{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858253,-0.513226,0.000000,0.000000,0.263018,-0.439837,0.858700,0.000000,-0.439927,0.735676,0.515019,0.000000,-2808407.571908,4696416.830413,3265772.329902,1],    "boundingVolume": {    "region": [2.109654,0.540967,2.109818,0.541092,0.000000,48.306900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_466311.b3dm"}}}