Files
hyperframes/docs/catalog/blocks/loop-tabs.mdx
Miao YangandClaude Fable 5.1 44c43fd99f feat(registry): add 249 seamless image-loop blocks (95 motion families, 1:1)
One block per loop variant (loop-<family>[-<n>], 1080x1080), one hand-written engine per family,
driven by a single paused GSAP timeline that recomputes every card transform from t. Every engine
parameter is exposed through data-composition-variables, grouped like a template editor's panel
(Media / Background / Appearance / Animation / Template options), plus image1..N content slots
that default to monochrome SVG placeholders. No third-party media ships.

Validation: scripts/lint-registry-items.mjs 249/249, oxfmt clean, hyperframes check on one variant
per family (95/95), registry.json + docs/catalog pages regenerated by the repo scripts. Previews are
rendered locally (720^2) and need the docs-images upload.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-09 18:40:32 +08:00

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---
title: "Loop Tabs"
description: "A hero image above an arc of round tab buttons; the arc rotates to select the next image. 8 image slots, 14s seamless loop, 1:1."
---
import { InstallCommand } from "/snippets/install-command.jsx";
<video className="w-full aspect-video rounded-xl object-cover bg-zinc-100 dark:bg-zinc-800" src="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/loop-tabs.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/loop-tabs.png" autoPlay muted loop playsInline />
## Install
<InstallCommand command="npx hyperframes add loop-tabs" item="loop-tabs" />
That writes one file: `compositions/loop-tabs.html`.
## Add it to your video
It runs for 14 seconds at 1080×1080. Paste this into your composition:
```html index.html
<div
data-composition-id="loop-tabs"
data-composition-src="compositions/loop-tabs.html"
data-start="0"
data-duration="14"
data-track-index="1"
data-width="1080"
data-height="1080"
></div>
```
Move it in time with `data-start`. Put it on a different timeline row with
`data-track-index`. See [data attributes](/concepts/data-attributes) for the rest.
## 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 |
| --- | --- | --- | --- |
| `mediaFit` | `natural` | `natural`, `crop` | Natural keeps each image's own ratio; Crop fills the card box at the media aspect below. |
| `cropAspectRatio` | `1:1` | `16:9`, `9:16`, `1:1`, `4:5`, `3:2`, `3:4`, `2:3` | Card aspect used when Fit is Crop. |
| `backgroundType` | `gradient` | `gradient`, `color`, `image` | Gradient (start → end colours), flat Colour, or your own Image. |
| `backgroundGradientStart` | `#111111` | color | Top colour of the gradient. |
| `backgroundGradientEnd` | `#444444` | color | Bottom colour of the gradient. |
| `backgroundColor` | `#0b0b0f` | color | Flat colour when Type is Color; also the ground under an Image. |
| `backgroundImage` | `` | image | Cover-fitted background when Type is Image. |
| `blurAmount` | `0` | 0px to 60px, step 1px | Blur on the background image, px. |
| `backgroundGradientNoise` | `0` | 0% to 100%, step 1% | Film-grain overlay strength. |
| `backgroundOpacity` | `1` | 0 to 1, step 0.05 | Opacity of the whole background layer (0 = transparent ground). |
| `scaleIntensity` | `0.4` | 0 to 1, step 0.05 | Strength of the size change. |
| `borderRadius` | `0` | 0px to 200px, step 1px | Card corner radius in px at 1080. |
| `direction` | `forward` | `forward`, `backward` | Direction of travel. |
| `easing` | `smooth` | `smooth`, `snappy`, `elastic`, `linear` | Easing family for stepped motion. |
| `buttonScale` | `0.065` | 0 to 2, step 0.01 | Button Scale (engine parameter; see the block header comment). |
| `curve` | `5` | 0 to 10, step 0.1 | Curve (engine parameter; see the block header comment). |
| `gap` | `65` | 0px to 130px, step 1px | Spacing between cards. |
| `visible` | `7` | 0 to 14, step 0.1 | Visible (engine parameter; see the block header comment). |
| `highlight` | `100` | 0 to 200, step 1 | Highlight (engine parameter; see the block header comment). |
| `image1` | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1050' viewBox%3D'0 0 1400 1050'%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1046' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 778.05H621.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M286.65 778.05L379.05 662.55L471.45 778.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'552.3' cy%3D'674.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image | Image on card 1 of 8. Any aspect; fitted per mediaFit. |
| `image2` | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'788' viewBox%3D'0 0 1400 788'%3E%3Crect width%3D'1400' height%3D'788' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'788' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'784' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 583.908H529.376' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'12.382857142857144' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M278.004 583.908L347.348 497.228L416.692 583.908Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'477.36800000000005' cy%3D'505.896' r%3D'26.004' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image | Image on card 2 of 8. Any aspect; fitted per mediaFit. |
