∞ forever components

Backgrounds

Starfield Warp

Stars streak outward from center as cyan/purple/blue light trails simulating hyperspace warp. Auto-spawning keeps density constant on any viewport.

canvasmedium complexityintense motion

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When to use it

Dark-mode hero backgrounds, sci-fi or space themes, loading screens, immersive ambient backdrops.

When not to

Light-background UIs (background hardcoded near-black). Layouts where streaking motion competes with readable text overlays.

Working with an AI agent

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

Change the tint palette to warm gold/orange by replacing tint() return values: t>0.66 to "rgba(255,220,80," and t>0.33 to "rgba(255,140,40," then increase star density by changing the divisor from 1600 to 900.

Safe to edit

  • star density divisor (1600 in Math.round((w*h)/1600))
  • speed range (0.4 + Math.random()*1.6)
  • trail color palette (tint() function)
  • trail line width cap (2.4)
  • motion blur alpha (0.35 in rgba fill)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion static fallback
  • visibilitychange pause via runLoop
  • DPR-aware canvas sizing with ResizeObserver

Known limitations

  • Background color hardcoded in CSS and JS — must change both to shift from near-black
  • Star count caps at 220 — large 4K displays may look sparse
  • No pointer interaction — purely passive

starswarphyperspacebackgroundcanvasstreaksspaceambient

More Backgrounds components

  • Aurora BorealisThree blurred, screen-blended gradient ribbons drift and skew over a near-black background, simulating northern lights in blush, cream, and rose.
  • Mesh GradientFour blurred radial blobs in cream, gold, and tan drift and scale on a dark background with screen blend mode, creating a soft animated mesh gradient.
  • Particle Constellation18–60 lilac/tan/mauve particles drift and bounce; nearby pairs connect with fading lines, forming a shifting constellation network on a dark background.
  • Film GrainSVG feTurbulence noise jitters over a dark radial-tinted base with scrolling scanlines and a blinking magenta REC dot for an analog film look.
  • Digital RainCyan katakana and hex glyphs fall in columns down a dark canvas, leaving fading trails; occasional bright white leading chars evoke the Matrix effect.
  • Layered WavesThree SVG wave layers in iris, cyan, and dark slide horizontally at different speeds over a deep blue-gradient sky, creating a parallax depth effect.