Afterglowscreensavers

Voronoi Cell Growth Screensaver

The Voronoi Cell Growth screensaver computes a real live Voronoi tessellation, where seed points grow into cells that expand to tile the entire plane. It is free, runs in your browser, and ESC exits.

Live preview

Press ESC to leave fullscreen. Settings are saved in your browser only.

How the Voronoi Cell Growth screensaver works

The saver scatters seed points and computes the real Voronoi diagram — every pixel is assigned to its nearest seed.

Cells are drawn expanding outward from each seed until every boundary meets its neighbors.

Once the plane is fully tiled, new seed points are scattered and the growth restarts.

This is the same real mathematical structure used to model cell packing and crystal growth.

A worked example

Two neighboring seed points grow toward each other until their expanding cells meet along a shared straight boundary, exactly as Voronoi math predicts.

Settings & tips

Frequently asked questions

Is this based on real math?
Yes — the real Voronoi tessellation, widely used in biology, geography and computer graphics.
Is a key needed?
No — it is a pure local simulation.
Is it free?
Yes — free, no download, in your browser.
Does the pattern repeat?
No — new random seed points are scattered each cycle.

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