{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950343,-0.311203,0.000000,0.000000,0.115190,-0.351763,0.928975,0.000000,-0.288833,0.882028,0.372293,0.000000,-1843069.086273,5628308.820783,2359733.023667,1],    "boundingVolume": {    "region": [1.887192,0.381427,1.887318,0.381530,0.000000,9.668020]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/12/15_66664.b3dm"}}}