{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949452,-0.313912,0.000000,0.000000,0.175467,-0.530712,0.829190,0.000000,-0.259745,0.785618,0.561548,0.000000,-1658440.093793,5016077.780340,3561416.861280,1],    "boundingVolume": {    "region": [1.890058,0.596215,1.890157,0.596297,0.000000,6.768387]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1358466.b3dm"}}}