{
  "name": "MarsAerial",
  "key": "marsaerial",
  "chunk_id": 0,
  "chunk_label": "Chunk 1",
  "component_id": 0,
  "camera_count": 380,
  "native_vertex_count": 1419207,
  "native_triangle_count": 2837510,
  "display_vertex_count": 443485,
  "display_triangle_count": 886066,
  "sparse_point_count": 0,
  "display_transform": [
    [
      -0.0015840969151991967,
      0.006132847823069013,
      -0.00491482114573155,
      -0.2811378534645006
    ],
    [
      -0.001849424963231084,
      -0.005163754743586115,
      -0.005847385450409913,
      -0.4310003295768866
    ],
    [
      -0.007638515341401759,
      -2.1607391455256266e-05,
      0.002435009004500888,
      1.3695654468706902
    ],
    [
      0.0,
      0.0,
      0.0,
      1.0
    ]
  ],
  "scale": 0.008017272126614882,
  "source_mesh_file": "/mnt/data/metashape_v2/source/model.zip",
  "source_chunk_file": "/mnt/data/metashape_work/chunk.zip",
  "source_sparse_file": null,
  "mesh_sha256": "c6bf0eb9a5a032dbae7235df6d015a212ecc5ce3da413f31e1d0d395b278c3d9",
  "positive_depth_tracks": {
    "sampled": 0,
    "positive": 0
  },
  "ray_mesh_camera_hit_count": 359,
  "browser_triangle_count": 32668,
  "source_preview_count": 380,
  "notes": "Sparse archive transfer failed; this view uses the real stored mesh.",
  "original_project": "MarsAerial.psx",
  "original_chunk_path": "01 SCAN FILE/MarsAerial.files/0/chunk.zip",
  "original_mesh_path": "01 SCAN FILE/MarsAerial.files/0/0/model/model.zip",
  "frustums": "Adjusted focal length, principal point and image dimensions; straight pinhole approximation. Lens distortion is not applied. Frustum depth is a display choice, not a measured scene quantity.",
  "trajectory": "Straight connectors follow numeric source-frame/timestamp labels; separate capture groups and very large jumps are not connected. Not independently measured flight telemetry.",
  "display_orientation": "Single rigid PCA leveling plus uniform scale applied to both cameras and geometry. Surface is not moved independently. Display-up is a presentation convention, not independently verified gravity.",
  "source_pixels": "Actual cached project thumbnails for MarsAerial and Ingenuity; matched original JPGs for Curiosity, reduced for display. Ingenuity frame labels indicate Topaz-enhanced imagery.",
  "mesh_reduction": "Movie meshes are display-reduced. Interactive WebGL and Canvas meshes are reduced further. Reduction and camera-icon scaling are documented, not claims of full-resolution rendering."
}