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miga-heygenandMiguel Ángel
7b5fdb1ad2
The generated catalog pages rendered the "Source" accordion title as a
JSX expression, `<Accordion title={`name.html`}>`. Mintlify's search
indexer stringifies expression attribute nodes rather than evaluating
them, so every one of the 399 catalog pages surfaced its Source section
in search results as "[object Object]" (visible on the Scroll Feed page,
among others).
The template literal carried no escaping benefit: every title is a
single-segment `name.html` path, and a double-quoted JSX string handles
it directly. Introduce `mdxStringAttribute`, which emits a plain
`name="value"` attribute and escapes `& " < { }` as HTML character
references (MDX decodes references inside quoted attribute values, and
unlike JSON.stringify it does not rely on backslash escapes, which JSX
strings do not honour). Use it for both the Source accordion title and
the preview iframe title, and regenerate the catalog pages.
Regenerated with `npx tsx scripts/generate-catalog-pages.ts`; the only
change across the 399 pages is the one Accordion title line each.
Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
490 lines
18 KiB
Plaintext
490 lines
18 KiB
Plaintext
---
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title: "Beat Pulse Background"
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description: "An accent-derived backdrop pulses its glow intensity and saturation on a deterministic, supplied beat grid."
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---
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import { InstallCommand } from "/snippets/install-command.jsx";
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import { VariablesExplorer } from "/snippets/variables-explorer.jsx";
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## Install
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<InstallCommand command="npx hyperframes add beat-pulse-background" item="beat-pulse-background" />
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That writes one file: `compositions/components/beat-pulse-background.html`.
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<VariablesExplorer
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previewSrc="/public/catalog/components/beat-pulse-background.json"
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compositionId="beat-pulse-background"
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compositionSrc="compositions/components/beat-pulse-background.html"
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variables={[{"id":"beats","type":"string","role":"timing","label":"Beats","description":"Comma-separated beat times in seconds. Invalid entries are ignored and numeric values are clamped to the composition duration.","default":"0.5,1.0,1.5,2.0,2.5,3.0,3.5"},{"id":"accent","type":"enum","role":"style","label":"Accent","description":"Accent token family used by the pulsing glow.","default":"green","options":[{"value":"green","label":"Green"},{"value":"blue","label":"Blue"},{"value":"violet","label":"Violet"}]},{"id":"intensity","type":"enum","role":"style","label":"Intensity","description":"Strength of the glow and saturation pulse.","default":"subtle","options":[{"value":"subtle","label":"Subtle"},{"value":"club","label":"Club"}]}]}
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>
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```html beat-pulse-background.html
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<!doctype html>
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<!--
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beat-pulse-background: HyperFrames video primitive (backgrounds / rhythmic)
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Concept: a deep accent-derived backdrop pulses its glow intensity and
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saturation on a supplied beat grid. Each retained beat owns one fast attack
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and one slower decay. The pulses stay tasteful enough to carry foreground
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content without reading as a strobe.
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Variables:
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- beats (string, default "0.5,1.0,1.5,2.0,2.5,3.0,3.5"): comma-separated
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beat times in seconds. Junk and blank entries are ignored. Numeric times
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are clamped to the composition duration.
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- accent (green | blue | violet, default green): pulse color family.
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- intensity (subtle | club, default subtle): glow and saturation strength.
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Envelope: IN = 0, HOLD = the full elastic duration, OUT = 0. Beat times are
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absolute data inside HOLD, so a longer mount extends HOLD without retiming
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the supplied grid. Every pulse is constructed synchronously as one attack
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and one decay tween pair.
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Sound: none. Beats are supplied data, not audio analysis.
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Mount contract: the runtime clones only this template. #root fills the host
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box, establishes the container query basis, has no data-width or data-height,
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and registers one paused timeline under the hardcoded beat-pulse-background
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id.
