{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948741,-0.316055,0.000000,0.000000,0.176364,-0.529413,0.829830,0.000000,-0.261722,0.785641,0.560598,0.000000,-1671055.303704,5016203.948451,3555377.852651,1],    "boundingVolume": {    "region": [1.892317,0.594996,1.892413,0.595220,0.000000,8.808239]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1178649.b3dm"}}}