{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950672,-0.310197,0.000000,0.000000,0.173558,-0.531909,0.828824,0.000000,-0.256557,0.786278,0.562091,0.000000,-1638086.012647,5020298.760956,3564864.497749,1],    "boundingVolume": {    "region": [1.886114,0.596827,1.886279,0.596996,0.000000,8.758891]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/4_1396646.b3dm"}}}