Cosmic & Space
Aurora Curtain Flow
7 green and magenta aurora curtains ripple above a dark planetary limb; pointer nudges the bands sideways, click jolts them.
canvasmedium complexitymoderate motionpointer
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Worth keeping?
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When to use it
Dark-mode hero backgrounds, space/sci-fi themes, ambient screensaver displays, atmospheric loading states.
When not to
Light backgrounds (hardcoded dark theme). Content-heavy layouts where constant motion competes with reading.
Working with an AI agent
Every component ships agent-ready metadata. An example instruction for this one:
Change front curtain color to electric blue by replacing colA=[61,255,160] with colA=[0,180,255] and colB=[120,255,210] with colB=[80,220,255] in drawCurtain.
Safe to edit
- curtain count (CUR=7)
- front curtain color (colA/colB arrays in drawCurtain)
- pointer nudge strength (nudge*W*0.06 multiplier)
- planetary limb position (limbY=H*0.86)
- star count (70)
- curtain sway amplitude (amp range 0.04+0.07)
Keep intact
- DPR-aware canvas sizing and setTransform
- visibilitychange pause/start guards
- reduced-motion static fallback (scene(2.3))
- IIFE wrapper
Known limitations
- Background and planetary limb colors are hardcoded — requires CSS and canvas edits to retheme
- No aria role on canvas element
- Click jolt decays quickly via nudge*=0.95 per frame
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).
- Ringed Planet RotateAmber gas giant with tilted Saturn-like rings slowly rotates over a twinkling starfield; pointermove adjusts ring tilt and light angle dynamically.