{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950218,-0.311584,0.000000,0.000000,0.174233,-0.531346,0.829045,0.000000,-0.257773,0.786113,0.561765,0.000000,-1645850.214499,5019241.091922,3562791.020706,1],    "boundingVolume": {    "region": [1.887580,0.596425,1.887732,0.596610,0.000000,8.777635]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1398340.b3dm"}}}