{
 "slug": "steam-train",
 "triangles": 44282,
 "texture_px": 2048,
 "triangles_light": null,
 "texture_px_light": null,
 "files": {
  "glb": {
   "name": "steam-train.glb",
   "bytes": 2301144
  },
  "blend": {
   "name": "steam-train.blend",
   "bytes": 1653950
  },
  "fbx": {
   "name": "steam-train.fbx",
   "bytes": 3897964
  },
  "obj": {
   "name": "steam-train-obj.zip",
   "bytes": 1802027
  },
  "usdz": {
   "name": "steam-train.usdz",
   "bytes": 3129946
  }
 },
 "extras": {
  "license": "CC0-1.0",
  "source": "grab3d.com",
  "dimensions_m": "2.880 x 11.200 x 3.890",
  "triangles": 44282,
  "textures": "PBR 2048px: base color, roughness, metallic, normal (baked)",
  "generator": "Created by grab3d",
  "created": "2026-09-26",
  "real_size": "steam locomotive with tender on a short track, approx. 11 x 2.8 x 4.3 m (L x W x H incl. track), locomotive 6.6 m, driving wheel diameter 1.2 m, standard gauge 1435 mm",
  "notes": "front faces -Y; 12 wheels are separate objects with origin on the axle (rotate around local X to roll); coupling rods (steam-train_coupling_rod_l/_r) are separate objects with origin on the middle crank pin: keep their orientation and move the origin on a circle of radius 0.30 m around the middle driving axle in step with the wheel rotation (left side leads the right side by 90 deg); the track (steam-train_track) is a separate object, rail top at 0.30 m; opaque tinted windows, no interior; neutral star emblem, no brand, no text",
  "set": "Cozy Vehicles 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
 }
}