I already extracted the texture and put a custom .vmt:
[quote]"LightmappedGeneric"
{
"$basetexture" "customMat/window_4x8_arch"
"$surfaceprop" "glass"
//"$alpha" .75
"$alphatest" 1
"$envmaptint" "[ .35 .35 .35 ]"
"$envmap" "env_cubemap"
"$envmapcontrast" 1
"$envmapsaturation" .25
}[/quote]
This does not work. The window cannot be seen through.
Questions:
1. How would I use $alpha or $alphatest or something else?
2. Do I have to edit the .vtf and if so, how would I do that?
3. Do I need other brushes for a window than just that brush with the texture?