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OpenGL Shader Designer - http://www.typhoonlabs.com/
A freeware shader development IDE for Windows; aids in developing vertex and fragment (pixel) shaders in GLSL. Includes tools, tutorials, and sample Space Invaders app (requires VC++ 4). |
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OpenGL Geometry Shader4 Extension - http://developer.download.nvidia.com/opengl/specs/GL_EXT_geometry_shader4.txt
Specification for OpenGL's geometry shader APIs. Geometry shaders live in between vertex and fragment shaders in OpenGL's pipeline, and are used to introduce new primitives based on incoming vertices. Detailed documentation and pipeline diagram. |
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Shader Language Comparison - http://www.cs.unb.ca/undergrad/html/documents/Lovesey_Senior_TechReport.pdf
PDF comparing HLSL, GLSL and Cg. Includes diagrams and code samples. |
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Shader Theory - http://www.warpedspace.org/tutorials/shading_theory/
A tutorial on the basics of shading theory in 3D computer graphics. |
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Shader Programming - http://www.cs.utk.edu/~huangj/CS594F03/shaders/Shader_Programming.pdf
Dr. Jian Huang's presentation on OpenGL shaders; includes history, overview, rendering examples, and comparisons of ARB vs Cg. |