FlightGear Flight Simulator: free open-source multiplatform flight sim
Draw vector graphics to scale using a descriptive language
An interactive viewer for three-dimensional chemical structures.
A standalone, portable generic Ada package for decoding images
Rayshade raytracer
Web-based HTML5 Photo Viewer
3D .NET engine for Windows, Linux, Mac
Imagin Raytracer is a multithreaded command line raytracer
OpenGL Image Processing LIBrary
Cuts 3D objects from polystyrene foam (EPS/XPS)
imagetext is a smarty plugin for creating graphical cached text images