• Adobe After Effects Expressions

  Ranomize The End

  Posted by Josh Holdens on June 10, 2014 at 1:40 am

  I’ve preformed a search and if this has already been addressed, it would be greatly appreciated if I could be pointed in the direction. What I’m attempting to do is randomize the end of a given animation. For instance if I have opacity 0-100 when I duplicate the layer, the duplicate could be 90, 98, 73, etc…. I thought i could do this with an if statement, but the way that I implemented it failed so after some thought I gave the linear expression which got me close but I would still like to maintain the ability to keyframe the parameter.
  So is it possible, am I on the right track, where did I go wrong?

  Linear expression:
linear(time,1,2,100,(75,95)

  if/else statement:
  x = transform.opacity;

  if (x == 100){

  seedRandom(45,true)
random(25,85)
}else{
value
}

  Josh Holdens replied 11 years, 11 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  June 10, 2014 at 3:19 am

  You might be looking for something like this:

  
if (numKeys > 1){
seedRandom(index,true);
v2 = random(25,95);
linear(time,key(1).time,key(2).time,key(1).value,v2);
}else
value


  Dan
• 

  Josh Holdens

  June 10, 2014 at 12:26 pm

  Genius! superb, this is so awesome and works great.

Reply to this Discussion! Login or Sign Up