LOD Resources are used to improve LODs generated with SSELODGen or DynDOLOD. You always need the DynDOLOD Resources, Scripts, and DLL as well as the SSE-Terrain-Tamriel-Extend, the installation instructions for which are covered in the linked modules for the respective tools.
Far Object LOD Improvement Project (FOLIP) adds resources for DynDOLOD 3 generation. It is mainly used to add roads to the map for A Clear Map of Skyrim and Other Worlds but also adds LODs for the glowing mushrooms in Blackreach and the Tundra Homestead creation.
Requirement(s): LOD Generation (effect will not be visible until LODs were rebuilt)