Tutorials

• Quick Polygon Tesselation : Quickly break down a polygon into triangles.
• Line-Plane Intersection tutorial : Shows how to find if and where a line intersects a plane.
• Discrete Wavelet Transform : A primer on the discrete wavelet transform and a little bit about its uses.
• Global Illumination In a Nutshell : A broad, but still thorough overview of global illumination techniques and how they work... plus a few cheats for realtime.

Articles

• Weighted Color Accumulation Blending : This is just one of those ideas that comes when you realize alpha blending sucks.