Hello everyone, a couple people have been asking about how to make custom textures, so I made this little tutorial. (if any more experienced mappers find an error in my tutorial let me know so I can fix it)   Things you're gonna need: - Hammer for editing the map, duh (I suggest having a little experience with mapping) - Some sort of program to make the texture that will let you export it as a .png (I'm using Gimp) - VTFedit for converting to a valve texture file