{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950626,-0.310339,0.000000,0.000000,0.173627,-0.531850,0.828848,0.000000,-0.256681,0.786262,0.562056,0.000000,-1638881.256336,5020197.666654,3564642.841461,1],    "boundingVolume": {    "region": [1.886263,0.596785,1.886429,0.596954,0.000000,8.802436]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396258.b3dm"}}}