{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950643,-0.310288,0.000000,0.000000,0.173681,-0.532114,0.828668,0.000000,-0.256582,0.786103,0.562323,0.000000,-1638251.127922,5019188.186301,3566342.173092,1],    "boundingVolume": {    "region": [1.886209,0.597108,1.886374,0.597277,0.000000,8.779138]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/6_1384580.b3dm"}}}