{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950630,-0.310325,0.000000,0.000000,0.173627,-0.531877,0.828831,0.000000,-0.256664,0.786250,0.562081,0.000000,-1638774.256035,5020118.910573,3564801.872758,1],    "boundingVolume": {    "region": [1.886249,0.596815,1.886414,0.596984,0.000000,8.821139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396587.b3dm"}}}