{
  "asset": "Papilio xuthus dorsal and ventral photographic pigment, adapted to procedural membranes",
  "author": "NSG group, Lund, Sweden",
  "specimen": "MZLU-00129145; source metadata identifies collection location Japan",
  "source": "https://commons.wikimedia.org/wiki/File:MZLU-00129145_dorsal_(51008259851).jpg",
  "original": "https://www.flickr.com/photos/nsg_db/51008259851/",
  "license": "CC0",
  "license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
  "changes": [
    "Right fore/hind wing crops warped to existing procedural geometry using thin plate spline landmarks",
    "Small RGB white balance correction; near-white mounting-board samples replaced at warped boundary",
    "1024px baked atlases; edge-colour bleed for mipmaps",
    "Distinct ventral fore/hind photos selected on back faces, including emissive pigment; no warm-tinted dorsal substitute in photographic mode",
    "Ventral uses separate photographed edge landmarks, 2.5% inset, RGB multipliers [1,1.02,1.08], and 12px boundary-only neutral mounting-board cleanup (7 fore / 23 hind atlas pixels).",
    "Dorsal atlases, membrane geometry and all wing animation remain unchanged. Artistic symmetry and fitted contours; not a scientific specimen reconstruction."
  ],
  "generator": "scripts/build-wing-photo.py",
  "source_metadata": "assets/references/papilio-xuthus-source-metadata.json",
  "ventral": {
    "source": "https://commons.wikimedia.org/wiki/File:MZLU-00129145_ventral_(51008363422).jpg",
    "original": "https://www.flickr.com/photos/nsg_db/51008363422/",
    "author": "NSG group, Lund, Sweden",
    "specimen": "MZLU-00129145",
    "license": "CC0",
    "license_url": "https://creativecommons.org/publicdomain/zero/1.0/",
    "download": "https://upload.wikimedia.org/wikipedia/commons/6/65/MZLU-00129145_ventral_%2851008363422%29.jpg",
    "sha256": "caad5ec881ace7cd490c1fa7d5e0f74b0784af1ac5e80b04ac1a31b2a8477ae1",
    "dimensions": [
      4032,
      3024
    ],
    "dateVerified": "2026-10-18"
  }
}