I have been trying to re-create a 24k x 24k map and it has been an ‘Epic’ failure so far. The import heightmap function works pretty good now with the official release if you stay under the 8192 size. Breaking up the map into 9 sections with 8Kx8K maps of (x0 y0, x1 y0, x2 y0, etc.) would work with a huge but… Import them and you can load them and unload them as long as you don’t change the x and y locations, but that defeats the purpose. Now if you try to import at 24kx24k heightmap, it will throw a triangle count error and ignore the import.
I know that this is experimental but it does espouse the ability of large maps. 8K map was ok back in the day but not today. Anybody have solution?