{
 "slug": "gravity-well",
 "triangles": 36264,
 "texture_px": 2048,
 "triangles_light": 18611,
 "texture_px_light": 1024,
 "files": {
  "glb": {
   "name": "gravity-well.glb",
   "bytes": 1641192
  },
  "blend": {
   "name": "gravity-well.blend",
   "bytes": 1394546
  },
  "fbx": {
   "name": "gravity-well.fbx",
   "bytes": 2925500
  },
  "obj": {
   "name": "gravity-well-obj.zip",
   "bytes": 1055353
  },
  "usdz": {
   "name": "gravity-well.usdz",
   "bytes": 2661710
  },
  "glb_light": {
   "name": "gravity-well-light.glb",
   "bytes": 735884
  },
  "fbx_light": {
   "name": "gravity-well-light.fbx",
   "bytes": 1512908
  }
 },
 "extras": {
  "license": "CC0-1.0",
  "source": "grab3d.com",
  "dimensions_m": "0.410 x 0.410 x 0.149",
  "triangles": 36264,
  "textures": "PBR 2048px: base color, roughness, metallic, normal (baked)",
  "generator": "Created by grab3d",
  "created": "2026-09-26",
  "real_size": "gravity well (spacetime curvature) teaching model, 41 x 41 cm, 15 cm high",
  "notes": "front faces -Y; rubber sheet model of curved spacetime: a square, almost white sheet with a blue coordinate grid (straight x and y lines built into the surface) is stretched in a slim lilac frame on four steel posts above a lilac base board and sinks towards the centre like a funnel (embedding diagram, depth proportional to 1/distance). A large yellow ball (the mass) rests in the dip, a small mint ball (planet) rests on a coral dashed circular orbit on the slope. Movable: orbiter (the planet), origin on the vertical centre axis, rotate about Z to move it along its orbit. No text.",
  "set": "Cozy Science Lab 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
 }
}