{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950215,-0.311594,0.000000,0.000000,0.174255,-0.531396,0.829007,0.000000,-0.257769,0.786075,0.561820,0.000000,-1645824.284634,5018998.937601,3563141.755388,1],    "boundingVolume": {    "region": [1.887590,0.596491,1.887742,0.596677,0.000000,8.785472]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1399024.b3dm"}}}