{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952579,-0.304291,0.000000,0.000000,0.113401,-0.354999,0.927963,0.000000,-0.282106,0.883129,0.374831,0.000000,-1800158.665782,5635371.190449,2375838.816790,1],    "boundingVolume": {    "region": [1.879917,0.384151,1.880064,0.384279,0.000000,8.906744]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/21_39412.b3dm"}}}