Proceedings of the Korean Society of Broadcast Engineers Conference (한국방송∙미디어공학회:학술대회논문집)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
권호 표지

FAST PHONG SHADING BASED ON TABLE LOOKUP

  • Lu, Hsien-Chang (Department of Computer Science and Information Engineering Chung-Hua University, Taiwan, R.O.C.) ;
  • Dai, Wen-Kai (Department of Computer Science and Information Engineering Chung-Hua University, Taiwan, R.O.C.)
  • Published : 1999.06.01

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Abstract

In Computer Graphics, Phong shading algorithm is essential and also sufficient for producing realistic images. In this paper, we propose an approach taking only two additions and one memory access for shading a pixel. A Phong-Shading table is used for storing the values of diffuse and specular components of the Phong reflection model. The intensity of a pixel can be obtained by table lookup. The performance of proposed method is almost the same as Gouraud shading.

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