{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949052,-0.315119,0.000000,0.000000,0.176142,-0.530491,0.829188,0.000000,-0.260743,0.785286,0.561551,0.000000,-1664812.440495,5013954.178598,3561433.996755,1],    "boundingVolume": {    "region": [1.891310,0.596206,1.891447,0.596312,0.000000,8.634933]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1372920.b3dm"}}}