mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-09-04 16:42:27 +00:00
James Russo
b0f754a7f7
## What Three reusable effect components for the registry, each with a snippet HTML and companion `demo.html`: | Component | Description | |-----------|-------------| | `grain-overlay` | Animated film grain texture overlay (CSS keyframes, extracted from warm-grain example) | | `shimmer-sweep` | CSS gradient light sweep across text/elements, driven by GSAP custom property animation | | `grid-pixelate-wipe` | Grid-based dissolve transition — screen breaks into 16×9 squares that scale in/out with stagger | Establishes the `demo.html` convention in `CONTRIBUTING.md`. ## Why Phase B of the catalog plan — seed the first components in the registry. Components are effect snippets that get merged into existing compositions (vs. blocks which are standalone sub-compositions). ## How - **grain-overlay**: Extracted the grain texture pattern from the warm-grain example. Uses a 200% oversized tiled texture with `steps(1)` keyframe animation for the random-noise effect. - **shimmer-sweep**: Original implementation using CSS custom properties (`--shimmer-pos`) animated by GSAP. The gradient mask uses `mix-blend-mode: overlay` for a natural light sweep. Auto-injects `.shimmer-mask` elements into `.shimmer-sweep-target` wrappers. - **grid-pixelate-wipe**: Creates a 16×9 CSS Grid of cells, animated with GSAP stagger. Users drive `.grid-cell` `scale` directly in their timeline. Simplify review addressed: scoped `.grain-texture` under `#grain-overlay`, scoped `.grid-cell` under `#grid-pixelate-overlay`, removed `window.gridPixelateIn/Out` globals in favor of direct GSAP patterns. Each component ships a `demo.html` — a standalone composition that previews the effect and doubles as a fixture for the CI preview pipeline (PR 8). ## Test plan - [x] `hyperframes add grain-overlay` installs to `compositions/components/grain-overlay.html` - [x] `hyperframes add shimmer-sweep` installs to `compositions/components/shimmer-sweep.html` - [x] `hyperframes add grid-pixelate-wipe` installs to `compositions/components/grid-pixelate-wipe.html` - [x] All three return correct `--json` output with snippet and type info - [x] `registry-item.json` files validate against the JSON Schema - [x] `demo.html` files are self-contained with correct `data-composition-id` and `window.__timelines` registration - [x] `oxfmt --check` and `oxlint` pass on all files - [x] `CONTRIBUTING.md` documents the `demo.html` convention and registry item checklist
180 lines
4.7 KiB
HTML
180 lines
4.7 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=1920, height=1080" />
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<title>Grid Pixelate Wipe — Demo</title>
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<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
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<style>
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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html,
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body {
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margin: 0;
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width: 1920px;
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height: 1080px;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<div
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id="demo"
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data-composition-id="grid-pixelate-wipe-demo"
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data-width="1920"
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data-height="1080"
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data-duration="8"
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>
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<!-- Scene A -->
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<div
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id="scene-a"
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style="
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position: absolute;
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width: 1920px;
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height: 1080px;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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display: flex;
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justify-content: center;
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align-items: center;
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font-family: "Inter", sans-serif;
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"
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>
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<div style="text-align: center; color: white">
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<div style="font-size: 80px; font-weight: 800">Scene A</div>
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<div style="font-size: 32px; margin-top: 20px; opacity: 0.7">
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The grid wipe dissolves this away
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</div>
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</div>
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</div>
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<!-- Scene B (hidden initially) -->
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<div
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id="scene-b"
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style="
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position: absolute;
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width: 1920px;
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height: 1080px;
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background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
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display: flex;
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justify-content: center;
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align-items: center;
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font-family: "Inter", sans-serif;
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opacity: 0;
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"
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>
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<div style="text-align: center; color: white">
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<div style="font-size: 80px; font-weight: 800">Scene B</div>
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<div style="font-size: 32px; margin-top: 20px; opacity: 0.7">Revealed from the grid</div>
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</div>
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</div>
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<!-- Grid Pixelate Wipe overlay -->
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<div
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id="grid-pixelate-overlay"
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style="
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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pointer-events: none;
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z-index: 999;
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display: grid;
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"
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></div>
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<style>
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#grid-pixelate-overlay {
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--grid-color: black;
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}
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#grid-pixelate-overlay .grid-cell {
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background: var(--grid-color);
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transform: scale(0);
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transform-origin: center center;
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}
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</style>
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<script>
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(function () {
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const COLS = 16;
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const ROWS = 9;
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const overlay = document.getElementById("grid-pixelate-overlay");
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overlay.style.gridTemplateColumns = `repeat(${COLS}, 1fr)`;
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overlay.style.gridTemplateRows = `repeat(${ROWS}, 1fr)`;
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for (let i = 0; i < COLS * ROWS; i++) {
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const cell = document.createElement("div");
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cell.className = "grid-cell";
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overlay.appendChild(cell);
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}
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const tl = gsap.timeline({ paused: true });
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// Scene A visible for 2 seconds
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// Grid covers screen (transition out of A)
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tl.to(
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".grid-cell",
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{
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scale: 1,
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duration: 0.6,
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stagger: { amount: 0.6, from: "center" },
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ease: "power2.inOut",
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},
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2.0,
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);
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// Swap scenes at midpoint
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tl.set("#scene-a", { opacity: 0 }, 3.0);
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tl.set("#scene-b", { opacity: 1 }, 3.0);
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// Grid reveals scene B
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tl.to(
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".grid-cell",
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{
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scale: 0,
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duration: 0.6,
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stagger: { amount: 0.6, from: "edges" },
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ease: "power2.inOut",
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},
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3.0,
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);
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// Second transition: back to A using random pattern
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tl.to(
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".grid-cell",
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{
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scale: 1,
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duration: 0.5,
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stagger: { amount: 0.5, from: "random" },
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ease: "power2.inOut",
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},
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5.5,
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);
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tl.set("#scene-b", { opacity: 0 }, 6.3);
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tl.set("#scene-a", { opacity: 1 }, 6.3);
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tl.to(
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".grid-cell",
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{
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scale: 0,
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duration: 0.5,
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stagger: { amount: 0.5, from: "random" },
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ease: "power2.inOut",
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},
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6.3,
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);
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window.__timelines = window.__timelines || {};
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window.__timelines["grid-pixelate-wipe-demo"] = tl;
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})();
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</script>
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</div>
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</body>
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</html>
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