Heightmap

A heightmap is a grayscale digital image used to store three-dimensional data. It is used in NWN2 to define the terrain of an outside area. (Inside areas use tilesets.)

Pre-release notes

 * Obsidian uses their own format for NWN2 heightmaps, which includes additional information such as vertex normals, texture blend data, and vertex color.
 * The toolset will not include the ability to import or export heightmaps, but the toolset plugin mechanism will allow a community member create such a tool.