{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950485,-0.310769,0.000000,0.000000,0.173948,-0.532020,0.828672,0.000000,-0.256982,0.785977,0.562317,0.000000,-1640803.399269,5018384.175642,3566300.572524,1],    "boundingVolume": {    "region": [1.886750,0.597135,1.886847,0.597234,0.000000,8.662907]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1325524.b3dm"}}}