{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857925,-0.513775,0.000000,0.000000,0.263077,-0.439298,0.858957,0.000000,-0.440530,0.735618,0.514587,0.000000,-2812254.416675,4696036.074072,3263026.836628,1],    "boundingVolume": {    "region": [2.110293,0.540463,2.110457,0.540588,0.000000,30.492566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_400739.b3dm"}}}