{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950533,-0.310624,0.000000,0.000000,0.173391,-0.530591,0.829704,0.000000,-0.257184,0.787004,0.560785,0.000000,-1642086.644330,5024914.456143,3556566.985218,1],    "boundingVolume": {    "region": [1.886588,0.595277,1.886703,0.595391,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1450542.b3dm"}}}