{
  "native": "https://github.com/alowhit/alowhit.github.io/releases/download/vfx-source-videos-2026-11/project-bd1104063700e8b5-09_Backdrop_Integrated_PARTIAL.max",
  "saved_reopened": true,
  "stages": [
    {
      "file": "01_Plane_300x190_SOURCE.max",
      "class": "Plane"
    },
    {
      "file": "02_Raise_Far_Rows_SUPPLEMENT.max",
      "class": "Editable_Poly"
    },
    {
      "file": "03_Folded_Backdrop_PARTIAL.max",
      "class": "Editable_Poly"
    }
  ],
  "vertices_world": [
    [
      -100.0,
      -100.0,
      0.0
    ],
    [
      90.0,
      -100.0,
      0.0
    ],
    [
      -100.0,
      100.0,
      0.0
    ],
    [
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      100.0,
      0.0
    ],
    [
      -100.0,
      100.0,
      100.0
    ],
    [
      90.0,
      100.0,
      100.0
    ],
    [
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    ],
    [
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  ],
  "faces": 3,
  "source_verified": {
    "initial_length_cm": 300,
    "initial_width_cm": 190,
    "length_segments": 3,
    "width_segments": 1,
    "generate_mapping_coords": true,
    "source_time_s": 60
  },
  "supplemented": [
    "Vertex reconstruction: floorY -100 to100, wallY100 atZ0to100, roofY100to-80 atZ100; final geometry inferred from sampled source views, not every move proven",
    "Diagnostic material, lighting and cameras",
    "No chamfer added because source operation not yet confirmed"
  ],
  "pending": [
    "Exact teacher vertex movement and topology final state",
    "Camera, lighting and backdrop material fidelity",
    "Complete UV and animation matching",
    "Full assessment"
  ]
}