{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949068,-0.315071,0.000000,0.000000,0.176209,-0.530782,0.828988,0.000000,-0.260639,0.785107,0.561848,0.000000,-1664153.685096,5012821.957192,3563322.457969,1],    "boundingVolume": {    "region": [1.891277,0.596608,1.891379,0.596629,0.000000,9.660840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_1338483.b3dm"}}}