{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949071,-0.315063,0.000000,0.000000,0.176115,-0.530516,0.829178,0.000000,-0.260693,0.785291,0.561567,0.000000,-1664494.069381,5013988.294251,3561534.101049,1],    "boundingVolume": {    "region": [1.891251,0.596225,1.891388,0.596331,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447407.b3dm"}}}