{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949870,-0.312646,0.000000,0.000000,0.174744,-0.530902,0.829221,0.000000,-0.258707,0.785993,0.561503,0.000000,-1651809.728082,5018470.857644,3561128.838152,1],    "boundingVolume": {    "region": [1.888688,0.596099,1.888859,0.596304,0.000000,20.275392]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1436965.b3dm"}}}