{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950648,-0.310272,0.000000,0.000000,0.173674,-0.532125,0.828662,0.000000,-0.256567,0.786102,0.562332,0.000000,-1638156.950278,5019181.307316,3566394.760237,1],    "boundingVolume": {    "region": [1.886193,0.597118,1.886358,0.597287,0.000000,8.779138]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/6_1384686.b3dm"}}}