{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949111,-0.314940,0.000000,0.000000,0.116084,-0.349833,0.929592,0.000000,-0.292497,0.881477,0.370733,0.000000,-1866447.374157,5624770.237903,2349840.788917,1],    "boundingVolume": {    "region": [1.891136,0.379741,1.891244,0.379856,0.000000,65.359440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76435.b3dm"}}}