{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948864,-0.315686,0.000000,0.000000,0.176477,-0.530442,0.829149,0.000000,-0.261199,0.785092,0.561610,0.000000,-1667723.788624,5012718.129580,3561809.284915,1],    "boundingVolume": {    "region": [1.891907,0.596277,1.892044,0.596384,0.000000,8.505044]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1056618.b3dm"}}}