{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949619,-0.313407,0.000000,0.000000,0.175183,-0.530802,0.829192,0.000000,-0.259327,0.785758,0.561545,0.000000,-1655774.058557,5016973.010017,3561396.490784,1],    "boundingVolume": {    "region": [1.889526,0.596211,1.889624,0.596293,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443996.b3dm"}}}