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Random time remap
Hi there, I’ve been looking for an expression to make this work but still couldn’t find any that suits my needs.
I have a 3 frames comp and I want the three frames to change randomly.
But the expressions I tried flickered a lot, and I’d like to make the frames still for at least 10-20 frames.When I try something like
It flicks like crazy and the weird is that one of the flickering frames is a blank one, I don’t get why that happens.
For an insight of the project, it’s a title made of magazine cut offs letters.
I have 3 cut offs for each letter. So I made a 3 frames comp for each letter intending to change it randomly with time remapping.
So the expression should change randomly between these 3 frames, holding each one for at least 10-20 frames.Could anybody help me out here? I know very little of expressions, so basically I tried a lot of copy and paste from old topics and google researches, none of it works… 🙁
Thanks!!
fr = 12; // frame rate;
numFrames = 8;
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); -
20 Replies
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Actually, this 3 years old expression I found works perfectly, but, I don’t know why, one of the frames is BLANK!
Why’s that for god sake? :`(numFrames = 5;
minDur = 15;
maxDur = 30;f = timeToFrames();
f0 = 0;
seedRandom(index,true);
while (f0 <= f){
f0 += Math.floor(random(minDur,maxDur+1));
}
seedRandom(f0,true);
framesToTime(Math.floor(random(numFrames))); -
Try this one:
frameDur = 15;
f = timeToFrames(time);
seg = Math.floor(f/frameDur);
seedRandom(seg+1113,true);
rf = Math.floor(random(3));
framesToTime(rf)Dan
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It works dude!!!! Thanks!!!!
Would it be too much to ask you how to make a slider or something to turn it on and off? So I can choose when I want the randomness to start and end?
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That’s a little vague, but here’s a version with variables for start and stop times (tStart & tStop) which you could tie to sliders:
tStart = 1;
tStop = 3;
if (time > tStart && time < tStop){
t = time - tStart;
frameDur = 15;
f = timeToFrames(t);
seg = Math.floor(f/frameDur);
seedRandom(seg+1113,true);
rf = Math.floor(random(3));
framesToTime(rf)
}else 0
Dan
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Thanks a lot dude, I just had the opportunity to test it today.
How do I exactly do it?
I tried to paste the expression on both Slider and Time Remap, but I’m confused on how to relate them. -
Add a couple of sliders, and change these lines:
tStart = 1;
tStop = 3;to something like this:
tStart = effect(“Slider Control”)(“Slider”);
tStop = effect(“Slider Control 2”)(“Slider”);Dan
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Nothing happens 🙁
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Did you set the sliders to valid times?
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Yea, I tried 1, 3, or 0.01, 0.03, I dragged the slide all the way but nothing happened… :/
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Does it work without the sliders (just pasting the original expression into time remapping)?
If not, I probably didn’t understand what you’re trying to do.
Dan
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