标题: Improved quadratic normal vector interpolation for realistic shading
作者: Lee, YC
Jen, CW
电子工程学系及电子研究所
Department of Electronics Engineering and Institute of Electronics
关键字: shading;quadratic interpolation;perspective correction
公开日期: 2001
摘要: Interpolation for normal vectors is an important stage of Phong shading. Linear interpolation cannot represent the geometry of surfaces adequately in some situations. Previous quadratic interpolation for normal vectors generates visual artifacts for arch-type curves and triangle scan conversion. To eliminate those artifacts, we propose an improved quadratic interpolation for normal vectors with little computational overhead. Perspective-correct version for obtaining perspective foreshortening is also presented.
URI: http://hdl.handle.net/11536/29970
http://dx.doi.org/10.1007/s003710100111
ISSN: 0178-2789
DOI: 10.1007/s003710100111
期刊: VISUAL COMPUTER
Volume: 17
Issue: 6
起始页: 337
结束页: 352
显示于类别:Articles


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