Hey,
So, my map requires 2 different sky shaders, those parts are separated by teleport.
While both sectors display skybox correctly, the lighting will be from both skyboxes, as seen from screenshots below.
http://localhostr.com/files/BemxO0a/shot0011.jpg
http://localhostr.com/files/7m85qly/shot0010.jpg
Is there some kind of shader trick to get both skies to show their own light?
-P
What happens if you place a big wall in between?
Nothing much. 
But I managed to get it working by changing light direction, color and elevation to same on both skyboxes.
Cheers all! :]
if both parts are not visible to each other you can seperate them with are portals
did that some time ago with a fun map
and the shaders must have diffrent names…
never released this official…
www.ischbinz.de/maps/burgen1.pk3
i had the same problem except i wanted it to snow in one part of the map. the only way to make that work was to place the area i didnt want snow on outside of the mapcoordsmins/ max.
will the light amount be doubled when both skybox shaders affect the whole map?
In fact, I also have the snow on one skybox but that’s easy fix. Just delete parts of tracemap with photoshop where you don’t want to see snow.
And as far as I saw, it didn’t double the light intensity. I used q3map_sunext with deviance 3 and samples 16, smooths out the edges of the shadows very nicely, even if it did double it’s really hard to see.
-P
the trick with the tracemap is nice but i guess you cant put arty and airstrikes there anymore.
