Answered
Bounce Expression error on Path morphing?
Hello
Would like to know if I'm doint anything wrong, because I'm trying to make my shape bounce when morphed, but I get an error message.
How could I solve this issue?
Thank you!
Dan EbbertsCorrect answer
Community Expert
Oct 13, 2021 8:06 PM UTC
This path overshoot expression might be helpful in some situations. It assumes that the number of points doesn't change and it doesn't apply any bounce to the tangents.
freq = 3;
decay = 5;
val = value;
if (numKeys > 0){
n = nearestKey(time).index;
if (time < key(n).time) n--;
if (n > 0){
path = thisProperty;
pNow = path.points(time);
p1 = path.points(key(n).time);
p0 = path.points(key(n).time - thisComp.frameDuration);
p = [];
dur = thisComp.frameDuration;
t = time - key(n).time;
for (i = 0; i < p1.length; i++){
amp = (p1[i] - p0[i])/dur;
w = freq*Math.PI*2;
p.push(pNow[i] + amp*(Math.sin((t)*w)/Math.exp(decay*(t))/w));
}
val = createPath(p, path.inTangents(), path.outTangents(), path.isClosed())
}
}
val
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