• Adobe After Effects Expressions

  How do i change position every “x” seconds i want

  Posted by Bar Avraham on June 24, 2017 at 9:14 pm

  Hey i have a layer that i want to change his position.
  I want this to change every “x” seconds i choose.

  I mean like:

  position=[200,500]
  wait “4” seconds
  now change to [200,600]
  wait “3” seconds
  now change to [200,790]
  …….

  Please help. Thank you very much ????

  Scott Mcgee replied 9 years, 2 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Scott Mcgee

  June 26, 2017 at 7:46 pm

  There’s probably an easier way to do this but if you know when you want it to move and for how long this is a messy way to do it

  valuea = [200, 500];
  valueb = [200,600];
  valuec = [200,790];
  valued = [500,790];

  inPointa = 0;
  outPointa = 2;
  inPointb = 4;
  outPointb = 6;
  inPointc = 8;
  outPointc = 10;

  if (time < outPointa){
  ease(time,inPointa,outPointa, valuea, valueb)
  } else if (time < outPointb){
  ease(time,inPointb,outPointb, valueb, valuec)
  } else if (time < outPointc){
  ease(time,inPointc,outPointc, valuec, valued)}

  If the transistion is always going to be the same you could probably reduce it to this

  
  valuea = [200, 500];
  valueb = [200,600];
  valuec = [200,900];
  valued = [500,900];

  inPointa = 0;
  inPointb = 4;
  inPointc = 8;

  if (time < inPointa + 2){
  ease(time,inPointa,inPointa +2, valuea, valueb)
  } else if (time < inPointb + 2){
  ease(time,inPointb,inPointb +2, valueb, valuec)
  } else if (time < inPointc +2){
  ease(time,inPointc,inPointc + 2, valuec, valued)}

  But there’s still probably a way to reduce it further or to write it in general, but I’m not that good.

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