{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950657,-0.310245,0.000000,0.000000,0.173572,-0.531863,0.828851,0.000000,-0.256604,0.786290,0.562051,0.000000,-1638390.616847,5020378.734081,3564613.573878,1],    "boundingVolume": {    "region": [1.886164,0.596779,1.886330,0.596948,0.000000,8.793080]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396187.b3dm"}}}