• Adobe After Effects Expressions

  Creating a Customer Transition

  Posted by Adam Nelson on November 13, 2014 at 10:45 pm

  I’m attempting to make a custom transition that is driven by a null object that moves from the top-right of the comp to the bottom left of the comp. In order to make the transition as user-friendly as possible for my client, I’ve been trying to come up with an expression that links the diagonal movement of the null object to a slider control so my client can simply slide the value of the control from 0 to 100 to animate the effect. I’d also like to make the expression versatile enough that I can re-purpose it onto a comp of any size, which I believe means using a thisComp.height and thisComp.width to extract the starting/ending values of the null.

  Any help would be greatly appreciated!

  Adam Nelson replied 11 years, 6 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  November 13, 2014 at 11:26 pm

  Try this:

  s = effect(“Slider Control”)(“Slider”);
  linear(s,0,100,[thisComp.width,0],[0,thisComp.height])

  Dan
• 

  Adam Nelson

  November 13, 2014 at 11:31 pm

  Fantastic! It works like a charm!

  And, I believe I see what I was doing wrong this whole time.

  Many thanks,

  Adam

Reply to this Discussion! Login or Sign Up