(last edit version: v1.7.0)
Effects can access view properties via the view namespace This allows things like LODs, view dependent effects (DOF, ..), and more.
By default, if no view is available we register one at the world's origin.
Play In Editor / Game
For Play, Simulate or Packaged games, we create a single view for each ULocalPlayer (which references the player controller).
For VR experiences, we also issue a single view, which corresponds to the non stereoscopic view.
In Editor, a single view is created per viewport (except for level editors, which will always have one view assigned to the currently focused viewport).
If any of this doesn't work for your game scenario, and you would like that we extend this a bit more, let us know ! firstname.lastname@example.org