{
 "slug": "stone-bridge",
 "triangles": 28612,
 "texture_px": 2048,
 "triangles_light": 14468,
 "texture_px_light": 1024,
 "files": {
  "glb": {
   "name": "stone-bridge.glb",
   "bytes": 1797900
  },
  "blend": {
   "name": "stone-bridge.blend",
   "bytes": 1145561
  },
  "fbx": {
   "name": "stone-bridge.fbx",
   "bytes": 2505212
  },
  "obj": {
   "name": "stone-bridge-obj.zip",
   "bytes": 698634
  },
  "usdz": {
   "name": "stone-bridge.usdz",
   "bytes": 2243259
  },
  "glb_light": {
   "name": "stone-bridge-light.glb",
   "bytes": 1060228
  },
  "fbx_light": {
   "name": "stone-bridge-light.fbx",
   "bytes": 1410076
  }
 },
 "extras": {
  "license": "CC0-1.0",
  "source": "grab3d.com",
  "dimensions_m": "11.720 x 3.580 x 3.209",
  "triangles": 28612,
  "textures": "PBR 2048px: base color, roughness, metallic, normal (baked)",
  "generator": "Created by grab3d",
  "created": "2026-09-26",
  "real_size": "stone arch bridge, 11.6 m long, 3.5 m wide, one segmental arch with 4.6 m span and 1.65 m clearance, 3.4 m tall incl. end pillars",
  "notes": "humpback bridge along X: rubble-stone spandrels in castle greys with a few peach stones, voussoir ring with keystone, stone-lined arch soffit, string course, parapets of dressed blocks with rounded coping, end pillars with ball caps, slab paving; no water modelled, ramp ends and abutments stand on z = 0; the road rises 2.35 m to the crown; no movable parts",
  "set": "Cozy Medieval 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
 }
}