Glt is a library of C++ classes and routines for programming interactive 3D graphics with OpenGL. The aim of Glt is to augment the OpenGL API with convenient mechanisms for manipulating the OpenGL state machine. Glt is a work in progress, and by no means covers the entire OpenGL specification. However, it already includes several useful classes and is designed so that additional classes can be added easily. In addition to Glt, the GlutMaster classes provide C++ wrappers for the GLUT API.
Jmol is a Free, Open Source molecule viewer and editor. It is a collaboratively developed visualization and measurement tool for chemical scientists. Jmol is an active project, and there are new features being added to it on a daily basis. Users are encouraged to modify it to fit their needs and to contribute their changes to the project.
PLIB is a set of libraries to write games and other realtime interactive applications that are 100% portable across a wide range of hardware and operating systems. It's used by Majik3D, FlightGear, and others, and includes libraries for GUI widgets, sound replay, geometry, scene graph, joystick, and fonts/text.
Raja (RAy tracer in JAva) is a complete, object oriented ray tracer written in Java. It fully supports transparency, intersection, union, complement, mirroring, basic anti-aliasing, and exact acne correction. We aim to do a complete, easy to use and distributed renderer to do images or movies over a network of heterogeneous computers.
SDPSL provides tools for discovering a RenderMan shader's arguments at runtime in a render-engine neutral way, either with external, per-shader XML metafiles, or by parsing a shader's source directly. This significantly simplifies the development of render-engine-neutral 3D graphics tools, by eliminating linking to multiple, proprietary parsing libraries (such as libslcargs.a for BMRT, libsloargs.a for PRMan, etc.) It also allows a shader author to communicate a much richer set of data to modelling apps in a standardized way. For example, a shader metafile can specify that a string argument is intended for use as a texture; a modelling app can use this information to adjust its UI accordingly.
MayaVi is a free, cross platform, easy-to-use scientific data visualizer. It provides a powerful GUI to ease the visualization process. It is written in Python and uses the Visualization Toolkit (VTK) for the graphics. MayaVi can be scripted from other Python programs and also from the interactive Python interpreter. MayaVi includes the VTK Pipeline browser. The VTK Pipeline browser is a Python module (vtkPipeline) that enables one to view and configure the objects in the VTK pipeline graphically with a Tkinter-based GUI. The browser should work for any Python script that uses VTK. MayaVi also provides classes to pickle a VTK object and a simple class documentation browser.