The terrain layer export SOP imports a heightfield with the correct settings from Unreal. It does so by properly orienting the heightmap prior to import, and also remaps it into the expected range (0-256). This tool is designed to work together with Terrain Layer Export.
Reimport from Disk
This button triggers a reimport of the files from disk.
This is a path pointing to the heightmap you want to import.
This multiparm allows you to specify how many mask layers you want to import in addition to height. (Ex flowmap, debris, etc)
The name of the imported mask data. This will be used to name the generated heightfield primitive.
This points to the mask you want to import.