{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950090,-0.311976,0.000000,0.000000,0.173932,-0.529692,0.830165,0.000000,-0.258449,0.787079,0.560099,0.000000,-1650155.195209,5025375.512616,3552207.791694,1],    "boundingVolume": {    "region": [1.887986,0.594440,1.888150,0.594571,0.000000,8.638149]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1378458.b3dm"}}}