{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949725,-0.313086,0.000000,0.000000,0.175041,-0.530976,0.829111,0.000000,-0.259036,0.785768,0.561666,0.000000,-1653914.712288,5017036.744424,3562165.408182,1],    "boundingVolume": {    "region": [1.889160,0.596314,1.889313,0.596482,0.000000,7.712188]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1335720.b3dm"}}}