Lol Inge,
The wall shader has only 3 versions up till now for BV. The changes were for shadow map, poolwall and a thumbnail material.
http://www.sims2wiki.info/wiki.php?title=Talk:ShaderWallThe wallmask has a cutout setting to cut out the shape illustrated in the wallmask txtr file.
lol, all you really need is to go to your BV's "...\TSData\Res\Catalog\Scripts" folder, open the wall.txt and alter the following:
requiresFlatBottom false <-- to make the wall to form on uneven ground
requiresFlatTop false <-- this the setting to fix the wallmask distortion
submersible true <-- to make the wall to build through the terrain water
Then, your wall will act as Easy wall or unlevelled walls... while the windows will look fine again.
But if you use a dummy/compressed level above the first level of room(s), then you can make it weather proof and avoid the distorted wallmask shape when without any modification on the wall.txt in the BV one.
Does this work onlly with wall hacks? I have been having the weird window effect since I installed BV (it didn't seem to happen in Seasons) when I used the floor elevation. I thought that since I'm not awesome, it was my lack of building skills.
What I'd like to know is that if I modify my BV's "...\TSData\Res\Catalog\Scripts" folder, and insert the text you stated above into the wall.txt folder, will the weird window effect be fixed, or do I need to install the wall hacks for this procedure to work?