{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950695,-0.310129,0.000000,0.000000,0.173149,-0.530785,0.829631,0.000000,-0.256752,0.787068,0.560894,0.000000,-1639324.374460,5025322.811753,3557259.561481,1],    "boundingVolume": {    "region": [1.886067,0.595408,1.886183,0.595523,0.000000,8.047162]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1344691.b3dm"}}}