{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949129,-0.314888,0.000000,0.000000,0.175942,-0.530321,0.829339,0.000000,-0.260600,0.785493,0.561327,0.000000,-1663895.207531,5015277.070721,3560009.283924,1],    "boundingVolume": {    "region": [1.891066,0.595935,1.891204,0.596042,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1360949.b3dm"}}}