PyMOL is an OpenGL based molecular visualization system
PyMOL is a Python-enhanced molecular graphics tool. It excels at 3D visualization of proteins, small molecules, density, surfaces, and trajectories. It also includes molecular editing, ray tracing, and movies. Open Source PyMOL is free to everyone!
K-3D is the free (as in freedom) 3d modeling, animation, and rendering system.
GtkGLExt is an OpenGL extension to GTK+. It provides additional GDK objects which support OpenGL rendering in GTK+, and GtkWidget API add-ons to make GTK+ widgets OpenGL-capable.
PyOpenGL is the binding layer between Python and OpenGL.
SPE is a python IDE with auto indentation&completion,call tips,syntax coloring&highlighting,uml viewer,class explorer,source index,todo list,pycrust shell,file browsers,drag&drop,Blender support.Spe ships with wxGlade,PyChecker and Kiki.
delta3d is a robust simulation platform built using open standards and open source software. It features full toolchain development supporting a wide variety of free and commercial software.
Kokua is a V3 based open source metaverse viewer project.
Kokua is an open source metaverse viewer project based on the Second Life Viewer source. Disclaimer: This software is not provided or supported by Linden Lab, the makers of Second Life. The goal of Kokua is to greatly improve the usability of the Viewer through community involvement, thoughtful design, modern development methods, and a pro-change atmosphere.
Crystal Space is an Open Source 3D SDK for Unix, Windows, and MacOS/X. It renders with OpenGL and features GLSL shaders, CG shaders, deferred rendering, dynamic shadows, bullet based physics library, terrain engine, skeleton based animation meshes, exporter for Blender, portals, etc...
UPDATE: Chromium is no longer updated or maintained. The project is frozen. Chromium is a flexible framework for scalable real-time rendering on clusters of workstations, derived from the Stanford WireGL project code base.
The Python Computer Graphics Kit is a collection of Python modules that contain the basic types and functions to be able to create 3D computer graphics images (focusing on Pixar's RenderMan interface).
Advanced Render Manager
The free software for CG Artists RenderBOX is simply a rendering manager. This will help 3D and Compositing artists to track and manage there render sequences.
GLE is a library of C functions that draw extruded surfaces, including surfaces of revolution, sweeps, tubes, polycones, polycylinders and helicoids. GLE uses the OpenGL(R) API to perform the actual rendering.
KlayGE is an open source, cross-platform game engine with plugin-based architecture. It provides a framework to make game development, testing, porting as simple as possible.
Maxwell Render for Blender
B-Maxwell add-on offers seamless integration with Maxwell Render and Blender
realtime 3d surface rendering library
landshade is a C++ library for quick tesselation of complex 3D data like terrain and other curves surfaces at different levels of detail on modern graphics hardware.
V-Ray integration to Blender
Linderdaum Engine is an open source purely object-oriented 3D gaming engine written in C++. It is designed to be an integrated solution for the development of interactive 3D applications, for game, industrial and scientific visualization.
SOLARIS is a graphic adventure created and developing by Blender. The game takes place in the Solaris space station, as is described in the book "Solaris" by Stanislaw Lem and Tarkovsky's film.
Imprudence is an open source metaverse viewer project.
Imprudence is an open source metaverse viewer project based on the Second Life Viewer source. The goal of Imprudence is to greatly improve the usability of the Viewer through community involvement, thoughtful design, modern development methods, and a pro-change atmosphere.
MayaVi is a free, cross platform, easy to use scientific data visualizer. It provides a GUI to ease the visualization process, is written in Python and uses the Visualization Toolkit (VTK) for the graphics.
Modern 3D game engine. Featuring dynamic lighting and shadowing, physics, sound, etc
Realtime 3D game/visualization engine, written in C++, scriptable through Tcl/Tk, Python and Lua. Supports D3D and OpenGL for rendering, runs under Linux and Windows.
The Zombie engine is an open source game engine and framework based in The Nebula Device 2, the open source engine from Radon Labs. Developed by Tragnarion Studios, it is mainly oriented towards the creation of multiplayer PC action games.
Affogato is a plugin for Avid's Softimage XSI 3D animation package. It links XSI with high-end 3D renderers. It allows a great level of customization to fit into contemporary VFX pipelines. Currently Affogato only supports RenderMan-compliant renderers.
DirectPython 11 is a C++ extension to the Python programming language which provides access to the Direct3D 11 API.