I got the problem that the small branches on my tree, which are made with planes and alpha channel, desaturate on larger distances. The problem is hard to describe so I made some screenshots. On the left hand side is my tree, the other is a fh2 tree. On the upper right side of my tree, the branches are kind of white.
If you zoom in you can see that they have a white edge around them. I think that this happens only in areas where the lightning is bright.
as there are no such edges in the lower left area of the tree, where the branches are darker.
The FH2 tree does not show these artefacts.
This looks bad from the distance and ingame it looks even worse.
I use a DXT 5 interpolated alpha texture with mipmaps in the color slot of the static mesh material.
What exactly is used by the fh2 trees?
Do I have to consider something special for the lightmap samples or something else about lightning I dont know yet?