{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949131,-0.314882,0.000000,0.000000,0.116077,-0.349885,0.929573,0.000000,-0.292437,0.881477,0.370782,0.000000,-1866064.699793,5624768.645775,2350146.442015,1],    "boundingVolume": {    "region": [1.891075,0.379793,1.891183,0.379908,0.000000,69.067500]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_77076.b3dm"}}}