{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950767,-0.309907,0.000000,0.000000,0.173401,-0.531978,0.828813,0.000000,-0.256313,0.786345,0.562107,0.000000,-1636531.528898,5020730.815372,3564969.273537,1],    "boundingVolume": {    "region": [1.885809,0.596847,1.885974,0.597016,0.000000,8.819100]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1388025.b3dm"}}}