Global Fog Doesn't Affect Billboard Trees

Is there a solution for the GlobalFog shader not affecting billboard trees?



I've looked everywhere and cannot find a solution. I see people claiming it should work fine, but it clearly doesn't. I also verified that I don't have a custom billboard shader in my project that could be interferring.

[EDIT]
I'm using Unity 5.5.3f1 and the trees are just normal Unity trees.

 

seems to work here (tested in 2017.1.b7)

are those normal speedtrees?

 

Sorry, I forgot to add that I'm using Unity 5.5.3f1 and the trees are just normal Unity trees, not Speedtrees.

 

tried with those Nature/Tree... materials on cubes, works on 5.5.3p4.

if you add big cube there, with new material, and use same shader as the trees, does the fog work on that?

 

I don't know, but I tried on a completely different computer today in 5.53f1, 5.6, and the latest beta and all failed. I also tried in both Forward and Deferred rendering.

[EDIT]
This is with GlobalFog from legacy image effects. Is that what you're using?

[EDIT 2]
Also, are you sure your trees are billboards that seem to be working? Try setting your tree billboard distance to something very small so most trees will be billboards.

 

Also, this seems to work fine with SpeedTree billboards. It just doesn't work for regular Unity tree billboards.

 

yeah, looks like with unity tree billboards it doesn't work. (i used speedtrees)

frame debugger shows that globalfog is drawn first, then after that billboard trees,
using shader Hidden/TerrainEngine/Billboard Tree

and global fog script uses this attribute, https://docs.unity3d.com/ScriptReference/ImageEffectOpaque.html


*well looks like there are some possible fixes, https://forum.unity3d.com/threads/global-fog-and-transparent-shaders.123803/

** just modifying the billboard shader seems to work too, added cutoff, uses alphacutout,
https://github.com/UnityCommunity/U...s/3D/Terrain/Trees/Unity-BillboardTree.shader

 

I may be switching to AltTrees and their billboards seem to work fine. So hopefully I won't need to do any of the hack solutions. Thanks for all your help.

 

You can check this package. It does support global fog in the shaders.

Store Link: https://assetstore.unity.com/packages/3d/vegetation/massive-vegetation-121801

Forum: https://forum.unity.com/threads/rel...-in-seconds-and-draw-them-in-realtime.541280/

PS: I´m the author, so I´m not imparcial...

 

does it include shader that fixes problem and will work without system or is it just another rendering system for terrain?

 

Hi, sorry I missed this message.

It includes it's own shaders, and is not related at all to the terrain system. Billboards are created and rendered manually or automatically, searching for colliders to check for ground's height.

thanks