{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949215,-0.314628,0.000000,0.000000,0.115917,-0.349717,0.929657,0.000000,-0.292228,0.881635,0.370570,0.000000,-1864724.563845,5625776.798442,2348805.708323,1],    "boundingVolume": {    "region": [1.890807,0.379565,1.890915,0.379681,0.000000,40.140716]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/12/18_74856.b3dm"}}}