{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949053,-0.315117,0.000000,0.000000,0.176165,-0.530564,0.829137,0.000000,-0.260724,0.785237,0.561628,0.000000,-1664694.715564,5013643.979009,3561922.400734,1],    "boundingVolume": {    "region": [1.891307,0.596299,1.891445,0.596405,0.000000,8.634933]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1416526.b3dm"}}}