RealTime Rendering for  the PhongSpecular Surface by Multitexture

J4 ›› 2011, Vol. 33 ›› Issue (7): 85-88.

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RealTime Rendering for the PhongSpecular Surface by Multitexture

ZHU Guozhong,ZHANG Fan，BU Hui

（School of Information Engineering,North China University of
Water Resources and Electric Power,Zhengzhou 450011,China）

Received:2010-11-15 Revised:2011-02-23 Online:2011-07-21 Published:2011-07-25

Abstract

Abstract:

The highlights of realworld objects are usually induced by specular reflection which has a complex nonlinear expression and brings difficulties to its realtime rendering. Therefore, a realtime rendering technology using texture mapping for the specular surface is proposed in this paper. In detail, the Phong BRDF model with a specular expression is decomposed into multiple precomputed functions, which are in turn stored as texture maps. Combining these textures by multitexture leads to substantial rendering for specular surfaces. The experimental results show that our algorithm improves significantly the rendering performance.

Key words: highlight;specular reflection;texture mapping;phong model

ZHU Guozhong,ZHANG Fan，BU Hui. RealTime Rendering for the PhongSpecular Surface by Multitexture[J]. J4, 2011, 33(7): 85-88.

RealTime Rendering for the PhongSpecular Surface by Multitexture

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