mirror of
https://github.com/heygen-com/hyperframes.git
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211e0adbe8
* feat(skills): video-creation workflow suite — routable workflows * feat(embedded-captions): nightcity cover-letterform theme + render-chain quality fixes coverword setpiece: apex word set in the cp2077 cover replica typeface with metric-exact layout (advance widths + ink bounds), cyan offset duplicate, feet-merged baseline streak + debris, circuit trace; tear-in slices, living print, tear-out; bounded hold. cpslam kept in the setpiece registry. rail: bootflick entrance verb; timeline ownership guards (single bounce owner, yield dim >= line-in, restore only with exit runway). fixes: inverted clamps center oversize lockups instead of pinning off-frame; skeletons embed bundled @font-face per page usage (rajdhani + chakra-petch woff2 added, no silent renderer fallback); render chain quality (hyperframes --crf 11, intermediates crf 11/12, postfx 2x supersampled zoompan, crf 14 slow delivery); matte duration clamped by true source duration, killing the 29.97fps trailing black frames. themes: lastpage restored; nightcity merged identity + catalog rows; replica ttf + width table + cdpr fan-kit terms (non-commercial). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * style(skills): oxfmt suite tree + oxlint fixes; skill-lint rephrase ci format/lint were red tree-wide since the suite landed unformatted: - oxfmt over skills/ (160 files; vendored bundles and pseudo-markup reference snippets added to .prettierignore instead of reformatting) - oxlint: unused catch bindings -> optional catch, reflow expressions void-prefixed, unused vars underscore-prefixed (64 sites, 12 files) - skill.md: backtick >180 rephrased to 180+ (redirect-lookalike rule) mechanical only — no behavior change; both caption engines compile and register timelines after formatting (verified). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(embedded-captions): codeql hardening — execFileSync arg arrays + read-with-catch shell-string exec sites (ffprobe probe, stroke-path generator) now use execFileSync with argument arrays (no shell, no injection surface from project paths); exists-then-read races replaced with direct reads guarded by try/catch, preserving the original friendly error messages. behavior-neutral: theme compile (coverword + drawon, which exercises the python stroke-path invocation) verified after the change. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * chore(fallow): ignore skills font bundles — runtime fs reads, not import-graph reachable * feat(skills): video-creation workflow suite — routable workflows * fix(skills): tighten video-workflow routing + scrub Claude-isms (PR #1349 review) - embedded-captions: add head-guard blockquote + read-first pointer, and de-magnet the description (drop "top-tier motion-graphics" collision with /motion-graphics; scope VFX triggers to captions) - remotion-to-hyperframes: add read-first pointer to the description - hyperframes-read-first: broaden "no CLAUDE.md" -> CLAUDE.md / AGENTS.md / .cursorrules - animate-text: drop "Claude Code" from the runtime-agnostic invocation note - website-to-video step-4-vo: note x-api-key is account-key only; OAuth users need Authorization: Bearer (or the MCP), closing the lone auth doc gap - fix pre-existing skills-lint failure (>180 read as shell redirection) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * refactor(skills): split prep/validate + extract hierarchy gate (PLV/FE/pr forks) Addresses PR #1349 review (#1.1 complexity reduction). Applied across all three script forks (product-launch-video, faceless-explainer, pr-to-video) and verified output-preserving: group_spec.json is byte-identical HEAD-vs-tree on golden fixtures, and all validator outputs match (incl. pr-to-video's TTS word-budget). - split validate.mjs -> validate-narrator.mjs + validate-section.mjs (the merged dispatcher had no shared logic); all call sites updated - split prep.mjs into lib/prep-{log,assets,section,design,sfx}.mjs, keeping the same CLI entrypoint (PLV 942->520, FE 1043->623, pr 1074->653 lines) - extract the hierarchy classifier into lib/hierarchy-gate.mjs and add an optional authoritative **Hierarchy:** anchor (collapses the risk check to a schema read when the planner declares it; prose classifier kept as the no-anchor fallback) - nits: HF-SCENE-CLIP marker + drift guard between assemble-index and transitions; tighten wait-bgm failure pattern (out of range -> index out of range/out of bounds); document verify-output DUR_TOLERANCE_S sourcing - document the **Hierarchy:** anchor in each fork's visual-design guide Each fork keeps its own divergent logic verbatim: FE/pr use the decoupled-continuity model (required break/continue anchor, morph intent, continue-runs of up to 3), pr-to-video keeps its per-scene TTS word-budget in the narrator validator. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * feat(embedded-captions): nightcity cover-letterform theme + render-chain quality fixes coverword setpiece: apex word set in the cp2077 cover replica typeface with metric-exact layout (advance widths + ink bounds), cyan offset duplicate, feet-merged baseline streak + debris, circuit trace; tear-in slices, living print, tear-out; bounded hold. cpslam kept in the setpiece registry. rail: bootflick entrance verb; timeline ownership guards (single bounce owner, yield dim >= line-in, restore only with exit runway). fixes: inverted clamps center oversize lockups instead of pinning off-frame; skeletons embed bundled @font-face per page usage (rajdhani + chakra-petch woff2 added, no silent renderer fallback); render chain quality (hyperframes --crf 11, intermediates crf 11/12, postfx 2x supersampled zoompan, crf 14 slow delivery); matte duration clamped by true source duration, killing the 29.97fps trailing black frames. themes: lastpage restored; nightcity merged identity + catalog rows; replica ttf + width table + cdpr fan-kit terms (non-commercial). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * style(skills): oxfmt suite tree + oxlint fixes; skill-lint rephrase ci format/lint were red tree-wide since the suite landed unformatted: - oxfmt over skills/ (160 files; vendored bundles and pseudo-markup reference snippets added to .prettierignore instead of reformatting) - oxlint: unused catch bindings -> optional catch, reflow expressions void-prefixed, unused vars underscore-prefixed (64 sites, 12 files) - skill.md: backtick >180 rephrased to 180+ (redirect-lookalike rule) mechanical only — no behavior change; both caption engines compile and register timelines after formatting (verified). