{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948861,-0.315694,0.000000,0.000000,0.176406,-0.530213,0.829310,0.000000,-0.261257,0.785244,0.561371,0.000000,-1668095.882446,5013682.137122,3560288.139007,1],    "boundingVolume": {    "region": [1.891916,0.595988,1.892053,0.596095,0.000000,8.808038]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_1068498.b3dm"}}}