{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950099,-0.311948,0.000000,0.000000,0.173920,-0.529709,0.830157,0.000000,-0.258423,0.787079,0.560111,0.000000,-1649989.311662,5025376.643160,3552282.742623,1],    "boundingVolume": {    "region": [1.887957,0.594454,1.888120,0.594586,0.000000,8.638149]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1378332.b3dm"}}}