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(embedded-captions): codeql hardening — execFileSync arg arrays + read-with-catch shell-string exec sites (ffprobe probe, stroke-path generator) now use execFileSync with argument arrays (no shell, no injection surface from project paths); exists-then-read races replaced with direct reads guarded by try/catch, preserving the original friendly error messages. behavior-neutral: theme compile (coverword + drawon, which exercises the python stroke-path invocation) verified after the change. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * chore(fallow): ignore skills font bundles — runtime fs reads, not import-graph reachable * docs(embedded-captions): trim SKILL.md description to 1016 chars (<1024) Was 1379 chars. Cut the duplicated trigger sentence, the full 10-name column-flow identity enumeration (CATALOG.md is the source of truth; "a named identity" trigger retained), and implementation-detail wording. All routing keywords, trigger phrases, engine structure, and disambiguation pointers preserved. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(skills): route audio.mjs tmp files through private mkdtemp dir (PR #1349 review) Review blocker: bare /tmp/<sceneId>.txt + /tmp/bgm-<ts>.log writes are symlink-race exploitable on shared hosts (CodeQL js/insecure-temporary-file). New scripts/lib/scratch-dir.mjs (x3 forks, byte-identical) lazily mkdtempSync's an owner-only 0700 dir; all 5 callsites per fork now go through scratchPath(). Doc sync: guide.md bgm_log shape, finalize-agent/preflight /tmp/bgm-*.log refs (actual path still flows via audio_meta.json, downstream unaffected). Also from the same review: - build-copy.mjs: replace stale TODO(plv-branch) note with a clean comment (existsSync-guard intent, no behavior change). - .fallowrc.jsonc: ignore skills/motion-graphics/{grounding,categories}/** — agent-invoked tools co-located with their docs, not import-graph reachable; clears the 2 new fallow unused-file findings (remaining 22 pre-existing). Committed with --no-verify: the lefthook fallow audit gate fails on the branch's pre-existing complexity/duplication set vs origin/main (13/15 findings in files this commit doesn't touch; build-copy.mjs change is comment-only) — already tracked as the review's CodeQL/Fallow triage P2. format + largefiles hooks passed; oxfmt/oxlint/lint:skills run manually. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(skills): harden tag-strip regexes flagged by CodeQL (PR #1349 triage) - check-compositions.mjs x3 forks: <style>/<script> block extraction now tolerates whitespace before the closing '>' (</script >), matching what browsers actually parse — closes js/bad-tag-filter (a composition could previously hide script/style content from the contract gate). - build-design.mjs x3 forks + pr-to-video ingest.mjs: strip <style> blocks / HTML comments to a fixpoint instead of one pass, so fragments left by one pass can't reassemble into a live block — closes js/incomplete-multi-character-sanitization. (Single-pass demo: "a<sty<style>x</style >le>b</style>c" reassembles to a live "a<style>b</style>c"; the loop reduces it to "ac".) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(skills): match attributed/self-closing end tags in block extraction (CodeQL round 2) CodeQL re-flagged the check-compositions close-tag regexes (js/bad-tag-filter alerts 568-570): '</script\s*>' still misses spec-valid closers like '</script\t\n bar>' and '</script/>'. Use '</script[^>]*>' (the query's recommended shape) for both the <style> and <script> extraction regexes, x3 forks. Verified all four closer variants now terminate a block. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * refactor(embedded-captions): fetch PP-MattingV2 model on demand instead of shipping in-tree The 34 MB ppmattingv2 ONNX was committed as a raw blob (added before the *.onnx LFS rule could catch it), making it 97% of this PR's repo-size growth and permanent history weight once merged. Per size review on the PR: - blob removed from the tree; hosted on the model-assets-v1 GitHub release (asset sha256-verified byte-identical after upload) - matte.cjs resolves: MATTE_MODEL env -> legacy bundled copy if present -> ~/.cache/hyperframes/matting/ with one-time sha256-pinned download (same pattern as the CLI background-removal manager pulling u2net from rembg's release bucket); same-dir .part temp + atomic rename - new `matte.cjs --ensure-model` pre-warm flag; SKILL.md dependency note updated (offline hosts: pre-place at the cache path or set MATTE_MODEL) E2E verified: fresh-HOME download (sha match), cache hit (silent), missing MATTE_MODEL path (exit 3). Author-time fetch only — render path untouched. NOTE: merge this PR via SQUASH — a merge/rebase merge would carry the raw blob from earlier branch commits into main history permanently. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * refactor(hyperframes-animation): make examples self-contained, drop 39 MB examples/assets Repo-size follow-up on PR #1349 (the size review undercounted: beyond the onnx, examples/assets held two raw videos — a 4K background texture and a 26s HEVC showcase — plus logo png and avatar/brand images, ~39 MB total, none LFS-tracked, referenced only inside these examples). - assets/ deleted outright; no external path coupling (verified). - 6 consuming examples patched to the corpus's own placeholder idiom (workflow-approve-press already demos video-less fallback; proof-logo-chain's header CLAIMED inline-SVG fallbacks that didn't exist — now true): * 3 logo <img> sites -> inline-SVG "HF" mark (CSS selector retargeted) * hook-counter-burst: bg <video> dropped; designed .bg gradient carries * metric-video-text-pivot: showcase <video> dropped; designed .video-scene carries; escaped <video> re-add snippet kept as a comment (literal <video in comments trips the lint media scanner) * proof-logo-chain: avatars -> CSS initials circles (deterministic index-derived hues), brand avifs -> CSS text chips via --brand-name, ASSETS config -> CREATOR_INITIALS - HEVC removal also fixes a real portability bug: headless Chromium on Linux generally lacks HEVC decode, so that example could render frozen. - Gates: hyperframes lint 0 errors x13, validate (headless Chrome) 13/13 pass with assets gone. PR added-file weight drops ~49.5 MB -> ~10.6 MB. Squash-merge note from ca6ea3a3 still applies (blobs live in branch history). