{ "scene_type": "distance_barrier_rb_problem", "solver": "ipc_solver", "max_time": 10.0, "timestep": 0.01, "rigid_body_problem": { "coefficient_restitution": -1, "gravity": [0, -9.8, 0], "rigid_bodies": [{ "mesh": "plane-8K.obj", "position": [0, -0.5, 0], "is_dof_fixed": true }, { "mesh": "cube.obj", "position": [0, 1, 0] }] } }