Damping
One of the most popular expressions for After Effects. It allows animate virtually any parameter with a damping effect.
amp = .04;// The higher the value, the greater the amplitude freq = 2;// The higher the value, the higher the frequency decay = 5;// The higher the value, the smaller the delay 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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