{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950754,-0.309946,0.000000,0.000000,0.173371,-0.531814,0.828925,0.000000,-0.256380,0.786441,0.561942,0.000000,-1636957.587704,5021340.776687,3563921.476235,1],    "boundingVolume": {    "region": [1.885850,0.596648,1.886015,0.596817,0.000000,8.777975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1387126.b3dm"}}}