{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949123,-0.314905,0.000000,0.000000,0.116074,-0.349847,0.929588,0.000000,-0.292463,0.881484,0.370744,0.000000,-1866227.554675,5624815.814052,2349905.843766,1],    "boundingVolume": {    "region": [1.891098,0.379752,1.891207,0.379867,0.000000,65.359440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76527.b3dm"}}}