Cosmic & Space
Ringed Planet Rotate
Amber gas giant with tilted Saturn-like rings slowly rotates over a twinkling starfield; pointermove adjusts ring tilt and light angle dynamically.
canvasmedium complexitymoderate motionpointer
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Worth keeping?
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When to use it
Space/sci-fi hero backgrounds, ambient screensavers, dark-mode landing sections needing slow cosmic motion.
When not to
Light backgrounds (hardcoded dark canvas). Contexts needing legible text overlays — planet occupies center stage.
Working with an AI agent
Every component ships agent-ready metadata. An example instruction for this one:
Change the planet palette to icy blue by replacing bands array with ['#7ec8e3','#5ba8c4','#a8dff0','#3d8fa8','#b0e0f5'] and update the radial gradient stops to match.
Safe to edit
- band colors (bands array)
- ring segment radii and opacity (segs array)
- rotation speed (rot += 0.006)
- tilt range from pointermove (0.22 + offset * 0.5)
- planet size (R = Math.min(W,H)*0.2)
- star count (55)
Keep intact
- IIFE wrapper
- prefers-reduced-motion guard (reduce flag stops rot increment)
- visibilitychange stop/start
- DPR-aware canvas sizing
Known limitations
- Background color hardcoded in CSS (#0a0710) — must edit to change from dark purple-black
- Ring tilt resets to default 0.4 only on reload; no mouse-leave reset
- reduce flag freezes rotation but still runs rAF loop drawing a single static frame repeatedly
More Cosmic & Space components
- Orbiting Planet SystemFour glowing planets orbit a radiant sun on tilted elliptical rings with depth-sorted rendering; the system drifts subtly toward the pointer.
- Black-hole Accretion Swirl110 heat-colored particles spiral inward across a tilted accretion disk toward a glowing event horizon; pointer movement boosts swirl speed.
- Twinkling Starfield115 multicolor stars twinkle via sine waves; sparkle crosses appear on larger stars; stars brighten near cursor. Static fallback for reduced-motion.
- Spiral Galaxy Rotate115 stars form a two-armed spiral galaxy rotating around a violet radial-gradient core; pointer move briefly doubles spin speed.
- Comet Streak LoopCyan and violet comets with glowing heads and gradient tails streak diagonally across a twinkling dark starfield; click spawns an extra comet (up to 5).
- Constellation Connect46 drifting star nodes auto-connect with faint magenta lines when close; cursor draws lines to nearby stars and brightens them on hover.