来源：GameRes，GameDev
\N[img]http://images.gamedev.net/columns/hardcore/softedgeshadow/SoftShadows.jpg[/img]
\N[url=http://dev.gameres.com/Program/Visual/3D/SoftEdgedShadows.mht]中文翻译版[/url]
\N[url=http://www.gamedev.net/reference/articles/article2193.asp]英文原版[/url]