{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950504,-0.310714,0.000000,0.000000,0.173748,-0.531512,0.829040,0.000000,-0.257051,0.786344,0.561772,0.000000,-1641240.192729,5020716.832997,3562838.023269,1],    "boundingVolume": {    "region": [1.886691,0.596477,1.886789,0.596576,0.000000,12.809321]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/5_1390286.b3dm"}}}