mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-11-03 12:17:03 +00:00
Miguel Ángel
f24ff83834
* feat(catalog): add the seven 3D-motion pieces as installable registry blocks Each piece ships as a registry block with a CDN poster and preview, a live catalog detail page and its source. Scripts travel inside the catalog payload (shared vendor libraries fetched once, item scripts inline, the one HDR as a data URI) because the docs host only serves fonts, images and JSON. NO_ESSAY_COMMENTS_OK: the long comment blocks are in vendored libraries and the ported frost source under registry/blocks, not hand-written here. HF_MAX_NONLFS_KB=6000: four hosted texture PNGs under docs/public/catalog/items are runtime assets the docs host must serve as files. fallow skipped locally: it audits against origin/main and this branch is stacked on an older main. * chore(catalog): regenerate gallery data and nav after rebasing onto main * fix(catalog): read the install manifest through the bounded project reader * fix(catalog): a script the inliner missed fails the payload instead of shipping a dead URL * refactor(catalog): the leftover-script check reuses the reference finder * fix(catalog): frost and glass textures load from the CDN and the iteration presets are gone * chore(catalog): regenerate the frost and glass payloads and nav * fix(catalog): frost and glass textures are hosted through the registry url field, not hardcoded * chore(catalog): regenerate the frost and glass payloads against the hosted texture URLs * fix(catalog): the hosted-reference rewrite refuses a bare name it cannot safely replace * ci(catalog): verify changed catalog payloads in headless Chrome and check the docs catalog * feat(catalog): every item page follows the shared layout with a Tune panel and tabs * fix(catalog): let the texture-mask item host its masks so its tile plays live * chore(catalog): regenerate item pages, gallery data and the texture-mask payload * chore(catalog): regenerate item pages after merging main * fix(catalog): declared-only variables get the Tune panel, Code and Docs tabs capped * feat(catalog): give the blend-difference caption a demo scene so its tile plays live * chore(catalog): live payload for the blend-difference caption * perf(catalog): heavy 3d pieces compile and draw before ready, not on the first visible frame * feat(catalog): the avatar promo card hosts its videos, audio and fonts on the CDN * feat(catalog): the avatar promo card tile plays live from its CDN-hosted media * chore(catalog): the avatar promo card plays live, no allowlist left * chore(catalog): shorten two comment blocks * chore(catalog): trim first-party comment blocks to the comment-check limits * chore(catalog): shorten two frost source comments * fix(catalog): the Docs tab renders as prose again, and the detail page honours reduced motion Frame-mode pages carry no prose wrapper, and the detail component sat inside not-prose, so the Docs slot's headings, paragraphs, links and lists had no styling at all. The slots now carry their own prose classes and the chrome around them keeps not-prose. The recorded clip also gets the reduced-motion guard the docs-snippet check requires, and the generator reads stability from the source metadata type so the scripts typecheck passes. * fix(catalog): docs-tab paragraphs render as blocks Mintlify emits paragraphs as inline spans, so two paragraphs in the Docs slot ran together. * fix(ci): drop the duplicate docs_catalog job output git's line-based auto-merge silently duplicated the outputs key when main and this branch each added it on non-adjacent lines during the rebase; oxfmt's yaml parser rejects the repeated map key. * fix(catalog): close four CodeQL alerts in the frost source * chore(catalog): allowlist the avatar-promo-card CDN asset deletions, format sync-docs-catalog check-no-main-deletions.mjs was rejecting 11 local mp4/font files this branch already deleted in favor of CDN hosting; scripts/sync-docs-catalog.mjs had one line over the 100-col print width from an earlier edit in this branch. * fix(catalog): detail tabs use docs prose spacing, Install first; previews skip no-WebGPU runners * fix(catalog): the docs tab scrolls with the page instead of a capped inner box * refactor(catalog): split the payload asset and verify scripts into single-purpose helpers * refactor(catalog): split the preview generator into single-purpose helpers * ci(catalog): fail when the committed catalog differs from generator output The docs host serves the committed catalog and nothing regenerates it, so a stale copy shipped silently. The catalog payloads job now generates into a temp dir and compares it with the committed tree. * chore(catalog): regenerate docs/public/catalog with the refactored scripts One full regeneration from an empty output tree with the current scripts. The tree grows from 58.4 MB to 65.1 MB. Two hosted assets are about 2 MB each (an avatar png and a wav); the same bytes are already committed under assets/, so HF_MAX_NONLFS_KB is raised for this commit only. * fix(catalog): run the catalog script tests under the runner they are written for The rebase put three node:test files in the vitest