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[3893 users on Ohloh]
MySQL, the most popular Open Source SQL database management system, is developed, distributed, and supported by Sun Microsystems.
PostgreSQL Database Server
[1046 users on Ohloh]
PostgreSQL is a powerful, open source relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. It runs on all major operating systems, including Linux, UNIX (AIX, BSD, HP-UX, SGI IRIX, Mac OS X, Solaris, Tru64), and Windows.
[333 users on Ohloh]
Blender is a 3D animation and compositing suite with tools for modeling (advanced subdivision modeling, multiresolution sculpting), uv unwrapping, texturing (procedural node, 2D and 3D painting), animation, rendering, particles and simulation (including fluid dynamics, hard body physics, cloth and hair), post-production with node based compositing and non linear editing, integrated game engine (with graphical programming, vehicle and rag doll constraints) and python scripting including an impor...
[97 users on Ohloh]
Twisted is an event-driven networking framework written in Python. It integrates a large number of consistent APIs for developing new Internet services.
[94 users on Ohloh]
OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++ designed to make it easier and more intuitive for developers to produce applications utilizing hardware-accelerated 3D graphics. The class library abstracts all the details of using the underlying system libraries like Direct3D and OpenGL and provides an interface based on world objects.
[70 users on Ohloh]
Genshi is a Python library that provides an integrated set of components for parsing, generating, and processing HTML, XML or other textual content for output generation on the web. The major feature is a template language, which is heavily inspired by Kid
[40 users on Ohloh]
Mason is a powerful Perl-based web site development and delivery engine. With Mason you can embed Perl code in your HTML and construct pages from shared, reusable components.

Mason solves the common problems of site development: caching, debugging, templating, maintaining development and production sites, and more.

Mason is 100% free and open source. Although it can be used from CGI or even stand-alone, it is optimally designed for use with two other open source technologies: mod_per...

[38 users on Ohloh]
jMonkeyEngine provides a high performance, scenegraph based rendering and physics system.
Crystal Space 3D
[38 users on Ohloh]
Crystal Space is a free, cross-platform software development kit for realtime 3D graphics.
It supports Windows, Linux, MaxOS/X and more. Though written in C++, other languages like Python can also be used to write programs.
Based on a plugin system it's very modular and extended easily.
3D rendering is done with OpenGL. Features of the latest as well as older hardware are supported seamlessly.
Mozilla Rhino
[32 users on Ohloh]
Rhino is an open-source implementation of JavaScript written entirely in Java. It is typically embedded into Java applications to provide scripting to end users.
[31 users on Ohloh]
Sauerbraten (a.k.a. Cube 2) is a free multiplayer/singleplayer first person shooter, built as a major redesign of the Cube FPS.
[18 users on Ohloh]
The ht://Dig system is a complete WWW indexing and searching system for a domain or intranet. This system is not meant to replace the need for internet-wide search systems like Lycos, Infoseek, Google, and AltaVista. Instead, it is meant to cover the search needs for a single company, campus, or even a particular sub-section of a Web site.
Irrlicht Engine
[18 users on Ohloh]
The Irrlicht Engine is a high performance real-time 3D engine written and usable in C++, and also available for .NET languages. It is completely cross-platform, using D3D, OpenGL, and its own software renderers.
Spring RTS Engine
[16 users on Ohloh]
This project is developing an engine for real-time strategy games. It originated as an open-source version of Total Annihilation, and now has several other mods available. The game boasts an active player community.
[13 users on Ohloh]
Tags: python templating engine mvc
Kid is a simple template language for XML based vocabularies written in Python. It was spawned as a result of a kinky love triangle between XSLT, TAL, and PHP. We believe many of the best features of these languages live on in Kid with much of the limitations and complexity stamped out.
[12 users on Ohloh]
OpenFrag is an Open Source, multi-platform game. It plays in a medieval environment where Orcs and Humans fight to the death in a multiplayer session.
Axiom 3D
[11 users on Ohloh]
The Axiom Engine Project is a fully object oriented game engine development effort using C# and the Microsoft.Net or Mono platform to create an easy to use, flexible, extendable, and powerful engine that allows for rapid development of games for various genres.
[10 users on Ohloh]
The Xith3d project consists of powerful middleware consisting of a scenegraph and an extensible renderer. The goal is to create a lean and performative scenegraph and renderer while at the same time allowing for extensions and enchancements to all stages of the rendering pipeline.
You can think of it as a 3D engine. It allows to create games, or any application requiring a 3D visualization. It's versatile, usable with JOGL or LWJGL, embeddable in AWT, Swing, SWT (Eclipse). ...
[9 users on Ohloh]
LogicalDOC is a Web-based Document Management System (DMS) easy to use and learn.

Its architecture leverages best-of-breed Java technology to achieve a powerful and flexible solution.

It supports its users with a powerful search engine (Lucene), Web service interface (JAX-WS via CXF), and versioning. Documents can be organized into hierarchical folders and searched by Tags or using the integrated search engine.

Features: folder organization, Import from ZIP, full-text Indexin...

[8 users on Ohloh]
PHPTAL is a PHP implementation of ZPT work. To be short, PHPTAL is a XML/XHTML template library for PHP.

While most web developpers continue to use ASP/JSP/PHP tags as the core language of their templates, the Zope community came with a refreshing idea named TAL. The idea was to move presentation actions inside XHTML attributes instead of using plain tags or elements.