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Ease Expression
I’ve put together an expression to randomly scale a layer according to the value of a slider. My problem is that I can’t seem to get the scaling to ease- instead it acts like hold keyframes. Any suggestions?
holdTime = .2;
seed = Math.floor(time/holdTime);
seedRandom(seed,true);
multiplier = random(1,8);
Scaler = thisComp.layer(“Scale Shaker”).effect(“Slider Control”)(“Slider”);
Shaker = transform.scale[0]+multiplier+Scaler;if (Scaler > 0){
[Shaker,Shaker];
}else {[value[0],value[1]];} -
1 Reply
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You could ease it from one value to the next by adding some code to look ahead to the next seed, like this:
holdTime = .2;
seed = Math.floor(time/holdTime);
t = time%holdTime;
seedRandom(seed,true);
oldMultiplier = random(1,8);
seedRandom(seed+1,true);
newMultiplier = random(1,8);
multiplier = ease(t,0,holdTime,oldMultiplier,newMultiplier);
Scaler = thisComp.layer(“Scale Shaker”).effect(“Slider Control”)(“Slider”);
Shaker = transform.scale[0]+multiplier+Scaler;if (Scaler > 0){
[Shaker,Shaker];
}else {
[value[0],value[1]];
}You could probably accomplish something very similar by using wiggle().
Dan
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