• Adobe After Effects Expressions

  Undefined Value Used In Expression; Require assistance with Start Time Stop If Else Statement Wiggle But Keeping Same Aspect Ratio.

  Posted by Kyle Balitz on August 27, 2019 at 2:35 am

  Hello, I am trying to figure out an expression of using a Start and Stop time If Else statement using Wiggle. But I need to maintain the aspect ratio of the wiggle.
  I tried to use the following syntax:

  timeToStart = 6;
  timeToStop = 16;
  if ((time > timeToStart) && (time < timeToStop))
  { w = wiggle(5,10);
  if (value[0]===0){[0, w[1]];}
  else{[w[0], w[0]*value[1]/value[0]];};
  }

  But get an error that say Undefined Value used in expression (could be out of range array subscript?) at the
  timeToStart = 6;

  Could anyone help assist me on the correct syntax for this so I do not get this error. This maybe have to do with the update in After Effects 2019.

  

  timeToStart = 6;
timeToStop = 16;
if ((time > timeToStart) && (time < timeToStop))
{ w = wiggle(5,10);
if (value[0]===0){[0, w[1]];}
else{[w[0], w[0]*value[1]/value[0]];};
}

  Kyle Balitz replied 6 years, 10 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  August 27, 2019 at 4:08 am

  You didn’t define what’s supposed to happen outside the start and stop zone. Try replacing the last line:

  }

  with this:

  }else value

  Dan
• 

  Kyle Balitz

  August 27, 2019 at 5:38 pm

  Wow Dan, that fixed it. Thanks for all the work you guys do here!

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