{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949268,-0.314470,0.000000,0.000000,0.175861,-0.530859,0.829013,0.000000,-0.260150,0.785296,0.561812,0.000000,-1661026.305897,5014023.714259,3563092.372674,1],    "boundingVolume": {    "region": [1.890644,0.596564,1.890745,0.596585,0.000000,12.158454]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/8_1417993.b3dm"}}}