I am currently in the process of creating a new world space that has portals to all other major areas in Oblivion (portals to: Major cities in Cyrodill, all Oblivion planes, the Shivering Isles, etc). The land itself is not too horribly big, but distance is definitely a factor. The problem I constantly seem to come across is that whenever I test my landscape, the landscape in front of me seems invisible until I get really close, at which point it just seems to pop up. I think this has something to do with DistantLOD, though I could be totally wrong.
What I've done to solve this:
-Used the "Generate LOD" function in the Heightmap Editor
-Used the "Generate LOD and Texture" in the Render Window
-Ran my mod (.esp and .esm) through TES4 LODGen
-Used TESGecko to move Worldspaces
I think I used another program, but I can't really remember at the moment.
Anyway, I've started over more times then I care to count and I'm getting quite annoyed by this. Is there anyone out there that can help me solve this?
EDIT: Though I've dabbled with the TESCS and GECK quite a bit, I'm still a noob with most of it.