{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948971,-0.315362,0.000000,0.000000,0.175982,-0.529556,0.829820,0.000000,-0.261144,0.785822,0.560613,0.000000,-1667370.244971,5017362.624640,3555472.371568,1],    "boundingVolume": {    "region": [1.891587,0.595031,1.891682,0.595221,0.000000,8.807851]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1074836.b3dm"}}}