{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949651,-0.313311,0.000000,0.000000,0.175042,-0.530557,0.829379,0.000000,-0.259307,0.785963,0.561268,0.000000,-1655639.879967,5018275.494939,3559635.241389,1],    "boundingVolume": {    "region": [1.889424,0.595876,1.889523,0.595958,0.000000,8.062318]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1351296.b3dm"}}}