{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948991,-0.315304,0.000000,0.000000,0.175963,-0.529607,0.829791,0.000000,-0.261087,0.785811,0.560656,0.000000,-1667006.356644,5017289.999437,3555743.648405,1],    "boundingVolume": {    "region": [1.891526,0.595082,1.891621,0.595273,0.000000,8.814698]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/29_1073976.b3dm"}}}