After Effect Expression

After Effect Expression 

After Effect Expression 

Most of the time we need to use after effect expression to make our animation more smother. 

Check out the most propeller after effect expression down below. 

Blink

Blink

blinkSpeed=15;

n= Math.sin(time*blinkSpeed);

if(n<0) 0 else 100;

Magic Expression:

Magic Expression:

freq = 1;

amp = 110;

loopTime = 3;

t = time % loopTime;

wiggle1 = wiggle(freq, amp, 1, 0.5, t);

wiggle2 = wiggle(freq, amp, 1, 0.5, t - loopTime);

linear(t, 0, loopTime, wiggle1, wiggle2)

Path Loop:

Path Loop Expression

try{

timeStart = thisProperty.key(1).time;

duration = thisProperty.key(thisProperty.numKeys).time-timeStart;

pingPong = false; //change to true value if you want to loop animationn back & forth 

quant=Math.floor((time-timeStart)/duration);

  if(quant<0) quant = 0

  if(quant%2 == 1 && pingPong == true){   t = 2*timeStart+ (quant+1)*duration - time;

}

else{

  t = time-quant*duration;

}

}

catch(err){

  t = time;

}

thisProperty.valueAtTime(t)

Position Bounce: 

Position Bounce

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 && t < 1){

v = velocityAtTime(key(n).time - thisComp.frameDuration/10);

value + v*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);

}else{value}

Scale Bounce:

Scale Bounce

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 && t <1 ){

v = velocityAtTime(key(n).time -thisComp.frameDuration/10);

amp = .05;

freq = 4.0;

decay = 8.0;

value + v*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);

}else{

value;

}

Wiggle Random:

freq = 1;

amp = 110;

loopTime = 3;

t = time % loopTime;

wiggle1 = wiggle(freq, amp, 1, 0.5, t);

wiggle2 = wiggle(freq, amp, 1, 0.5, t - loopTime);

linear(t, 0, loopTime, wiggle1, wiggle2)

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