{ "scene_type": "distance_barrier_rb_problem", "solver": "ipc_solver", "max_time": 10.0, "timestep": 0.01, "distance_barrier_constraints": { "initial_barrier_activation_distance": 1e-4 }, "rigid_body_problem": { "coefficient_restitution": -1, "gravity": [0, -9.8, 0], "rigid_bodies": [{ "mesh": "plane.obj", "position": [0, -0.5, 0], "is_dof_fixed": true }, { "mesh": "tet-corner.obj", "position": [0, 1, 0], "rotation": [0, 180, 0], "is_dof_fixed": false }] } }