{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948638,-0.316363,0.000000,0.000000,0.176496,-0.529237,0.829914,0.000000,-0.262003,0.785637,0.560473,0.000000,-1672850.086535,5016174.689037,3554580.403432,1],    "boundingVolume": {    "region": [1.892641,0.594845,1.892737,0.595068,0.000000,8.656546]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1075968.b3dm"}}}