{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950739,-0.309992,0.000000,0.000000,0.173330,-0.531601,0.829070,0.000000,-0.256463,0.786568,0.561727,0.000000,-1637488.213105,5022145.237934,3562553.144693,1],    "boundingVolume": {    "region": [1.885898,0.596387,1.886063,0.596557,0.000000,8.812708]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/1_1386066.b3dm"}}}