凹凸映射Bump Mappinghttp://blog.csdn.net/zhulinpptor/archive/2010/09/27/5909573.aspx

 3D中的切线空间简介切线空间http://azykise.blog.163.com/blog/static/1730802442010431113010224/如何由Height Map生成Normal Map

Bump Mapping Using CG (3rd Edition)http://www.blacksmith-studios.dk/projects/downloads/bumpmapping_using_cg.php通过切线空间的凹凸映射添加逐像素细节http://shiba.hpe.sh.cn/jiaoyanzu/wuli/showArticle.aspx?articleId=474&classId=4计算三角形网格的tangent spacehttp://www.zwqxin.com/