{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949516,-0.313719,0.000000,0.000000,0.114726,-0.347234,0.930734,0.000000,-0.291725,0.882949,0.367828,0.000000,-1861504.507222,5634121.954390,2331409.451567,1],    "boundingVolume": {    "region": [1.889819,0.376548,1.889987,0.376797,0.000000,10.391991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_29248.b3dm"}}}