Web Directory

» GLSL vs Cg
   Compares the APIs, workflow and variable types between GLSL and Cg.
   http://appsrv.cse.cuhk.edu.hk/~wmpang/tutorials/glsl.html

» GPU Shading
   GLSL and ARB examples of texture mapping and lighting; includes code examples and screen shots.
   http://www.csee.umbc.edu/~olano/435/GPUshading.pdf

» Hardware-Based Nonlinear Filtering and Segmentation
   Whitepaper on using high-level shading languages to provide non-linear image filtering. Includes an abstract, diagrams and metacode.
   http://www.cg.tuwien.ac.at/research/publications/2003/Viola-2003-Har/Viola-2003-Har-Paper.pdf

» OpenGL Geometry Shader4 Extension
   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.
   http://developer.download.nvidia.com/opengl/specs/GL_EXT_geometry_shader4.txt

» Shader Language Comparison
   PDF comparing HLSL, GLSL and Cg. Includes diagrams and code samples.
   http://www.cs.unb.ca/undergrad/html/documents/Lovesey_Senior_TechReport.pdf

» Shader Programming
   Dr. Jian Huang's presentation on OpenGL shaders; includes history, overview, rendering examples, and comparisons of ARB vs Cg.
   http://www.cs.utk.edu/~huangj/CS594F03/shaders/Shader_Programming.pdf

» Shader Theory
   A tutorial on the basics of shading theory in 3D computer graphics.
   http://www.warpedspace.org/tutorials/shading_theory/

» Shading Languages
   Powerpoint presentation on 3D shading languages. Includes coding comparisons and pros/cons of various shading languages.
   http://www.cis.upenn.edu/~suvenkat/700/lectures/21/gpusl.ppt

» Shading Languages for Graphics Hardware
   Language-independent overview of 3D shading language pipelines. Describes application to GPU architectures.
   http://www.cs.virginia.edu/~gfx/Courses/2001/Advanced.spring.01/ppt/lecture21.pdf

» Wikipedia: Shading Language
   Provides an overview and history of various shading languages.
   http://en.wikipedia.org/wiki/Shading_language