{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950485,-0.310770,0.000000,0.000000,0.173443,-0.530473,0.829768,0.000000,-0.257325,0.787027,0.560690,0.000000,-1642986.756958,5025053.850383,3555958.386942,1],    "boundingVolume": {    "region": [1.886749,0.595160,1.886849,0.595277,0.000000,8.653017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1345648.b3dm"}}}