| `image3` | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1050' height%3D'1400' viewBox%3D'0 0 1050 1400'%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1046' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M189 995.05H558.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M223.65 995.05L316.05 879.55L408.45 995.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'489.3' cy%3D'891.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image | Image on card 3 of 8. Any aspect; fitted per mediaFit. |
| `image4` | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1400' viewBox%3D'0 0 1400 1400'%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 1037.4H744.8' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'22' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M298.2 1037.4L421.4 883.4L544.5999999999999 1037.4Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'652.4000000000001' cy%3D'898.8' r%3D'46.199999999999996' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image | Image on card 4 of 8. Any aspect; fitted per mediaFit. |
| `image5` | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1050' viewBox%3D'0 0 1400 1050'%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1046' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 778.05H621.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M286.65 778.05L379.05 662.55L471.45 778.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'552.3' cy%3D'674.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image | Image on card 5 of 8. Any aspect; fitted per mediaFit. |
| `image6` | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'788' viewBox%3D'0 0 1400 788'%3E%3Crect width%3D'1400' height%3D'788' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'788' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'784' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 583.908H529.376' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'12.382857142857144' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M278.004 583.908L347.348 497.228L416.692 583.908Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'477.36800000000005' cy%3D'505.896' r%3D'26.004' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image | Image on card 6 of 8. Any aspect; fitted per mediaFit. |
| `image7` | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1050' height%3D'1400' viewBox%3D'0 0 1050 1400'%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1050' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1046' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M189 995.05H558.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M223.65 995.05L316.05 879.55L408.45 995.05Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'489.3' cy%3D'891.1' r%3D'34.65' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image | Image on card 7 of 8. Any aspect; fitted per mediaFit. |
| `image8` | `data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1400' viewBox%3D'0 0 1400 1400'%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 1037.4H744.8' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'22' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M298.2 1037.4L421.4 883.4L544.5999999999999 1037.4Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'652.4000000000001' cy%3D'898.8' r%3D'46.199999999999996' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E` | image | Image on card 8 of 8. Any aspect; fitted per mediaFit. |
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="loop-tabs"
data-composition-src="compositions/loop-tabs.html"
data-variable-values='{"mediaFit":"natural","cropAspectRatio":"1:1","backgroundType":"gradient","backgroundGradientStart":"#111111","backgroundGradientEnd":"#444444","backgroundColor":"#0b0b0f","backgroundImage":"","blurAmount":0,"backgroundGradientNoise":0,"backgroundOpacity":1,"scaleIntensity":0.4,"borderRadius":0,"direction":"forward","easing":"smooth","buttonScale":0.065,"curve":5,"gap":65,"visible":7,"highlight":100,"image1":"data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1050' viewBox%3D'0 0 1400 1050'%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1050' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1046' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 778.05H621.6' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'16.5' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M286.65 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></div>
```
## Source
<Accordion title={`loop-tabs.html`}>
```html
<!doctype html>
<html
lang="en"