half of test:scripts, where they report "No test suite found". They now sit in the node --test list. * fix(catalog): a WebGPU item without an adapter shows its recorded clip and says why * ci(catalog): the drift check runs from a committed fetch mirror with no network Generation now serves every font and CDN script fetch from scripts/catalog-fetch-mirror and fails when a fetch is not in it, even if the caller swallowed the error. CATALOG_FETCH_MIRROR=record refreshes the mirror from the live network. The docs_catalog filter also watches packages/core, packages/producer and the mirror, and the 13 re-hashed font files are listed in ALLOWED_DELETIONS. * chore(catalog): clean up the temp font cache and sort the mirror index without a locale * fix(catalog): hide Tune when the clip stands in, time out the adapter request, share one check * fix(catalog): the adapter probe survives a sync throw and a hang; test the clip guard * fix(catalog): keep the adapter probe inside the component, Mintlify evaluates only exports * fix(catalog): run the detail and page generator tests in CI; no Tune flash while probing WebGPU * docs(catalog): credit vendored libraries and make each SKILL.md list what the block installs CREDITS.md names every vendored dependency with its upstream and licence, and flags the two leaf textures whose origin is still to be confirmed. Each SKILL.md Files table now comes from the block manifest and its install and render paths point at compositions/<name>/. A test checks that every path a SKILL.md names is a manifest file that exists. * fix(catalog): a declared WebGPU item passes verify by its manifest tag, not by console wording verify-catalog-payloads forgave a missing adapter only by matching the markup and the message, which library-reported errors and widgets never satisfy. The webgpu tag in the item manifest is now the owner: a tagged item ignores its page and console errors, an untagged one gets no forgiveness, and a marker payload with no html is listed instead of crashing the run. * docs(catalog): correct the credits per block and guard the mount and render paths CREDITS.md states the three.js version and vendored-or-CDN status per block, adds d3-delaunay, Clipper on the CDN and the Google Fonts loads, and lists every texture with no known origin. The SKILL.md test now also checks the mount and render paths against the manifest composition. * test(catalog): read each block manifest once in the SKILL.md file test The two checks shared a copied manifest read, which fallow flagged as a clone with a high score. * fix(catalog): commit the hosted item files a gitignore rule kept out, and check git not the disk The compositions/ and *-ad/ ignore rules matched folder names under docs/public/catalog/items, so 33 hosted fonts, textures and marks were generated but never committed and would 404 on the docs host. The rules now have a negation for that tree and the files are added. The drift check read the checkout, where git-ignored files still exist, so it passed locally and failed only in CI. It now unpacks HEAD with git archive and compares that. * fix(catalog): a tile keeps its poster until the composition has painted * fix(catalog): a tagged WebGPU item forgives only the adapter-absent error, and test the wiring The manifest webgpu tag now decides whether an item may lack an adapter, and the error wording decides which lines are that absence. Any other page or console error on the item, and every failed request, still fails. The per-item decision is one exported function the tests drive, marker payloads are parsed by a tested helper, and the SKILL.md variable counts are checked against their tables (cuboid-carousel said forty-nine for forty). * fix(catalog): the pinned group's posters load eagerly at high priority * fix(catalog): type the tile reveal test so the scripts typecheck passes * fix(catalog): stop the adapter signature matching an unrelated failed adapter request failed to request .*adapter also matched errors about other adapters. It now matches only a request for the WebGPU adapter, so a tagged item cannot hide an unrelated failure behind it. * test(catalog): a tagged item still fails on an error about some other adapter * feat(catalog): the install command sits above the preview, as on the live catalog * fix(catalog): find the install slot through Mintlify's child wrapper * fix(docs): catalog copy buttons keep their size when the label swaps to Copied * refactor(docs): name the shown copy label once in the catalog copy button * fix(docs): primary catalog button keeps a readable label on hover and after copy * fix(docs): inset the catalog tab strip and tab content to match the boxed panels
513 lines
22 KiB
Plaintext
513 lines
22 KiB
Plaintext
---
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title: "Camera Follow Captions"
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description: "One sentence written across a world far larger than the frame. Each word is sized against everything already written, so the block grows geometrically and the camera pulls back at a steady rate to keep landing the new word at the same size. Old words stay lit and simply become small."
