{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948956,-0.315408,0.000000,0.000000,0.176019,-0.529581,0.829796,0.000000,-0.261175,0.785787,0.560648,0.000000,-1667565.836448,5017137.815709,3555696.360825,1],    "boundingVolume": {    "region": [1.891636,0.595073,1.891731,0.595264,0.000000,8.654459]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1074110.b3dm"}}}