Generative Geometry
Rotating Mandala
12-fold mandala of 5 nested polygon rings that counter-spin, breathe in scale, and cycle through lilac-gold hues. Tap adds a spin impulse.
canvasmedium complexitymoderate motionclickmobile-ready
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When to use it
Ambient backgrounds for creative or generative art contexts. Hero sections needing mesmerizing looping visuals with subtle user interactivity.
When not to
Light-background UIs (background hardcoded dark lilac-charcoal). Layouts where continuous motion competes with foreground text.
Working with an AI agent
Every component ships agent-ready metadata. An example instruction for this one:
Change symmetry from 12 to 8 by setting sym=8, increase ring count to 7, and shift hue base by changing the formula to (t*0.02+ring*45+20)%360. 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
- symmetry count (sym=12)
- ring count (ring<5)
- rotation speed (t*0.0003 multiplier)
- hue cycle rate (t*0.02+ring*55)
- breathe depth (Math.sin*0.06)
- polygon sides formula (3+ring)
- theme tokens (:root dark defaults + [data-theme=light] overrides)
Keep intact
- IIFE wrapper
- prefers-reduced-motion guard (reduce branch)
- visibilitychange pause/resume
- DPR-aware canvas sizing
- theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)
Known limitations
- Background color hardcoded in CSS (#1B191D) — must edit to change from dark lilac-charcoal
- Reduced-motion renders a single static frame only
- Spin impulse on pointerdown decays (spin*=0.96) — no persistent user control
More Generative Geometry components
- Voronoi Shatter14 drifting sites partition the canvas into cool-blue Voronoi mosaic cells; moving the pointer nudges the nearest site toward the cursor.
- 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.
- Moiré InterferenceThree drifting concentric ring sets in cyan, pink, and green blend additively to create shifting moiré patterns. Pointer steers one ring center.