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-->
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<html
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lang="en"
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data-composition-id="beat-pulse-background"
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data-composition-duration="4"
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data-composition-variables='[
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{ "id": "beats", "type": "string", "role": "timing", "label": "Beats", "description": "Comma-separated beat times in seconds. Invalid entries are ignored and numeric values are clamped to the composition duration.", "default": "0.5,1.0,1.5,2.0,2.5,3.0,3.5" },
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{ "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Accent token family used by the pulsing glow.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
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{ "id": "intensity", "type": "enum", "role": "style", "label": "Intensity", "description": "Strength of the glow and saturation pulse.", "default": "subtle", "options": [{ "value": "subtle", "label": "Subtle" }, { "value": "club", "label": "Club" }] }
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]'
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>
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<head>
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<meta charset="UTF-8" />
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<title>Beat Pulse Background</title>
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</head>
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<body>
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<template>
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<div id="root" data-composition-id="beat-pulse-background" data-duration="4" data-fps="30">
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<style>
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*,
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*::before,
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*::after {
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box-sizing: border-box;
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}
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#root {
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position: absolute;
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inset: 0;
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overflow: hidden;
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container-type: size;
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isolation: isolate;
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pointer-events: none;
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}
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.bpb-clip,
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.bpb-base,
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.bpb-pulse,
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.bpb-vignette {
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position: absolute;
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inset: 0;
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}
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.bpb-clip {
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overflow: hidden;
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}
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.bpb-base {
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background:
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radial-gradient(
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ellipse at 50% 42%,
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color-mix(in srgb, var(--bpb-accent) 10%, var(--bg, #070a12)) 0%,
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var(--bg, #070a12) 70%
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),
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var(--bg, #070a12);
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}
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.bpb-pulse {
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background:
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radial-gradient(
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ellipse at 24% 30%,
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color-mix(in srgb, var(--bpb-accent) 74%, transparent) 0%,
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color-mix(in srgb, var(--bpb-accent) 28%, transparent) 34%,
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transparent 66%
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),
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radial-gradient(
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ellipse at 76% 68%,
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color-mix(in srgb, var(--bpb-accent) 60%, var(--accent-2, #a78bfa)) 0%,
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color-mix(in srgb, var(--bpb-accent) 20%, transparent) 38%,
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transparent 70%
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);
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filter: saturate(var(--bpb-saturation, 1));
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mix-blend-mode: screen;
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opacity: 0.2;
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will-change: opacity, filter;
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}
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.bpb-vignette {
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background: radial-gradient(
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ellipse at center,
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transparent 34%,
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color-mix(in srgb, var(--bg, #000000) 58%, transparent) 100%
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);
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}
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</style>
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<div
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id="beat-pulse-background-clip"
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class="bpb-clip clip"
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data-start="0"
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data-duration="4"
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data-track-index="0"
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>
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<div class="bpb-base"></div>
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<div class="bpb-pulse"></div>
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<div class="bpb-vignette"></div>
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</div>
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<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
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<script>
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(function () {
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"use strict";
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var root = document.getElementById("root");
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var pulse = root.querySelector(".bpb-pulse");
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var vars =
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window.__hyperframes && window.__hyperframes.getVariables
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? window.__hyperframes.getVariables()
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: {};
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var accentTokens = {
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green: "var(--brand, #34d399)",
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blue: "var(--accent, #38bdf8)",
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violet: "var(--accent-2, #a78bfa)",
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};
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var intensityLevels = {
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subtle: { baseOpacity: 0.2, peakOpacity: 0.5, peakSaturation: 1.3 },
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club: { baseOpacity: 0.26, peakOpacity: 0.72, peakSaturation: 1.65 },
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};
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var accent = Object.prototype.hasOwnProperty.call(accentTokens, vars.accent)
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? vars.accent
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: "green";
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var intensity = vars.intensity === "club" ? "club" : "subtle";
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var level = intensityLevels[intensity];
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root.style.setProperty("--bpb-accent", accentTokens[accent]);
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var durationValue = Number(root.dataset.duration);
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var duration = Number.isFinite(durationValue) && durationValue > 0 ? durationValue : 4;
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var defaultBeats = "0.5,1.0,1.5,2.0,2.5,3.0,3.5";
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var beatsValue = vars.beats == null ? defaultBeats : String(vars.beats);
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var beats = beatsValue.split(",").reduce(function (result, token) {
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var trimmed = token.trim();
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if (trimmed === "") return result;
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var seconds = Number(trimmed);
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if (!Number.isFinite(seconds)) return result;
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result.push(Math.max(0, Math.min(duration, seconds)));
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return result;
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}, []);
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var ATTACK = 0.08;
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var DECAY = 0.36;
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gsap.set(pulse, { opacity: level.baseOpacity, "--bpb-saturation": 1 });
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var tl = gsap.timeline({ paused: true });
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beats.forEach(function (beat) {
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tl.to(
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pulse,
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{
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opacity: level.peakOpacity,
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"--bpb-saturation": level.peakSaturation,
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duration: ATTACK,
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ease: "expo.out",
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},
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beat,
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);
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tl.to(
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pulse,
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{
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opacity: level.baseOpacity,
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"--bpb-saturation": 1,
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duration: DECAY,
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ease: "power2.in",
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},
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beat + ATTACK,
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);
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});
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tl.seek(0);
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window.__timelines = window.__timelines || {};
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window.__timelines["beat-pulse-background"] = tl;
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})();
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</script>
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</div>
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</template>
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</body>
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</html>
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```
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</VariablesExplorer>
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## Paste it into your composition
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Open `compositions/components/beat-pulse-background.html` and copy what is inside into your own composition.
