{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.891157,-0.453695,0.000000,0.000000,0.292038,-0.573626,0.765289,0.000000,-0.346239,0.680090,0.646217,0.000000,-2211452.687392,4343780.611666,4099804.684773,1],    "boundingVolume": {    "region": [2.041656,0.702574,2.041751,0.702660,0.000000,8.538198]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_2045464.b3dm"}}}