{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950297,-0.311345,0.000000,0.000000,0.173770,-0.530387,0.829755,0.000000,-0.257797,0.786858,0.560710,0.000000,-1645999.803922,5023977.094137,3556085.550206,1],    "boundingVolume": {    "region": [1.887354,0.595184,1.887454,0.595301,0.000000,8.729903]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_1454249.b3dm"}}}