PLIB Home Page - A set of libraries that are designed to help developers of interactive 3D applications such as games. Expression 3D Toolkit - A free Object Oriented 3D toolkit. It is written in C++/STL. It has support for interactive 3D graphics using OpenGL and non-interactive sphere tracing. Read3DS - A 3D Studio file (*.3DS) reader and C++ X11 3d engine for Unix. OGRE 3D - A 3D library for multiple desktop and mobile platforms. [Open source, MIT] GNU 3DKit - Free Software Foundation (FSF) - Provides several frameworks to render 3D graphics in a GNUstep environment. Its main purpose is to render any kind of 3D graphics in real-time on commodity hardware, using an optimised scene graph architecture. Obsisian - A currently unsupported open source 3D virtual world for Linux and OpenGL. Gizmo 3D - A software development kit that can be used in a variety of demanding application development projects. Gino - A suite of libraries for the development of 3D graphics applications. Available for Delphi, VB, Fortran, C++ and .NET. VCG Library - A portable C++ templated library for efficient manipulation, processing and displaying with OpenGL of triangle and tetrahedral meshes. Glide for UNIX - A project to support 3Dfx Glide API on Posix OS.