Empty Impassable (pitch black)

[Lordbob]

For empty spots in the map where units aren't meant to go. We could simply apply no terrain, but then the backside of cliffs, bottom of castle walls etc. would show. This could be either:

• a black unshaded terrain texture that neither casts nor receives any shadows
• a simple plain black texture, or very dark rock texture

[Lordbob]

Placeholder impassable void terrain is in, with the code "Xu" Still needs some shader magic or a rock texture in order to look good, though.