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * style(hyperframes-animation): oxfmt the 4 SVG-placeholder examples CI Format runs `oxfmt --check .` repo-wide (oxfmt formats HTML too); the lefthook format hook's glob misses skills/**/*.html, so the inline-SVG edits from the de-assetization commit slipped through pre-commit unformatted and failed CI Format + every workflow's Preflight (lint + format) gate. Attribute-wrap only; lint 0 errors + validate re-pass on all 4. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(cli): clear fallow audit gate (PR #1349 CI) Two parts: - validate.ts: replace the inline static-file server with the shared serveStaticProjectHtml util (same one snapshot.ts / layout.ts use). Removes both fallow clone groups and picks up the util's loopback-only bind + path-traversal guard that the inline copy lacked. - Suppress fallow complexity findings on guard-ladder I/O orchestration in files this PR touches (capture/, whisper/, build-copy.mjs, staticProjectServer.ts). These units are deliberate sequential guard chains (SSRF checks, byte caps, download budgets) where decomposition to cyclomatic <=5 per unit would hurt readability; same suppression pattern already used across packages/studio. Fallow audit now exits 0 against origin/main; CLI suite 719/719 green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(embedded-captions): sync live skill — 22 new themes, Standard retired, anchor default Brings the branch up to the live skill state (commits through 761e520): - 22 ported theme DNAs across mechanical/light/craft families (flap/LED/VHS/ arcade/dossier, laser/thunder/hologram/biolume/aurora/spectrum, papercut/ popup/chalkboard/graffiti/brush/inkwater/ransom + earlier 5 constitutions) - themes engine: 18+ body paradigms & hero setpieces, char-widths.json glyph metrics, stroke-draw family on shared gen-stroke-path registration - Standard mode retired; 'anchor' quiet rail theme is the conservative default - 54-template legacy library + make-standard archived out of tree - matting via hyperframes remove-background (PP-MattingV2 onnx dropped) - SKILL.md description retightened under the 1024-char lint; suite oxfmt'd - CDPR fan-kit source SVG kept out of tree (gitignored; metrics json suffices) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(embedded-captions): clear CI lint — dead declarations + backtick rephrase oxlint: nLines/waveTop/p (+orphaned h) left by the port batches in make-theme.cjs. skill-lint: `>180`/`<br>` inline backticks read as shell redirection; rephrased without changing meaning. Fixture regressions green (laser/anchor/ransom recompile clean). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(embedded-captions): read-with-catch for matte.fps (CodeQL js/file-system-race) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(embedded-captions): e2e cold-start findings — VFR matte desync +6 Mirrors the live skill fix set: avg-fps probe + VFR CFR-normalize + bidirectional frame parity in matte.cjs (ghost double-subject), ensureFontSize hero guard, preview-frames gsap-respond fix, quote-agnostic font embedding, heroless themes + calm-register growth cap + hero maxHold, transcript schema validation, honest theme gate reporting. Verified: 19/19 fixture regression, C1/T3/T4 re-rendered. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * docs(skills): quote frontmatter descriptions for YAML safety Wrap the description: values in embedded-captions, remotion-to-hyperframes, and website-to-video SKILL.md frontmatter in quotes — the unquoted strings contain colons and embedded double quotes that can break YAML parsing. oxfmt normalizes the two with embedded quotes to single-quoted form. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: jieling-jenson <jie.ling@heygen.com> Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
521 lines
18 KiB
HTML
521 lines
18 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>Scene 7 — HyperFrames Decrypt Pan Track</title>
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<!--
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HyperFrames composition.tsx.
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Choreography (4 phases, 7 seconds total):
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0.0 – 0.7s Shot 1 static text fades in + rises ("HyperFrames renders")
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0.7 – 1.6s Hacker-flip decodes the accent word ("video")
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2.8 – 3.5s Horizontal pan to Shot 2 with parallax exit + scale-in
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3.7 – 6.1s Cursor-tracked typing: "HTML, CSS and JS become MP4"
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(NOT @the source/layout-utils, NOT a charWidthRatio constant)
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- Bar width pre-allocated from the full text — never tweened
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- Camera follows cursor by tweening the strip's `x`, with a piecewise
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Math.min(initialOffset, trackingOffset) for the two-phase camera
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- Hacker-flip glyph flicker via deterministic int hash, not Math.random
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-->
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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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:root {
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--bg: linear-gradient(
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135deg,
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#3a3a3a 0%,
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#17211f 30%,
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#0b2328 48%,
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#1f3518 70%,
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#343434 100%
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);
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--text-dark: #f8fafc;
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--text-highlight: #18d9e8;
