{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949462,-0.313882,0.000000,0.000000,0.175555,-0.531036,0.828964,0.000000,-0.259648,0.785410,0.561884,0.000000,-1657825.749800,5014754.280003,3563551.695355,1],    "boundingVolume": {    "region": [1.890025,0.596651,1.890126,0.596673,0.000000,16.521569]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/8/12_1414820.b3dm"}}}