Troubles with Tree Billboards in Unity 5

Unity Engine
1

Hi, for some time I have problem with tree billboards.
I was searching for solution for a long time but I can’t find final fix.
First I had trouble that ambient occlusion draw occlusion over fog on far objects like mountains, I tried with “Global Fog” camera, yeah it solved problem with AO but tree billboards was over fog, to solve problem with AO I edited AO script to have distance cutoff parameter and use default fog.
I am sure I don’t have any replacement tree billboards shader, my project using default one.

Now there are two problems with billboards.

First: Billboard trees aren’t affected by light, my game has Day/Night cycle and when there is night, billboard trees are very bright.

Second: Billboard trees not write depth buffer so when I using Advanced Color Corretion (depth) there are bugs with billboard, with it there is horizontal color line on billboards.
On screen you can see ugly horizontal line which separates trees color :confused:
Need to know how fix this :frowning:

Screen:

1042×577 515 KB

Thanks in advance.

2

Noone help?

For whole day I was searching for solution to make light affect billboards without succes :confused: I tried to make own shaders etc. but billboards are just not lighted.