{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948964,-0.315384,0.000000,0.000000,0.176000,-0.529571,0.829807,0.000000,-0.261158,0.785804,0.560633,0.000000,-1667456.421696,5017244.730758,3555597.477730,1],    "boundingVolume": {    "region": [1.891610,0.595054,1.891704,0.595245,0.000000,8.807851]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1074440.b3dm"}}}