{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950537,-0.310612,0.000000,0.000000,0.173382,-0.530584,0.829710,0.000000,-0.257177,0.787014,0.560776,0.000000,-1642037.497117,5024972.233476,3556508.439026,1],    "boundingVolume": {    "region": [1.886575,0.595266,1.886691,0.595380,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1450515.b3dm"}}}