Ive been wondering this for a while,
You know how on some maps there are windows, and you can see through them, but it IS a solid texture.
For example,
In mission_one_b6 at the starting point there is a window between the humans and the aliens start position, but you cant go through it, only see through it.
How do you do that?
Thanks for your help,
Drakotsu
Shader on a detail brush.