Hi, so I’ve reached a dead end on my strategy game. I want fog of war that is over unopened rooms but when you open the rooms the fog of war should disappear some strategy games have done this like Invisible Inc and Enter the gungeon just to name some examples. Any help is appreciated, thanks 
Why not do overlapping square planes with alpha channels that fade out on the edges? They will obscure the rooms, and when get destroyed based on proximity.