{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948972,-0.315361,0.000000,0.000000,0.175994,-0.529594,0.829793,0.000000,-0.261135,0.785797,0.560653,0.000000,-1667311.002748,5017202.160547,3555724.880323,1],    "boundingVolume": {    "region": [1.891586,0.595079,1.891681,0.595269,0.000000,8.584053]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1074038.b3dm"}}}