# Mesh gradient

Colour blobs that drift and melt into each other.

## Installation

```sh
pnpm add astro-dither
```

Or copy the source into your project:

```sh
npx astro-dither add effect
```

## Usage

```astro
---
import { DitherEffect } from "astro-dither";
---

<DitherEffect effect="mesh" />
```

Four blobs weighted across the palette range wander slowly. `size` sets each blob's reach and `sway` how far they roam, so small values freeze the mesh and large ones smear it.

The props group like this:

Shape: `size`, `sway`. Colour: `palette`, blob by blob.

## Examples

### Wide melt

Large `size` and `sway` blend the palette into one soft wash.

```astro
<DitherEffect effect="mesh" params={{"size":0.8,"sway":0.35}} />
```

### Confetti

Small `size` keeps each blob distinct over the paper colour.

```astro
<DitherEffect effect="mesh" params={{"size":0.18,"sway":0.2}} />
```

## Props

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| `size` | `number` | 0.42 | Each blob's radius. 0.1 to 1. |
| `sway` | `number` | 0.15 | How far the blobs wander. 0 to 0.5. |
| `palette` | `string[]` | the effect's | 2 to 8 colours, paper first, brightest last. `transparent` works. |
| `cell` | `number` | 2 | Size of one dither cell in CSS pixels, 1 to 8. |
| `matrix` | `2 | 4 | 8 | "noise"` | 8 | The Bayer threshold size, or noise for a random look. |
| `speed` | `number` | 1 | Playback speed. 0 draws one still frame. |
| `class` | `string` | undefined | Classes on the surface element, for size and position. |

## Notes

* Decorative and `aria-hidden`. Put real text on top, not inside it.
* With reduced motion it draws one still frame (at 3s) and stops.
* It pauses when scrolled out of view or when the tab is hidden.
* Shares one WebGL context with every other ordered effect on the page.