{
    "scene_type": "distance_barrier_rb_problem",
    "solver": "ipc_solver",
    "timestep": 0.01,
    "max_time": 5,
    "#max_iterations": 10,
    "distance_barrier_constraint": {
        "initial_barrier_activation_distance": 1e-4,
        "trajectory_type": "piecewise_linear"
    },
    "ipc_solver": {
        "#velocity_conv_tol": 1e-5
    },
    "rigid_body_problem": {
        "coefficient_restitution": -1,
        "gravity": [0, -9.81, 0],
        "rigid_bodies": [{
            "mesh": "screw-and-nut/nut-big.obj",
            "position": [0, 0, 0],
            "rotation": [0, 0, 0],
            "scale": 0.01,
            "density": 8050,
            "type": "static"
        }, {
            "mesh": "screw-and-nut/screw-big.obj",
            "position": [0, 0, 0],
            "scale": 0.01,
            "density": 8050
        }]
    }
}