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A component has no size or duration of its own. It takes both from the composition
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you paste it into.
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## Variables
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Every one of these has a default, so the piece works untouched. Set the ones you
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want to change on the element:
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| Variable | Default | Accepts | What it does |
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| --- | --- | --- | --- |
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| `beats` | `0.5,1.0,1.5,2.0,2.5,3.0,3.5` | string | Comma-separated beat times in seconds. Invalid entries are ignored and numeric values are clamped to the composition duration. |
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| `accent` | `green` | `green`, `blue`, `violet` | Accent token family used by the pulsing glow. |
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| `intensity` | `subtle` | `subtle`, `club` | Strength of the glow and saturation pulse. |
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Set them with `data-variable-values` on the element that mounts it. These are the
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defaults, so this behaves exactly like the preview above until you change one:
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```html wrap
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<div
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data-composition-id="beat-pulse-background"
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data-composition-src="compositions/components/beat-pulse-background.html"
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data-variable-values='{"beats":"0.5,1.0,1.5,2.0,2.5,3.0,3.5","accent":"green","intensity":"subtle"}'
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></div>
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```
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## Source
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<Accordion title="beat-pulse-background.html">
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```html
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<!doctype html>
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<!--
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beat-pulse-background: HyperFrames video primitive (backgrounds / rhythmic)
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|
|
|
Concept: a deep accent-derived backdrop pulses its glow intensity and
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|
saturation on a supplied beat grid. Each retained beat owns one fast attack
|
|
and one slower decay. The pulses stay tasteful enough to carry foreground
|
|
content without reading as a strobe.
|
|
|
|
Variables:
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|
- beats (string, default "0.5,1.0,1.5,2.0,2.5,3.0,3.5"): comma-separated
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beat times in seconds. Junk and blank entries are ignored. Numeric times
|
|
are clamped to the composition duration.
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- accent (green | blue | violet, default green): pulse color family.
|
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- intensity (subtle | club, default subtle): glow and saturation strength.
|
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Envelope: IN = 0, HOLD = the full elastic duration, OUT = 0. Beat times are
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absolute data inside HOLD, so a longer mount extends HOLD without retiming
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the supplied grid. Every pulse is constructed synchronously as one attack
|
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and one decay tween pair.
|
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|
|
Sound: none. Beats are supplied data, not audio analysis.
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|
|
|
Mount contract: the runtime clones only this template. #root fills the host
|
|
box, establishes the container query basis, has no data-width or data-height,
|
|
and registers one paused timeline under the hardcoded beat-pulse-background
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id.
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-->
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<html
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lang="en"
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data-composition-id="beat-pulse-background"
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data-composition-duration="4"
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data-composition-variables='[
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{ "id": "beats", "type": "string", "role": "timing", "label": "Beats", "description": "Comma-separated beat times in seconds. Invalid entries are ignored and numeric values are clamped to the composition duration.", "default": "0.5,1.0,1.5,2.0,2.5,3.0,3.5" },
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{ "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Accent token family used by the pulsing glow.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
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{ "id": "intensity", "type": "enum", "role": "style", "label": "Intensity", "description": "Strength of the glow and saturation pulse.", "default": "subtle", "options": [{ "value": "subtle", "label": "Subtle" }, { "value": "club", "label": "Club" }] }
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]'
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>
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<head>
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<meta charset="UTF-8" />
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<title>Beat Pulse Background</title>
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</head>
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<body>
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<template>
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<div id="root" data-composition-id="beat-pulse-background" data-duration="4" data-fps="30">
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<style>
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*,
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*::before,
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*::after {
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box-sizing: border-box;
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}
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#root {
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position: absolute;
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inset: 0;
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overflow: hidden;
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container-type: size;
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isolation: isolate;
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pointer-events: none;
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}
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.bpb-clip,
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.bpb-base,
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.bpb-pulse,
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.bpb-vignette {
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position: absolute;
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inset: 0;
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}
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.bpb-clip {
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overflow: hidden;
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}
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.bpb-base {
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background:
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radial-gradient(
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ellipse at 50% 42%,
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color-mix(in srgb, var(--bpb-accent) 10%, var(--bg, #070a12)) 0%,
