{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950645,-0.310280,0.000000,0.000000,0.173676,-0.532113,0.828669,0.000000,-0.256577,0.786106,0.562321,0.000000,-1638216.398527,5019208.794915,3566329.209569,1],    "boundingVolume": {    "region": [1.886202,0.597106,1.886367,0.597275,0.000000,8.779138]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/6_1384563.b3dm"}}}