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mode: "frame"
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---
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import { CatalogDetail, CatalogSlot } from "/snippets/catalog-detail.jsx";
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import { InstallCommand } from "/snippets/install-command.jsx";
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<CatalogDetail
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previewSrc="/public/catalog/components/caption-camera-follow.json"
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compositionId="caption-camera-follow"
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compositionSrc="compositions/components/caption-camera-follow.html"
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title="Camera Follow Captions"
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description="One sentence written across a world far larger than the frame. Each word is sized against everything already written, so the block grows geometrically and the camera pulls back at a steady rate to keep landing the new word at the same size. Old words stay lit and simply become small."
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variables={[{"id":"accent","type":"enum","role":"style","label":"Accent","description":"Colour of the highlighted words. gold is the original.","default":"gold","options":[{"value":"gold","label":"Gold"},{"value":"green","label":"Green"},{"value":"blue","label":"Blue"},{"value":"violet","label":"Violet"}]},{"id":"framing","type":"enum","role":"style","label":"Framing","description":"Air the camera leaves around the written block, so the words land larger or smaller in frame.","default":"standard","options":[{"value":"tight","label":"Tight"},{"value":"standard","label":"Standard"},{"value":"wide","label":"Wide"}]},{"id":"smear","type":"enum","role":"style","label":"Smear","description":"Scales the radial motion blur each camera move carries, from none to a heavy streak.","default":"standard","options":[{"value":"off","label":"Off"},{"value":"subtle","label":"Subtle"},{"value":"standard","label":"Standard"},{"value":"heavy","label":"Heavy"}]}]}
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meta={{"category":"Captions","badge":"Stable","codeLines":431}}
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attribution={{"path":"registry/components/caption-camera-follow","tags":["captions","caption-style","camera","typography","motion-primitive","portrait"]}}
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hasCode
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rawUrl="https://raw.githubusercontent.com/heygen-com/hyperframes/main/registry/components/caption-camera-follow/caption-camera-follow.html"
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>
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<CatalogSlot slot="code">
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```html caption-camera-follow.html
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<!doctype html>
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<!--
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caption-camera-follow: the words do not move, the camera does.
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One sentence. Layout is self similar: every new word is sized as a fraction of the
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bounding box of everything written so far, and is dropped either to the right of that
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box or onto a new line below it, alternating. Because each word is measured against a
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box that keeps growing, the box grows geometrically, so the camera pulls back at a
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steady exponential rate and every word arrives at roughly the same size on screen. Old
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words stay lit and simply become small, piling up toward the top left the way
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handwriting fills a page. The last beat carries the same pull back all the way out
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until the whole sentence is readable at once.
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Variables. The script reads each one, falls back to the declared default on
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anything missing or unrecognised, and applies it before the timeline is built.
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Duration, word order and cadence are untouched by them.
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- accent (gold | green | blue | violet, default gold): the colour of the
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highlighted words.
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- framing (tight | standard | wide, default standard): the air the camera
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leaves around the written block. tight lands each word larger in frame,
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wide sits further back. Every move and the closing pull back scale
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together, so the shot stays one continuous camera.
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- smear (off | subtle | standard | heavy, default standard): scales the
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radial motion blur each move carries. off renders every frame sharp.
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On every default the result is identical to the original: gold highlights, a
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1.36 margin around the block and a peak smear of 2.6 percent of frame width.
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Every ease is a cubic bezier written out by hand and solved in this file. No preset is
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used anywhere. Motion blur is radial, the way it reads in real camera footage: each word
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carries its own blur share, scaled by how far that word sits from the centre of the move,
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so the frame smears outward from the point the camera is pushing toward. One shared
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amount variable is tweened per move and every word multiplies it by its own distance
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share, so the whole radial pulse costs one tween instead of fourteen.
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Mount contract: everything lives inside <template>, styles and scripts included, and the
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scripts sit INSIDE the composition root. A host clones template content into its own
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mount and only runs scripts found inside the root; markup left outside is copied without
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its behaviour, which renders a black card with no timeline at all.
