I want to simulate what is essentially a very large bubble/shield that makes everything inside it invisible. Everything inside this area will disappear when the player is not inside it, and the normal wilderness will reappear. This includes items, NPCs, and Creatures.

For simple things like static trees, buildings, and maybe even NPCs, I think a script to check if the player is, either in range of an object, or in the cell, and then enable/disable everything, might work. This may cause a lot of lag though, I don't really know. Could I cover this by creating some sort of effect on the screen, since you're exiting the spell's range?

Also, how could I do this for objects that the player brings into that area as well?


Edit: I also just realized another issue. If the player enters the bubble, and there are monsters already in it, I need them to disappear while he's in the bubble... or just prevent them from entering the cell altogether. Is there any way to do those things?