I'm almost there, but I still have a few doubts.
The maps are all in 1:30 scale. 61.440x61.440km (2048x2048px). The bmps are all 24bit, 72px/in. The terrain file seems to be editable in-game and is the same size as the heightmap;
My main doubt is regarding the height range for the maps. The height file is just a raster image in BMP, and it seem to be a simple 2 colors, black to red gradient, but I noticed that one or other maps have a varying amount of green in their RGB range. I didnt find anything specified as vertical ranges, or vertical offset in any of table files, so I assume that the vertical range is within this 0-255 of red gradient. Sharp slopes seem to become automatically impassable terrain.
I already tried different sources, like Alos Palsar, SRTM 1arc & 3arc, aster and them exported as bmp, resized to 2048px in photoshop and imported ingame. I tried to set the color gradient as custom shaders in Global Mapper, in different vertical ranges, from say, 0 to 400m, 0 to 1000m, to the actual range of the terrain, or giving it offsets, but the resulting terrain is always extremely noisy, sometimes so noisy that its tiny slopes make the entire terrain impassable. I also tried to post process the height map in photoshop, reducing noise, giving some degrees of blur, it works, but it looses a lot of good resolution and the result is still unsatisfactory.
So, my questions are:
1- How should the bmp be processed and exported out of the GIS program?
2- How is the vertical range done?
< Message edited by storm rider -- 11/19/2018 5:06:50 PM >