Monthly Archive: June 2015
AE Bounce and Overshoot Expressions
Just came across these. Why didn’t I find them sooner?
Keyframe Overshoot Expression:
freq = 3;
decay = 5;
n = 0;
if (numKeys > 0){
n = nearestKey(time).index;
if (key(n).time > time) n--;
}
if (n > 0){
t = time - key(n).time;
amp = velocityAtTime(key(n).time - .001);
w = freq*Math.PI*2;
value + amp*(Math.sin(t*w)/Math.exp(decay*t)/w);
}else {
value
}
Add a little bounceback…
