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https://github.com/heygen-com/hyperframes.git
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Miao YangandClaude Opus 4.8
a34d3dba4d
Replace bgm-to-video, bgm-to-video-new, bgm-to-video-refactor, and the standalone beat-sync/montage skills with a single music-to-video skill. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
133 lines
3.9 KiB
HTML
133 lines
3.9 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>flash_cut</title>
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<script src="../assets/gsap.min.js"></script>
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<style>
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:root {
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--hg-violet: #7c3aed;
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--hg-violet-2: #a855f7;
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--hg-bg: #0a0a0f;
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--hg-fg: #f5f5fa;
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--hg-dim: #6b6b78;
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}
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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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background: var(--hg-bg);
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font-family: "Inter", system-ui, sans-serif;
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color: var(--hg-fg);
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-webkit-font-smoothing: antialiased;
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}
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#scene {
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position: absolute;
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inset: 0;
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width: 1920px;
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height: 1080px;
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}
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.stage {
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position: absolute;
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inset: 0;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.word {
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position: absolute;
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font-weight: 900;
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font-size: 260px;
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letter-spacing: -0.04em;
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line-height: 0.95;
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white-space: nowrap;
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color: var(--hg-fg);
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will-change: opacity;
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}
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.accent {
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position: absolute;
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bottom: 360px;
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width: 220px;
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height: 14px;
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border-radius: 999px;
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background: var(--hg-violet);
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will-change: background, transform;
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}
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.flash {
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position: absolute;
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inset: 0;
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background: #ffffff;
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opacity: 0;
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pointer-events: none;
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will-change: opacity;
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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="root"
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data-composition-id="main"
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data-start="0"
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data-duration="1.8"
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data-width="1920"
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data-height="1080"
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>
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<div id="scene" class="clip" data-start="0" data-duration="1.8" data-track-index="1">
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<div class="stage">
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<div class="accent" id="accent"></div>
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<div class="word" id="w0">READY</div>
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<div class="word" id="w1">IMPACT</div>
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<div class="word" id="w2">DONE</div>
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</div>
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<div class="flash" id="flash"></div>
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</div>
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</div>
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<script>
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window.__timelines = window.__timelines || {};
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const tl = gsap.timeline({ paused: true });
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// Initial state: first word visible, others hidden, accent violet.
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tl.set("#w0", { opacity: 1 }, 0);
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tl.set("#w1", { opacity: 0 }, 0);
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tl.set("#w2", { opacity: 0 }, 0);
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tl.set("#accent", { backgroundColor: "#7c3aed", scaleX: 1 }, 0);
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tl.set("#flash", { opacity: 0 }, 0);
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// Two hits; during each white frame, swap underlying word + accent colour.
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const hits = [
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{ t: 0.5, from: "#w0", to: "#w1", color: "#a855f7", scaleX: 1.45 },
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{ t: 1.2, from: "#w1", to: "#w2", color: "#f5f5fa", scaleX: 0.7 },
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];
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hits.forEach((h) => {
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// Instant full-frame white flash on the hit.
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tl.set("#flash", { opacity: 1 }, h.t);
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// While white (~2 frames at 30fps), swap the revealed state.
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tl.set(h.from, { opacity: 0 }, h.t + 0.03);
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tl.set(h.to, { opacity: 1 }, h.t + 0.03);
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tl.set("#accent", { backgroundColor: h.color, scaleX: h.scaleX }, h.t + 0.03);
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// Snap the flash back out within ~3 frames.
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tl.set("#flash", { opacity: 0 }, h.t + 0.06);
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});
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// Graceful loop: dip back to white at the very end and restore the start
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// state so the cycle re-enters cleanly on the next pass.
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tl.set("#flash", { opacity: 1 }, 1.74);
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tl.set("#w2", { opacity: 0 }, 1.77);
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tl.set("#w0", { opacity: 1 }, 1.77);
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tl.set("#accent", { backgroundColor: "#7c3aed", scaleX: 1 }, 1.77);
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tl.set("#flash", { opacity: 0 }, 1.8);
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window.__timelines["main"] = tl;
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</script>
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</body>
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</html>
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