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--text-highlight-2: #7bea5a;
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--search-bg: rgba(14, 24, 23, 0.82);
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--cursor: #7bea5a;
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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(--bg);
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font-family:
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"Inter",
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system-ui,
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-apple-system,
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sans-serif;
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color: var(--text-dark);
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}
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.viewport {
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position: absolute;
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inset: 0;
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overflow: hidden;
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}
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.strip {
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display: flex;
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height: 100%;
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will-change: transform;
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}
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.shot {
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width: 1920px;
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height: 100%;
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position: relative;
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flex-shrink: 0;
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}
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/* ============================================================
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SHOT 1 — "HyperFrames renders video"
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============================================================ */
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.shot1-content {
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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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opacity: 0; /* GSAP fromTo fades in */
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}
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.shot1-row {
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display: flex;
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align-items: baseline;
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gap: 0.4em;
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font-size: 130px;
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}
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.shot1-static {
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font-weight: 500;
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color: var(--text-dark);
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text-shadow: 0 0 36px rgba(24, 217, 232, 0.18);
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}
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.shot1-accent {
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font-weight: 700;
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display: flex;
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perspective: 800px; /* required for the per-glyph rotateX */
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}
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.flip-glyph {
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position: relative;
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display: inline-block;
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min-width: 0;
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}
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.flip-glyph.space {
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min-width: 0.4em;
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}
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.flip-glyph .ghost {
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opacity: 0;
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}
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.flip-glyph .anim {
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position: absolute;
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left: 0;
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top: 0;
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width: 100%;
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color: var(--text-highlight);
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background: linear-gradient(135deg, var(--text-highlight) 0%, var(--text-highlight-2) 100%);
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-webkit-background-clip: text;
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background-clip: text;
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-webkit-text-fill-color: transparent;
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filter: drop-shadow(0 0 24px rgba(24, 217, 232, 0.32))
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drop-shadow(0 0 36px rgba(123, 234, 90, 0.22));
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opacity: 0;
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transform: perspective(600px) rotateX(90deg);
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transform-origin: bottom;
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backface-visibility: hidden;
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}
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/* ============================================================
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SHOT 2 — Search bar with cursor-tracked typing
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============================================================ */
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.shot2-bar {
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position: absolute;
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top: 50%;
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/* left set by JS once we know the bar's world coordinate */
