{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950388,-0.311066,0.000000,0.000000,0.173970,-0.531524,0.828985,0.000000,-0.257325,0.786197,0.561852,0.000000,-1642992.094288,5019779.641435,3563347.656467,1],    "boundingVolume": {    "region": [1.887061,0.596574,1.887159,0.596672,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1393105.b3dm"}}}