{
  "id": "single-software-execution--cli--blender--task-25--ubuntu",
  "snapshot": "Blender-4.2.3",
  "instruction": "Procedural Wood Material `/home/user/Desktop/scene.blend` contains a 2x2 BU UV-unwrapped plane named `Board` at the origin. Launch Blender by running `blender` from a terminal. Use `/opt/blender/blender` for Blender command-line or background runs when working on `scene.blend`.\n\nIt has a grey Principled BSDF material `WoodMat` containing an Image Texture node referencing a blank 512x512 RGBA image datablock named `WoodBake`. The `WoodBake` image texture node is the active node on the material. Your task: rebuild `WoodMat`'s node tree into a procedural wood shader (NO external texture file — purely from shader nodes like Texture Coordinate, Noise, Wave, Vector Math, and Color Ramp), bake the diffuse color onto the `WoodBake` image, save the result to `/home/user/Desktop/wood.png` at 512x512, and save the completed scene to `/home/user/Desktop/answer.blend`. ## Requirements 1. `/home/user/Desktop/wood.png` exists. 2. `/home/user/Desktop/answer.blend` exists and preserves `Board`, `WoodMat`, a procedural node graph, and the active `WoodBake` image node used as the bake target. 3. Image is exactly 512x512. 4. Brown hue: mean R > mean G > mean B AND mean R in [0.2, 0.7]. 5. Banding detected: along the central row of the image, counting sign-crossings of (pixel luma - row mean luma), at least 4 zero-crossings (distinct bright/dark alternations). 6. Color variation: per-pixel luma standard deviation >= 0.05. 7. Dark and light present: min luma < 0.15 AND max luma > 0.40.",
  "source": "https://docs.blender.org/manual/en/4.1/; https://docs.blender.org/api/4.1/; https://developer.blender.org/docs/release_notes/4.1/",
  "config": [
    {
      "type": "upload_file",
      "parameters": {
        "files": [
          {
            "local_path": "task-25/init_file/scene.blend",
            "path": "/home/user/Desktop/scene.blend"
          }
        ]
      }
    },
    {
      "type": "upload_file",
      "parameters": {
        "files": [
          {
            "local_path": "task-25/init_file/stub_gray.png",
            "path": "/home/user/Desktop/stub_gray.png"
          }
        ]
      }
    }
  ],
  "trajectory": "trajectories/",
  "related_apps": [
    "blender"
  ],
  "artifact_paths": [
    "/home/user/Desktop/answer.blend",
    "/home/user/Desktop/wood.png"
  ],
  "evaluator": {
    "postconfig": [
      {
        "type": "upload_file",
        "parameters": {
          "files": [
            {
              "local_path": "task-25/eval.py",
              "path": "/home/user/Desktop/eval.py"
            }
          ]
        }
      }
    ],
    "func": "exact_match",
    "result": {
      "type": "vm_command_line",
      "command": "python3 /home/user/Desktop/eval.py",
      "shell": "true"
    },
    "expected": {
      "type": "rule",
      "rules": {
        "expected": "True\n"
      }
    }
  },
  "proxy": false,
  "fixed_ip": false,
  "possibility_of_env_change": "low"
}