{
  "method": "Built-in image_gen (stone); Blender procedural render/bake (oak).",
  "stone": {
    "file": "assets/materials/phase10/limestone-albedo.png",
    "width": 1254,
    "height": 1254,
    "note": "Tool returned 1254px despite the prompt requesting 4096px. This file is not advertised as 4K."
  },
  "oak": {
    "files": [
      "assets/materials/phase10/oak-albedo-4k.png",
      "assets/materials/phase10/oak-height-4k.png"
    ],
    "width": 4096,
    "height": 4096,
    "source": "assets-source/phase10/bake_bark.py",
    "note": "Native Blender renders of a periodic 4D-noise material. No bitmap enlargement. 16-bit intermediates retained in assets-source/phase10; 8-bit runtime maps use GPU compression and mipmaps."
  },
  "unused_attempt": {
    "result": "Image generation service returned usage_limit_reached; no generated bark image used."
  }
}