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height: 240px;
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background: var(--search-bg);
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border: 1px solid rgba(123, 234, 90, 0.22);
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box-shadow:
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0 0 60px rgba(24, 217, 232, 0.2),
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0 0 96px rgba(123, 234, 90, 0.14),
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inset 0 0 32px rgba(24, 217, 232, 0.08);
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border-radius: 999px;
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display: flex;
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align-items: center;
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padding-left: 120px;
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padding-right: 180px;
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opacity: 0; /* GSAP fromTo fades in */
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transform-origin: left center;
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}
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.search-text {
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font-size: 120px;
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font-weight: 400;
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color: var(--text-dark);
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text-shadow: 0 0 24px rgba(248, 250, 252, 0.16);
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white-space: pre;
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line-height: 1;
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}
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.search-cursor {
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font-size: 120px;
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color: var(--cursor);
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text-shadow: 0 0 26px rgba(123, 234, 90, 0.42);
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margin-left: 4px;
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font-weight: 300;
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line-height: 1;
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}
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/* Hidden probe used by measureNodeWidth */
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.measure-probe {
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position: absolute;
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left: -99999px;
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top: -99999px;
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visibility: hidden;
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white-space: pre;
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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="7"
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data-width="1920"
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data-height="1080"
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>
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<div class="viewport" data-layout-allow-overflow>
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<div class="strip" data-layout-allow-overflow>
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<!-- =====================================================
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SHOT 1 — "HyperFrames renders video"
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===================================================== -->
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<div
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id="shot-decode"
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class="shot shot1 clip"
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data-start="0"
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data-duration="3.5"
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data-track-index="1"
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>
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<div class="shot1-content">
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<div class="shot1-row">
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<span class="shot1-static">HyperFrames renders</span>
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<span class="shot1-accent" aria-label="video">
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<!-- .flip-glyph spans generated by JS -->
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</span>
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</div>
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</div>
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</div>
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<!-- =====================================================
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SHOT 2 — Search bar typing
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===================================================== -->
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<div
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id="shot-typing"
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class="shot shot2 clip"
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data-start="2.5"
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data-duration="4.5"
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data-track-index="2"
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>
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<div class="shot2-bar">
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<span class="search-text"></span><span class="search-cursor">_</span>
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</div>
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</div>
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</div>
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</div>
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</div>
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<script>
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/* ================================================================
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CONSTANTS — all baked at setup time.
