采用条件编译相对路径。用OpenGL直接管道渲染，没有使用Shader。程序中有2个光源，一个静止，一个运动，从而可以更加精确地验证ShadowVolume的准确性。-Compiled using a relative path conditions. Rendering pipeline using OpenGL directly, without the use of Shader. Procedures in the two light source, a static, a movem

OpenGL程序设计，值得一看，适合入门读者-OpenGL programming, worth a visit, suitable for entry-readers

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