CSS 3D & Perspective
Phantom Polytope
Glowing sage-green tesseract rotates through itself via dual perspective projection; edges glow hotter by 4D depth. Pointer/click boosts speed.
canvasheavy complexityintense motionpointer
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Worth keeping?
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When to use it
Dark-theme hero backgrounds, math/generative-art showcases, sci-fi or cosmic aesthetic sections needing ambient depth.
When not to
Light backgrounds (hardcoded dark canvas). Contexts needing legible text overlays or strict reduced-motion compliance.
Working with an AI agent
Every component ships agent-ready metadata. An example instruction for this one:
Change glow to warm amber: set the fixed green channel from 210 to 190, raise the red coefficient base from 140 to 200, then slow base speed from 0.012 to 0.007. 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
- base rotation speed (t += 0.012)
- rotation plane speeds (0.31, 0.23, 0.17, 0.27)
- perspective distances (wd=2.4, dd=3.2)
- edge glow color (strokeStyle RGB formula)
- pointer boost cap (Math.min(boost+0.5, 3))
- theme tokens (:root dark defaults + [data-theme=light] overrides)
Keep intact
- IIFE wrapper
- DPR-aware canvas sizing
- visibilitychange pause/resume
- reduced-motion static frame guard
- theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)
Known limitations
- Reduced-motion renders only a single static frame — no fallback animation
- Background hardcoded (#1B1E1A) — must edit both CSS and ctx.fillStyle to retheme
- No aria semantics on canvas element
More CSS 3D & Perspective components
- Rotating CubeGlowing sage-green wireframe cube slowly auto-rotates in CSS 3D with a subtle sine-wave tilt; pointer movement offsets the rotation to follow the cursor.
- Card Deck FanSeven gold-and-mauve playing cards fan open and closed in a sine-wave 3D arc using CSS rotateZ and perspective transform.
- Coverflow RingEight vivid gradient cards orbit in a 3D coverflow ring with CSS perspective and per-card reflections. Pointer X position steers rotation speed.
- Folding Paper4-panel paper accordion folds and unfolds in a zig-zag CSS 3D motion, slowly rotating on a dark green background. Cream front and sage back faces alternate.
- Isometric Blocks3x3 grid of soft lilac CSS 3D cubes bobs in a staggered sine wave on a dark lilac-tinted ground. Three shaded faces per cube simulate isometric lighting.
- Parallax DepthA glowing sun with colored orbiting dots on layered CSS 3D planes that tilt and parallax toward the pointer; auto-orbits until interaction.