{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950570,-0.310512,0.000000,0.000000,0.173658,-0.531618,0.828990,0.000000,-0.256869,0.786352,0.561845,0.000000,-1640076.592963,5020766.075637,3563301.306435,1],    "boundingVolume": {    "region": [1.886479,0.596565,1.886577,0.596664,0.000000,18.047987]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1392823.b3dm"}}}