{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950632,-0.310321,0.000000,0.000000,0.173615,-0.531851,0.828850,0.000000,-0.256666,0.786269,0.562053,0.000000,-1638787.136451,5020239.891744,3564626.754028,1],    "boundingVolume": {    "region": [1.886244,0.596782,1.886409,0.596951,0.000000,8.802436]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396213.b3dm"}}}