{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950543,-0.310593,0.000000,0.000000,0.173705,-0.531611,0.828985,0.000000,-0.256934,0.786325,0.561853,0.000000,-1640494.473234,5020594.910110,3563349.789276,1],    "boundingVolume": {    "region": [1.886564,0.596574,1.886662,0.596673,0.000000,18.047987]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1393333.b3dm"}}}