Like HTML, VRML (Virtual Reality Modeling Language) is a kind of plain text scripting language used for describing 3D objects on the Internet.  It can properly describe the object properties, lighting, texture and camera angle etc. and allow the viewer to make real-time interactions (e.g. moving, rotating and  zooming) with objects and scenes. The language was first drafted mostly by the SGI company (VRML 1.0 version) based on their existing 3D technologies and was later recognised by the ISO as VRML 2.0 or VRML97.  For the two most popular web browsers, i.e. Netscape and Internet Explorer, a VRML plugin is needed to view the VRML objects.  Some free VRML plugins are given below for you install one of them before you can view the examples:

• Cosmo Player 2.x plugins (for browsers in Windows 95/98/NT/2000/XP and Irix 6.5) - http://www.karmanaut.com/cosmo/player/
• SIM VRMLview browser (for Windows 95/98/NT/2000/XP, Linux and Irix 6.5) - http://www.sim.no
• Cortona VRML Client 3.x (for Windows and Mac) - http://www.parallelgraphics.com
• Blaxxun 3D plugin (for browsers in Windows 95/98/NT/2000) - http://www.blaxxun.com
• Free WRL (for Unix and Linux) - http://www.crc.ca/FreeWRL