key1 = key(n);
  var key2 = key(n+1);
  } catch(e) {
  return null;
  }

  // determine how many dimensions the keyframes need
  var dim = 1; // It’s gotta have at least ONE dimension
  try {
  key(1)[1];
  dim = 2;
  key(1)[2];
  dim = 3;
  } catch(e) {}

  t = time – key1.time;
  d = key2.time – key1.time;

  sX = key1[0];
  eX = key2[0] – key1[0];

  if (dim >= 2) {
  sY = key1[1];
  eY = key2[1] – key1[1];

  if (dim >= 3) {
  sZ = key1[2];
  eZ = key2[2] – key1[2];
  }
  }

  if ((time < key1.time) || (time > key2.time)) {
  return value;
  } else {
  val1 = easeandwizz_inOutExpo(t, sX, eX, d, a, p, s);
  switch (dim) {
  case 1:
  return val1;
  break;
  case 2:
  val2 = easeandwizz_inOutExpo(t, sY, eY, d, a, p, s);
  return [val1, val2];
  break;
  case 3:
  val2 = easeandwizz_inOutExpo(t, sY, eY, d, a, p, s);
  val3 = easeandwizz_inOutExpo(t, sZ, eZ, d, a, p, s);
  return [val1, val2, val3];
  break;
  default:
  return null;
  }
  }
  }

  (easeAndWizz() || value);

  can ayone help me… thank you very much…

  Adam Levine replied 11 years, 5 months ago 1 Member · 0 Replies
• 0 Replies

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