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-->
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<title>Camera Follow Captions</title>
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</head>
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<body>
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<template>
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<div
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id="root"
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class="clip cf-root"
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data-composition-id="caption-camera-follow"
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data-duration="9"
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data-fps="30"
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data-composition-variables='[
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{ "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Colour of the highlighted words. gold is the original.", "default": "gold", "options": [{ "value": "gold", "label": "Gold" }, { "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
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{ "id": "framing", "type": "enum", "role": "style", "label": "Framing", "description": "Air the camera leaves around the written block, so the words land larger or smaller in frame.", "default": "standard", "options": [{ "value": "tight", "label": "Tight" }, { "value": "standard", "label": "Standard" }, { "value": "wide", "label": "Wide" }] },
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{ "id": "smear", "type": "enum", "role": "style", "label": "Smear", "description": "Scales the radial motion blur each camera move carries, from none to a heavy streak.", "default": "standard", "options": [{ "value": "off", "label": "Off" }, { "value": "subtle", "label": "Subtle" }, { "value": "standard", "label": "Standard" }, { "value": "heavy", "label": "Heavy" }] }
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]'
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>
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<style>
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[data-composition-id="caption-camera-follow"] {
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--cf-accent: #ffd84d;
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--ink: #ffffff;
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position: absolute;
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inset: 0;
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overflow: hidden;
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background: transparent;
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pointer-events: none;
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}
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#cf-stage {
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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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#cf-world {
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position: absolute;
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left: 0;
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top: 0;
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width: 0;
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height: 0;
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--amt: 0px;
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}
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.cf-word {
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position: absolute;
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white-space: nowrap;
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font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
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font-weight: 700;
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text-transform: uppercase;
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letter-spacing: 0.005em;
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line-height: 0.78;
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color: var(--ink);
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opacity: 0;
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--k: 0;
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filter: blur(calc(var(--k) * var(--amt)));
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}
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.cf-word.is-accent {
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color: var(--cf-accent);
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}
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#cf-vignette {
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position: absolute;
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inset: 0;
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background: radial-gradient(
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ellipse at 50% 50%,
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rgba(0, 0, 0, 0) 42%,
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rgba(0, 0, 0, 0.55) 100%
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);
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}
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</style>
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<div id="cf-stage">
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<div id="cf-world"></div>
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</div>
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<div id="cf-vignette"></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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gsap.defaults({ immediateRender: false });
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/* Cubic bezier solver. Newton first, bisection as the fallback, so it is
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exact and deterministic for every input. */
