Relief mapping (computer graphics): Difference between revisions

Revision as of 18:16, 17 October 2008

Revision as of 18:51, 17 October 2008

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{{Cleanup-jargon|date=June 2007}}

In [[cartography]], '''relief mapping''', or '''shaded relief''', is a technique of displaying 3D terrain shape by simulating shadows formed by a single light source shining obliquely onto a 3D surface.

In [[computer graphics]], '''relief mapping''' is an alternative [[texture mapping]] technique to [[parallax mapping]] that is much more accurate, and can support [[self-shadowing]] and [[normal mapping]]. It can be quite simply described as a short-distance [[raytrace]] done on a [[pixel shader]]; various techniques can be implemented to speed up the raytrace by taking variable step sizes.

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==See also==

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Cartography

* [[Shaded relief]]

* [[Shaded relief]], a cartographic technique that portrays terrain by using simulated shadows

Computer Graphics

* [[Bump mapping]]

* [[Normal mapping]]