{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950390,-0.311061,0.000000,0.000000,0.173950,-0.531470,0.829024,0.000000,-0.257334,0.786235,0.561795,0.000000,-1643047.166093,5020022.172666,3562983.033820,1],    "boundingVolume": {    "region": [1.887057,0.596504,1.887155,0.596603,0.000000,8.767603]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/5_1390894.b3dm"}}}