I have a small problem in the development of my game.
I’m creating a game with a style similar to diablo 3. Would like to know how to make a smooth transition from an opaque material for a completely transparent?
Its something like this video: http://www.youtube.com/watch?feature=player_detailpage&v=-M5Xd4tZdFQ#t=644
When the player enter in the tunnel, the ceiling has a smoth fade-out…