{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951856,-0.306545,0.000000,0.000000,0.112590,-0.349605,0.930108,0.000000,-0.284860,0.884522,0.369426,0.000000,-1817705.305830,5644182.458767,2341544.758624,1],    "boundingVolume": {    "region": [1.882275,0.378331,1.882439,0.378451,0.000000,20.735773]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_45619.b3dm"}}}