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Offset keyframes randomly
Hi!
I have a comp with 256 different precomps (made another thread about this project a few days ago).
All of these comps needs to rotate on the y-axis to 180 degrees. The thing is I don’t want them all to rotate at the same time, it is supposed to look random. What I have done is to animate the rotation on all of the precomps at the same time, and what I’m looking for is an expression that I could add that would offset these animations randomly by about 10 frames. I cannot offset the comps them self in time, since they all contains an animation that needs to be sync.I think this should be quite simple, just a short expression on the rotation value?
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5 Replies
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Try this:
maxOffset = 10; // frames
seedRandom(index,true);
offset = framesToTime(random(maxOffset));
valueAtTime(time-offset)Dan
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Awesome, works like a charm!
Thanks again Dan!
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Ancient post here but I just found it and wondered how you would make this behavior offset a loopOut expression?
Adding it at the end just overrides the offset expression.
maxOffset = 10; // frames
seedRandom(index,true);
offset = framesToTime(random(maxOffset));
valueAtTime(time-offset);
loopOut(“cycle”);Hope you see this, and thanks!
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this one works very well, but if I add a loop function this one stops to works.
How can I fix it?
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It doesn’t work to add loopOut() to the end of another expression. You have to create your own loop functionality–something like this:
maxOffset = 10; // frames
seedRandom(index,true);
offset = framesToTime(random(maxOffset));
t = time - offset;
if (t > key(numKeys).time){
t = (t - key(numKeys).time)%(key(numKeys).time - key(1).time);
valueAtTime(key(1).time + t);
}else{
valueAtTime(time - offset);
}
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