Generative Geometry

Circuit Routing

Glowing green circuit traces auto-route between grid pads at 45/90 degrees with travelling light pulses; traces grow, hold, then fade in a continuous loop.

canvasheavy complexitymoderate motionpointer

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Live demo — the real component, running in a sandbox. One self-contained HTML file, zero dependencies. Open it on the canvas →

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When to use it

Tech/electronics hero backgrounds, PCB or hardware product pages, dark-mode ambient displays needing a coded aesthetic.

When not to

Light-background UIs (background hardcoded dark green). Contexts where constant trace spawning competes with foreground content.

Working with an AI agent

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

Change accent color from green to amber by setting ACC='#ffb830' and updating the rgba base strings in drawPath and the pad fill to match. 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

accent color (ACC='#5effb8')
grid cell size divisor (Math.min(W,H)/26)
max active nets cap (16)
pad density (cols*rows*0.10)
pulse travel speed (cell*0.12)
trace grow speed (cell*0.16)
routing cadence (new trace every ~0.5 s; 12-trace pre-roll)
theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

IIFE wrapper
prefers-reduced-motion guard with static fallback
visibilitychange pause/resume
occ occupancy grid (prevents trace collisions)
theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

Greedy router can fail to complete long routes in dense grids, silently dropping the net
Background color hardcoded in CSS and canvas fill — must change both to retheme
No aria semantics on canvas

circuitgenerativecanvasroutinggridpulsepcbambient

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