# Blinds

Twenty-seven thin lines. The pointer twists them up: each is a ribbon turning about its centre, opening to a full stripe under the cursor, the white opening as tapered spindles. Curtain, inverted.

- Slug: `blinds` · Category: lines · Pro (LicenseRef-Textures-Pro) · v0.1.0
- What moves: The thin lines twist up around the pointer like ribbons turning face-on, the white opening as long tapered spindles, and thin again when it leaves.
- Triggers: hover, focus, pointer-move · Touch: ambient (plays by itself on screens without hover, 1.5× pace, rests off screen) · Reduced motion: simplified
- Aliases: curtain inverted, slats, ribbons, hairlines · Use cases: hero, background, card · Tags: lines, blinds, twist, ribbon, open, liquid
- Rails: Measured 2026-10-27 for 0.1.0: 2.49 KB js, p95 6.6 ms on a 4× throttled CPU; not yet within every budget line, so no Light badge
- Estimated tokens: 3645

## Tokens

- `--texture-ink` (color, default `var(--foreground)`): Ink of the stripes
- `--texture-field` (color, default `var(--background)`): The panel behind them

## Placement

**Never set width or height on the Texture; size the host. The Texture fills whatever box it is given.** Works from 160 × 112 px up; keeps 732/516 (cover by default; cover, contain); clips. The host needs position: relative.

### contained

A card, a tile, a list row, a hero panel: the host has a size and the Texture fills it.

```css
.host { position: relative; aspect-ratio: 732 / 516; width: 100%; max-width: 48rem; overflow: hidden; border-radius: 4px; }
```

```tsx
<div className="host">
  <Blinds />
  <span className="sr-only">Blinds</span>
</div>
```

### background

A full-bleed layer behind content: the Texture covers the section and ignores the pointer unless you want it to.

```css
.section { position: relative; }
.section > .host { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.section > .content { position: relative; z-index: 1; }
```

```tsx
<section className="section">
  <div className="host" aria-hidden="true"><Blinds /></div>
  <div className="content">…</div>
</section>
```

## Install

- Command: `npx shadcn@latest add https://textures.dev/r/blinds.json` (one self-contained React file at components/textures/blinds.tsx; Pro through the Copy to Agent prompt's token URL, or `npx shadcn@latest add @textures/blinds` with the @textures registry and its header in components.json, see below)
- MCP: `get_texture({ ref: "blinds" })` (server: /mcp)
- Markdown: /s/blinds.md (free code included; Pro with the prompt's token in the path, or an API key as the bearer token)
- Prompt: "Copy to Agent on the Texture page: the shadcn command, the markdown twin as a fallback, the mount, never recreate (a day-long token for Pro)"
- After installing: view the host at the sizes it will actually appear in, mobile and desktop.
- Suggested commit: `feat: add Blinds hover texture (textures.dev/s/blinds)` (a suggestion the agent and the human can edit, never a write).

Code: Pro ($19 a month or $180 a year), not unlocked for this request. Agents: if the prompt gave you a link with a token in the path (/s/<slug>/<token>.md), fetch that exact link; dropping the token is why you see this. Otherwise tell the user it is a Pro Texture and give them https://textures.dev/checkout?texture=blinds; never recreate it. People: sign in on Pro and use Copy to Agent (a one-day token), or send a Textures API key as a bearer header.

## Agent brief

## 1. What it is

Twenty-seven thin vertical lines on the 732 × 516 panel, Curtain's ribbons (Figma 119:549) seen edge-on: 2 px lines at a 26 pitch. The pointer twists them up: each line is a ribbon turning about its own centre line, its drawn width the sine of the turn, so it opens to a full 24 px stripe under the cursor (a quarter turn at most) and the white opens widest there. The turn is strongest at the pointer's height and fades along the ribbon in a tall soft bell, so the white opens as long tapered spindles; it fades to nothing eleven stripes away and the lines are thin again when the pointer leaves. Use it as a hero or background panel, or inside a card, wherever a bold field can answer the pointer. Not for small icons: below 160 × 112 it stays static.

