{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950744,-0.309976,0.000000,0.000000,0.173382,-0.531789,0.828938,0.000000,-0.256409,0.786446,0.561922,0.000000,-1637145.918706,5021372.868029,3563790.632847,1],    "boundingVolume": {    "region": [1.885882,0.596623,1.886047,0.596792,0.000000,8.777975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1386938.b3dm"}}}