[OpenGL Insights]Ch2. Transitioning Students to Post
作者：Mike Baileyhttp://web.engr.oregonstate.edu/~mjb/WebMjb/mjb.html 2.1 Introduction 在shader-based OpenGL以前，几何全于glBegin()和glEnd()之间用glVertex定义，这易于理解。而如今需使用难于理解且容易出错的VBO。如何使用我们更容易的从过去的思
作者：Mike Bailey http://web.engr.oregonstate.edu/~mjb/WebMjb/mjb.html
2.1 Introduction
在shader-based OpenGL以前，几何全于glBegin()和glEnd()之间用glVertex定义，这易于理解。而如今需使用难于理解且容易出错的VBO。如何使用我们更容易的从过去的思路转到现在的思路呢？本章采取直接的方式解决此问题：提供C++的类。这些类使用看起来像glBegin和glEnd的函数创建vertex buffer，并且负责加载，编译，链接和使用shader。并且建议使用naming convention以不污染shader的变量。
2.2 Naming Shader Variables: Introduction
这里定义一些命名规范。由于 可以在7个不同的地方设置GLSL变量，所以需要给变量设置前缀已了解变量从哪里来。如下表
![[OpenGL Insights]Ch2. Transitioning Students to Post](/static/imghw/default1.png)
2.3 Naming Shader Variables: Details
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