• Adobe After Effects Expressions

  Random frame with time controlled

  Posted by Ilya Sire on November 2, 2016 at 11:38 am

  Hi,

  I found this thread https://forums.creativecow.net/thread/227/30852#30862
  An expression to pick randomize frame and it works perfectly, it randomize every frame, but how can i change it to randomize frame every 5 frames?

  Please help
  ilya

  numFrames = 132;
a = [];
seedRandom(index,true);
for (i = 0; i < numFrames; i++)a.push(i);
for (i = 0; i < numFrames; i++){
idx = i + Math.floor(random(a.length - i));
temp = a[i];
a[i] = a[idx];
a[idx] = temp;
}
idx = timeToFrames(time)%numFrames;
framesToTime(a[idx])

  Ilya Sire replied 9 years, 6 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  November 2, 2016 at 5:14 pm

  Try changing this line:

  idx = timeToFrames(time)%numFrames;

  to this:

  idx = Math.floor(timeToFrames(time)/5)%numFrames;

  Dan
• 

  Ilya Sire

  November 3, 2016 at 10:48 am

  wow, that simple.
  Thank you so much.

  ilya

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