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function bezier(x1, y1, x2, y2) {
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function curve(t, a1, a2) {
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var A = 1 - 3 * a2 + 3 * a1;
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var B = 3 * a2 - 6 * a1;
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var C = 3 * a1;
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return ((A * t + B) * t + C) * t;
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}
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function slope(t, a1, a2) {
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var A = 1 - 3 * a2 + 3 * a1;
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var B = 3 * a2 - 6 * a1;
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var C = 3 * a1;
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return (3 * A * t + 2 * B) * t + C;
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}
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return function (p) {
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if (p <= 0) return 0;
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if (p >= 1) return 1;
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var t = p;
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for (var i = 0; i < 8; i++) {
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var d = slope(t, x1, x2);
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if (Math.abs(d) < 1e-6) break;
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var e = curve(t, x1, x2) - p;
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if (Math.abs(e) < 1e-7) return curve(t, y1, y2);
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t -= e / d;
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}
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var lo = 0;
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var hi = 1;
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t = p;
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for (var j = 0; j < 24; j++) {
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var x = curve(t, x1, x2);
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if (Math.abs(x - p) < 1e-7) break;
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if (x > p) hi = t;
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else lo = t;
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t = (lo + hi) / 2;
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}
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return curve(t, y1, y2);
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};
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}
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/* Leaves the mark fast, spends most of its time arriving. */
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var EASE_STEP = bezier(0.31, 0, 0.11, 1);
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/* The closing pull back: slower to leave, glides a long way out. */
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var EASE_WIDE = bezier(0.42, 0, 0.14, 1);
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/* Word ink coming up. */
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var EASE_INK = bezier(0.2, 0.7, 0.3, 1);
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/* Blur rising into the move and wiped off out of it. */
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var EASE_BLUR_UP = bezier(0.2, 0.8, 0.4, 1);
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var EASE_BLUR_DOWN = bezier(0.5, 0, 0.2, 1);
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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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/* Unrecognised overrides return to their declared defaults. */
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function pick(table, value, fallback) {
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return Object.prototype.hasOwnProperty.call(table, value) ? value : fallback;
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}
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var ACCENTS = {
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gold: "#ffd84d",
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green: "#34d399",
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blue: "#38bdf8",
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violet: "#a78bfa",
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};
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/* Framing scales the margin every camera pose is fitted with, so one
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number moves the whole shot in or out without touching cadence. */
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var FRAMINGS = { tight: 0.82, standard: 1, wide: 1.25 };
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var SMEARS = { off: 0, subtle: 0.5, standard: 1, heavy: 1.9 };
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var ACCENT = ACCENTS[pick(ACCENTS, vars.accent, "gold")];
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var FRAMING = FRAMINGS[pick(FRAMINGS, vars.framing, "standard")];
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var SMEAR = SMEARS[pick(SMEARS, vars.smear, "standard")];
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var DUR = 9;
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var STEP = 0.52;
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var MOVE = 0.4;
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var WORDS = [
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{ text: "write" },
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{ text: "the" },
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{ text: "html", accent: true },
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{ text: "and" },
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{ text: "the" },
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{ text: "video", accent: true },
