Wilddog's IWTE tool (version v21_07_A onwards) will now produce the map mesh pieces needed for the Rome Remastered 3d map from your base tga files, if supplied with basic textures for sea/fertility/mountains etc it will also now generate textures for each tiles including normals.
Coast and river meshes are also now produced and a river straightening system can be included to align borders with rivers.
The tool is available here:
A demonstration set-up for creating textures is available here: https://drive.google.com/file/d/15rC...URt1IebwS/view
The map produced from that set up is available to play on Steam here: https://steamcommunity.com/sharedfil...?id=2556913124
There is some basic information about the process here: https://wiki.twcenter.net/index.php?...ered_Functions
The process works purely from the tga files, you do not need to use any 3d modelling programs. If you can find base texture tiles to use for the ground_types, you also don't need to use any image editing software.