{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950081,-0.312003,0.000000,0.000000,0.173929,-0.529632,0.830204,0.000000,-0.258483,0.787109,0.560041,0.000000,-1650376.625793,5025565.936548,3551837.992089,1],    "boundingVolume": {    "region": [1.888015,0.594370,1.888179,0.594501,0.000000,8.638149]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1458068.b3dm"}}}