# GPT Image Hub prompt

## Top-Down Binary Collision Mask
- URL: https://www.gptimagehub.com/library/top-down-binary-collision-mask
- Generator URL: https://www.gptimagehub.com/generate?promptId=oss-ym-g2-29540
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Flibrary%2Ftop-down-binary-collision-mask
- Category: Game Asset
- Model: seedream-5-0-lite
- Aspect ratio: 1:1
- Style: illustration
- Tags: collision-mask, binary, top-down, game-asset, dungeon-map, pixel-mask, level-design
- Updated: 2026-10-26T22:09:03.098Z
- Created: 2026-10-26T22:09:03.098Z

Creates a strict 1-bit black and white traversable map mask for 2D game collision layouts. Adjust the central silhouette or side branch descriptions to alter room shapes.

### Full prompt
```text
Pure black-and-white binary walkable-area mask for a top-down video game collision map, 2D orthographic view. Solid pure black background with a single connected irregular white silhouette representing traversable ground in a [fantasy dungeon or island layout]. The central mass features a broad vertical corridor with jagged pixel-stepped edges and six distinct branching structures: a large oval platform on the upper left connected by a narrow neck, a smaller mushroom-shaped platform on the lower left reached via a winding path, a jagged crescent protrusion on the upper left edge, an upper-right irregular chamber containing three narrow vertical black cutouts, a large black hook-shaped obstacle encroaching from the right-center, and a rounded lower-right chamber partially partitioned by black negative space. Style constraints: strictly two colors (#FFFFFF pure white and #000000 pure black), no grayscale, no antialiasing, no shading, no lighting, no texture, no perspective, no text; crisp pixelated mask edges suitable for SDF or collision mesh extraction.
```