{
    "asset": {
        "version": "1.0"
    },
    "geometricError": 1000000,
    "root": {
        "boundingVolume": {
            "sphere": [
                0,
                0,
                10,
                141.4214
            ]
        },
        "refine": "REPLACE",
        "geometricError": 50000
    }
}