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{ text: "renders" },
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{ text: "itself" },
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{ text: "no" },
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{ text: "timeline" },
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{ text: "no" },
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{ text: "keyframes", accent: true },
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{ text: "just" },
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{ text: "code", accent: true },
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];
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var world = document.getElementById("cf-world");
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var stage = document.getElementById("cf-stage");
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/* The runtime strips the root id on clone, so reach the root through a
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descendant instead of getElementById. */
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var root = stage.parentElement;
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var FRAME_W = root.clientWidth || 1080;
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var FRAME_H = root.clientHeight || 1920;
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root.style.setProperty("--cf-accent", ACCENT);
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/* Base size is picked so the opening shot sits near 1:1. Everything after it
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is a pull back, so the world is only ever scaled down and type stays crisp. */
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var BASE = Math.max(FRAME_W, FRAME_H) * 0.16;
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/* Each new word is this fraction of the current box height. */
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var RATIO = 0.72;
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var MARGIN = 1.36 * FRAMING;
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var ruler = document.createElement("div");
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ruler.style.cssText =
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"position:absolute;left:-99999px;top:0;white-space:nowrap;visibility:hidden;" +
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'font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;' +
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"text-transform:uppercase;letter-spacing:0.005em;line-height:0.78";
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world.appendChild(ruler);
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var box = null;
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WORDS.forEach(function (wd, i) {
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var fs = i === 0 ? BASE : (box.y1 - box.y0) * RATIO;
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ruler.style.fontSize = fs + "px";
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ruler.textContent = wd.text;
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var w = ruler.getBoundingClientRect().width;
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var h = fs * 0.78;
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var gap = fs * 0.07;
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var x, y;
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if (i === 0) {
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x = 0;
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y = 0;
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} else if ((box.x1 - box.x0) / (box.y1 - box.y0) < FRAME_W / FRAME_H) {
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/* block is narrower than the frame, so grow sideways: to the right of
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everything, sitting on the same baseline */
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x = box.x1 + gap;
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y = box.y1 - h;
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} else {
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/* block is already wide enough, so grow downward: onto a new line under
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everything, left edges aligned */
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x = box.x0;
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y = box.y1 + gap;
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}
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wd.fs = fs;
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wd.x = x;
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wd.y = y;
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box = box
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? {
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x0: Math.min(box.x0, x),
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y0: Math.min(box.y0, y),
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x1: Math.max(box.x1, x + w),
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y1: Math.max(box.y1, y + h),
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}
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: { x0: x, y0: y, x1: x + w, y1: y + h };
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wd.box = { x0: box.x0, y0: box.y0, x1: box.x1, y1: box.y1 };
|
|
});
|
|
world.removeChild(ruler);
|
|
|
|
var FULL = box;
|
|
|
|
function poseFor(b, margin) {
|
|
var bw = (b.x1 - b.x0) * margin;
|
|
var bh = (b.y1 - b.y0) * margin;
|
|
var s = Math.min(FRAME_W / bw, FRAME_H / bh);
|
|
return {
|
|
x: FRAME_W / 2 - (s * (b.x0 + b.x1)) / 2,
|
|
y: FRAME_H / 2 - (s * (b.y0 + b.y1)) / 2,
|
|
scale: s,
|
|
};
|
|
}
|
|
|
|
var els = WORDS.map(function (wd) {
|
|
var el = document.createElement("div");
|
|
el.className = "cf-word" + (wd.accent ? " is-accent" : "");
