{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950562,-0.310533,0.000000,0.000000,0.173809,-0.532041,0.828687,0.000000,-0.256792,0.786056,0.562294,0.000000,-1639588.181227,5018885.040458,3566155.607649,1],    "boundingVolume": {    "region": [1.886501,0.597108,1.886599,0.597207,0.000000,8.750039]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1384274.b3dm"}}}