data-composition-variables='[{"id":"mediaFit","type":"enum","role":"style","label":"Media · Fit","description":"Natural keeps each image&#39;s own ratio; Crop fills the card box at the media aspect below.","default":"natural","options":[{"value":"natural","label":"Natural (original ratio)"},{"value":"crop","label":"Crop"}]},{"id":"cropAspectRatio","type":"enum","role":"style","label":"Media · Aspect","description":"Card aspect used when Fit is Crop.","default":"1:1","options":[{"value":"16:9","label":"16:9"},{"value":"9:16","label":"9:16"},{"value":"1:1","label":"1:1"},{"value":"4:5","label":"4:5"},{"value":"3:2","label":"3:2"},{"value":"3:4","label":"3:4"},{"value":"2:3","label":"2:3"}]},{"id":"backgroundType","type":"enum","role":"style","label":"Background · Type","description":"Gradient (start → end colours), flat Colour, or your own Image.","default":"gradient","options":[{"value":"gradient","label":"Gradient"},{"value":"color","label":"Color"},{"value":"image","label":"Image"}]},{"id":"backgroundGradientStart","type":"color","role":"style","label":"Background · Gradient start","description":"Top colour of the gradient.","default":"#111111"},{"id":"backgroundGradientEnd","type":"color","role":"style","label":"Background · Gradient end","description":"Bottom colour of the gradient.","default":"#444444"},{"id":"backgroundColor","type":"color","role":"style","label":"Background · Color","description":"Flat colour when Type is Color; also the ground under an Image.","default":"#0b0b0f"},{"id":"backgroundImage","type":"image","role":"style","label":"Background · Image","description":"Cover-fitted background when Type is Image.","portrays":["background_image"],"default":""},{"id":"blurAmount","type":"number","role":"style","label":"Background · Blur","description":"Blur on the background image, px.","default":0,"min":0,"max":60,"step":1,"unit":"px"},{"id":"backgroundGradientNoise","type":"number","role":"style","label":"Background · Grain","description":"Film-grain overlay strength.","default":0,"min":0,"max":100,"step":1,"unit":"%"},{"id":"backgroundOpacity","type":"number","role":"style","label":"Background · Opacity","description":"Opacity of the whole background layer (0 = transparent ground).","default":1,"min":0,"max":1,"step":0.05},{"id":"scaleIntensity","type":"number","role":"style","label":"Appearance · Media scale","description":"Strength of the size change.","default":0.4,"min":0,"max":1,"step":0.05},{"id":"borderRadius","type":"number","role":"style","label":"Appearance · Border radius","description":"Card corner radius in px at 1080.","default":0,"min":0,"max":200,"step":1,"unit":"px"},{"id":"direction","type":"enum","role":"style","label":"Animation · Direction","description":"Direction of travel.","default":"forward","options":[{"value":"forward","label":"Forward"},{"value":"backward","label":"Backward"}]},{"id":"easing","type":"enum","role":"style","label":"Animation · Easing","description":"Easing family for stepped motion.","default":"smooth","options":[{"value":"smooth","label":"Smooth"},{"value":"snappy","label":"Snappy"},{"value":"elastic","label":"Elastic"},{"value":"linear","label":"Linear"}]},{"id":"buttonScale","type":"number","role":"style","label":"Template options · Button Scale","description":"Button Scale (engine parameter; see the block header comment).","default":0.065,"min":0,"max":2,"step":0.01},{"id":"curve","type":"number","role":"style","label":"Template options · Curve","description":"Curve (engine parameter; see the block header comment).","default":5,"min":0,"max":10,"step":0.1},{"id":"gap","type":"number","role":"style","label":"Template options · Gap","description":"Spacing between cards.","default":65,"min":0,"max":130,"step":1,"unit":"px"},{"id":"visible","type":"number","role":"style","label":"Template options · Visible","description":"Visible (engine parameter; see the block header comment).","default":7,"min":0,"max":14,"step":0.1},{"id":"highlight","type":"number","role":"style","label":"Template options · Highlight","description":"Highlight (engine parameter; see the block header comment).","default":100,"min":0,"max":200,"step":1},{"id":"image1","type":"image","role":"content","label":"Media · Image 1","description":"Image on card 1 of 8. 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>
<head>
<title>loop-tabs</title>
<meta charset="UTF-8" />
<meta name="viewport" content="width=1080, height=1080" />
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html,
body {
width: 1080px;
height: 1080px;
overflow: hidden;
background: #0b0b0f;
}
#loop-tabs-bg {
position: absolute;
inset: 0;
}
#loop-tabs-stage {
position: absolute;
left: 50%;
top: 50%;
width: 0;
height: 0;
}
.card img {
display: block;
}
.btn {
position: absolute;
border-radius: 50%;
overflow: hidden;
}
.btn img {
display: block;
width: 100%;
height: 100%;
object-fit: cover;
}
.ring {
position: absolute;
border-radius: 50%;
border: 2px solid #fff;
pointer-events: none;
}
</style>
</head>
<body>
<div
id="loop-tabs-root"
data-composition-id="loop-tabs"
data-start="0"
data-width="1080"
data-height="1080"
data-duration="14"
>
<div
id="loop-tabs-loop"
class="clip"
data-start="0"
data-duration="14"
data-track-index="1"
data-layout-allow-overflow
>
<div id="loop-tabs-bg"></div>
<div id="loop-tabs-stage"></div>
</div>
</div>
<script>
// Shared runtime for the the reference tool loop ports. Loaded by every family engine.
