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gradient-gl

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gradient-gl

Tiny WebGL library for procedural gradient animations. Deterministic. Seed-driven.

1.4.2
latest
Source
npmnpm
Version published
Weekly downloads
83
40.68%
Maintainers
1
Weekly downloads
 
Created
Source
demo

Deterministic WebGL Gradient Animations

Playground

Tiny WebGL library for
Procedural Gradient Animations
Deterministic - Seed-driven

Usage Examples
CDN • Vanilla • React • Vue
source in ./examples

🖼️ Showcase Gallery 🌀

Share your seeds & creations!

Easiest Usage: One-Liner Script Tag

SeedScript

<script type="module" src="https://unpkg.com/gradient-gl?seed=a2.eba9"></script>

read more

Usage

npm install gradient-gl

import gradientGL from 'gradient-gl'

// Mounts to <body>
gradientGL('a2.eba9')

// Mounts inside #app
gradientGL('a2.eba9', '#app')

// Access shader program if needed
const program = await gradientGL('a2.eba9')

Mounting Behavior

  • No selector: creates and styles a <canvas> in <body>
  • Selector to an element: creates and styles a <canvas> inside it
  • Selector to a <canvas>: uses it directly, no styles or DOM changes

Styles are overridable.

Vite Configuration

export default {
  build: {
    target: 'esnext',
  },
}

CDN

UNPKG

<script type="module">
    import gradientGL from 'https://unpkg.com/gradient-gl'
    gradientGL('a2.eba9')
</script>

ESM

<script type="module">
    import gradientGL from 'https://esm.sh/gradient-gl'
    gradientGL('a2.eba9')
</script>

SeedScript Usage

    <!-- Latest with default mounting point -->
<script type="module" src="https://unpkg.com/gradient-gl?seed=a2.eba9"></script>

    <!-- optionally pin to a version @x.x.x -->
<script type="module" src="https://unpkg.com/gradient-gl@1.4.1?seed=a2.eba9"></script>

    <!-- optionally set the mount selector -->
        <!-- mount inside the <main> tag -->
<script type="module" src="https://unpkg.com/gradient-gl?seed=a2.eba9&selector=main"></script>
        <!-- mount inside the .wrapper>content -->
        <!-- note: any valid css selector can be used -->
<script type="module" src="https://unpkg.com/gradient-gl?seed=a2.eba9&selector=.wrapper>.content"></script>
        <!-- mount inside the #app -->
        <!-- note hash needs to be escaped as %23 -->
        <!-- #app → %23app  -->
<script type="module" src="https://unpkg.com/gradient-gl?seed=a2.eba9&selector=%23app"></script>

Seed Format

{shader}.{speed}{hue}{sat}{light}

  • Shader: [a-z][0-9] (e.g., a2)
  • Options: [0-9a-f] (hex values)

Explore and generate seeds in the playground

Performance

Animated Gradient Background Techniques

(Slowest → Fastest)

  • SVG – CPU-only, DOM-heavy, poor scaling, high memory usage
  • Canvas 2D – CPU-only, main-thread load, imperative updates
  • CSS – GPU-composited, limited complexity, best for static
  • WebGL – GPU-accelerated, shader-driven, optimal balance
  • WebGPU – GPU-native, most powerful, limited browser support

[!NOTE] While WebGPU is technically the fastest, WebGL remains the best choice for animated gradients due to its maturity, broad support, and optimal performance/complexity ratio.

TODO: Interactive benchmark app

License

MIT

Keywords

webgl
gradient
animation
background
shader
seed

FAQs

Package last updated on 29 Jun 2025

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