Normalmap

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|[[File:Normalmap bowl.jpg|150px|thumb|Normalmap for a bowl model]]
 
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Revision as of 14:55, 18 July 2012

Heightmap for parallax mapping
Normalmap for a bowl model

Normal maps are images that store per-pixel surfaces normals directly in the RGB values of an image. They can dramatically increase object detalisation without adding more polygons. Therefore, normalmaps have a bunch fo limits and quirks.

Recommended articles on normalmaps:

In Darkplaces Engine, normalmaps are:

  • Tangent-space RGB
  • OpenGL-oriented (X stores horizontal, Y vertical)
  • Optionally can store alpha component which represents height that will be use for parallax mapping.

See also

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