{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950636,-0.310310,0.000000,0.000000,0.173613,-0.531865,0.828841,0.000000,-0.256655,0.786263,0.562066,0.000000,-1638712.885248,5020207.209766,3564706.379169,1],    "boundingVolume": {    "region": [1.886232,0.596797,1.886398,0.596966,0.000000,8.821139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396396.b3dm"}}}