{
 "slug": "storm-drain",
 "triangles": 3258,
 "texture_px": 1024,
 "triangles_light": null,
 "texture_px_light": null,
 "files": {
  "glb": {
   "name": "storm-drain.glb",
   "bytes": 1437580
  },
  "blend": {
   "name": "storm-drain.blend",
   "bytes": 1426316
  },
  "fbx": {
   "name": "storm-drain.fbx",
   "bytes": 1646604
  },
  "obj": {
   "name": "storm-drain-obj.zip",
   "bytes": 1447441
  },
  "usdz": {
   "name": "storm-drain.usdz",
   "bytes": 1659712
  }
 },
 "extras": {
  "license": "CC0-1.0",
  "source": "grab3d.com",
  "dimensions_m": "0.500 x 0.500 x 0.400",
  "triangles": 3258,
  "generator": "Created by grab3d",
  "created": "2026-09-26",
  "real_size": "500 x 500 mm gully top (EN 124 style), 433 x 433 x 50 mm bar grate with 16 slots 24 mm wide, 160 mm frame depth, 400 x 400 mm concrete shaft, visible depth 0.35 m",
  "notes": "Pivot on the road surface: top of grate and frame at z = 0, everything else below (model base at -0.40 m). Slots run lengthwise (X) along the gutter. Shaft has a floor with sludge and leaves and a DN 150 outlet pipe, so the slots never show empty space. Cut a 0.50 x 0.50 m hole in the road mesh to insert it. Generic, no maker marks. Cast iron: dark sides, traffic-polished top.",
  "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
 }
}