{
  "revision": "texture-refinement-20261021",
  "backup": "backups/vehicle-textures-20261021-231241",
  "exteriorReferences": [
    "media/official-images/Roadster-02-Pilot-Desktop.jpg",
    "media/official-images/Roadster-08-End-Desktop.jpg",
    "media/official-images/Roadster-03-Carousel-Slide-2-Desktop.jpg"
  ],
  "exteriorChanges": [
    "Higher useful texel density with tighter packing",
    "Warm dark glass with antialiased inner perimeter seals",
    "Triangular front lenses, dark lens housings, thin rear LED cores and restrained lens detail",
    "Paint roughness grain only; no added displacement or photographed highlights",
    "Satin sill trim; subdued rear-fascia weave supported by official rear photo"
  ],
  "underbody": {
    "sourceVideo": "media/kickflip-1080p.mp4",
    "sourceVideoSha256": "ee2bd4f9d317aa7e0b8cad52081acacb05da5155f5348cf60143bcfacb194277",
    "officialPost": "https://x.com/Tesla/status/2110926164306931860",
    "decodedFrameIndex": 813,
    "ptsSeconds": 33.908875,
    "sourceFrame": "references/underbody-frame-813.png",
    "sourceFrameSha256": "d206db0ae5a528bd7fb464f49ced076ca23b87cb5e58d339e921db894415342c",
    "crop": [
      240,
      160,
      650,
      380
    ],
    "editInput": "references/underbody-source-crop.png",
    "texture": "underbody-albedo.png",
    "textureSha256": "4a6306775ee0438c5c29615f5dd8257ef619afa20096d54165196870b17287eb",
    "mode": "Built-in image_gen precise-object-edit",
    "promptFile": "underbody-prompt.txt",
    "orientation": "front at image left, rear at right; mapped to source -X front, +X rear",
    "projection": "Shared continuous X/Z UV rectangle, only downward shell faces below Y=-0.035 and inside |Z|<0.28",
    "limits": [
      "AI-assisted approximate cleanup and perspective correction from a compressed video frame. Small brackets, fasteners and occluded parts are not verified.",
      "Albedo with derived roughness/metalness, no recovered depth or physical mechanism.",
      "Source shows prototype hardware; not claimed as the production vehicle underbody."
    ]
  },
  "geometry": "Body positions/normals and wheels retained; only material maps and body UV layout changed."
}