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imse-ty/inertial-bounce-after-effects-expression.js Secret

Last active June 18, 2022 18:08
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Inertial bounce After Effects expression
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inertial-bounce-after-effects-expression.js
amp = .1;
freq = 2.0;
decay = 2.0;
n = 0;
if (numKeys > 0) {
n = nearestKey(time).index;
if (key(n).time > time) {
n--;
}
}
if (n == 0) {
t = 0;
} else {
t = time - key(n).time;
}
if (n > 0) {
v = velocityAtTime(key(n).time - thisComp.frameDuration/10);
value + v*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);
} else {
value
}
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