{
    "description": "The task involves an elastic ball released to undergo free fall.",
    "prompt": "Static frontal camera view: A dark elastic ball (mass ≈ 121 g) is suspended high above a wooden plank, which rests on two end supports atop a black perforated optical table. Coefficient of friction ≈ 0.81; coefficient of restitution ≈ 0.58. When released, the ball undergoes free fall, followed by a sequence of successive bounces with diminishing peak heights, before finally coming to rest on either the plank or the table surface.",
    "assets": {
        "ball": {
            "model": "../../assets/obj/ball-6.obj",
            "material": {
                "soft": {
                    "mass": 0.121,
                    "density": 1069.8749,
                    "friction": 0.808698,
                    "restitution": 0.576733
                }
            }
        }
    },
    "tasks": {
        "default": {
            "assets": ["ball"],
            "translation": {
                "ball": [0.418911, 0.435316, 0.451023],
                "ground": [0, 0, 0.013297]
            },
            "orientation": {
                "ball": [0, 0, 0]
            },
            "fixed": {
                "ball": false
            },
            "kinematic": {
                "ball": false
            },
            "record": {
                "assets": ["ball"],
                "dim": ["x", "y", "z"],
                "fps": 30
            }
        }
    }
}