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The Hardware Assisted Visibility Sorting (HAVS) algorithm is a GPU-based, direct volume renderer for unstructured grids. The algorithm operates in both object- and images-space and includes a sample-based, dynamic level-of-detail algorithm.
Extendable widget based GUI framework for 3D applications. Works with any graphics API or render engine. Comes with reference implementations for OpenGL and the Ogre rendering engine. Library is written in C++, aimed at game developers.
Fully customizable and configurable global illumination ray tracer written in C++. H-RT is a research project aimed at comparing popular and less popular light reflection models.
You can obtain the sourcecode of H-RayTracer at (Mercurial repository):
https://bitbucket.org/bayger/hrt
XEngine is a platform- and rendering-API-independent 3D engine for real-time visualization with support for programmable graphics pipeline architectures implemented in C++. Platforms: Windows, Linux. APIs: OpenGL 1.3+, Direct3D 8.1, Direct3D 9.0
The X3DToolKit is a developer's API that allows you to load X3D files into a logical graph. That graph can then be traversed and converted into your favorite Graphic Scenegraph or can be rendered using X3DTK's OpenGL scenegraph.
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vuVolume is a framework for volume rendering algorithms in C++. When creating a new rendering method in vuVolume it is possible to just concentrate on the actual algorithm and let the framework take care of the more administrative tasks.
Ambient Occlusion research project on graphics hardware Uses Cg/OpenGL. Presents a new image space algorithm that allows for local ambient occlusion effects; and a sphere based approximation with ambient occlusion using a sprite based approach.
3D simulation projects including realistic sky and atmosphere rendering and wavelength/spectrum based color rendering. May also later contain cloud and terrain generation.
KAGEfx is a framework to load shader programs based on the OpenGL Shading Language contained within an XML file that holds descriptive metadata about the shader and to replace shader modules on the fly with respect to their level-of-detail metadata.
osgDesigner is a graphical tool used to modify an OpenSceneGraph (OSG) scene using the osgIntrospection framework. OpenSceneGraph developpers will be able to extend osgDesigner at need using (editor | render | osgIntrospection wrapper) plugin system.
BlitzDirect is a 3D engine that works on Windows XP and Windows Vista. It uses DirectX 9 and DirectX 10 if it is installed on the target system (e.g. Windows Vista) and OpenGL as an alternative. A graphical user interface (GUI) is also available.
Ocelot3D is a 3D Engine based on DirectX9. It uses direct3D features and it's full integrable with d3d code. You can also extend the engine thanks to the virtual hineritance structure
x86mph is an optimized library with vector, matrix, and vertex helpers (including an own TnL) It also contains memory helpers, and other stuff such as image processing (color inverting, changing bpp) taking advantage of x86's 3DNow!, MMX, and SSE
BOGL - an OpenGL scenegraph/renderer supporting modern hardware (vertex and pixel programs via Cg, buffer objects, etc), freetype fonts, XML resource files, bezier patches, state sorting, separate render and simulation threads.