{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950073,-0.312027,0.000000,0.000000,0.174507,-0.531346,0.828987,0.000000,-0.258121,0.785937,0.561850,0.000000,-1648073.539038,5018121.665207,3563336.399372,1],    "boundingVolume": {    "region": [1.888053,0.596517,1.888191,0.596725,0.000000,8.673000]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1399383.b3dm"}}}