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Random frames without repeat
I’ve been searching around for a few hours to get this done.
I have a 12fps composition containing 132 unique frames. I want the composition to play the frames in random order, without repeating a frame.I found multiple scripts, of which the one from this thread came very close: https://forums.adobe.com/message/4577715
fr = 12; // frame rate;
numFrames = 132;
seedRandom(index,true);
seg = Math.floor(time*fr);
f = Math.floor(random(numFrames));
for (i = 0; i < seg; i++)
f = (f + Math.floor(random(1,numFrames)))%numFrames;
framesToTime(f);
Only the thing is, I see frames being repeated a few times. I tried messing around a bit, but I can’t seem to get it right. What do I add to prevent this? (and where in the code)
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5 Replies
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Do you mean that you want each fame to display once, and only once in the complete sequence of frames, or do you just need the same frame to not show twice in a row?
Dan
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I only want to display each frames once, and only once in the complete sequence of frames 🙂
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I think this is close to what you’re looking for:
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])
Dan
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It seems to work, I did not notice a repeated frame yet!
Thank you, much appreciated! -
Hi Dan Ebberts,
How to make this code always start with 0 frame and then next random?
Sire
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