{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950882,-0.309555,0.000000,0.000000,0.172976,-0.531342,0.829310,0.000000,-0.256177,0.786915,0.561371,0.000000,-1635655.765251,5024357.252127,3560290.491741,1],    "boundingVolume": {    "region": [1.885449,0.595932,1.885594,0.596152,0.000000,8.820765]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1422728.b3dm"}}}