{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949520,-0.313708,0.000000,0.000000,0.114721,-0.347234,0.930735,0.000000,-0.291715,0.882953,0.367827,0.000000,-1861441.594025,5634146.764990,2331399.790767,1],    "boundingVolume": {    "region": [1.889807,0.376546,1.889976,0.376796,0.000000,10.391991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_29243.b3dm"}}}