So if I understood correctly you want to import and use a raw height map file for use on terrain? I’m probably one of the few tutorials you’ve seen on Youtube that have covered it, albeit I always found the process to be tedious. I know Unity upgraded their terrain system so I’d have to go through the steps again to see what the difference is. I didn’t use Gimp myself, but Photoshop but I assume Gimp can export a raw file just the same. If you have the file you can share, please post it here, otherwise I’ll experiment with my own height map.
