{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948857,-0.315707,0.000000,0.000000,0.176364,-0.530060,0.829417,0.000000,-0.261302,0.785342,0.561212,0.000000,-1668377.606064,5014307.791530,3559281.655988,1],    "boundingVolume": {    "region": [1.891929,0.595797,1.892067,0.595903,0.000000,8.812064]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1147439.b3dm"}}}