{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949048,-0.315132,0.000000,0.000000,0.176072,-0.530257,0.829353,0.000000,-0.260806,0.785439,0.561308,0.000000,-1665211.392869,5014928.459952,3559885.804780,1],    "boundingVolume": {    "region": [1.891324,0.595912,1.891461,0.596018,0.000000,14.029451]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1374121.b3dm"}}}