Vertex painting is out of the question as far as I can tell,Seek n Destroy said:Not sure about that one but maybe you could use vertex painting on the swamp part of the map, if I remember correctly in one of the world map creation tutorials that is somewhere in the forge the author used vertex painting to make the roads which used the grass material.
You cannot vertex paint in thorgrims, you also cannot use obj to map.txt converters - as Obj's do not support vertex painting - they dont save vertex painted data.
If vertex painting was possible on the world map it would open up so many different possibilities for modding "hacks", you could literally quadruple the number of map textures used (and I mean entirely new textures) by altering shader files, amongst so many other things. If only there was a way.
Possible however you would need to split it into multiple small map icons if you have a medium to large sized swamp. Map icons glitch out of the screen/dissappear when their center point (defined in module_parties) is outside of the area on screen. The maximum size of a map icon is probably about 4-5 times the width of one of natives towns, any bigger and the glitching out of shot effect makes it look stupid.Seek n Destroy said:Making the swamp as a map icon might be viable too if you are inventive.