{ "scene_type": "distance_barrier_rb_problem", "solver": "ipc_solver", "timestep": 0.01, "max_time": 3.0, "distance_barrier_constraint": { "initial_barrier_activation_distance": 1e-4 }, "rigid_body_problem": { "coefficient_restitution": -1, "gravity": [0, -9.81, 0], "rigid_bodies": [{ "mesh": "plane.obj", "position": [0, -0.5, 0], "type": "static" }, { "mesh": "cube.obj", "position": [-1, 0, 0], "type": "static" }, { "mesh": "cube.obj", "position": [0, 0, -1], "type": "static" }, { "mesh": "cube.obj", "position": [1, 0, 0], "type": "static" }, { "mesh": "tet-corner.obj", "position": [-0.4995, 0.6, -0.4995], "scale": 0.999 }] } }