{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950842,-0.309676,0.000000,0.000000,0.114043,-0.350162,0.929721,0.000000,-0.287649,0.883208,0.370408,0.000000,-1835506.548336,5635809.545409,2347775.463954,1],    "boundingVolume": {    "region": [1.885575,0.379409,1.885723,0.379487,0.000000,6.524325]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/12/20_3855.b3dm"}}}