EXPRESSIONS ◢

Inertial Bounce

7/13/2017

Inertial Bounce is like making your moves "rubbery." Layers will overextend, then settle into place on position and rotation keyframes. I honestly don't remember where I found this expression, but you can find it in a bunch of different places now.

amp = .05;
freq = 4.0;
decay = 2.0;
// Play with these values to get the correct bounce you want

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);
// This is where the AMP FREQ and DECAY were originally
value + v*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);
}else{
value;
}

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CONNECT 2D POSITION POINT TO 3D POSITION POINT

7/12/2017

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Yet another awesome thing. How to link a 2D point to a 3D point (like a light or a 3D null) and it's hella simple. Find the tutorial I got this from Video Copilot. You know who they are... and if you don't, PLEASE check out their large library of tutorials.

1- Alt + Click the 2D position value
2- Pickwhip the 3D layer then add ".toComp([0,0,0]);"

thisComp.layer("3DLAYERNAMEHERE").toComp([0,0,0]);

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Loop animation using loop

7/11/2017

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The loop expression takes keyed animation and does something immediately after.
It'll either PING PONG, (go back and forth with the animation)
CYCLE, (which loops the animation from the beginning over and over again)
or CONTINUE (which keeps the value of the animation going in that direction)

loopOut("one of the 3 options"),
loopIn("one of the 3 options"),
loopInDuration("one of the 3 options"),
loopOutDuration("one of the 3 options")
commands and their "ping pong", "cycle" and "continue" modes.

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EXPRESSIONS

Inertial Bounce

CONNECT 2D POSITION POINT TO 3D POSITION POINT

Loop animation using loop

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