This map is filled with every imaginable combination (and a lot I ran out of room for) and use for general shape monochrome textures, in combination with the commands texscale, texscroll, with offsets and glow colors.
This map however, is made with -several- kinds of black and white pattern, including slanting, blinking, and rolling textures. The main area at the beginning splits off into three smaller rooms, each of them leading to a different general area of the largest area in the map, an enormous smoothed heightmap field (yes, I know xD)
Also be wary, in an attempt to make the waterfalls look invisible, some map settings will likely change when loading the map.