{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896743,-0.442551,0.000000,0.000000,0.282686,-0.572807,0.769403,0.000000,-0.339564,0.688061,0.641302,0.000000,-2168774.545163,4394600.886119,4068534.491406,1],    "boundingVolume": {    "region": [2.029146,0.696138,2.029329,0.696250,0.000000,45.244429]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_472939.b3dm"}}}