{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949560,-0.313586,0.000000,0.000000,0.174917,-0.529661,0.829978,0.000000,-0.259724,0.786460,0.560378,0.000000,-1658297.650945,5021433.043797,3553978.851117,1],    "boundingVolume": {    "region": [1.889683,0.594709,1.889845,0.594975,0.000000,8.810656]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1379233.b3dm"}}}