{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950553,-0.310564,0.000000,0.000000,0.173359,-0.530605,0.829702,0.000000,-0.257134,0.787019,0.560788,0.000000,-1641765.663622,5025005.963247,3556585.755279,1],    "boundingVolume": {    "region": [1.886525,0.595280,1.886640,0.595395,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1345353.b3dm"}}}