Hybrid Terrain Shadow Ray Casting

Date issued

2008

Journal Title

Journal ISSN

Volume Title

Publisher

Václav Skala - UNION Agency

Abstract

This paper describes an efficient algorithm for real-time terrain shadowing by directional light. The main concept for this algorithm is fast preprocessing stage in model space that dramatically speeds up shadow calculation for pixels in rasterization phase. Preprocessing is very fast and can be performed every frame still achieving interactive frame rates. Therefore it is suitable for dynamic height field and moving light source visualization.

Description

Subject(s)

krajinné stíny, vizualizace vysokého pole, vykreslování, detekce siluety, terén

Citation

WSCG '2008: Communication Papers: The 16-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision in co-operation with EUROGRAPHICS: University of West Bohemia, Plzen, Czech Republic, February 4 - 7, 2008, p. 175-182.
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