原文地址：http://blog.sina.com.cn/s/blog_471132920101dayr.html
特別講：CG函數(shù)
本講不需立刻看完，遇到相關(guān)函數(shù)時來查閱即可。
并不是所有CG函數(shù)Unity都支持，例如debug(float4 x)****Unity不支持
（本文截圖來源:Cg教程_可編程實時圖形權(quán)威指南）
E.1 數(shù)學(xué)函數(shù)
E.2 幾何函數(shù)
E.3 紋理貼圖函數(shù)
E.4 導(dǎo)數(shù)函數(shù)
E.5 調(diào)試函數(shù)
E.1 數(shù)學(xué)函數(shù)
CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" action-data="http%3A%2F%2Fs2.sinaimg.cn%2Fmw690%2F47113292g7b5186285b01%26690" action-type="show-slide" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" action-data="http%3A%2F%2Fs4.sinaimg.cn%2Fmw690%2F47113292gd12f3f95f413%26690" action-type="show-slide" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" action-data="http%3A%2F%2Fs3.sinaimg.cn%2Fmw690%2F47113292gd12f41f71252%26690" action-type="show-slide" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">
E.2 幾何函數(shù)
E.3 紋理貼圖函數(shù)
CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" action-data="http%3A%2F%2Fs9.sinaimg.cn%2Fmw690%2F47113292gd12f98604fd8%26690" action-type="show-slide" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" action-data="http%3A%2F%2Fs14.sinaimg.cn%2Fmw690%2F47113292gd12f990c333d%26690" action-type="show-slide" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">
E.4 導(dǎo)數(shù)函數(shù)
E.5 調(diào)試函數(shù)
CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">
【函數(shù)解析】
smoothstep(min,max,value)
CG函數(shù)" title="【風(fēng)宇沖】Unity3D教程寶典之Shader篇：特別講 CG函數(shù)" style="margin: 0px; padding: 0px; border: 0px; list-style: none;">smoothstep
PS:這些截圖出自：
《GPU編程與 CG語言》
