inputs_example.json

{
    "save_path": "./sand3d_collision/",
    "id_range": [
        0,
        1
    ],
    "domain_size": 1.0,
    "friction_angle": 40,
    "wall_friction": 0.5,
    "elastic_modulus": 2000000.0,
    "poisson_ratio": 0.3,
    "rho": 1800,
    "sim_space": [
        [
            0.1,
            0.9
        ],
        [
            0.1,
            0.9
        ],
        [
            0.1,
            0.9
        ]
    ],
    "sim_resolution": [
        32,
        32,
        32
    ],
    "nsteps": 350,
    "mpm_dt": 0.0025,
    "gravity": [0, -9.81, 0],
    "gen_cube_randomly": {
        "generate": true,
        "sim_inputs": {
            "mass": {
                "ncubes": [1, 2],
                "min_distance_between_cubes": 0.01,
                "cube_size_range": [0.20, 0.39],
                "cube_gen_space": [[0.11, 0.5], [0.11, 0.89], [0.11, 0.89]],
                "vel_range": [[-2.5, 2.5], [-2.5, 2.5], [-2.5, 2.5]],
                "nparticle_limits": 15000
            },
            "obstacles": {
                "ncubes": [1, 2],
                "min_distance_between_cubes": 0.01,
                "cube_size_range": [[0.1, 0.1], [0.35, 0.35], [0.1, 0.1]],
                "cube_gen_space": [[0.51, 0.89], [0.1, 0.45], [0.11, 0.89]],
                "vel_range": [-2.5, 2.5],
                "nparticle_limits": 7000
            }
        }
    },
    "gen_cube_from_data": {
        "generate": false,
        "sim_inputs": [
            {
                "id": 0,
                "mass": {
                    "cubes": [
                        [
                            0.5,
                            0.11,
                            0.20,
                            0.5,
                            0.2,
                            0.5
                        ]
                    ],
                    "velocity_for_cubes": [
                        [
                            1.0,
                            1.0,
                            1.5
                        ]
                    ]
                },
                "obstacles": {
                    "cubes": [
                        [1.0, 0.10, 0.45, 0.1, 0.5, 0.1]
                    ],
                    "velocity_for_cubes": [
                        [0.0, 0.0, 0.0]
                    ]
                }
            }
        ]
    },
    "visualization": {
        "is_realtime_vis": true,
        "is_save_animation": true,
        "skip": 1
    }
}