{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949058,-0.315102,0.000000,0.000000,0.176144,-0.530530,0.829163,0.000000,-0.260721,0.785266,0.561589,0.000000,-1664669.967582,5013828.445995,3561675.964705,1],    "boundingVolume": {    "region": [1.891292,0.596252,1.891429,0.596358,0.000000,8.415152]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1372817.b3dm"}}}