{ "scene_type": "distance_barrier_rb_problem", "timestep": 0.01, "max_time": 1, "rigid_body_problem": { "coefficient_restitution": -1, "gravity": [0, 0, 0], "rigid_bodies": [{ "mesh": "erleben/spike.obj", "position": [-4.9, 2.0001, 0], "rotation": [0, 0, 180], "linear_velocity": [10, 0, 0] }, { "mesh": "plane.obj", "type": "static", "position": [0, -1.0, 0] } ] } }