{
  "id": "city-ventilation-outlet",
  "type": "model",
  "title": "壁面換気ルーバー",
  "titleEn": "Wall ventilation louver",
  "description": "7枚の傾斜羽根、水切り端部、奥行きのある枠とメッシュ防虫網を備えた金属製換気口。 ゲーム・可視化向け。製造・構造設計・3Dプリント用途は未検証。",
  "descriptionEn": "A folded-metal wall outlet with seven sloping louvers, drip lips, deep frame and a fully modeled rear insect screen. For games and visualization; not validated for manufacture, structural engineering or 3D printing.",
  "category": "urban",
  "tags": [
    "city",
    "street",
    "original",
    "ventilation",
    "louver",
    "wall",
    "metal",
    "exterior",
    "換気口"
  ],
  "author": "Xenoah",
  "license": "CC-BY-4.0",
  "version": "1.0.0",
  "status": "public",
  "created": "2026-10-14",
  "updated": "2026-10-14",
  "thumbnail": "https://xenoah.github.io/meshcopia/assets/city-ventilation-outlet/thumbnail.png",
  "preview": "city-ventilation-outlet.glb",
  "unit": "m",
  "upAxis": "Y",
  "triangles": 13188,
  "dimensions": [
    0.6,
    0.45,
    0.172
  ],
  "uv": "Per-component primitive or automatically unwrapped UVs. Overlapping between components; not a packed unique lightmap atlas. Solid-color PBR materials; no external textures. STL has no colors or UVs. Repeated static parts are grouped into named assemblies; triangle-corner UVs and material records retained from original.",
  "provenance": {
    "method": "Original procedural geometry, followed by geometry-preserving static GLB assembly grouping",
    "tool": "Blender 4.5.14 LTS; Meshcopia city generator 1.0; grouping postprocessor with Python 3.12.14 and NumPy 2.3.5",
    "rights": "Original geometry and material design created for Xenoah Meshcopia under the owner request for CC-BY-4.0 publication. No third-party meshes, scans, brands, logos or font files.",
    "generatorUrl": "https://github.com/Xenoah/meshcopia/blob/main/scripts/city/group_static_assemblies.py",
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    "stlSha256": "b2d5cce26cd2c37c2b0d52f41b4a5c9309ce1c84ddda36ecdd13d053e37c3dca",
    "changes": "Static repeated mesh parts grouped by original material within named major assemblies; no decimation, remeshing, UV change or material change. Candidate equivalence audited against frozen original GLB 49c551213a6c89938b4716a1ae6df221a5612aa7c9bbed162e542ea81745666f.",
    "baseGeneratorUrl": "https://github.com/Xenoah/meshcopia/blob/main/scripts/city/infrastructure.py",
    "postprocessGeneratorUrl": "https://github.com/Xenoah/meshcopia/blob/main/scripts/city/group_static_assemblies.py"
  },
  "usages": [
    {
      "relationship": "original",
      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
      "sourcePaths": [
        "scripts/city/infrastructure.py",
        "scripts/city/common.py",
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        "scripts/city/render_grouped_assemblies.py"
      ],
      "selectors": [
        "city-ventilation-outlet"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
  "pageUrl": "https://xenoah.github.io/meshcopia/assets/city-ventilation-outlet/",
  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-ventilation-outlet.json",
  "attribution": "Wall ventilation louver by Xenoah / Meshcopia\nhttps://xenoah.github.io/meshcopia/assets/city-ventilation-outlet/\nCC BY 4.0 — https://creativecommons.org/licenses/by/4.0/\nChanges: Static repeated mesh parts grouped by original material within named major assemblies; no decimation, remeshing, UV change or material change. Candidate equivalence audited against frozen original GLB 49c551213a6c89938b4716a1ae6df221a5612aa7c9bbed162e542ea81745666f.",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
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        "bytes": 660,
        "filename": "LICENSE.txt",
        "sha256": "c3a8821cf575f167f6bee39da53a44fd48dd964cedf7765a6ed8508c9ba0d9f1",
        "text": "Wall ventilation louver by Xenoah / Meshcopia\nCopyright (c) 2026 Xenoah\nCC BY 4.0: https://creativecommons.org/licenses/by/4.0/\nSource: https://xenoah.github.io/meshcopia/assets/city-ventilation-outlet/\nProvided as-is, without warranties (license Section 5).\nChanges: Static repeated mesh parts grouped by original material within named major assemblies; no decimation, remeshing, UV change or material change. Candidate equivalence audited against frozen original GLB 49c551213a6c89938b4716a1ae6df221a5612aa7c9bbed162e542ea81745666f.\nAdditional changes: Converted unchanged source GLB geometry to FBX, with documented compatible material/texture derivatives.\n"
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        "state": "published-verified"
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  "previewUrl": "https://xenoah.github.io/meshcopia/assets/city-ventilation-outlet/source/city-ventilation-outlet.glb"
}