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Sugar Glass

Caramelized sugar glass with Voronoi fracture patterns and golden light bleeding through cracks.

What is Sugar Glass?

Sugar Glass is a free WebGL web effect in the TappyPrism library. Caramelized sugar glass with Voronoi fracture patterns and golden light bleeding through cracks. It is rendered on the GPU by a fragment shader, so it costs almost nothing on the CPU and works well as a full-screen background. It ships as a single self-contained HTML file (sugar-glass.html) with zero dependencies — no npm package, no framework, no build step. It exposes 2 live parameters — Crack Speed, Light Bleed — adjustable in the browser or at runtime.

Parameters

ParameterKeyRangeDefault
Crack SpeedCRACK_SPEED0.1 – 20.5
Light BleedLIGHT_BLEED0.3 – 21

How to add Sugar Glass to your page

  1. Download the standalone file sugar-glass.html and copy its source into your project.
  2. Or embed it as a background iframe:
    <iframe src="https://prism.tappypotato.com/fx/sugar-glass.html" style="position:fixed;inset:0;width:100%;height:100%;border:0;z-index:-1" title="Sugar Glass"></iframe>
  3. Tune it at runtime with postMessage:
    iframe.contentWindow.postMessage({ type: 'param', name: 'CRACK_SPEED', value: 0.5 }, '*');

Frequently asked questions

What is Sugar Glass?

Sugar Glass is a free WebGL web effect in the TappyPrism library. Caramelized sugar glass with Voronoi fracture patterns and golden light bleeding through cracks. It is rendered on the GPU by a fragment shader, so it costs almost nothing on the CPU and works well as a full-screen background. It ships as a single self-contained HTML file (sugar-glass.html) with zero dependencies — no npm package, no framework, no build step. It exposes 2 live parameters — Crack Speed, Light Bleed — adjustable in the browser or at runtime.

How do I add Sugar Glass to my website?

Download the standalone file at https://prism.tappypotato.com/fx/sugar-glass.html and copy its source into your page, or embed it as a background iframe: <iframe src="https://prism.tappypotato.com/fx/sugar-glass.html" style="position:fixed;inset:0;width:100%;height:100%;border:0;z-index:-1" title="Sugar Glass"></iframe>. Tune it live with postMessage, e.g. iframe.contentWindow.postMessage({ type: 'param', name: 'CRACK_SPEED', value: 0.5 }, '*').