[Filip Vandueren]

In your case the first line can be something like:

prop = thisComp.layer("Shape Layer 1").transform.scale;

and the check needs to be against [0] (the X-component) of the 2D scale:

if (prop.valueAtTime(t)[0]>= 100 ) {

[Filip Vandueren]

Hi Melissa,

something like this (expression for timeRemapping)

prop = thisComp.layer("0").effect("Slider Control")("Slider");
trigger = false;
for (t=time; t>=0; t-=thisComp.frameDuration) {
    if (prop.valueAtTime(t) >= 100 ) {
        trigger = true;
    } else if (trigger == true ) {
        break;
    }
}
if (t<=0) {
    0;
} else {
   valueAtTime(time-t);
}

I’m assuming the first frame is empty, animation starts at 2nd frame of precomp.

[Filip Vandueren]

Hi Myles,

I don’t have the problem with the 2nd producer not having the same effect as the 1st, providing it has the same parameters. (the 2nd one defaults to a much higher width/height value, and this significantly reduces the energy/visibility of the wave even if the Amplitude is set the same as that of a Producer with a smaller width/height)

To combine many different instances of Wave World, I would precompose, and blend mulitpe layers using Hard Light or Overlay. The combination using these blend modes is not 100% Physically accurate, but close enough for motion graphics IMHO.

[Filip Vandueren]

This is one way, don’t know it it’s the best.

t = 'apple banana \rcow dog\relephant';
words = t.match(/\S+ */g);

[Filip Vandueren]

Key the Greenscreen.

Use set mattes and invert.

Or in the latest version of after effects, track mattes with alpha / alpha inverted of your layers can all point to the same green-keyed layer.

[Filip Vandueren]

For a kind of foolproof solution:

The expression could be in an animation preset.

And you could build the precomp in such a way that it has ginormous pink letters screaming ‘don’t forget to apply animation preset “ActivateLowerThird”!’

Which disappears when the preset it applied ?

[Filip Vandueren]

Can you give a concrete example?

[Filip Vandueren]

Hi Paul,

If you want to use variables from the comp where the precomp is placed (like its name), you have to add the expression to the essential property of that instance.

So, if you use it in multiple comps, you indeed have to add the expression everywhere manually.

Hope that’s clear.

[Filip Vandueren]

Add a new Slider to your Audio Amplitude Null,

Give it this expression:

amp = effect("Both Channels")("Slider");
nki=amp.nearestKey(time).index;
accum = 0;
while (nki>0) {
    accum+=amp.key(nki).value;
    nki--;
}
accum;

Then, run “Convert Expression To Keyframes”

It might take several minutes if your music is more than a couple dozen seconds long.

A script could do it faster.

[Filip Vandueren]

Make sure Range is index-based:

Animator > Range > Advanced Settings > Based on: Index

For me, the numbers do not change when I edit the text?

But when the animator is percentage based (the default), the 80% of the characters is indeed depnding on how much text you have typed.