efg's Computer Lab A large number of Delphi projects involving Image Processing, Color, Graphics, Mathematics, Fractals and Chaos. http://www.efg2.com/Lab/
Engine3D A 3D rendering engine for Delphi. Uses no external libraries such as OpenGL or DirectX. Implements Gouraud shading for high quality curved surfaces. Fast enough to be used for real-time 3D animation or games. [Open source] http://geocities.com/peter_bone_uk/engine3d
GLScene 3D OpenGL based library for Delphi. [Open Source, Mozilla Public License] http://glscene.sourceforge.net/
Renegade3D Demos and source code of realtime 3D graphics using OpenGL and the GLScene 3D library for Delphi. http://uk.geocities.com/rjklindsay/renegade3d/
Sulaco Delphi, OpenGL, game development and graphics site. It currently have over 160 tutorials online. http://www.sulaco.co.za/
Vampyre Imaging Library A native ObjectPascal image loading, saving and manipulation library. [Open source, MPL] http://imaginglib.sourceforge.net/