// Everything here is a pure function of the HyperFrames variables + t.
//
// Reference constants (measured on the 512x512 preview library, 2026-09-08):
// Marquee planeSize -> 0.3% of frame height per unit (7 variants, all 1.54px/unit @512)
// Marquee gap -> 0.2% of frame height per unit
// 3D perspective -> CSS focal length f = 1000px * (100/perspective) at H=1080
// (3D01/02/08/11: card widths & far-card spacing match to <3%)
// Both are calibrated on a SQUARE canvas; for 16:9 we scale by H. ponytail: if the
// dashboard 16:9 reference shows width-relative scaling, flip REF below to W.
window.RF = (() => {
// Variables are injected by the inline script via RF.use(): HyperFrames wraps INLINE scripts in a
// per-composition scope where getVariables() resolves; this external file only sees the host window.
const V = {},
MEDIA = [];
const use = (vars, media) => {
Object.assign(V, vars || {});
MEDIA.splice(0, MEDIA.length, ...(media || []));
};
const root = document.querySelector("[data-composition-id]");
const W = +root.dataset.width,
H = +root.dataset.height;
const REF = H;
const num = (k, d) => (V[k] !== undefined && V[k] !== "" && !isNaN(+V[k]) ? +V[k] : d);
const str = (k, d) => (V[k] !== undefined && V[k] !== "" ? String(V[k]) : d);
const on = (k, d) => /^(true|on|1)$/i.test(str(k, d ? "on" : "off")); // spec booleans arrive as "true"/"false", enums as on/off
function pick(n) {
n = Math.max(1, Math.min(MEDIA.length, n | 0));
return MEDIA.slice(0, n);
}
// aspect (w/h) a card takes for a media item under mediaFit + cropAspectRatio
function aspect(m, fit, cropAR) {
if (fit === "natural") return m.w / m.h;
const [a, b] = String(cropAR || "1:1")
.split(":")
.map(Number);
return a && b ? a / b : 1;
}
function card(m, w, h, radius) {
const el = document.createElement("div");
el.className = "card";
el.style.cssText = `position:absolute;width:${w}px;height:${h}px;overflow:hidden;border-radius:${radius}px;`;
const img = document.createElement("img");
img.src = m.src;
img.width = Math.round(w);
img.height = Math.round(h);
img.style.cssText = `display:block;width:${w}px;height:${h}px;object-fit:cover;`;
el.appendChild(img);
return el;
}
function background(el) {
// the editor's Background panel: type gradient | color | image, gradient start/end, grain (noise %), opacity, image blur
const type = str("backgroundType", "gradient");
const c = str("backgroundColor", "#0b0b0f");
el.style.background = c;
if (type === "gradient") {
const g1 = str("backgroundGradientStart", "#111111"),
g2 = str("backgroundGradientEnd", "#444444");
el.style.background = `linear-gradient(180deg, ${g1}, ${g2})`;
} else if (type === "image") {
const im = V.backgroundImage,
src = im && typeof im === "object" ? im.url || im.src || "" : im || "";
if (src) {
el.style.background = `${c} url("${src}") center / cover no-repeat`;
