kinetic typography with radial wave movement

[Julian Chojnacki]

Hi Oleg,

add 2 sliders to your layer called Anim and Delay and try the following code on an expression selector either based on characters or words:

const ti = textIndex - 1;
const { basedOn } = thisProperty.propertyGroup(1);
const anim = effect("Anim")("Slider");
const delay = effect("Delay")("Slider").value;
const lines = text.sourceText.value.split(/\n|\r|\3/);
let lineIndex = itemsInLine = totalCount = 0;
for (let line of lines) {
    const count = basedOn == 3 ? line.split(" ").length : line.length;
    totalCount += count;
    if (totalCount > ti) {
        itemsInLine = count;
        break;
    }
    lineIndex++;
}
const colIndex = ti - (totalCount - itemsInLine);
const dx = colIndex - (itemsInLine - 1) / 2;
const dy = lineIndex - (lines.length - 1) / 2;
const center = Math.hypot(dx, dy);
anim.valueAtTime(time - framesToTime(delay) * center);
// anim.valueAtTime((time - framesToTime(delay) * center) % (anim.key(anim.numKeys).time));

Now animate the slider and tweak your delay as you wish 🙂

You can easily create a looping radial wave animation using loopOut() on the Anim slider or with the code I commented out in the last line.

Just watch out when using paragraph/boxText: this won’t work unless you add your linebreaks manually.

[Oleg Friesen]

Nice! Its work! Radius was still interesting for my task. Here are a few adapted lines that take this into account

const radius = effect(“Radius”)(“Slider”).value;

and

anim.valueAtTime((time – framesToTime(delay) * center / radius) % (anim.key(anim.numKeys).time));

[Oleg Friesen]

could you still make the source of the wave motion from the position of a null object?

[Julian Chojnacki]

Sure, is a second (invisible) text layer for the calculations ok?

The radius is a great addition btw, I totally forgot about that!
You could even go fancy and apply separate radii to dx & dy directly in the center variable.

[Julian Chojnacki]

If you only need a fixed layout like a grid, a one-layer solution would definitely render much faster