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graphite: a portable graphics library, written in Java, JOGL and Postscript that allows rapid generation of high-quality graphs using an efficient, compact Java engine.
AGISim is a framework for the creation of virtual worlds for artificial intelligence research, allowing AI and human controlled agents to interact in realtime within sensory-rich contexts. AGISim is built on the Crystal Space 3D game engine.
The General Intensional Programming System (GIPSY) consists in three modular sub-systems: The General Intensional Programming Language Compiler (GIPC) ; the General Eduction Engine (GEE), and the Intensional Run-time Programming Environment (RIPE).
sheep is an open source rigid body dynamics engine written in modern, strictly portable C++. It features collisions between hierarchies of convex polyhedra (using the SWIFT library), resting contacts handling and an extensible set of joints.
OpenSim - Open Simulator. Primarily a 3D simulator for multiple indoor and outdoor mobile robots. Includes 3D real-time rendering (via OSG) and a physics engine (via ODE). Current emphasis is on manipulators.
the Balls Graphics Library aims to provide all the tools you
need to develop artificial worlds, including a script-driven 3D
modeler, OpenGL-based renderer, physical simulation engine,
and realistic image synthesizer.
Quake II Weapons Facotry (THE Team fortress for Quake II) meets Quake III Arena WFA. The engine is founded on Q2 GPL code, and uses the WFA media. Visit the main website for more details.
Open Source Stenography engine usable from the command line. Uses various techniques for hiding and retriving stenographic information. Includes a small image analysis suite for detecting stenographic images.
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QRay is an interactive 3D modelling system in Java. It's built-in real-time raytracing engine implements the Quadric-CSG representation model and the Seed-Fill optimization method, which empower QRay to provide cool WYSIWYG 3D modelling functionalities.
Ruby scripts grow 3D fractals and render them with PovRay, OpenInventor and YASRT. Includes (rough) ports of Lauren Lapre's LPARSER to GNU C++. Includes a RubyTk "sketch" output for quick previews as you edit a script.
Raytracing rendering engine written in Java. Plug it into a modeling environment, or programmatically create a scene. Uses Constructive Solid Geometries (CSG), bounding boxes, and fully extensible design (at least eventually).
CAVOR is an engine for building apps that involve both graphic and text/numeric data. Primarily GIS is the initial focus, but consider also CAD, CASE, project management (eg PERT charts), and others. Built-in scripting, C API, also supports Tcl and Java.
It's revolutionary invention for design of any product or design project, cause work with basics of Nature/Universe, it works with origin of all things created, a Light.
forssim is a complete free and open source surgery simulation engine. Together with voxel-based and polygon based models, it will let you practice on procedures like wisdom tooth extraction, with or without haptic feedback.
jlpv is a Java Light PACS Viewer application useful for review series or images from DICOM data retrieved from the DCM4CHEE PACS system. It also uses ImageJ as a rendering engine or viewer. This project is in a early stage.