{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948958,-0.315402,0.000000,0.000000,0.175848,-0.529080,0.830152,0.000000,-0.261282,0.786129,0.560119,0.000000,-1668248.202524,5019310.289094,3552331.297813,1],    "boundingVolume": {    "region": [1.891629,0.594434,1.891723,0.594625,0.000000,8.804649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/26_1092868.b3dm"}}}