{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949433,-0.313970,0.000000,0.000000,0.175521,-0.530769,0.829142,0.000000,-0.259778,0.785556,0.561620,0.000000,-1658649.059221,5015683.558920,3561871.671441,1],    "boundingVolume": {    "region": [1.890119,0.596302,1.890218,0.596383,0.000000,13.162316]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1408893.b3dm"}}}