{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950573,-0.310500,0.000000,0.000000,0.173650,-0.531617,0.828993,0.000000,-0.256860,0.786357,0.561841,0.000000,-1640020.396683,5020801.717891,3563277.113495,1],    "boundingVolume": {    "region": [1.886467,0.596560,1.886564,0.596659,0.000000,14.679444]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1392646.b3dm"}}}