BRL-CAD is a powerful constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, and image and signal-processing tools.
Carina is an application written in C++ for viewing various 3D graphic file formats. While focusing on the xVRML file format, it also supports the X3D and VRML97 formats. Mostly for viewing files, it also contains some debug support to help people creating xVRML content. It can save any file it can open as xVRML. xVRML is an XML-based virtual reality language. Classroom testing has shown that new users who are already familiar with HTML can become proficient in xVRML with just a few weeks of study and practice.
The Chemistry Development Kit (CDK) is a library of Java classes for chemo-, bioinformatics, computational chemistry, and chemometrics. It provides important algorithms like substructure search, SMILES, Gasteiger charges, QSAR descriptor calculation, 3D structure generation, 2D layout and rendering, many IO formats, atom typing, and more.
Coin is an implementation of Open Inventor. Open Inventor is the de facto standard API for retained-mode 3D graphics programming. Open Inventor has a highly extensible design, and has been designed to allow for rapid development of highly interactive 3D graphics applications in the fields of CAD, engineering, scientific computing, simulation, VRML, and visualization.
Comic Reader Pro is a program for displaying comic books in the cbr and cbz formats. It will also display any folder of JPEG images. It is designed to be fast, unobtrustive, uncluttered, and not get in the way of your viewing. You can auto-scroll your way through an entire comic using a single key or mouse button. You can adjust to a comfortable zoom level with smooth scaling, and when you come to a full page spread, simply hold the right mouse button down to snap out to full page view.
Ghostscript is a processor for PostScript and PDF files. It can rasterize these files to a wide variety of printers, devices for screen preview, and image file formats. Since applications tend to prepare pages for printing in a high-level format such as PostScript, most Unix users with low-level bitmap printers, such as inkjets, use GhostScript as part of the printing process. In addition, Ghostscript is capable of converting PostScript files, functionality comparable to Adobe Acrobat Distiller, but on the command line. In addition, Ghostscript is used for file import and viewing by a great many other applications, including xv, ImageMagick, gimp, and xdvi. Several GUI wrappers for viewing PostScript and PDF files exist, including GSview, ghostview, gv, ggv, and kghostview. This is far from a comprehensive list.