• Adobe After Effects Expressions

  increasing/decreasing Z-position based on distance to a null

  Posted by James Henry on June 5, 2020 at 4:07 pm

  Hi all, trying to build an automatically scaling carousel type effect.

  I have a null object (‘Center’) and I’m basically scaling images underneath depending on their position to this null. Here’s my expression so far:

  
sMax = thisComp.layer("Center").effect("Scale")("Slider");
r = thisComp.layer("Center").effect("Radius")("Slider");

  a = thisComp.layer("Center").transform.position[0];
  b=position[0];
  l = length(Abbott);

  s = ease(l, 0, r, sMax, 52);

  [s,s]


  r is a slider control that controls the radius of the null object, and sMax is the max scaling size of the image.

  I was hoping I could add another variable f = ease(l, 0, r, -100, 100) and then simply end my code with [s,s,f] but this is having no effect…

  I was also wondering if there was a way to parent multiple layers to one and have the position of these layers all animate together? When I do this it stops the code on the linked layers working.

  Any help would be appreciated!

  sMax = thisComp.layer("Center").effect("Scale")("Slider");
r = thisComp.layer("Center").effect("Radius")("Slider");

  a = thisComp.layer("Center").transform.position[0];
  b=position[0];
  l = length(Abbott);

  s = ease(l, 0, r, sMax, 52);

  [s,s]

  James Henry replied 6 years, 3 months ago 1 Member · 0 Replies
• 0 Replies

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