• Adobe After Effects Expressions

  simple syntax question

  Posted by Jonas Espinoza on March 27, 2008 at 7:16 pm

  so i am becoming semi-friendly with arrays, and slowly better at syntax

  right now i am just perplexed on something simple

  i am not sure how the syntax works when adding say a wiggle on top of the x variable. do i put it below in the array, or is there a way to tack it on to the x = line. Ive played around for a while now, and im just not getting it.

  x= comp(“master”).layer(“Controller”).effect(“width”)(“Slider”)*2*(index-1);
  y= position [1];

  [x, y]

  Dan Ebberts replied 18 years, 3 months ago 2 Members · 4 Replies
• 4 Replies

• 

  Dan Ebberts

  March 27, 2008 at 11:50 pm

  You’ll need to do something like this:

  freq = 2;
  amp = 25;
  x= comp(“master”).layer(“Controller”).effect(“width”)(“Slider”)*2*(index-1);
  y= position [1];

  w = wiggle(freq, amp) – value;

  [x, y] + [w[0],0]

  Dan
• 

  Jonas Espinoza

  March 28, 2008 at 2:26 am

  ah
  makes perfect sense, learning the way to speak this script is the key

  thanks so much

  you are such a HUGELY generous contributer to this community
• 

  Jonas Espinoza

  March 28, 2008 at 4:36 pm

  ”
  w = wiggle(freq, amp) – value;

  [x, y] + [w[0],0] ”

  i’m not clear about the “- value” part
• 

  Dan Ebberts

  March 28, 2008 at 4:56 pm

  The result from wiggle() includes the value of the property itself. To isolate just the wiggle part you need to subtact out the pre-expression value. Hope that makes sense. 🙂

  Dan

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