How VR Works  

Since the invention of the computer people have been building virtual worlds, computer models of real or imaginary worlds that allow the user to interact with objects or other people. The first of these "virtual worlds" were text based. Later they became image based .

(see virtual missile silo tour http://triggur.org/silo/

Today virtual worlds are being developed in 3 dimensions, populated with 3D objects that can be manipulated by the viewer  

VRML defined
Virtual Reality Modeling Language - a programming language that allows the construction of 3 dimensional spaces and objects.  

                VRML Example (view the source code)               

 

VR Worlds
The 3D spaces created with VRML are commonly referred to as  "worlds." Theses "worlds" may be microcosms populated by only a single object, or with multiple objects, or they may be expanded to include huge numbers of objects and even VR communities populated with virtual representations of real people, called avatars. When you visit a VR community you see the avatars of other visitors - they see you! Your avatars interact, even speak, like real people.  

            Thor the Avatar

 

VRML flavors
Despite the establishment of a "standard" - an accepted form of the VRML programming language -  VRML code has been modified by a number of vendors to accommodate non-standard features offered by various VRML developing tools. At some sites you may be required to download specific browser plug-ins to view content.  

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