{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950393,-0.311052,0.000000,0.000000,0.173954,-0.531502,0.829003,0.000000,-0.257320,0.786217,0.561826,0.000000,-1642956.826130,5019908.231884,3563183.866844,1],    "boundingVolume": {    "region": [1.887048,0.596543,1.887145,0.596641,0.000000,8.784401]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1392025.b3dm"}}}