const b = num("blurAmount", 0);
if (b > 0) el.style.filter = `blur(${b}px)`;
}
}
el.style.opacity = String(Math.max(0, Math.min(1, num("backgroundOpacity", 1))));
const noise = num("backgroundGradientNoise", 0);
if (noise > 0) {
const g = document.createElement("div");
g.style.cssText = `position:absolute;inset:0;pointer-events:none;mix-blend-mode:overlay;opacity:${((noise / 100) * 0.7).toFixed(3)};background:url("data:image/svg+xml,%3Csvg%20xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg'%20width%3D'256'%20height%3D'256'%3E%3Cfilter%20id%3D'n'%3E%3CfeTurbulence%20type%3D'fractalNoise'%20baseFrequency%3D'0.9'%20numOctaves%3D'3'%20stitchTiles%3D'stitch'%20seed%3D'7'%2F%3E%3CfeColorMatrix%20values%3D'0%200%200%200%200.5%200%200%200%200%200.5%200%200%200%200%200.5%200%200%200%201%200'%2F%3E%3C%2Ffilter%3E%3Crect%20width%3D'256'%20height%3D'256'%20filter%3D'url(%23n)'%2F%3E%3C%2Fsvg%3E") 0 0 / 256px 256px repeat`;
el.appendChild(g);
}
}
const expoInOut = (x) =>
x <= 0
? 0
: x >= 1
? 1
: x < 0.5
? Math.pow(2, 20 * x - 10) / 2
: (2 - Math.pow(2, -20 * x + 10)) / 2;
const frac = (x) => x - Math.floor(x);
return {
V,
use,
W,
H,
REF,
num,
str,
on,
MEDIA,
pick,
aspect,
card,
background,
expoInOut,
frac,
};
})();
</script>
<script>
(async () => {
// Tabs loop family — a hero image (height scaleIntensity*H) above an arc of round buttons; the arc
// holds 2N slots (pitch 22.5deg for 8 images), only `visible` show; per step the arc slides one slot (forward: buttons
// move left, the new active arrives from the right) and the hero swaps by a two-panel 3D turn: the old panel rotates
// away about its bottom-LEFT edge while shrinking, the new one rotates in about its bottom-RIGHT edge while growing;
// panel brightness = cos(angle) (Lambert), ease-out.
// Measured (512 preview, 8 images): hero 208x206 at (256,156) -> 0.4*H tall, bottom at 0.506 H; button centres on a circle
// (255.6,449.1) R 140.8 at 0, +-22.5, +-45, +-67.5deg (7 visible); active button 48 px (~1.4 x 33.3 = buttonScale*H) with a
// light ring, others 31/27/24 px (x0.9 per slot away); active centre y 308 = 0.602 H; arc spacing 55.3 px @ gap 65.
// Step 52.5 f: buttons slide f3.5..8.5; old panel f4.5..9 (w/h ratio -> 13/37/53/68deg at f5..8, height 197/163/134/111);
// new panel f5..15 (64/46/34/26/20/13/10/5deg at f6..13, left edge 306,256,220,196,180,169,163,158,155,154 -> cubic-out),
// luma 50->100 as cos(angle) (44/69/83/90/94 predicted vs 50/66/78/85/91).
// Guesses/knobs: slot count 2N (only the 22.5deg pitch is measured); arc spacing = gap * 0.166% of H, pitch = 22.5deg * curve/5
// (curve and gap cannot be separated on one preview); highlight = ring opacity %; button size falloff 10%/slot;
// panel scale 0.5..1 and the 3D perspective (1000px*H/1080) are eyeballed; easing enum: smooth=cubic-out, snappy, elastic
// (overshooting bezier), linear.