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var(--bg, #070a12) 70%
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),
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var(--bg, #070a12);
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}
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.bpb-pulse {
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background:
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radial-gradient(
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ellipse at 24% 30%,
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color-mix(in srgb, var(--bpb-accent) 74%, transparent) 0%,
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color-mix(in srgb, var(--bpb-accent) 28%, transparent) 34%,
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transparent 66%
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),
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radial-gradient(
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ellipse at 76% 68%,
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color-mix(in srgb, var(--bpb-accent) 60%, var(--accent-2, #a78bfa)) 0%,
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color-mix(in srgb, var(--bpb-accent) 20%, transparent) 38%,
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transparent 70%
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);
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filter: saturate(var(--bpb-saturation, 1));
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mix-blend-mode: screen;
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opacity: 0.2;
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will-change: opacity, filter;
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}
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.bpb-vignette {
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background: radial-gradient(
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ellipse at center,
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transparent 34%,
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color-mix(in srgb, var(--bg, #000000) 58%, transparent) 100%
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);
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}
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</style>
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<div
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id="beat-pulse-background-clip"
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class="bpb-clip clip"
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data-start="0"
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data-duration="4"
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data-track-index="0"
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>
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<div class="bpb-base"></div>
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<div class="bpb-pulse"></div>
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<div class="bpb-vignette"></div>
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</div>
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<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
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<script>
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(function () {
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"use strict";
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var root = document.getElementById("root");
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var pulse = root.querySelector(".bpb-pulse");
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var vars =
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window.__hyperframes && window.__hyperframes.getVariables
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? window.__hyperframes.getVariables()
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: {};
|
|
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var accentTokens = {
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green: "var(--brand, #34d399)",
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blue: "var(--accent, #38bdf8)",
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violet: "var(--accent-2, #a78bfa)",
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};
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var intensityLevels = {
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subtle: { baseOpacity: 0.2, peakOpacity: 0.5, peakSaturation: 1.3 },
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club: { baseOpacity: 0.26, peakOpacity: 0.72, peakSaturation: 1.65 },
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};
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var accent = Object.prototype.hasOwnProperty.call(accentTokens, vars.accent)
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? vars.accent
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: "green";
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var intensity = vars.intensity === "club" ? "club" : "subtle";
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var level = intensityLevels[intensity];
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root.style.setProperty("--bpb-accent", accentTokens[accent]);
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var durationValue = Number(root.dataset.duration);
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var duration = Number.isFinite(durationValue) && durationValue > 0 ? durationValue : 4;
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var defaultBeats = "0.5,1.0,1.5,2.0,2.5,3.0,3.5";
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var beatsValue = vars.beats == null ? defaultBeats : String(vars.beats);
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var beats = beatsValue.split(",").reduce(function (result, token) {
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var trimmed = token.trim();
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if (trimmed === "") return result;
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var seconds = Number(trimmed);
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if (!Number.isFinite(seconds)) return result;
|
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result.push(Math.max(0, Math.min(duration, seconds)));
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return result;
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}, []);
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var ATTACK = 0.08;
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var DECAY = 0.36;
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gsap.set(pulse, { opacity: level.baseOpacity, "--bpb-saturation": 1 });
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var tl = gsap.timeline({ paused: true });
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beats.forEach(function (beat) {
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tl.to(
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pulse,
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{
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opacity: level.peakOpacity,
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"--bpb-saturation": level.peakSaturation,
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duration: ATTACK,
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ease: "expo.out",
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},
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beat,
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);
|
|
tl.to(
|
|
pulse,
|
|
{
|
|
opacity: level.baseOpacity,
|
|
"--bpb-saturation": 1,
|
|
duration: DECAY,
|
|
ease: "power2.in",
|
|
},
|
|
beat + ATTACK,
|
|
);
|
|
});
|
|
|
|
tl.seek(0);
|
|
|
|
window.__timelines = window.__timelines || {};
|
|
window.__timelines["beat-pulse-background"] = tl;
|
|
})();
|
|
</script>
|
|
</div>
|
|
</template>
|
|
</body>
|
|
</html>
|
|
```
|
|
|
|
</Accordion>
|
|
|
|
{/* hf:generated-footer */}
|
|
|
|
Tagged `motion-primitive` `background` `beat` `pulse` `rhythmic` `reactive`.
|
|
|
|
## Related topics
|
|
|
|
- [Browse the complete Catalog](/catalog)
|
|
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
|
|
- [Build a richer composition](/go-further)
|