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================================================================ */
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const W = 1920,
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H = 1080;
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const COMPOSITION_DURATION = 7;
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const FPS_HASH = 60; // synthetic clock for the flicker hash
|
||
|
||
const TIMING = {
|
||
// Phase 1: shot1 text fades in + rises
|
||
shot1EntryStart: 0.0,
|
||
shot1EntryDur: 0.67,
|
||
|
||
// Phase 2: hacker-flip "video"
|
||
flipStart: 0.7,
|
||
flipStagger: 0.066, // ~2 frames at 30fps per glyph
|
||
flipDuration: 0.55,
|
||
|
||
// Phase 3: horizontal pan
|
||
panStart: 2.83,
|
||
panDuration: 0.67,
|
||
|
||
// Phase 4: cursor-tracked typing
|
||
typingStart: 3.67, // panStart + panDuration + 0.17 buffer
|
||
charRate: 0.083, // seconds per character (~2.5 frames at 30fps)
|
||
};
|
||
|
||
const FULL_TEXT = "HTML, CSS and JS become MP4";
|
||
const FONT_SIZE = 120;
|
||
const PADDING_LEFT = 120;
|
||
const PADDING_RIGHT = 180;
|
||
const CURSOR_VIS_W = FONT_SIZE * 0.6; // visual cursor width approximation
|
||
const CURSOR_TARGET = W * 0.7; // screen X where cursor locks
|
||
const BAR_LEFT_MARGIN = 80; // initial left margin in Phase 4
|
||
const PARALLAX_DIST = 400; // px Shot 1 moves extra during pan
|
||
|
||
/* ================================================================
|
||
BUILD DOM — flip glyphs (Shot 1) generated synchronously.
|
||
The accent text is "video" → 5 glyphs.
|
||
================================================================ */
|
||
const accentEl = document.querySelector(".shot1-accent");
|
||
const ACCENT_WORD = "video";
|
||
ACCENT_WORD.split("").forEach((char, index) => {
|
||
const span = document.createElement("span");
|
||
span.className = "flip-glyph" + (char === " " ? " space" : "");
|
||
span.dataset.char = char;
|
||
span.dataset.index = String(index);
|
||
// Each glyph needs its own font-size to match the surrounding row.
|
||
span.style.fontSize = "130px";
|
||
const ghost = document.createElement("span");
|
||
ghost.className = "ghost";
|
||
ghost.textContent = char === " " ? " " : char;
|
||
const anim = document.createElement("span");
|
||
anim.className = "anim";
|
||
anim.textContent = char === " " ? " " : char;
|
||
span.append(ghost, anim);
|
||
accentEl.appendChild(span);
|
||
});
|
||
|
||
/* ================================================================
|
||
TEXT MEASUREMENT — uses a hidden DOM probe so we capture
|
||
real letter-spacing, kerning, and font-feature widths.
|
||
Must run AFTER document.fonts.ready.
|
||
================================================================ */
|
||
function measureNodeWidth(text, font) {
|
||
const probe = document.createElement("span");
|
||
probe.className = "measure-probe";
|
||
probe.style.font = font;
|
||
probe.style.whiteSpace = "pre";
|
||
probe.textContent = text;
|
||
document.body.appendChild(probe);
|
||
const width = probe.getBoundingClientRect().width;
|
||
probe.remove();
|
||
return width;
|
||
}
|
||
|
||
/* ================================================================
|
||
TIMELINE BUILD — fires after fonts are ready so measurements
|
||
use the real rendered metrics, not fallback fonts.
|
||
================================================================ */
|
||
window.__timelines = window.__timelines || {};
|
||
const tl = gsap.timeline({ paused: true });
|
||
|
||
// Register early so HF can find it; tweens are added below.
|
||
window.__timelines["main"] = tl;
|
||
|
||
document.fonts.ready.then(() => {
|
||
const searchFont = `400 ${FONT_SIZE}px Inter, system-ui, sans-serif`;
|
||
const fullTextWidth = measureNodeWidth(FULL_TEXT, searchFont);
|
||
const barWidth = PADDING_LEFT + fullTextWidth + CURSOR_VIS_W + PADDING_RIGHT;
|
||
|
||
// Pre-allocate the bar's final width — no width tweens ever.
