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Luminous Silt

Dense field of 18K particles creating soft color clouds through alpha accumulation over a noise-driven flow field.

What is Luminous Silt?

Luminous Silt is a free Canvas 2D web effect in the TappyPrism library. Dense field of 18K particles creating soft color clouds through alpha accumulation over a noise-driven flow field. It is drawn with the Canvas 2D API, which trades some GPU efficiency for the widest possible browser and device support. It ships as a single self-contained HTML file (luminous-silt.html) with zero dependencies — no npm package, no framework, no build step. It exposes 2 live parameters — Drift Speed, Density — adjustable in the browser or at runtime.

Parameters

ParameterKeyRangeDefault
Drift SpeedDRIFT_SPEED0.1 – 20.6
DensityDENSITY0.3 – 21

How to add Luminous Silt to your page

  1. Download the standalone file luminous-silt.html and copy its source into your project.
  2. Or embed it as a background iframe:
    <iframe src="https://prism.tappypotato.com/fx/luminous-silt.html" style="position:fixed;inset:0;width:100%;height:100%;border:0;z-index:-1" title="Luminous Silt"></iframe>
  3. Tune it at runtime with postMessage:
    iframe.contentWindow.postMessage({ type: 'param', name: 'DRIFT_SPEED', value: 0.6 }, '*');

Frequently asked questions

What is Luminous Silt?

Luminous Silt is a free Canvas 2D web effect in the TappyPrism library. Dense field of 18K particles creating soft color clouds through alpha accumulation over a noise-driven flow field. It is drawn with the Canvas 2D API, which trades some GPU efficiency for the widest possible browser and device support. It ships as a single self-contained HTML file (luminous-silt.html) with zero dependencies — no npm package, no framework, no build step. It exposes 2 live parameters — Drift Speed, Density — adjustable in the browser or at runtime.

How do I add Luminous Silt to my website?

Download the standalone file at https://prism.tappypotato.com/fx/luminous-silt.html and copy its source into your page, or embed it as a background iframe: <iframe src="https://prism.tappypotato.com/fx/luminous-silt.html" style="position:fixed;inset:0;width:100%;height:100%;border:0;z-index:-1" title="Luminous Silt"></iframe>. Tune it live with postMessage, e.g. iframe.contentWindow.postMessage({ type: 'param', name: 'DRIFT_SPEED', value: 0.6 }, '*').