I have been developing an overhead 2D game for a while now, and the new 2D features in Unity look really promising. The problem i’m facing is that my game has been on a terrain this whole time, and switching this game into an actual 2D game currently means I can’t have it on a terrain. Is there any solution for this? Can I rotate terrains, or change the 2D features to work on an x-z basis?
AFAIK, you can neither rotate terrains nor change the axes used for “Unity 2d”, so I don’t think you can combine them in the way you’re attempting.
What benefit are you getting from using the Unity terrain from a static 2d top-down camera?
As far as solutions go, you can turn the 2D quads system on its side which was promising, but all of the 2D physics still operate in an X,Y environment only. So, tanoshimi is correct there is currently no way to get 2D and terrains to work together currently.