SwiftShader is a high-performance CPU-based implementation
The open source mesh processing system
OpenGL Mathematics (GLM)
Real-time physically based rendering engine for Android, iOS, and more
aka ogre v2 - scene-oriented, flexible 3D C++ engine
ArrayFire, a general purpose GPU library
High-efficiency minimalist C++ wrapper for OpenGL 4.3
Hewlett-Packard's Linux imaging and printing software
Powerful desktop publishing software
FlightGear Flight Simulator: free open-source multiplatform flight sim
Swiss army knife of image processing
Panorama photo stitcher
Window hooker to run fullscreen programs in window and much more...
a parametric 3D CAD modeler
Open Source Solid Modeling CAD
A collection of packages providing extra functionality for GNU Octave
xBRZ: "Scale by rules" - high quality image upscaling filter by Zenju
3D Engine c++
Enables use of SANE scanners from Windows, with or without TWAIN