[
  {
    "id": "rough_wood",
    "title": "Rough Wood",
    "source": "https://polyhaven.com/a/rough_wood",
    "license": "CC0-1.0",
    "licenseUrl": "https://polyhaven.com/license",
    "use": "Surface appearance only; not archaeological evidence.",
    "delivery": "Embedded in the optimized scene GLB; original maps reproduced with scripts/fetch-materials.py."
  },
  {
    "id": "rocky_gravel",
    "title": "Rocky Gravel",
    "source": "https://polyhaven.com/a/rocky_gravel",
    "license": "CC0-1.0",
    "licenseUrl": "https://polyhaven.com/license",
    "use": "Surface appearance only; not archaeological evidence.",
    "delivery": "Embedded in the optimized scene GLB; original maps reproduced with scripts/fetch-materials.py."
  },
  {
    "id": "rock_boulder_dry",
    "title": "Rock Boulder Dry",
    "source": "https://polyhaven.com/a/rock_boulder_dry",
    "license": "CC0-1.0",
    "licenseUrl": "https://polyhaven.com/license",
    "use": "Surface appearance only; not archaeological evidence.",
    "delivery": "Embedded in the optimized scene GLB; original maps reproduced with scripts/fetch-materials.py."
  }
]