{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949115,-0.314929,0.000000,0.000000,0.116076,-0.349824,0.929596,0.000000,-0.292488,0.881485,0.370722,0.000000,-1866387.030275,5624819.693757,2349770.807001,1],    "boundingVolume": {    "region": [1.891124,0.379729,1.891232,0.379844,0.000000,65.359440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76315.b3dm"}}}