{
  "reference": {
    "path": "references/lighthouse-board.png",
    "kind": "Generated architectural reference sheet",
    "tool": "Built-in image_gen",
    "date": "2026-11-02",
    "prompt": "Use case: stylized-concept. Asset type: reference sheet for modelling a believable small coastal lighthouse for a peaceful driving game, NOT a screenshot or a game asset itself. Three coherent views of the SAME lighthouse on a pale neutral backdrop: large three-quarter view, front elevation, side elevation. A graceful white lightly tapered round masonry lighthouse about 17 metres tall, low stone base, one muted sea-green band beneath the lantern gallery, narrow recessed vertical windows, a modest dark teal door, dark graphite gallery railings, clear octagonal glass lantern room with warm lamp, shallow conical graphite roof and slim finial. A rocky coastal foundation visible in the main view, but show complete silhouette in elevations. Photorealistic architectural materials with restrained coastal weathering, soft sunny light, calm fresh spring palette. No people, cars, signage, lettering, diagrams, numbers, fantasy ornaments, giant red stripes, or dramatic storm. Design should be straightforward to model faithfully at low polygon count while retaining the railing, lantern frame, cornices and tapered tower."
  },
  "geometry": {
    "source": "Original Blender geometry guided by the generated sheet",
    "builder": "build_lighthouse.py",
    "runtime": "lighthouse.meshopt.glb",
    "features": [
      "tapered white tower",
      "muted green band",
      "stone plinth and island",
      "recessed front windows and door",
      "gallery railing and braces",
      "octagonal glazed lantern",
      "conical roof and finial"
    ],
    "notPhotogrammetry": true
  },
  "audio": "audio-sources.json"
}