{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950395,-0.311047,0.000000,0.000000,0.173956,-0.531517,0.828993,0.000000,-0.257312,0.786209,0.561841,0.000000,-1642907.751356,5019858.603982,3563275.790559,1],    "boundingVolume": {    "region": [1.887042,0.596560,1.887139,0.596659,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1392645.b3dm"}}}