{
 "slug": "roundabout",
 "triangles": 46318,
 "texture_px": 6144,
 "triangles_light": 28834,
 "texture_px_light": 1024,
 "files": {
  "glb": {
   "name": "roundabout.glb",
   "bytes": 22404324
  },
  "blend": {
   "name": "roundabout.blend",
   "bytes": 21533586
  },
  "fbx": {
   "name": "roundabout.fbx",
   "bytes": 23181340
  },
  "obj": {
   "name": "roundabout-obj.zip",
   "bytes": 21226859
  },
  "usdz": {
   "name": "roundabout.usdz",
   "bytes": 23338440
  },
  "glb_light": {
   "name": "roundabout-light.glb",
   "bytes": 2872408
  },
  "fbx_light": {
   "name": "roundabout-light.fbx",
   "bytes": 3970780
  }
 },
 "extras": {
  "license": "CC0-1.0",
  "source": "grab3d.com",
  "dimensions_m": "35.400 x 35.400 x 1.461",
  "triangles": 46318,
  "generator": "Created by grab3d",
  "created": "2026-10-25",
  "real_size": "35.4 x 35.4 m roundabout (3 x 3 kit grid): 26 m outer kerb diameter, 6.5 m circulatory carriageway, 1.34 m granite sett apron behind a 160 mm mountable kerb, 9.7 m central island with raised kerb, lawn mound and shrubs; four arms in the road-segment cross-section (7.5 m carriageway, 150 mm granite kerbs, 2.0 m footways) with 5.0 m entry radii",
  "notes": "Arms end at the seams x = +-17.7 m and y = +-17.7 m with the exact road-segment cross-section (carriageway |t| <= 3.75, kerb 3.75-3.9, footway 3.9-5.9, slab rows every 0.5 m). Place road-segment-straight centres at (+-23.6, 0) unrotated and (0, +-23.6) rotated 90 deg (road-segment: (+-22.7, 0) / (0, +-22.7)). Right-hand traffic, anticlockwise circulation; give-way line (0.5 m blocks) and shark teeth on each entry lane, no text. Asphalt uses a unique 35.4 m map: wheel tracks follow the ring and the arms, gutters follow every kerb radius, phase-matched to road-segment at all four seams. Corner squares are lawn behind an 80 mm edging. Pivot on the carriageway surface (z = 0); footway +0.15 m, base -0.20 m. No bottom faces.",
  "set": "Urban Street Kit"
 },
 "origin": {
  "method": "procedural",
  "detail": "Built procedurally with Blender scripts. The scripts were written with the help of an AI coding assistant. No generative AI model produced the geometry or textures directly.",
  "ai_content": false,
  "ai_assisted_code": true
 }
}