{ "scene_type": "distance_barrier_rb_problem", "solver": "ipc_solver", "timestep": 0.01, "max_time": 10, "distance_barrier_constraint": { "initial_barrier_activation_distance": 1e-2 }, "rigid_body_problem": { "coefficient_restitution": -1, "gravity": [0, 0, 0], "rigid_bodies": [{ "mesh": "plane.obj", "position": [-0.5001, 0, 0], "rotation": [0, 0, 90], "scale": [0.11, 1, 1], "is_dof_fixed": true, "group_id": 0 }, { "mesh": "plane.obj", "position": [0.5001, 0, 0], "rotation": [0, 0, -90], "scale": [0.11, 1, 1], "is_dof_fixed": true, "group_id": 0 }, { "mesh": "plane.obj", "position": [0, -0.5001, 0], "scale": [0.11, 1, 1], "is_dof_fixed": true, "group_id": 0 }, { "mesh": "plane.obj", "position": [0, 0.5001, 0], "scale": [0.11, 1, 1], "is_dof_fixed": true, "group_id": 0 }, { "mesh": "cube.obj", "position": [0, 0, -4.5], "rotation": [0, 0, 0], "linear_velocity": [0, 0, 10], "is_dof_fixed": [false, false, false, false, false, false] }] } }