{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950584,-0.310468,0.000000,0.000000,0.173312,-0.530644,0.829687,0.000000,-0.257050,0.787030,0.560811,0.000000,-1641228.871532,5025078.776729,3556729.655161,1],    "boundingVolume": {    "region": [1.886424,0.595308,1.886539,0.595422,0.000000,8.776167]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/11/9_1450646.b3dm"}}}