Hi, it's really funny that I've just come across this topic right now, because I may soon have to develop an app using a much more bigger area than I had before.
So I was thinking of using "Geomipmapping" or other solution to load dynamically a huge terrain (huge model and huge texture, from real world).
I've given Ardor3D a try because it implements a solution (
https://github.com/Renanse/Ardor3D/wiki/Terrain ), but I'm giving up as it's poorly documented, much more difficult to use than jpct, and seems to be kind of obsolete.
So for now I don't know how to do it, I'll maybe just keep things static but try to reduce mesh / texture as less as possible, as the app would only have to run on a recent PC (no android version planned for now).
By the way do you know a GPU allowing to load textures bigger than 8192² ? And is there a limitation in the max number of polygons in JPCT / OpenGL ?
Anyway, I'm still working on my other apps (with reasonable mesh and texture sizes...), I've developped an editor allowing to pick/modify hiking ways (polylines), to create and place signs (billboards), etc... so as my partner (not a computer scientist) can at the same time create contents easily.
We still plan to release theses apps (one app for each montainous region) as soon as possible, but we really want to polish it a lot and it takes some time... I'll keep you in touch !