{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950085,-0.311990,0.000000,0.000000,0.174500,-0.531396,0.828956,0.000000,-0.258080,0.785918,0.561896,0.000000,-1647814.822709,5017999.198404,3563626.544766,1],    "boundingVolume": {    "region": [1.888014,0.596572,1.888152,0.596781,0.000000,8.799781]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1399857.b3dm"}}}