Creating a GLSL Library
by Don Olmstead

Conclusion

Hopefully this article will give you an idea of how to write shader libraries. With the enclosed libraries you could combine Lighting and Texturing into a single pass. You could change the lighting model from Phong to something else, such as Toon Shading. The possibilities with GLSL are enormous.

Just remember if you come up with something really cool to share with the rest of us. Thanks for reading.

References

GLSL Tutorial - Lighthouse3D August 2007
Lighting with GLSL : Phong Model - oZone3D.net August 2007
Per Fragment Lighting - ClockworkCoders August 2007
Rost, Randi J. OpenGL Shading Language 1st ed. Boston : Addison-Wesley, 2004

Useful Links

ShaderGen - Fixed Functionality Shader Generation Tool (used to emulate OpenGL texturing)
ShaderDesigner - A GLSL IDE available in the OpenGL SDK (used for development of the enclosed shaders)

Contents

	Introduction
	A Texturing Example
	A Multi-Texturing Example
	A One-Sided Per-Pixel Lighting Example
	The Phong Lighting Shader
	A Two-Sided Per-Pixel Lighting Example
	Conclusion

	Source code
	Printable version
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