metadata/rigid/turntable.json

{
    "description": "The task involves a cube hovering above a rotating circle turntable. Then, the cube is released on the turntable, and slides or keeps rest relative to the surface.",
    "prompt": "Static top camera view: A black plastic cube (mass ≈ 147 g) is positioned off-center atop a wooden circular turntable (mass ≈ 722 g) driven by an electric motor and undergoing continuous rotation; the full assembly rests on a optical table. Coefficient of static friction between the cube and turntable ≈ 0.32; coefficient of restitution ≈ 0.32. Upon rotation, the cube follows a sliding trajectory across the spinning turntable surface.",
    "assets": {
        "cube": {
            "model": "../../assets/obj/cube.obj",
            "material": {
                "wood": {
                    "mass": 0.0903,
                    "density": 722.4,
                    "friction": 0.378789,
                    "restitution": 0.285485
                },
                "plastic": {
                    "mass": 0.1469,
                    "density": 1175.2,
                    "friction": 0.322256,
                    "restitution": 0.324127
                },
                "metal": {
                    "mass": 0.3397,
                    "density": 2717.6,
                    "friction": 0.326517,
                    "restitution": 0.225054
                }
            }
        },
        "plate": {
            "model": "../../assets/obj/plate.obj",
            "material": {
                "wood": {
                    "mass": 0.7216,
                    "density": 510.4276,
                    "friction": 0.322256,
                    "restitution": 0.225054
                }
            }
        }
    },
    "tasks": {
        "task-1": {
            "assets": ["cube", "plate"],
            "translation": {
                "cube": {
                    "wood": [0.480787, 0.406880, 0.213902],
                    "plastic": [0.482116, 0.408567, 0.214826],
                    "metal": [0.481028, 0.408019, 0.215814]
                },
                "plate": {
                    "wood": [0.474901, 0.481774, 0.178902],
                    "plastic": [0.474906, 0.481779, 0.179826],
                    "metal": [0.474892, 0.481777, 0.180814]
                }
            },
            "orientation": {
                "cube": {
                    "wood": [0, 0, 0],
                    "plastic": [0, 0, 0],
                    "metal": [0, 0, 0]
                },
                "plate": {
                    "wood": [0, 0, 0],
                    "plastic": [0, 0, 0],
                    "metal": [0, 0, 0]
                }
            },
            "fixed": {
                "cube": false,
                "plate": false
            },
            "kinematic": {
                "cube": false,
                "plate": true
            },
            "record": {
                "assets": ["cube"],
                "dim": ["x", "y", "z"],
                "fps": 30
            }
        },
        "task-2": {
            "assets": ["cube", "plate"],
            "translation": {
                "cube": {
                    "wood": [0.477958, 0.406848, 0.213842],
                    "plastic": [0.478944, 0.408666, 0.214725],
                    "metal": [0.478794, 0.408084, 0.216051]
                },
                "plate": {
                    "wood": [0.474812, 0.481797, 0.178842],
                    "plastic": [0.474653, 0.481720, 0.179725],
                    "metal": [0.475306, 0.481697, 0.181051]
                }
            },
            "orientation": {
                "cube": {
                    "wood": [0, 0, 0],
                    "plastic": [0, 0, 0],
                    "metal": [0, 0, 0]
                },
                "plate": {
                    "wood": [0, 0, 0],
                    "plastic": [0, 0, 0],
                    "metal": [0, 0, 0]
                }
            },
            "fixed": {
                "cube": false,
                "plate": false
            },
            "kinematic": {
                "cube": false,
                "plate": true
            },
            "record": {
                "assets": ["cube"],
                "dim": ["x", "y", "z"],
                "fps": 30
            }
        },
        "task-3": {
            "assets": ["cube", "plate"],
            "translation": {
                "cube": {
                    "wood": [0.478844, 0.407497, 0.212681],
                    "plastic": [0.478783, 0.408776, 0.213371],
                    "metal": [0.477349, 0.408832, 0.214280]
                },
                "plate": {
                    "wood": [0.474748, 0.482441, 0.177681],
                    "plastic": [0.474745, 0.482457, 0.178371],
                    "metal": [0.474730, 0.482427, 0.17928]
                }
            },
            "orientation": {
                "cube": {
                    "wood": [0, 0, 0],
                    "plastic": [0, 0, 0],
                    "metal": [0, 0, 0]
                },
                "plate": {
                    "wood": [0, 0, 0],
                    "plastic": [0, 0, 0],
                    "metal": [0, 0, 0]
                }
            },
            "fixed": {
                "cube": false,
                "plate": false
            },
            "kinematic": {
                "cube": false,
                "plate": true
            },
            "record": {
                "assets": ["cube"],
                "dim": ["x", "y", "z"],
                "fps": 30
            }
        }
    }
}