// media list [{src,w,h}] is inlined by build.mjs; HyperFrames scopes inline scripts, so hand both to the shared lib explicitly
const __V = Object.assign(
{},
(window.__hyperframes && window.__hyperframes.getVariables
? window.__hyperframes.getVariables()
: null) || {},
{ loopDuration: 14, loopRepeat: 2, imageCount: 8 },
);
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"data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'1400' height%3D'1400' viewBox%3D'0 0 1400 1400'%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'%230b0b0f'%2F%3E%3Crect width%3D'1400' height%3D'1400' fill%3D'rgba(255%2C255%2C255%2C0.18)'%2F%3E%3Crect x%3D'2' y%3D'2' width%3D'1396' height%3D'1396' fill%3D'none' stroke%3D'rgba(255%2C255%2C255%2C0.14)' stroke-width%3D'4'%2F%3E%3Cpath d%3D'M252 1037.4H744.8' stroke%3D'rgba(255%2C255%2C255%2C0.45)' stroke-width%3D'22' stroke-linecap%3D'round'%2F%3E%3Cpath d%3D'M298.2 1037.4L421.4 883.4L544.5999999999999 1037.4Z' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3Ccircle cx%3D'652.4000000000001' cy%3D'898.8' r%3D'46.199999999999996' fill%3D'rgba(255%2C255%2C255%2C0.45)'%2F%3E%3C%2Fsvg%3E",
];
const __MEDIA = await Promise.all(
["image1", "image2", "image3", "image4", "image5", "image6", "image7", "image8"].map(
async (id, i) => {
const v = __V[id];
const src = (v && typeof v === "object" ? v.url || v.src : v) || __PH[i];
const img = new Image();
img.src = src;
try {
await img.decode();
} catch (e) {}
return { src, w: img.naturalWidth || 1400, h: img.naturalHeight || 1050 };
},
),
);
RF.use(__V, __MEDIA);
const { W, H, REF, num, str, pick, aspect, card, background, frac } = RF;
const DUR = num("loopDuration", 14);
const FIT = str("mediaFit", "natural");
const CROP_AR = str("cropAspectRatio", "1:1");
const HERO = num("scaleIntensity", 0.4) * REF; // hero height
const BTN = num("buttonScale", 0.065) * REF; // button diameter
const SPACING = num("gap", 65) * 0.00166 * REF; // arc length between buttons
const PITCH = (22.5 * num("curve", 5)) / 5; // deg per slot
const R = SPACING / ((PITCH * Math.PI) / 180); // arc radius
const VISIBLE = Math.max(1, num("visible", 7) | 0),
HALF = Math.floor(VISIBLE / 2);
const HIGHL = Math.max(0, Math.min(1, num("highlight", 100) / 100));
const DIR = str("direction", "forward") === "backward" ? -1 : 1;
const RADIUS = (num("borderRadius", 0) * REF) / 1080;
const IMAGES = pick(num("imageCount", 16));
const N = IMAGES.length;
const M = 2 * N;
const HERO_BOTTOM = 0.506 * REF - H / 2; // stage coords (stage origin = frame centre)
const ARC_TOP = 0.602 * REF - H / 2; // active button centre
const ARC_CY = ARC_TOP + R;
const bezier = (x1, y1, x2, y2) => (x) => {
if (x <= 0) return 0;
if (x >= 1) return 1;
let lo = 0,
hi = 1,
s = 0.5;
for (let i = 0; i < 24; i++) {
s = (lo + hi) / 2;
const bx = 3 * (1 - s) * (1 - s) * s * x1 + 3 * (1 - s) * s * s * x2 + s * s * s;
if (bx < x) lo = s;
else hi = s;
}
return 3 * (1 - s) * (1 - s) * s * y1 + 3 * (1 - s) * s * s * y2 + s * s * s;
};
const EASES = {
smooth: [0.33, 1, 0.68, 1],
snappy: [0.4, 0, 0.2, 1],
elastic: [0.34, 1.56, 0.64, 1],
linear: [0, 0, 1, 1],
};
const ease = bezier(...(EASES[str("easing", "smooth")] || EASES.smooth));
const clamp01 = (x) => Math.min(1, Math.max(0, x));
document.getElementById("loop-tabs-loop").dataset.duration = DUR;
background(document.getElementById("loop-tabs-bg"));
const stage = document.getElementById("loop-tabs-stage");
// hero panels: one per image, shown only when active/incoming/outgoing
const panels = IMAGES.map((m) => {
const a = aspect(m, FIT, CROP_AR),
w = HERO * a;
