What's the most efficient way to do billboarding sprites in Unity 5?
I want to make a forest of sprite trees in 3d space. Those sprites need to face the camera at all times. I am working on VERY performance restricted hardware - I need the game to run on mobile at 60+ FPS - the scripts have their overhead and moving/turnign trees cannot be static, so I cant use static batching for them.
The naive method of adding a script to each tree that makes it LookAt the camera each update is not good enough in terms of FPS.
I know the grass/details for terrain uses billboards, but it uses the sprite only as a silhouette for the grass and paints it with a flat colour.