Scene

From Yogurt3D Wiki

Scenes are the container for all the visual and non visual items in your 3D world. They how lights, cameras, renderable scene objects, 3d sounds etc. Simply every object that implements ISceneObject can be placed in a scene.

Other than holding scene objects using Scene [IScene AsDoc] you can also set scene properties from this class such as screen space effects, skyboxes, scene colors.