{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949449,-0.313922,0.000000,0.000000,0.175469,-0.530701,0.829197,0.000000,-0.259755,0.785622,0.561539,0.000000,-1658506.063157,5016099.250424,3561356.308775,1],    "boundingVolume": {    "region": [1.890068,0.596204,1.890167,0.596285,0.000000,8.656528]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1443831.b3dm"}}}