{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949000,-0.315276,0.000000,0.000000,0.115939,-0.348983,0.929930,0.000000,-0.292916,0.881698,0.369877,0.000000,-1869117.340096,5626165.257359,2344409.193706,1],    "boundingVolume": {    "region": [1.891491,0.378842,1.891596,0.378912,0.000000,25.148693]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/8/20_12864.b3dm"}}}