• Adobe After Effects Expressions

  Make Holdtime a variable

  Posted by Tayla Frances on August 25, 2017 at 10:38 am

  Currently I am using the below code and I was wondering if just as the effect itself varies in intensity with a min and max val if I could do the same for the holdTime, so for instance it could hold anywhere between .5 sec to 5 sec.

  effect("Minimax")(2)
holdTime = 3;
minVal = 20;
maxVal = 100;

  seed = Math.floor(time/holdTime);
seedRandom(seed,true);
random(minVal,maxVal)

  Tayla Frances replied 9 years ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  August 25, 2017 at 3:58 pm

  Like this:

  
minVal = 20;
maxVal = 100;
minDur = .5;
maxDur = 5;
seedRandom(index,true);
tNext = tPrev = 0;
while (tNext <= time){
tPrev = tNext;
tNext += random(minDur,maxDur);
}
seedRandom(tPrev,true);
random(minVal,maxVal)


  Dan
• 

  Tayla Frances

  August 26, 2017 at 8:59 am

  Thanks Dan worked like a charm!

Reply to this Discussion! Login or Sign Up