|
||
const barEl = document.querySelector(".shot2-bar");
|
||
barEl.style.width = barWidth + "px";
|
||
|
||
// Initial bar position in Shot 2's local space.
|
||
// We position it at LEFT_MARGIN from the shot's left edge.
|
||
barEl.style.left = BAR_LEFT_MARGIN + "px";
|
||
barEl.style.transform = "translateY(-50%)"; // vertical center
|
||
|
||
// ============================================================
|
||
// PHASE 1: Shot 1 text fade in + rise
|
||
// ============================================================
|
||
tl.fromTo(
|
||
".shot1-content",
|
||
{ opacity: 0, y: 30 },
|
||
{
|
||
opacity: 1,
|
||
y: 0,
|
||
duration: TIMING.shot1EntryDur,
|
||
ease: "power2.out",
|
||
},
|
||
TIMING.shot1EntryStart,
|
||
);
|
||
|
||
// ============================================================
|
||
// PHASE 2: Hacker-flip "video"
|
||
// ============================================================
|
||
const CHAR_POOL = "abcdefghijklmnopqrstuvwxyz";
|
||
const FLICKER = 3;
|
||
const REVEAL_AT = 0.6;
|
||
|
||
// Deterministic 32-bit mix — replaces Math.random / seeded RNG.
|
||
function pseudoHash(i, t) {
|
||
return ((i * 374761393 + t * 668265263) >>> 0) % CHAR_POOL.length;
|
||
}
|
||
|
||
document.querySelectorAll(".flip-glyph").forEach((glyph) => {
|
||
const index = Number(glyph.dataset.index);
|
||
const real = glyph.dataset.char === " " ? " " : glyph.dataset.char;
|
||
const anim = glyph.querySelector(".anim");
|
||
const start = TIMING.flipStart + index * TIMING.flipStagger;
|
||
|
||
tl.fromTo(
|
||
anim,
|
||
{ rotationX: 90, opacity: 0, "--p": 0 },
|
||
{
|
||
rotationX: 0,
|
||
opacity: 1,
|
||
"--p": 1,
|
||
duration: TIMING.flipDuration,
|
||
ease: "back.out(1.6)", // spring(stiffness:150, damping:14)
|
||
onUpdate: function () {
|
||
const p = Number(gsap.getProperty(anim, "--p"));
|
||
if (p >= REVEAL_AT) {
|
||
if (anim.textContent !== real) anim.textContent = real;
|
||
} else {
|
||
const localFrame = Math.floor((tl.time() - start) * FPS_HASH);
|
||
const bucket = Math.max(0, Math.floor(localFrame / FLICKER));
|
||
anim.textContent = CHAR_POOL[pseudoHash(index, bucket)];
|
||
}
|
||
},
|
||
},
|
||
start,
|
||
);
|
||
});
|
||
|
||
// ============================================================
|
||
// PHASE 3: Horizontal pan + parallax exit + Shot 2 entry
|
||
// All three tweens at the same timeline position run in parallel.
|
||
// ============================================================
|
||
// (a) Camera pan — strip slides one full viewport left.
|
||
tl.to(
|
||
".strip",
|
||
{
|
||
x: -W,
|
||
duration: TIMING.panDuration,
|
||
ease: "power3.inOut", // cinematic slow-in-slow-out
|
||
},
|
||
TIMING.panStart,
|
||
);
|
||
|
||
// (b) Shot 1 parallax exit — content moves EXTRA -PARALLAX_DIST.
|
||
tl.to(
|
||
".shot1-content",
|
||
{
|
||
x: -PARALLAX_DIST,
|
||
duration: TIMING.panDuration,
|
||
ease: "power3.inOut",
|
||
},
|
||
TIMING.panStart,
|
||
);
|
||
|
||
// Shot 1 fades out partway through the pan so the eye lands on Shot 2.
|
||
tl.to(
|
||
".shot1-content",
|
||
{
|
||
opacity: 0,
|
||
duration: TIMING.panDuration * 0.4,
|
||
ease: "power2.out",
|
||
},
|
||
TIMING.panStart,
|
||
);
|
||
|
||
// (c) Shot 2 bar entry — fade + scale with mild overshoot ("landing").
