Kinetic Text Expressions

The expressions simply check the velocity of your animations. If you move an objects motion ends abruptly (ie: you didn't easeIn @ 100%) the physics will kick in automatically.

After Effects CS4
Design/Objects
Expressions

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It's all just that stranger than fiction crap. The paragraph uses text animations (although it's easy and i could have made it a plugin, it sucks because it's harder to get words to just appear as opposed to fading in and out with the swings). Anyways, not for paragraphs and the proof is in the video.

This is code for bouncy position movement.
Just paste it in the position expression field, in this case it will affect x, y and z movements:

//applyTo: position
// Inertial Easing (elastically reacts to the speed at which it was animated)
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);
amp = .02;
freq = 3.0;
decay = 5.0;
value + v*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);
}else{
value;
}

And this is tweaked a bit for rotations… paste it in the x, y or z rotation. It will only affect the ones you place it in:

//applyTo: rotation
// Inertial Easing (elastically reacts to the speed at which it was animated)
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);
amp = 8;
freq = 2.0;
decay = 3.0;
value + (v/100)*amp*Math.sin(freq*t*2*Math.PI)/Math.exp(decay*t);
}else{
value;
}

Keywords

swing, bounce, expression, text, fx,

(Min. Version: After Effects CS4, Category: Design/Objects, Type: Expressions)

posted by MicGyver on Jul 30, 2011

3D swing-in pendulum text

A preset to drop a text in from the capline in a swinging motion and then swing back and forth at the bottom as it loses 'momentum.' Like int the opener from the movie 'Stranger than fiction'

After Effects CS3
Text-FX
Presets (ffx)

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posted by MicGyver on Nov 16, 2009

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Auto Layer Flip

Apply this expression to your 'Scale' attribute and it'll automatically 'flip' the layer in 3d space when the camera goes behind it. This way, your text will never be seen from behind, for instance.

After Effects 6
Camera
Expressions

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posted by MicGyver on Sep 15, 2008

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Formatting a number with commas

Formatting a number with commas

After Effects 6
Text-FX
Expressions

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posted by MicGyver on Sep 15, 2008

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Kinetic Text Expressions

Keywords

Related topics:

3D swing-in pendulum text

Auto Layer Flip

Formatting a number with commas