forever components

Generative Geometry

Voronoi Shatter

14 drifting sites partition the canvas into cool-blue Voronoi mosaic cells; moving the pointer nudges the nearest site toward the cursor.

canvasmedium complexitymoderate motionpointer

Open on the canvas to copy the code → Free account · 3 copies a day · membership goes unlimited

Live demo — the real component, running in a sandbox. One self-contained HTML file, zero dependencies. Open it on the canvas →
Worth keeping? Votes steer what gets built next — sign in to cast one, free to read

When to use it

Dark-theme hero backgrounds, generative art showcases, geometric texture layers behind UI.

When not to

Light backgrounds (hardcoded dark navy). Low-end mobile — per-frame cell loop scales with canvas area.

Working with an AI agent

Every component ships agent-ready metadata. An example instruction for this one:

Change site count to 20 by setting N=20, shift hue range to warm tones (h:rnd(20,50)), slow drift by changing the 0.004 multiplier to 0.002. Theme: dark tokens live in :root, the light variant in :root[data-theme="light"]; ?theme=light or a {type:'forever:theme'} postMessage switches at runtime.

Safe to edit

  • site count (N=14)
  • hue range per site (rnd(180,210))
  • drift speed multiplier (0.004)
  • cell resolution divisor (s/64)
  • lightness formula (li base 30 + sine offset)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion guard (static single frame fallback)
  • visibilitychange pause
  • DPR-aware canvas sizing
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Background color hardcoded in both CSS and canvas fillRect — must change both to retheme
  • Pointer nudge captures md/mdy variables but never uses them (dead code)
  • Cell loop is O(N*cells) — large N or small cell size tanks perf on large screens

voronoigenerativecanvasmosaicpointergeometryambient

More Generative Geometry components

  • Auto-MazeDepth-first maze carves itself wall by wall on a dark grid with shifting hue; a bright dot marks the active cell. Resets with a new color on completion.
  • Truchet Tiles8x8 grid of rainbow quarter-arc Truchet tiles that flip orientation in slow sine waves, weaving shifting interlocked curves across a dark background.
  • SpirographA hypotrochoid spirograph traced progressively on canvas with a shifting hue; each cycle completes then resets with new random radii and color.
  • L-System PlantAn L-system fractal plant grows branch by branch from the canvas bottom, swaying gently; clicking triggers a wobble and regrows a randomized plant.
  • Rotating Mandala12-fold mandala of 5 nested polygon rings that counter-spin, breathe in scale, and cycle through lilac-gold hues. Tap adds a spin impulse.
  • Moiré InterferenceThree drifting concentric ring sets in cyan, pink, and green blend additively to create shifting moiré patterns. Pointer steers one ring center.