{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950670,-0.310205,0.000000,0.000000,0.173564,-0.531912,0.828821,0.000000,-0.256562,0.786273,0.562095,0.000000,-1638122.227213,5020266.320790,3564893.346545,1],    "boundingVolume": {    "region": [1.886123,0.596833,1.886288,0.597002,0.000000,8.758891]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/4_1396683.b3dm"}}}