{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948994,-0.315294,0.000000,0.000000,0.175962,-0.529622,0.829782,0.000000,-0.261076,0.785805,0.560670,0.000000,-1666932.799342,5017251.936237,3555831.249781,1],    "boundingVolume": {    "region": [1.891515,0.595099,1.891610,0.595289,0.000000,8.774862]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/29_1073738.b3dm"}}}