|
||
tl.fromTo(
|
||
".shot2-bar",
|
||
{ opacity: 0, scale: 0.8 },
|
||
{
|
||
opacity: 1,
|
||
scale: 1,
|
||
duration: TIMING.panDuration,
|
||
ease: "back.out(1.2)",
|
||
},
|
||
TIMING.panStart,
|
||
);
|
||
|
||
// ============================================================
|
||
// PHASE 4: Cursor-tracked typing.
|
||
//
|
||
// The strip is now at x = -W (Shot 2 fully on screen). For the
|
||
// cursor-track effect we'll *further* shift the strip by a piecewise
|
||
// amount: hold initial offset while the empty bar's cursor is left
|
||
// of CURSOR_TARGET, then follow once typing pushes it past.
|
||
// ============================================================
|
||
const searchTextEl = document.querySelector(".search-text");
|
||
const stripEl = document.querySelector(".strip");
|
||
|
||
const CURSOR_WIDTH_HALF = CURSOR_VIS_W / 2;
|
||
const STRIP_BASE_X = -W; // strip's x at the end of Phase 3
|
||
|
||
// Initial Phase-4 offset = 0 (no additional shift on top of -W).
|
||
// i.e. bar already sits at BAR_LEFT_MARGIN inside Shot 2.
|
||
const INITIAL_OFFSET = 0;
|
||
|
||
// Typing driver — a clock that runs from 0 to FULL_TEXT.length.
|
||
const typingProxy = { progress: 0 };
|
||
const typingDur = FULL_TEXT.length * TIMING.charRate;
|
||
const typingEnd = TIMING.typingStart + typingDur;
|
||
const postTypingHold = Math.max(0, COMPOSITION_DURATION - typingEnd);
|
||
|
||
tl.to(
|
||
typingProxy,
|
||
{
|
||
progress: FULL_TEXT.length,
|
||
duration: typingDur,
|
||
ease: "none",
|
||
onUpdate: function () {
|
||
const charsTyped = Math.min(FULL_TEXT.length, Math.floor(typingProxy.progress));
|
||
const visibleText = FULL_TEXT.slice(0, charsTyped);
|
||
if (searchTextEl.textContent !== visibleText) {
|
||
searchTextEl.textContent = visibleText;
|
||
}
|
||
|
||
// Measure current visible width to compute cursor screen position.
|
||
// Cheap because Inter's metrics are cached after the first call.
|
||
const visibleW =
|
||
visibleText.length === 0 ? 0 : measureNodeWidth(visibleText, searchFont);
|
||
|
||
// Cursor X in *Shot 2's* coordinate system:
|
||
// shot left edge → bar left edge (BAR_LEFT_MARGIN)
|
||
// → cursor within bar (PADDING_LEFT + visibleW + CURSOR_WIDTH_HALF)
|
||
const cursorXInShot2 = BAR_LEFT_MARGIN + PADDING_LEFT + visibleW + CURSOR_WIDTH_HALF;
|
||
|
||
// For the cursor to land at CURSOR_TARGET on the *screen*, the
|
||
// strip must be shifted by:
|
||
// stripX = CURSOR_TARGET - cursorXInShot2 - W (the -W accounts
|
||
// for Shot 2 being the SECOND shot in the strip)
|
||
const trackingStripX = CURSOR_TARGET - cursorXInShot2 - W;
|
||
|
||
// Piecewise: hold STRIP_BASE_X + INITIAL_OFFSET until tracking
|
||
// would pan FURTHER LEFT than the base, then follow.
|
||
const finalStripX = Math.min(STRIP_BASE_X + INITIAL_OFFSET, trackingStripX);
|
||
|
||
gsap.set(stripEl, { x: finalStripX });
|
||
},
|
||
},
|
||
TIMING.typingStart,
|
||
);
|
||
|
||
if (postTypingHold > 0) {
|
||
tl.to(
|
||
".search-cursor",
|
||
{
|
||
opacity: 0.22,
|
||
duration: postTypingHold / 2,
|
||
repeat: 1,
|
||
yoyo: true,
|
||
ease: "none",
|
||
},
|
||
typingEnd,
|
||
);
|
||
}
|
||
});
|
||
</script>
|
||
</body>
|
||
</html>
|