{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948946,-0.315439,0.000000,0.000000,0.176013,-0.529508,0.829844,0.000000,-0.261215,0.785824,0.560577,0.000000,-1667822.727565,5017374.803628,3555244.488922,1],    "boundingVolume": {    "region": [1.891668,0.594987,1.891762,0.595178,0.000000,8.807851]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1075348.b3dm"}}}