Jmol is a Free, Open Source molecule viewer and editor. It is a collaboratively developed visualization and measurement tool for chemical scientists. Jmol is an active project, and there are new features being added to it on a daily basis. Users are encouraged to modify it to fit their needs and to contribute their changes to the project.
VMD (Visual Molecular Dynamics) is designed for the visualization and analysis of biological systems such as proteins, nucleic acids, lipid bilayer assemblies, etc. It may be used to view more general molecules, as VMD can read standard Protein Data Bank (PDB) files and display the contained structure. VMD provides a wide variety of methods for rendering and coloring a molecule: simple points and lines, CPK spheres and cylinders, licorice bonds, backbone tubes and ribbons, cartoon drawings, and others. VMD can be used to animate and analyze the trajectory of a molecular dynamics (MD) simulation. In particular, VMD can act as a graphical front end for an external MD program by displaying and animating a molecule undergoing simulation on a remote computer. VMD uses OpenGL and OpenGL Programmable Shading Language for high performance rendering of large structures.
ImLib3D is a C++ library and visualization system for 3D (volumetric) image processing. It contains most basic image processing algorithms, as well as some more sophisticated ones. Its images are STL-compliant templated containers. It inculdes a viewer that features multiplanar views, interactive image processing, animations, vector field views, and 3D (OpenGL) multiplanar. Its main application is medical image processing.
JMV (The Java Molecular Viewer) is a molecule viewer program/component written in Java and Java3D. It is designed to be an easy-to-use, platform neutral molecular visualization tool which can be used standalone or integrated into a larger program. It provides several molecular representations, multiple coloring styles, lighting controls, and stereoscopic rendering capabilities. It loads PDB files over the web, from the RCSB protein databank, from BioCoRE filesystems, and from local filesystems. The interface can be customized by users, and can be disabled for web-based presentations of molecules to save browser space.
FastVox is an API for volume visualization that can be embedded into OpenGL displays. It features a multi-threaded realtime volume rendering engine which is based on a set of plugins that range from high-speed software-based renderers to hardware-accelerated renderers designed for current generation graphics hardware.
The OpenVL library is a framework for working with 3D volumetric datasets. It provides a standard and uniform API to volumetric data access, storage, and processing. It is designed and built to be fast, extensible, flexible, and easy to use. The library is completely open-sourced and encourages contribution. This library is an ideal choice if you want to write applications that deal with 3D volumes.
Brook for GPUs is a compiler and runtime implementation of the Brook stream programming language for modern graphics hardware. The goals for this project are to demonstrate general purpose programing on GPUs, to provide a useful tool for developers who want to run applications on GPUs, and to research the stream language programming model, streaming applications, and system implementations.
Julius MV1 is a showcase application for the Julius framework. It can be used as a fully functional DICOM 3.0 or RAW volume viewer as well as a viewer for large polymesh datasets. It also provides basic data processing features such as volume segmentation or polymesh decimation. Julius MV1 can be used as a basis and testbed for other applications developed with the Julius Framework. The Julius Framework (which comes bundled with MV1) is a general software architecture for medical visualization, simulation, and navigation.