{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950221,-0.311576,0.000000,0.000000,0.174381,-0.531813,0.828713,0.000000,-0.257662,0.785798,0.562255,0.000000,-1645145.276731,5017242.195285,3565909.682590,1],    "boundingVolume": {    "region": [1.887571,0.597018,1.887723,0.597203,0.000000,8.770137]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1326092.b3dm"}}}