{
  "id": "city-skate-quarter-pipe",
  "type": "model",
  "title": "開放フレーム式スケートランプ",
  "titleEn": "Open-frame skate quarter pipe",
  "description": "スケートパークの端部に置く単体クォーターパイプ。連続した曲面の滑走面、薄い導入リップ、丸いコーピング、上部デッキと低い後方ガード、5本の曲線リブ、横梁・脚・斜材を備えた開放式の下部構造を造形。スケートボード、利用者、隣接ランプ、地面や基礎は含みません。静的装飾用で、滑走性能・転落防護・構造安全・競技規格は未検証。認証された遊具や施工指示ではありません。 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）2.498 × 1.970 × 2.556 m、30,200三角形。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": "One quarter pipe for the edge of a skate-park scene, with a continuously curved riding skin, thin approach lip, round coping, elevated deck and low rear guard, five arched ribs, cross bearers, legs and diagonal braces visible beneath the open frame. No skateboard, rider, adjacent ramp, ground or foundation. Static decorative geometry; riding performance, fall protection, structural safety and competition standards are unvalidated. Not certified play equipment or construction instructions. For games and visualization; not validated for manufacture, structural engineering or 3D printing. Bounding dimensions (X×Y×Z): 2.498 × 1.970 × 2.556 m; 30,200 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",
    "park",
    "skate",
    "quarter-pipe",
    "ramp",
    "スケート"
  ],
  "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/19c77f5d75f69599aabb6e306a2cf1beb230b1f5/content/assets/city-skate-quarter-pipe/preview.png",
  "preview": "city-skate-quarter-pipe.glb",
  "unit": "m",
  "upAxis": "Y",
  "triangles": 30200,
  "dimensions": [
    2.498,
    1.969949,
    2.555778
  ],
  "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-011/scripts/city_expansion/active_park.py",
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    "sourceRecipeSha256": "54293a01b6b56bab7133b6fd2a39c538a8679cc23f5b611cdc5b096dd5766862",
    "sourceHelpersSha256": "99ea76b4c3073b3ec2cfdf732e987c7977bfe5efc986b4a077df8db35a6f9d15",
    "alternateFormat": "STL triangulated from the exact reimported GLB, metre-valued Y-up coordinates. No printability or manufacture validation.",
    "stlSha256": "84a31436260a5d8b69254dcd8ce049cba47fc2a6adfee5a105ac455cd34ff2ce"
  },
  "usages": [
    {
      "relationship": "original",
      "project": "Meshcopia",
      "sourceUrl": "https://github.com/Xenoah/meshcopia",
      "sourcePaths": [
        "scripts/city_expansion/frozen/batch-011/scripts/city_expansion/active_park.py",
        "scripts/city_expansion/frozen/batch-011/scripts/city_expansion/common.py"
      ],
      "selectors": [
        "city-skate-quarter-pipe"
      ],
      "context": "Original city asset created for this library. No external deployment or reuse claimed."
    }
  ],
  "pageUrl": "https://xenoah.github.io/meshcopia/assets/city-skate-quarter-pipe/",
  "manifestUrl": "https://xenoah.github.io/meshcopia/api/assets/city-skate-quarter-pipe.json",
  "attribution": "Open-frame skate quarter pipe by Xenoah / Meshcopia\nhttps://xenoah.github.io/meshcopia/assets/city-skate-quarter-pipe/\nCC BY 4.0 — https://creativecommons.org/licenses/by/4.0/\nChanges: none. If modified, replace this line with a description of your changes.",
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        "sha256": "d8c14fdd7d2fd51eb95cc353fcc82db907c8e8352b41cf48f4f8cb4bf94ef567",
        "text": "Open-frame skate quarter pipe 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-skate-quarter-pipe/\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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}