{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949070,-0.315066,0.000000,0.000000,0.176118,-0.530519,0.829175,0.000000,-0.260695,0.785288,0.561571,0.000000,-1664503.342436,5013967.761858,3561558.508461,1],    "boundingVolume": {    "region": [1.891254,0.596230,1.891391,0.596336,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447519.b3dm"}}}