{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949118,-0.314922,0.000000,0.000000,0.116070,-0.349813,0.929601,0.000000,-0.292483,0.881492,0.370710,0.000000,-1866355.608582,5624862.836009,2349693.014362,1],    "boundingVolume": {    "region": [1.891116,0.379716,1.891225,0.379831,0.000000,65.359440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76212.b3dm"}}}