{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949285,-0.314417,0.000000,0.000000,0.175755,-0.530638,0.829177,0.000000,-0.260158,0.785467,0.561569,0.000000,-1661078.538023,5015112.671227,3561545.550822,1],    "boundingVolume": {    "region": [1.890589,0.596240,1.890688,0.596321,0.000000,8.651756]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_1447465.b3dm"}}}