• Adobe After Effects

  Simple (I think) AE Expressions Question

  Posted by Adelany on February 2, 2006 at 2:41 am

  If I have a layer and set that layer’s Position property to [transform.position.valueAtTime(time – 1)[0] + 5, 0] I would think that if the layer started at 0,0 it would move to the right at intervals of 5. But this doesn’t happen. It doesn’t move at all.

  I’ve also noticed that if I have my layer move using keyframes first THEN I can affect its movement in this way but I would prefer not to do it this way.

  Can someone please explain how this works? I would really appreciate it because right now I am in a real bind.
  Thanks!
  Alex

  Mylenium replied 20 years, 7 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Mylenium

  February 2, 2006 at 6:03 pm

  Nope, wrong logic. Zero multiplied with zero gives zero (because your time is nowhere referenced and does not change you always operate with zero or undefined values). I’m not quite sure why you are using valueAtTime at all. Your result could be easily achieve by simply multiplying a fixed value e.g.

  Math.round(time)*5

  for a stepped movement every second.

  Mylenium

  [Pour Myl

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