• Adobe After Effects Expressions

  Conditional expression with 3 different outcomes? Possible?

  Posted by Vanessa Appleby on August 25, 2017 at 2:49 pm

  I’m building a template, and I’m trying to create an expression that has multiple conditional variables and can’t quite figure it out. I’m actually not sure if what I want to accomplish is possible.

  I have a slider that is linked to the Y position of a layer.
  I want to define the following slider values to correlate to different position values.

  slider = 2 Y position = 1390
  slider = 3 Y position = 1180
  slider = 4 Y position = 960

  A traditional if/else statement basically says: if this, then that.

  It’s 2 parts. It’s either this one thing, or this other thing.

  But what I really need is
  if 1, then this;
  if 2, then this other thing;
  if 3, then something else

  Hopefully that makes sense.

  I’m having trouble with this 3rd variable.
  I can type in 3 in the slider and get the 1180 value, and if i change it to any other number is snaps to 960, but I can’t factor in that 1390 number.
  I’ve tried using the “or” function as well and this doesn’t seem to accomplish what I want either. Suggestions? Is this even possible?

  if (thisComp.layer("CONTROL").effect("2,3,4 line position")("Slider")==3) 1180 else 960

  Dan Ebberts replied 8 years, 12 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Dan Ebberts

  August 25, 2017 at 3:48 pm

  One way would be to use an else if:

  
s = thisComp.layer("CONTROL").effect("2,3,4 line position")("Slider").value;
if (s == 2){
1390;
}else if (s == 3){
1160;
}else{
960;
}


  Dan

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