Velmar's Tower Tileset

[Legacy_Rolo Kipp]

               <looking deep...>

Yes, alpha is reflectance. The more alpha, the more envmap applied.
Probably the best examples are the drow tileset texture txi. (I won't have my laptop fired up until Thurs :-P ).

<...underground>
               
               

               
            

[Legacy_Mecheon]

               Illithid tileset is also another good example of it being used. Another good example of it would be Helvene's Maze tileset[/ur]

Its completely doable, just gotta modify the textures appropriately