|
|
el.textContent = wd.text;
|
|
el.style.left = wd.x + "px";
|
|
el.style.top = wd.y + "px";
|
|
el.style.fontSize = wd.fs + "px";
|
|
world.appendChild(el);
|
|
return el;
|
|
});
|
|
|
|
/* Re-derive every framing box from what the browser actually laid out, so
|
|
the camera is fitted to real ink and never to arithmetic that drifted. */
|
|
var run = null;
|
|
els.forEach(function (el, i) {
|
|
var r = {
|
|
x0: el.offsetLeft,
|
|
y0: el.offsetTop,
|
|
x1: el.offsetLeft + el.offsetWidth,
|
|
y1: el.offsetTop + el.offsetHeight,
|
|
};
|
|
run = run
|
|
? {
|
|
x0: Math.min(run.x0, r.x0),
|
|
y0: Math.min(run.y0, r.y0),
|
|
x1: Math.max(run.x1, r.x1),
|
|
y1: Math.max(run.y1, r.y1),
|
|
}
|
|
: r;
|
|
WORDS[i].box = { x0: run.x0, y0: run.y0, x1: run.x1, y1: run.y1 };
|
|
});
|
|
FULL = run;
|
|
|
|
/* Rest state is pinned outside the timeline. */
|
|
var first = poseFor(WORDS[0].box, MARGIN);
|
|
gsap.set(world, {
|
|
transformOrigin: "0 0",
|
|
x: first.x,
|
|
y: first.y,
|
|
scale: first.scale,
|
|
});
|
|
gsap.set(els, { opacity: 0, "--k": 0 });
|
|
gsap.set(world, { "--amt": "0px" });
|
|
/* The first word is already on the page when the shot opens, so frame zero
|
|
is never empty. */
|
|
gsap.set(els[0], { opacity: 1 });
|
|
|
|
var tl = gsap.timeline({ paused: true });
|
|
/* Peak smear at the rim of the frame, in screen pixels. */
|
|
var BLUR = FRAME_W * 0.026 * SMEAR;
|
|
var HALF_DIAG = Math.sqrt(FRAME_W * FRAME_W + FRAME_H * FRAME_H) / 2;
|
|
|
|
/* Radial blur, the way a real zoom smears: a point far from the centre of
|
|
the move sweeps across more of the frame than one sitting on it, so it
|
|
streaks more. Each word gets its own share, --k, of one shared amount,
|
|
--amt, which is the only thing that animates. The share is fixed for the
|
|
length of a move and set with the camera, so this stays one tween per
|
|
move rather than one per word per move. --amt is authored in world units,
|
|
because a filter on a scaled child is applied before the scale, so the
|
|
screen blur has to be divided back out by the camera scale. */
|
|
function smear(centre, scale, count, at, up, down, peak) {
|
|
for (var j = 0; j < count; j++) {
|
|
var el = els[j];
|
|
var cx = el.offsetLeft + el.offsetWidth / 2;
|
|
var cy = el.offsetTop + el.offsetHeight / 2;
|
|
var d =
|
|
(scale *
|
|
Math.sqrt(
|
|
(cx - centre.x) * (cx - centre.x) + (cy - centre.y) * (cy - centre.y),
|
|
)) /
|
|
HALF_DIAG;
|
|
tl.set(el, { "--k": (0.2 + 1.15 * Math.min(1, d)).toFixed(3) }, at);
|
|
}
|
|
var amt = peak / scale;
|
|
tl.fromTo(
|
|
world,
|
|
{ "--amt": "0px" },
|
|
{ "--amt": amt + "px", duration: up, ease: EASE_BLUR_UP },
|
|
at,
|
|
);
|
|
tl.to(world, { "--amt": "0px", duration: down, ease: EASE_BLUR_DOWN }, at + up);
|
|
}
|
|
|
|
WORDS.forEach(function (wd, i) {
|
|
var t = i * STEP;
|
|
if (i === 0) return;
|
|
|
|
tl.fromTo(els[i], { opacity: 0 }, { opacity: 1, duration: 0.16, ease: EASE_INK }, t);
|
|
|
|
var p = poseFor(wd.box, MARGIN);
|
|
tl.to(world, { x: p.x, y: p.y, scale: p.scale, duration: MOVE, ease: EASE_STEP }, t);
|
|
|
|
smear(
|
|
{ x: (wd.box.x0 + wd.box.x1) / 2, y: (wd.box.y0 + wd.box.y1) / 2 },
|
|
p.scale,
|
|
i + 1,
|
|
t,
|
|
MOVE * 0.24,
|
|
MOVE * 0.44,
|
|
BLUR,
|
|
);
|
|
});
|
|
|
|
/* The resolve: the same pull back, carried all the way out. */
|
|
var wide = poseFor(FULL, 1.2 * FRAMING);
|
|
var wideAt = (WORDS.length - 1) * STEP + 0.62;
|
|
tl.to(
|
|
world,
|
|
{
|
|
x: wide.x,
|
|
y: wide.y,
|
|
scale: wide.scale,
|
|
duration: 0.94,
|
|
ease: EASE_WIDE,
|
|
},
|
|
wideAt,
|
|
);
|
|
smear(
|
|
{ x: (FULL.x0 + FULL.x1) / 2, y: (FULL.y0 + FULL.y1) / 2 },
|
|
wide.scale,
|
|
els.length,
|
|
wideAt,
|
|
0.3,
|
|
0.58,
|
|
BLUR * 0.8,
|
|
);
|
|
|
|
tl.set({}, {}, DUR);
|
|
tl.seek(0);
|
|
|
|
window.__timelines = window.__timelines || {};
|
|
window.__timelines["caption-camera-follow"] = tl;
|
|
})();
|
|
</script>
|
|
</div>
|
|
</template>
|
|
</body>
|
|
</html>
|
|
```
|
|
|
|
</CatalogSlot>
|
|
|
|
<CatalogSlot slot="install">
|
|
|
|
<InstallCommand command="npx hyperframes add caption-camera-follow" item="caption-camera-follow" />
|
|
|
|
That writes one file: `compositions/components/caption-camera-follow.html`.
|
|
|
|
</CatalogSlot>
|
|
|
|
<CatalogSlot slot="docs">
|
|
|
|
## Paste it into your composition
|
|
|
|
Open `compositions/components/caption-camera-follow.html` and copy what is inside into your own composition.
|
|
|
|
A component has no size or duration of its own. It takes both from the composition
|
|
you paste it into.
|
|
|
|
## Variables
|
|
|
|
Every one of these has a default, so the piece works untouched. Set the ones you
|
|
want to change on the element:
|
|
|
|
| Variable | Default | Accepts | What it does |
|
|
| --- | --- | --- | --- |
|
|
| `accent` | `gold` | `gold`, `green`, `blue`, `violet` | Colour of the highlighted words. gold is the original. |
|
|
| `framing` | `standard` | `tight`, `standard`, `wide` | Air the camera leaves around the written block, so the words land larger or smaller in frame. |
|
|
| `smear` | `standard` | `off`, `subtle`, `standard`, `heavy` | Scales the radial motion blur each camera move carries, from none to a heavy streak. |
|
|
|
|
Set them with `data-variable-values` on the element that mounts it. These are the
|
|
defaults, so this behaves exactly like the preview above until you change one:
|
|
|
|
```html wrap
|
|
<div
|
|
data-composition-id="caption-camera-follow"
|
|
data-composition-src="compositions/components/caption-camera-follow.html"
|
|
data-variable-values='{"accent":"gold","framing":"standard","smear":"standard"}'
|
|
></div>
|
|
```
|
|
|
|
{/* hf:generated-footer */}
|
|
|
|
Tagged `captions` `caption-style` `camera` `typography` `motion-primitive` `portrait`.
|
|
|
|
## Related topics
|
|
|
|
- [Browse the complete Catalog](/catalog)
|
|
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
|
|
- [Build a richer composition](/go-further)
|
|
|
|
</CatalogSlot>
|
|
|
|
</CatalogDetail>
|