∞ forever components

Op Art & Moire

Dot Grid Shift

Offset dot lattice with rows staggered half a cell; dot sizes swell in phase waves producing illusory diagonal moire bands that travel slowly across the field.

canvasmedium complexitymoderate motion

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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

Dark-mode hero backgrounds, op-art or generative-art showcases, ambient looping screensavers needing a hypnotic geometric pattern.

When not to

Light-background UIs (background hardcoded near-black). Contexts with legible text overlays — shifting bands compete with reading.

Working with an AI agent

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

Change the travel speed from 0.6 to 0.3 for a slower drift, swap dot color to warm amber by setting ctx.fillStyle to '#f5c842', and increase MAXCELLS to 3600 for a denser grid. 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

  • travel speed (t*0.6)
  • primary dot color (#f2f2f2)
  • secondary lattice opacity (0.10)
  • diagonal band slope k (0.55)
  • cell size range (11..22 logical px)
  • phase frequency multipliers (0.9 and 1.18)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • MAXCELLS budget + auto-coarsen loop (critical for perf)
  • typed Float32Array px/py/ph pre-computation
  • visibility pause/resume guards
  • prefers-reduced-motion single-frame fallback
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Background hardcoded near-black — must edit CSS to change
  • No pointer interactivity; purely passive
  • MAXCELLS cap (2400) limits density on large viewports to avoid arc overdraw

op-artdotsmoiregridcanvasblack-and-whiteambient

More Op Art & Moire components

  • Moire DriftTwo concentric ring grids drift apart with opposed phase, producing slow-shifting moire interference fringes via canvas lighter/difference compositing.
  • Bulge GridA 22x22 white line grid on black warps radially outward as an invisible lens drifts on a slow lissajous path; a faint offset twin grid creates moire shimmer.
  • Concentric Pulse26 white rings march outward from center in a ~6s loop; a second scaled field produces slow moire interference fringes on a dark background.
  • Wave ColumnsVertical B&W stripe columns undulate via detuned sine waves, creating a woven fabric ripple with a central bulge illusion and moire interference.
  • Checker WarpA black-and-white checkerboard bends around a breathing lens at the center, slowly rotating and drifting for a hypnotic op-art illusion.
  • Line Illusion64 horizontal lines kink at a center crease with differential shading, creating a breathing 3D fold illusion of two angled sheets.