{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948617,-0.316426,0.000000,0.000000,0.117004,-0.350767,0.929125,0.000000,-0.293728,0.880570,0.371915,0.000000,-1874302.592537,5618997.323148,2357337.230821,1],    "boundingVolume": {    "region": [1.892672,0.380966,1.892839,0.381177,0.000000,6.962002]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_68893.b3dm"}}}