/**

	\page pagGuideGLSL OpenGL Shading Language Tutorial

	This tutorial shows how simple it is to use the OpenGL Shading Language with Visualization Library. 

	<img src="pics/pagGuideGLSL.jpg">
	
	The example below demostrates the use of vertex shaders, fragment shaders and geometry shaders.
	
	[From \p App_GLSL.cpp]
	\dontinclude App_GLSL.cpp
	\skip class
	\until // Have fun!
*/