const c = card(m, w, HERO, RADIUS);
c.style.left = -w / 2 + "px";
c.style.top = HERO_BOTTOM - HERO + "px";
c.style.display = "none";
stage.appendChild(c);
return { el: c, w };
});
// buttons: one per slot (2N), image j mod N
const btns = [];
for (let j = 0; j < M; j++) {
const b = document.createElement("div");
b.className = "btn";
const im = document.createElement("img");
im.src = IMAGES[j % N].src;
b.appendChild(im);
stage.appendChild(b);
btns.push(b);
}
const ring = document.createElement("div");
ring.className = "ring";
ring.style.opacity = HIGHL;
stage.appendChild(ring);
const PERSP = (1000 * REF) / 1080;
// step timing (fractions of one step, measured on 52.5 f)
const SLIDE0 = 0.067,
SLIDE1 = 0.162,
OUT0 = 0.086,
OUT1 = 0.171,
IN0 = 0.095,
IN1 = 0.286;
function placePanel(p, angDeg, scale, hinge /* -1 left, +1 right */) {
const c = Math.max(0, Math.cos((angDeg * Math.PI) / 180));
p.el.style.display = "";
p.el.style.transformOrigin = (hinge < 0 ? "0" : "100%") + " 100%";
p.el.style.transform = `perspective(${PERSP}px) rotateY(${-hinge * angDeg}deg) scale(${scale})`; // +x side recedes for rotateY(+)
p.el.style.filter = `brightness(${c})`;
}
function renderAt(t) {
const s = frac(t) * N,
k = Math.floor(s),
u = s - k;
const slide = ease(clamp01((u - SLIDE0) / (SLIDE1 - SLIDE0))); // 0..1 slot shift
const active = k + slide; // continuous active slot (forward: increasing)
// buttons
for (let j = 0; j < M; j++) {
// signed slot distance from the active slot, wrapped to -M/2..M/2
let d = (((j - active) % M) + M) % M;
if (d > M / 2) d -= M;
const b = btns[j];
if (Math.abs(d) > HALF + 0.5) {
b.style.display = "none";
continue;
}
b.style.display = "";
const ang = DIR * d * PITCH,
r = (ang * Math.PI) / 180;
const size =
BTN * (Math.abs(d) < 1 ? 1.4 - 0.4 * Math.abs(d) : 1) * (1 - 0.1 * Math.abs(d));
const x = R * Math.sin(r),
y = ARC_CY - R * Math.cos(r);
b.style.width = b.style.height = size + "px";
b.style.left = x - size / 2 + "px";
b.style.top = y - size / 2 + "px";
b.style.opacity = Math.abs(d) > HALF - 0.5 ? clamp01(HALF + 0.5 - Math.abs(d)) : 1;
b.style.zIndex = Math.round(100 - Math.abs(d) * 10);
}
// highlight ring follows the active slot position
const ringSize = BTN * 1.4 + (6 * REF) / 512;
ring.style.width = ring.style.height = ringSize + "px";
ring.style.left = -ringSize / 2 + "px";
ring.style.top = ARC_TOP - ringSize / 2 + "px";
// hero panels: current = image k (mod N), incoming = k+1
panels.forEach((p) => (p.el.style.display = "none"));
const cur = panels[k % N],
nxt = panels[(k + 1) % N];
const vo = clamp01((u - OUT0) / (OUT1 - OUT0)),
vi = clamp01((u - IN0) / (IN1 - IN0));
if (vo <= 0) placePanel(cur, 0, 1, -DIR);
else if (vo < 1) placePanel(cur, 90 * vo, 1 - 0.5 * vo, -DIR); // rotates away about its outer-bottom corner
if (vi > 0) {
const e = ease(vi);
placePanel(nxt, 90 * (1 - e), 0.5 + 0.5 * e, DIR);
nxt.el.style.zIndex = 5;
}
cur.el.style.zIndex = 4;
}
// one paused linear tween drives t; every frame is recomputed from t alone (seek-safe)
const state = { t: 0 };
const tl = gsap.timeline({ paused: true });
tl.to(state, { t: 1, duration: DUR, ease: "none", onUpdate: () => renderAt(state.t) }, 0);
renderAt(0);
window.__timelines = window.__timelines || {};
window.__timelines["loop-tabs"] = tl;
})();
</script>
</body>
</html>
```
</Accordion>
{/* hf:generated-footer */}
Tagged `loop` `images` `showcase` `gallery` `tabs` `3d`.
Created by Miao Yang.
## Related topics
- [Browse the complete Catalog](/catalog)
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
- [Build a richer composition](/go-further)