{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950699,-0.310116,0.000000,0.000000,0.173433,-0.531681,0.828997,0.000000,-0.256543,0.786465,0.561835,0.000000,-1638000.336056,5021489.189989,3563237.808672,1],    "boundingVolume": {    "region": [1.886029,0.596518,1.886194,0.596687,0.000000,8.791633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/2_1392417.b3dm"}}}