{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950588,-0.310456,0.000000,0.000000,0.173580,-0.531485,0.829092,0.000000,-0.256854,0.786464,0.561694,0.000000,-1639983.466089,5021479.641226,3562344.984266,1],    "boundingVolume": {    "region": [1.886420,0.596383,1.886518,0.596482,0.000000,10.918523]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/4_1388996.b3dm"}}}