The terrain normals map

The terrain normals map is a map of vectors perpendicular to the heightfield surface. This map is used only for generating the light map.

Here the three colours (r, g, b) are used to represent the three components of the normal vector (x, y, z).

• User-guide topics:
  • Generating the normals map.
  • Generating the light map.
• Algorithm information:
  • Calculating light intensity.
  • Bump-mapping.