VCG ShadeVis computes a simple, static (but much more correct) per-vertex ambient term. This effect, commonly known as ambient occlusion, is aimed at providing more faithful shading for realtime rendering. In practice, rather than considering the ambient lighting to exist uniformly throughout a scene, this approach determines the ambient brightness of each part of a surface to be proportional to the extent to which the surface has "its outward view of its environment" free (i.e., "occluded") by other surfaces of the object. The most common technique to compute ambient occlusion is based on shooting rays from each surface element to evaluate the quantity of light that reaches it. VCG Shadevis uses OpenGL to accelerate this process by simply rendering the scene orthographically from a set of uniformly-distributed directions and checking against the zbuffer whether each vertex is occluded.
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.
Verse is a network protocol and client/server application architecture for multiuser realtime distributed 3D graphics applications. It uses a lightweight server to store world data, and then relies on clients to connect and use the data in various ways. Verse uses subdivision surfaces as its single geometric primitive, which both conserves bandwidth and allows very good scalability and visual quality on modern 3D hardware.
The Interreality project is a collection of Open Source, Free Software projects based on the Virtual Object System (VOS) platform. The goal is to develop a free and open platform for multi-user 3D virtual reality games, applications, and interactive, collaborative 3D virtual spaces. VOS is a powerful and generic network object framework designed to support a variety of high-performance applications. It is the basis for Ter'Angreal, a general-purpose browser application for entering and participating in 3D worlds.
Vis/Space is a client-server system for visually exploring data structures in 3D virtual space. It allows the placement of various data sources in a three-dimensional environment. Custom search terms can be entered into a query field, or can be navigated to and from an existing object. All objects like images and "text screens" can be moved around. A single click on an image shows the full-resolution version in the foreground. Whole collections of images can be moved. A click to the cube also toggles among several different possible layouts. Data sources include search engines, microblogging, Wikipedia, image/video search, and 4chan.