FlightGear Flight Simulator: free open-source multiplatform flight sim
An interactive viewer for three-dimensional chemical structures.
Open Source Solid Modeling CAD
Tools to process and visualize scientific data and images
Xj3D is an open-source Java codebase for the X3D Graphics standard.
realistic driving simulation + functions for 2D/3D graphics
CIRT - CUDA Interactive Ray Tracer
Java3d scenegraph editor
Rayshade raytracer
Tao3D is a programming language for real-time interactive 3D