{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949656,-0.313296,0.000000,0.000000,0.174834,-0.529952,0.829810,0.000000,-0.259430,0.786379,0.560628,0.000000,-1656425.466364,5020919.887999,3555565.875839,1],    "boundingVolume": {    "region": [1.889377,0.595011,1.889539,0.595277,0.000000,8.811738]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1357126.b3dm"}}}