# Impossible Segmented Ring

- Author: Leonxlnx
- Card: Creator prompt
- Theme: Objects & products
- Stack: Not rebuilt
- Interaction: Pointer
- Licence: Credited link (Shared publicly by the author; full text with credit, removed on request)
- Verified: not yet
- Original post: https://github.com/Leonxlnx/mybuilds/blob/HEAD/optical-illusion/prompt.md

## Original prompt

```text
Create an interactive 3D optical illusion — an "impossible torus ring" using Three.js with an orthographic camera to create the illusion of impossible geometry. 

The ring should be made of 12 separate segmented blocks arranged in a torus shape with small gaps between them. Each block has a dot-textured surface and visible wireframe edges.

**Interaction:**
- On hover: the hovered block scales up (pop-out effect), all others dim and shrink slightly, and the entire torus smoothly stops rotating.
- On click: the hovered block detaches from the ring, flies out toward the camera with a GSAP animation, scales up 2.2x, and a glassmorphism UI card panel appears alongside it with a backdrop blur overlay.
- Close button or overlay click: the block flies back to its exact original position in the ring (even if the ring rotated while the panel was open), the UI closes, and the rotation resumes smoothly.

**Technical requirements:**
- Orthographic camera for the "impossible geometry" illusion
- Dot texture generated via Canvas (procedural, no external images)
- Cloned materials per block for independent dimming
- GSAP for all UI and 3D animations (fly-out, fly-back, card reveal)
- `scene.attach()` / `torusGroup.attach()` for seamless parent-switching during animations
- Smooth speed interpolation for rotation start/stop
- Ultra-clean glassmorphism UI: dark glass card with image, tag, title, description, and animated close button
- Fully responsive (mobile: card centered, desktop: card offset)
- Pure black background (#000000)
```

Not rebuilt by 3dmotion yet. Credit stays with Leonxlnx.

Prompt by Leonxlnx (https://github.com/Leonxlnx/mybuilds/blob/HEAD/optical-illusion/prompt.md) via 3dmotion.io/e/impossible-segmented-ring