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Design of an Effective Bump Mapping Hardware Architecture Using Angular Operation  

이승기 (연세대학교 컴퓨터과학과)
박우찬 (세종대학교 컴퓨터공학부)
김상덕 (연세대학교 컴퓨터과학과)
한탁돈 (연세대학교 컴퓨터과학과)
Publication Information
Journal of KIISE:Computer Systems and Theory / v.30, no.11, 2003 , pp. 663-674 More about this Journal
Abstract
Bump mapping is a technique that represents the detailed parts of the object surface, such as a perturberance of the skin of a peanut, using the geometry mapping without complex modeling. However, the hardware implementation for bump mapping is considerable, because a large amount of per pixel computation, including the normal vector shading, is required. In this paper, we propose a new bump mapping algorithm using the polar coordinate system and its hardware architecture. Compared with other existing architectures, our approach performs bump mapping effectively by using a new vector rotation method for transformation into the reference space and minimizing illumination calculation. Consequently, our proposed architecture reduces a large amount of computation and hardware requirements.
Keywords
3D Graphics Hardware; Bump Mapping; Polar Coordinate System; Angular Rotation;
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