{
  "note": "背景素材は Poly Haven (CC0-1.0)。tools/fetch-backgrounds.py で取得。ただし mutoujima.webp は作者（安竹洋平）によるオリジナルの描き起こし。",
  "items": [
    {
      "file": "empty_warehouse_01.webp",
      "label": "倉庫",
      "yaw": 0,
      "name": "Empty Warehouse 01",
      "authors": {
        "Sergej Majboroda": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/empty_warehouse_01"
    },
    {
      "file": "ballroom.webp",
      "label": "広間",
      "yaw": 0,
      "name": "Ballroom",
      "authors": {
        "Sergej Majboroda": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/ballroom"
    },
    {
      "file": "kloppenheim_06_puresky.webp",
      "label": "空と雲",
      "yaw": 0,
      "name": "Kloppenheim 06 (Pure Sky)",
      "authors": {
        "Greg Zaal": "Original",
        "Jarod Guest": "Sky edits"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/kloppenheim_06_puresky"
    },
    {
      "file": "autumn_park.webp",
      "label": "秋の公園",
      "yaw": 0,
      "name": "Autumn Park",
      "authors": {
        "Sergej Majboroda": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/autumn_park"
    },
    {
      "file": "newman_cafeteria.webp",
      "label": "学校",
      "yaw": 0,
      "name": "Newman Cafeteria",
      "authors": {
        "Savva Zakharov": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/newman_cafeteria"
    },
    {
      "file": "minedump_flats.webp",
      "label": "砂漠",
      "yaw": 0,
      "name": "Minedump Flats",
      "authors": {
        "Dimitrios Savva": "Photography",
        "Jarod Guest": "Processing"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/minedump_flats"
    },
    {
      "file": "spiaggia_di_mondello.webp",
      "label": "海岸",
      "yaw": 0,
      "name": "Spiaggia di Mondello",
      "authors": {
        "Andreas Mischok": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/spiaggia_di_mondello"
    },
    {
      "file": "wooden_lounge.webp",
      "label": "社長室（木の部屋）",
      "yaw": 0,
      "name": "Wooden Lounge",
      "authors": {
        "Greg Zaal": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/wooden_lounge"
    },
    {
      "file": "abandoned_factory_canteen_01.webp",
      "label": "廃工場の食堂",
      "yaw": 0,
      "name": "Abandoned Factory Canteen 01",
      "authors": {
        "Sergej Majboroda": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/abandoned_factory_canteen_01"
    },
    {
      "file": "basement_boxing_ring.webp",
      "label": "地下室のリング",
      "yaw": 180,
      "name": "Basement Boxing Ring",
      "authors": {
        "Sergej Majboroda": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/basement_boxing_ring"
    },
    {
      "file": "autoshop_01.webp",
      "label": "自動車工場",
      "yaw": 0,
      "name": "Autoshop 01",
      "authors": {
        "Oliksiy Yakovlyev": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/autoshop_01"
    },
    {
      "file": "urban_alley_01.webp",
      "label": "路地",
      "yaw": 0,
      "name": "Urban Alley 01",
      "authors": {
        "Andreas Mischok": "All"
      },
      "license": "CC0-1.0",
      "kind": "hdri",
      "source": "https://polyhaven.com/a/urban_alley_01"
    },
    {
      "file": "mutoujima.webp",
      "label": "無人島",
      "yaw": 0,
      "name": "Mutoujima",
      "authors": {
        "安竹洋平": "All"
      },
      "license": "original (not CC0)",
      "kind": "illustration",
      "source": "作者（安竹洋平）が bluebey-studio のために描き起こしたオリジナル作品"
    }
  ]
}