Motion vocabulary · Subtitles and captions
Word pop
Words pop in one by one on a spring; the word being spoken sits on a brand pill.
Live loop · 6 s · 1920×1080 at 24 fps
Parameters
| Parameter | Type | What it does |
|---|---|---|
| lines (required) | [{text, start, end, words?}] | caption lines in ms of the shot; optional words [{text, start, end}] |
| kicker | string | lowerThird: a short label above the text |
| size | px | type size (default per variant, 48-72) |
| maxChars | numberDefault: 38 / 16 CJK | wrap into two balanced lines past this |
| bottom | pxDefault: 120 | distance from the bottom edge (inside the title-safe area) |
| ease | {"<move>": ease} | retune any named move (see the entry's moves): a preset name ("out-expo"), a cubic-bezier [x1, y1, x2, y2], {spring: [hz, damping]} or {trapezoid: [accel, decel]}. A wrong move name or curve throws, it never falls back. A move measured from a reference clip (the replica workbench's measure/*.json, frame-keyed) becomes a curve without conversion: MV.fitEase(doc, "x", {from: 133, to: 142}) or `motion-fit <file> --measure x --from 133 --to 142 --ease` |
| brand | hexDefault: #6B5BFF | the site's brand colour; the component derives its accent (>= 3:1 on the stage), surfaces and ink from it |
| stage | "dark" | "light"Default: "dark" | the stage the component sits on |
| display | font stemDefault: "Inter-Bold" | headline stem; name it in the call so the runtime loads it |
| body | font stemDefault: "Inter-Regular" | UI / body stem; name it in the call so the runtime loads it |
| start_ms | msDefault: 300 | when the component starts, ms into the shot |
| background | booleanDefault: false | draw the stage background (off: transparent over the shot's own stage) |
| place | {x, y, w, h, z?} | the component's place in the shot's layout: it fits its 1920x1080 composition into this stage rect (centred, aspect kept); z orders components front to back. Default: the whole stage |
Moves and their curves
Every move is eased on its own. Retune one with ease: { "<move>": <curve> }, a curve name or cubic-bezier handles.
| Move | Curve | What it does |
|---|---|---|
| line.in | out-cubic | the line rising 16 px and fading in just before it is spoken |
| line.out | in-quad | the line fading out after it ends |
| word.pop | {"spring":[2.38,0.78]} | each word popping up from 0.55x as it is spoken, a small overshoot |
This demo
| variant | "wordPop" |
|---|---|
| lines | [{"text":"Every screen tells the story","start":300,"end":2700},{"text":"One idea per shot","start":3000,"end":5200}] |
| brand | #E0563B |
| stage | dark |
<script src="/vendor/motion-vocab.js"></script>
MV.bind("s3", MV.captions(el, {"variant":"wordPop","lines":[{"text":"Every screen tells the story","start":300,"end":2700},{"text":"One idea per shot","start":3000,"end":5200}],"brand":"#E0563B","stage":"dark","display":"Inter-Bold","body":"Inter-Regular"}));When to use it in a launch film
Short punchy narration in the first seconds, social-feed style.
Why it works
Each word is an event, which keeps attention in the hook; too tiring for a whole film.
Do not combine with
- use for more than about 8 s of a film
- a kinetic title on screen at the same time
Job in the film
Natural length
1.5–8.0 s
More subtitles and captions
Lower-third bar
A brand bar grows, a plate slides out of it with the text; the plate resizes between lines and collapses at the end.
Karaoke highlight
The whole line is shown dim and each word fills with the brand colour as it is spoken.
Two-line safe-area captions
Classic captions: at most two balanced lines on a soft plate, inside the 10 % title-safe area, short fades.