• Adobe After Effects Expressions

  offset an exp

  Posted by Rod Santoyo on July 17, 2009 at 5:14 pm

  Hey there,

  I am kind of newbie at expressions on AE. I need help with this.
  Im making some animated mattes with a lot of vertical bands.

  Ive already made them to move up with the same animation of my layer number 1:

  x = thisComp.layer(index -1).transform.position[0];
  y = thisComp.layer(index -1).transform.position[1];

  [x+12,y]

  So every band has its place an move up at the same time.
  But now i need to offset the start point of each one so i can reach a “wavy” effect.

  I know this should be really easy, thnx .

  Rod

  Dan Ebberts replied 16 years, 10 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Dan Ebberts

  July 17, 2009 at 6:09 pm

  If your lead layer is layer 1, this should do what you want:

  delay = .1;
  xOffset = 12;
  p = thisComp.layer(1).transform.position.valueAtTime(time-(index-1)*delay);
  [p[0]+xOffset*(index-1),p[1]]

  Dan

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