Cug is an equation plotter with a heavy emphasis on beautiful rendering. It can be considered a simple openGL modeler parameterized by mathematical equations. Extensive controls allow for real-time modification of lighting, coloring, texturing, fog, and a few other aspects. Rotation, panning, and zooming are easily controlled with the mouse. An off-screen rendering target allows for generation of large images. The excellent gtkmm and gtkglextmm libraries provide the interface.
XJRT is an open source Java renderer with a ray tracing backend. Objects can be fed into the renderer either through Java or an XML-based scene description language. Shaders can be written in Java and are instanced using the reflection API. The renderer currently supports a variety of polygons, polygon model formats (3ds, DXF, OBJ, and OFF), spheres and other quartics, cubic patches, heightfields, boxes, torii, blobbies, algebraic surfaces, constructive solid geometry (CSG), and a variety of light sources. Support code is provided for doing tiling, bump mapping, noise based texturing, camera based motion blur, and depth of field.
EQUINOX-3D is a 3D modeler with a very fast, fully integrated ray-tracer. It features read/write support for COLLADA, read support for Radiance's .hdr image format, 3DS (3D-studio) file format read support, multi-texturing, custom-programmable texture mapping, bump-mapping with automatic texture-space tangents, the ability to zoom into a region with "fly-to", and more. It includes a full runtime-class framework and a core design that allows for the addition of anything from a physics engine to a fully integrated renderer from a plugin. It is faster and more memory efficient than many other modelers.
Fluxus is a graphical live coding environment for Scheme. Fluxus reads live audio or OSC network messages which can be used as a source of animation data for real-time performances or installations. Keyboard or mouse input can also be read for simple game development, and a physics engine is included for realtime simulations of rigid body dynamics. The built in scheme code editor runs on top of the renderer, which means you can edit the scripts while they are running.
freeglut is intended to be a 100% plug-compatible clone, and is released under the Xfree license. The GLUT (OpenGL Utility Toolkit) is a widely used library for doing window control, keyboard, and mouse input, and other basic functions for OpenGL programs. However, GLUT is not OpenSourced - although it's source code is available under a somewhat ill-defined set of restrictions. Hence, 'freeglut'.
fsv, the 3D File System Visualizer, allows you to view a collection of directories and files as three-dimensional geometry. It represents all or part of a filesystem as a collection of blocks of varying sizes, each labeled with a filename, and arranged in a manner consistent with the original directory structure. fsv can visualize any arbitrarily large collection of files, limited only by memory and hardware constraints. Program features include an integrated 2D interface, intelligent camera handling, and extensive use of animation. fsv requires OpenGL.