{
  "id": "single-software-execution--gui--blender--task-21--ubuntu",
  "snapshot": "Blender-4.2.3",
  "instruction": "Soft Body Bounce. For the steps below, the Blender executable is `/opt/blender/blender`; use it to open `scene.blend`. `scene.blend` contains a `Ground` plane at (0, 0, 0), scaled 10 times in X and Y to form a 20x20 BU collision floor at Z = 0, and a subdivided 2x2x2 BU mesh named `SoftCube` at (0, 0, 5). The scene runs from frame 1 through frame 100 with gravity (0, 0, -9.81), and neither object initially has physics enabled. Use the Physics Properties to make `Ground` a collision object and `SoftCube` a soft body. Set the soft body's Friction to 5.0, Mass to 1.0, disable Goal, set Pull and Push to 0.9, Damp to 0.5, Plasticity to 0, Bending to 10, and leave Self Collision disabled. Bake the simulation for frames 1 through 100 so the cube falls, bounces on the ground at least twice, and settles near the ground with damped motion. Save the completed scene as `/home/user/Desktop/answer.blend`. Requirements: 1. `SoftCube` and `Ground` remain present as mesh objects. 2. At frame 1, the center of the `SoftCube` bounding box has Z >= 4.0. 3. At frame 100, its bounding-box center has Z < 3.0. 4. The frame-by-frame bounding-box-center Z trajectory has at least two local maxima. 5. Measured above the resting center height of 1.0, the second local-maximum amplitude is positive, below 1.0, and strictly smaller than the first local-maximum amplitude. 6. Across all frames, the bounding-box Z extent remains between 1.7 and 2.3 BU.",
  "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/; https://www.loc.gov/preservation/digital/formats/fdd/fdd000507.shtml",
  "config": [
    {
      "type": "upload_file",
      "parameters": {
        "files": [
          {
            "local_path": "task-21/init_file/scene.blend",
            "path": "/home/user/Desktop/scene.blend"
          }
        ]
      }
    },
    {
      "type": "launch",
      "parameters": {
        "command": [
          "blender",
          "/home/user/Desktop/scene.blend"
        ]
      }
    }
  ],
  "trajectory": "trajectories/",
  "related_apps": [
    "blender"
  ],
  "artifact_paths": [
    "/home/user/Desktop/answer.blend"
  ],
  "evaluator": {
    "postconfig": [
      {
        "type": "upload_file",
        "parameters": {
          "files": [
            {
              "local_path": "task-21/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"
}