Cross Platform GUI Toolkit
Tiny OpenGL Wrapper / 3D Engine in C++
Updated emulator of Forgotten Realms: Unlimited Adventures
A language for making art using mathematics
Fix STL files for 3D printing
An easy-to-use standalone SIFT library written in C/C++
Storyboard software for classic animation
A free library for fast clipping of arbitrary polygons
Superseded by the official Gimp release: http://www.gimp.org/downloads