Can't find any guide to changing appearance of terrain types, but judging from screen shots some mods seem to have managed it.

Am especially interested in modifying mountains high and mountains low so they follow the heights.tga more exactly. At the moment mountains low seems to round heights down and mountains high adds non-existent peaks.

Any ideas?

Also can anyone explain how the models_landscape/textures are applied? I can't figure out relationship with them and the step.dds's and what i see on the map.