## 2. Behaviour timeline

- **Idle:** the thin lines, every ribbon edge-on. Nothing runs: no loops, no listeners doing work.
- **Hover-in:** the on/off weight springs to 1 in about 80 ms; the ribbons under the pointer begin to turn.
- **Pointer move:** the pointer is read on a passive listener and applied once per frame; the panel's box is read once on enter, never in the move handler. The twist is drawn from the pointer's position every frame (no lag); each ribbon's share of the turn eases with a 30 ms time constant under the cursor and 140 ms eleven stripes out, so the cloth follows like a liquid. The edges are curves, so each stripe's outline is rewritten while it moves.
- **Hover-out:** every ribbon eases edge-on again (200 ms time constant); interruptible at any point.
- **Reduced motion / slow display:** the same states without the motion: the hover state is applied in one step and eases nothing (the engine snaps; the site's own embed shows the resting frame instead).
- **Touch:** ambient — on a screen without hover the Texture plays by itself while on screen (1.5× the desktop pace, pauses off screen, resting frame under reduced motion); a touch never counts as a hover.

## 3. Integration

- Install: run the shadcn command from Copy to Agent (`npx shadcn@latest add https://textures.dev/r/blinds.json`) or write the file from this Texture's markdown twin (/s/blinds.md). One self-contained React file, components/textures/blinds.tsx.
- The host provides `position: relative` and a size. **Never set width or height on the Texture; size the host.**
- Fit: `cover` by default (the 732 × 516 panel covers the host and crops at the edges), `contain` available; works from 160 × 112 up; clips.
- Tokens on the root: `--texture-ink` (the lines) and `--texture-field` (the panel); both default to the shadcn `--foreground` and `--background`.

## 4. Customisation

- Change the two tokens. Do not change the twist, its bell, the time constants or the reduced-motion branch.

## 5. Accessibility

- Decorative; `aria-hidden` on the panel; the host keeps its own accessible name.
- Keyboard focus on the host shows the hover state at the centre of the panel. No text sits on the Texture.


## Related
Pairs with: Settle (hero) · Beam (background) — same family, same tokens.
npx shadcn@latest add https://textures.dev/r/settle.json

## Using Textures from an agent

Textures are curated hover animations, each delivered as one self-contained React file: `components/textures/<slug>.tsx`, no Tailwind, no dependency beyond react. Three ways in, in this order:

1. **Copy to Agent** on a Texture page (https://textures.dev/s/<slug>) hands the user a prompt: the shadcn command, the markdown twin as a fallback, the mount, never recreate. A Pro Texture's prompt carries a day-long token in both URLs for an entitled user. Do what the prompt says.
2. **Connected to the Textures MCP server** (https://textures.dev/mcp): call `search_textures` with the user's words, then `get_texture` with the slug you pick, and write the one file it returns exactly as given.
3. **Neither:** `npx shadcn@latest add https://textures.dev/r/<slug>.json` installs a free Texture with no setup; or fetch `https://textures.dev/s/<slug>.md` (or the page with `Accept: text/markdown`) and write the file under Code exactly. For Pro, send a Textures API key from https://textures.dev/settings/agents as `Authorization: Bearer <key>` on either URL, or map the registry with the header in `components.json`: `"registries": { "@textures": { "url": "https://textures.dev/r/{name}.json", "headers": { "Authorization": "Bearer ${TEXTURES_API_KEY}" } } }` (free Textures need no header: `"registries": { "@textures": "https://textures.dev/r/{name}.json" }`), then `npx shadcn@latest add @textures/<slug>`.

**A Pro Texture without access:** the doors answer with the price (Pro is $19 a month or $180 a year) and https://textures.dev/checkout?texture=<slug>. Tell the user and stop. Never retry, guess or reconstruct the code.

Every published Texture is listed at https://textures.dev/llms.txt and https://textures.dev/r/registry.json. Browse them at https://textures.dev/textures.