{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949055,-0.315111,0.000000,0.000000,0.176146,-0.530519,0.829170,0.000000,-0.260730,0.785270,0.561579,0.000000,-1664729.121404,5013854.398125,3561612.212430,1],    "boundingVolume": {    "region": [1.891301,0.596240,1.891438,0.596346,0.000000,8.634933]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1372842.b3dm"}}}