{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858256,-0.513222,0.000000,0.000000,0.263012,-0.439832,0.858704,0.000000,-0.439925,0.735683,0.515012,0.000000,-2808397.559557,4696455.726238,3265725.321261,1],    "boundingVolume": {    "region": [2.109649,0.540959,2.109813,0.541084,0.000000,48.306900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_465634.b3dm"}}}