• Adobe After Effects Expressions

  Error in my expression

  Posted by Alberto Fontana on March 7, 2012 at 11:45 am

  Good morning

  I’m new to expressions in AE, and i’m having some problems…

  I want a wiggle to start exactly at time 4:19 and increase over time.
  So i typed into the property:

  if( time > 4.19 ){
  t=(time-5)*20;
  wiggle(5,t);
  }

  But it doesn’t work…when i exit the expression editor, it seems working, (the triangle is grey and the values are red), but when i move around the “current time indicator” in the timeline, the expression crashes and the triangle with the ! becomes yellow.
  Even if i replace 4.19 (float) with an integer value, like 4, the expression doesn’t work.

  Can anybody help me?
  Thanks!

  Alberto Fontana replied 14 years, 5 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  March 7, 2012 at 3:47 pm

  The problem is that you’re not telling the expression what to do if the time is less than 4.19. Try it this way:

  if( time > 4.19 ){
  t=(time-5)*20;
  wiggle(5,t);
  }else{
  value
  }

  Dan
• 

  Alberto Fontana

  March 7, 2012 at 6:18 pm

  Wow, that worked.

  I always programmed in C and Java and i never had to type “else” every time i type “if”. That’s new for me.

  Thanks!

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