3D GPUs Strange Attractors and Hypercomplex Fractals explorer
FlightGear Flight Simulator: free open-source multiplatform flight sim
Open Source Solid Modeling CAD
CIRT - CUDA Interactive Ray Tracer
Interactive 3D Layout Viewer for GDSII
GPU Raytracer from scratch in C++/CUDA
Tao3D is a programming language for real-time interactive 3D
A real time global illumination solution that achieves glossy surfaces
Design and Display Happy Cube solutions
PHIGS (Programmer's Hierarchical Interactive Graphics System)