{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950856,-0.309634,0.000000,0.000000,0.173008,-0.531289,0.829337,0.000000,-0.256251,0.786920,0.561330,0.000000,-1636129.311606,5024388.166235,3560031.017725,1],    "boundingVolume": {    "region": [1.885532,0.595883,1.885678,0.596102,0.000000,8.818891]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1422428.b3dm"}}}