• Adobe After Effects Expressions

  start with a random frame of a loop sequence

  Posted by Will Gan on June 28, 2013 at 11:33 am

  I’ve got a loop animation, 2 seconds long @ 25fps, thus 50 frames total, now I need to play that loop at a random frame to make those animations more dynamic, I’ve tried this code with remapping:

  seedRandom(index,true);
  time + random(outPoint)

  unfortunately, the comp goes blank after finishing playing the rest of the frames, I tried to import that loop as png sequence, it doesn’t work either, after finishing the loop, the png sequence freezes at the last frame, what I want is to start with a random frame and keep playing the loop, so once it reaches the end, it’ll start at the beginning of the loop, how can I do this?

  seedRandom(index,true);
time + random(outPoint)

  Dan Ebberts replied 12 years, 10 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Dan Ebberts

  June 28, 2013 at 5:17 pm

  I think this will work for time remapping:

  seedRandom(index,true);
  d = source.duration;
  offset = random(d);
  (time + offset)%d

  Dan

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