∞ forever components

Ukiyo-e Wave & Mountain

Seigaiha — Blue Sea Waves

Navy-to-sky arcs tile the canvas in the seigaiha pattern; nested rings breathe with a slow staggered rise like a tide held in cloth.

svglight complexitysubtle motion

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When to use it

Japanese/ukiyo-e themed backgrounds, decorative hero sections, ambient looping tile patterns.

When not to

Light or warm UIs where blue-navy arcs clash. Avoid where text overlays compete with the dense pattern.

Working with an AI agent

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

Change the palette to warm gold by replacing cols with ["#5c2e00","#9c5a00","#d4860a","#f5c842"] and increase arc radius R from 34 to 44. 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

  • arc color palette (cols array)
  • arc radius (R=34)
  • ring count (rings=4)
  • breathe animation duration (3.2s)
  • grid spacing (stepX, stepY)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion guard
  • aria-label on stage div
  • SVG viewBox + preserveAspectRatio
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • SVG arcs appended as raw DOM nodes with no resize cleanup
  • Background color hardcoded in CSS body rule (#f3ead6)

seigaihawavespatternjapanesearcsambient

More Ukiyo-e Wave & Mountain components

  • The Great Wave off KanagawaProcedural Great Wave: layered Prussian-blue swells crest and sway with recursive white foam fingers; a snow-capped Fuji silhouette sits in the background.
  • Fuji at DawnFlat woodblock-style Red Fuji scene: indigo cone with snow cap, sky cycling from night to beni-pink dawn, a sun rising, and three cloud bands drifting across.
  • Sudden Shower on the Great BridgeDiagonal sumi-ink rain streaks fall over a flat arched bridge silhouette; wind angle shifts slowly via sine wave, evoking ukiyo-e's woodblock print.
  • Cranes Crossing the MoonThree brush-contour cranes beat their wings along an S-curve past a pale moon on parchment. Staggered formation, wings driven by sine wave.
  • The One Living LineSumi brush traces a Lissajous path on washi canvas; stroke swells when slow and thins at speed, with ink fade and dry-brush scatter.
  • Wind among the LeavesOchre leaves and pale paper scraps drift across a sky-to-washi gradient, steered by a sine-based wind field with gentle undulating stream lines.