Does it matter to Orulex whether I am using planetary textures from the Textures or Textures2 directory? If so, how does it apply the higher resolution textures to the heightmap generated landscape? Will my level 10 Earth textures be applied to the surface of the heightmap generated landscape? I noticed in orulex.cfg that Textures=Textures as a directory setting. How does Orulex apply textures in general? What is orulex.dds for? I have made AltLimit=200000 in orulex.cfg in order to hopefully see the heightmap landscape in high resolution textures at a high altitude. Thank you for any forthcoming information.
It follows the Orbiter planet texturing scheme.
First, "Textures2" is checked, if no textures found, then "Textures" is checked. This is repeated several times - for lv1->lv8 textures, then for lv9->lv10+ textures that have separate files, and after that, for each user-downloaded Lv12+ textures, that are in Out-Of-Orbiter format.
The Orbiter launchpad texture level limit setting is ignored, Orulex always looks for top-level textures.
orulex.cfg's "Textures=Textures" line is interpreted as base textures directory. If you change it to something else, like "Images", then the abovedescribed scheme will follow the "Images" and "Images2" directories.
orulex.dds is a part of a hack that makes the thing work, because it is impossible to make dynamic planetary landscapes in Orbiter.
AltLimit does nothing but defines the interface altitude between Orulex rendering and default rendering.
If you changed it in the orulex.cfg, it will probably not work anyway, since the value there is only default fallback. You should change the AltLimit value in config/terrain/your_planet.cfg.
It is quite safe to do for the Moon, but it makes Earth look a bit ugly from orbit.
All abovesaid applies to Orulex 1.0 and above.