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Merge pull request #10 from RidgeSTD/master

#9: fix type: wrap lighting

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Content/《GPU Gems 1》全书提炼总结
- README.md

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`‎Content/《GPU Gems 1》全书提炼总结/README.md`

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Original file line number	Diff line number	Diff line change
`@@ -896,7 +896,7 @@ Scattering)的视觉特性:`
`896`	`896`
`897`	`897`	`### 4.2 简单的散射近似(Simple Scattering Approximations)`
`898`	`898`
`899`		`-近似散射的比较简单技巧是环绕照明(Warp`
	`899`	`+近似散射的比较简单技巧是环绕照明(Wrap`
`900`	`900`	`Lighting)。正常情况下,当表面的法线对于光源方向垂直的时候,Lambert漫反射提供的照明度是0。而环绕光照修改漫反射函数,使得光照环绕在物体的周围,越过那些正常时会变黑变暗的点。这减少了漫反射光照明的对比度,从而减少了环境光和所要求的填充光的量。环绕光照是对Oren-Nayar光照模型的一个粗糙的近似。原模型力图更精确地模拟粗糙的不光滑表面(Nayar`
`901`	`901`	`and Oren 1995)。`
`902`	`902`
`@@ -1075,7 +1075,7 @@ Diffusion)是可能的,我们可以用顶点程序展开物体的网格,`
`1075`	`1075`
`1076`	`1076`	`文中提出的次表面散射的实时近似方法,总结起来有三个要点:`
`1077`	`1077`
`1078`		`-1) 基于环绕照明(Warp Lighting)的简单散射近似,Oren-Nayar光照模型。`
	`1078`	`+1) 基于环绕照明(Wrap Lighting)的简单散射近似,Oren-Nayar光照模型。`
`1079`	`1079`
`1080`	`1080`	`2) 使用深度贴图来模拟半透明材质的最重要特性之一——吸收(Absorption)。`
`1081`	`1081`
`@@ -1114,7 +1114,7 @@ Blur)`
`1114`	`1114`
`1115`	`1115`	`纹理空间漫反射(Texture-Space Diffusion)`
`1116`	`1116`
`1117`		`-环绕照明(Warp Lighting)`
	`1117`	`+环绕照明(Wrap Lighting)`
`1118`	`1118`
`1119`	`1119`	`深度映射(Depth Maps)`
`1120`	`1120`

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