{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950185,-0.311688,0.000000,0.000000,0.173973,-0.530358,0.829731,0.000000,-0.258074,0.786742,0.560745,0.000000,-1647767.000390,5023237.334185,3556310.650693,1],    "boundingVolume": {    "region": [1.887716,0.595227,1.887815,0.595344,0.000000,8.672393]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1454469.b3dm"}}}