Iridescence shader for WebGL

Copy embed gives one block to paste into any page or site builder, no setup. For your own code: add iridescence.js, ittybitty-shader.js, runtime.js, container.js, pointer.js, shape.js, texture.js next to this page. Highlighted values follow the controls.

<!-- Quickest: one element. Size it with CSS; it fills its box. -->
<script type="module" src="./ittybitty-shader.js"></script>
<ittybitty-shader effect="iridescence" style="width: 100%; height: 480px;"></ittybitty-shader>

<!-- Or with JavaScript, for full control: -->
<canvas id="iridescence" aria-hidden="true" style="width: 100%; height: 480px; display: block"></canvas>

<script type="module">
  import { iridescence } from './iridescence.js';

  const canvas = document.getElementById('iridescence');
  const effect = iridescence(canvas, {
    speed: 0.3,
    scale: 1,
    thickness: 0.5,
    range: 0.7,
    intensity: 0.85,
    style: 'oil',
    interactive: true,
    responsiveness: 0.5,
    tilt: 0.6,
    base: '#1b1d2a',
    container: 'off',
    outline: 'itty',
    edgeLight: 0.6,
    rim: 0.6,
    gloss: 0.5,
    innerShadow: 0.5,
    // Performance
    dpr: 1,
    adaptive: true,
  });

  // Later: effect.set(…), effect.pause(), effect.resume(), effect.destroy()
</script>

Iridescence

Code

Details