{
  "id": "city-tripod-projection-screen",
  "type": "model",
  "title": "三脚式ポータブル投影スクリーン",
  "titleEn": "Tripod portable projection screen",
  "description": "無地の不透明な投影面を一枚だけ展開した可搬式スクリーン。黒縁と黒い背面、上端バー、実際に開いたスリット付き収納筒、中央支柱、背面の斜めステー、三脚と折畳み風の補強リンクを備えます。白面は単色材質で、画像テクスチャ・透過・発光・映像表示はありません。巻取り・伸縮・脚は固定状態です。投影機、会場、床、人は含みません。巻取りばね、内部機構、細かなねじ山は省略。転倒安全性、構造、光学・投影性能は未検証。 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。 外接寸法（X×Y×Z）2.022 × 2.338 × 0.924 m、9,684三角形。単位m・Y-up、水平中央の接地用原点、最下点Y=0。部品ごとの重複UV0と単色PBR材質を収録し、画像テクスチャ・UV2・コライダー・LOD・リグ・動作は付属しません。静的表示用でUnity/VRChat実機検証は未実施。STLはm・Y-up座標の形状のみで色・材質・UV・階層を含みません。",
  "descriptionEn": "A portable screen with exactly one extended blank opaque projection surface, black border and rear, top suspension bar, genuinely slotted cassette housing, center pole, rear diagonal stays, tripod feet and folding-looking brace links. The off-white face is a constant-color material, with no image texture, transparency, emission or displayed picture. Retraction, telescoping and legs are fixed. No projector, venue, floor or person is included. Roll-up spring, internal mechanisms and fine screw threads are omitted. Tip resistance, structural safety and optical/projection performance are unvalidated. For games and visualization; not validated for manufacture, structural engineering or 3D printing. Bounding dimensions (X×Y×Z): 2.022 × 2.338 × 0.924 m; 9,684 triangles. Metres, Y-up, horizontally centered placement origin with minimum Y=0, not an articulation or wall-mount pivot. Includes overlapping component UV0 and constant-color PBR materials, with no image textures, unique UV2, colliders, LOD, rig or runtime behavior. Static visualization only; Unity/VRChat editor and runtime tests have not been performed. STL uses metre-valued Y-up coordinates and contains geometry only, without color, materials, UVs or hierarchy.",
  "category": "urban",
  "tags": [
    "city",
    "street",
    "original",
    "projection-screen",
    "tripod",
    "conference",
    "投影スクリーン"
  ],
  "author": "Xenoah",
  "license": "CC-BY-4.0",
  "version": "1.0.0",
  "status": "public",
  "created": "2026-10-14",
  "updated": "2026-10-14",
  "thumbnail": "https://raw.githubusercontent.com/Xenoah/meshcopia/19446e7a974ccf0130721a39654cbf386a627b7d/content/assets/city-tripod-projection-screen/preview.png",
  "preview": "city-tripod-projection-screen.glb",
  "unit": "m",
  "upAxis": "Y",
  "triangles": 9684,
  "dimensions": [
    2.022,
    2.3385,
    0.923585
  ],
  "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.",
  "provenance": {
    "method": "Original AI-agent-authored procedural city geometry",
    "tool": "Blender 4.3.2; Meshcopia original city expansion generator 1.0",
    "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_expansion/frozen/batch-019/scripts/city_expansion/event_presentation.py",
    "sourceSha256": "00894a4f69b1f599340fa1e47d05ac302d318234ddf9f5131cd75e28e7a4c65d",
    "sourceRecipeSha256": "18cce003e55fa2713e3911710355fca6a3692233c197d71fe7729db6fd50ce98",
    "sourceHelpersSha256": "99ea76b4c3073b3ec2cfdf732e987c7977bfe5efc986b4a077df8db35a6f9d15",
    "alternateFormat": "STL triangulated from the exact reimported GLB, metre-valued Y-up coordinates. No printability or manufacture validation.",
    "stlSha256": "f7d7b6fd1c1b687a742edc9fbc7c4038a761169a60dc0deb5e9024e93ff8c2c8"
  },
  "usages": [
    {
      "relationship": "original",
      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
      "sourcePaths": [
        "scripts/city_expansion/frozen/batch-019/scripts/city_expansion/event_presentation.py",
        "scripts/city_expansion/frozen/batch-019/scripts/city_expansion/common.py"
      ],
      "selectors": [
        "city-tripod-projection-screen"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
  "pageUrl": "https://xenoah.github.io/meshcopia/assets/city-tripod-projection-screen/",
  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-tripod-projection-screen.json",
  "attribution": "Tripod portable projection screen by Xenoah / Meshcopia\nhttps://xenoah.github.io/meshcopia/assets/city-tripod-projection-screen/\nCC BY 4.0 — https://creativecommons.org/licenses/by/4.0/\nChanges: none. If modified, replace this line with a description of your changes.",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
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      "url": "https://raw.githubusercontent.com/Xenoah/meshcopia/19446e7a974ccf0130721a39654cbf386a627b7d/content/assets/city-tripod-projection-screen/source/city-tripod-projection-screen.stl"
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      "id": "city-tripod-projection-screen",
      "assetVersion": "1.0.0",
      "packageVersion": "1.0.0",
      "contentPolicy": "fbx-required-textures-single-notice-v1",
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        "url": "https://github.com/Xenoah/meshcopia/releases/download/cohort-new251-v1.0.0/city-tripod-projection-screen-1.0.0-fbx-minimal-1.0.0.zip"
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        "filename": "LICENSE.txt",
        "sha256": "f74b7bd9a41401b1defbf3901a51913d7deca56750edc7c8389c4ee3207bd621",
        "text": "Tripod portable projection screen 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-tripod-projection-screen/\nProvided as-is, without warranties (license Section 5).\nChanges: none.\nAdditional changes: Converted unchanged source GLB geometry to FBX, with documented compatible material/texture derivatives.\n"
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  "previewUrl": "https://xenoah.github.io/meshcopia/assets/city-tripod-projection-screen/source/city-tripod-projection-screen.glb"
}