HELP! * GREY=local LOCAL HTML version of Foils prepared 7 April 1997

Foil 6 General Structure of VRML

From Overview of VRML 1.0 Language with Examples CPS616 Basic Information Track for Computational Science -- Winter-Spring Semester 96 and 97. by Geoffrey C. Fox, Alvin Leung, Meryem Ispirli * See also color IMAGE

Comments begin with # and all characters after this in line are ignored -- just like PERL
VRML 1.0 files are currently ascii and stored as name.wrl
  • i.e. .html specifies HTML and .wrl VRML files (.wrl abbreviates world)
The MIME type for VRML is defined as x-world/x-vrml
  • where x-world is MIME major type to indicate a 3D descriptor
  • and minor type x-vrml indicates VRML 1.0
  • becomes model/vrml in VRML2.0
A VRML file contains one and only one scene graph defined by ONE VRML node at top level
  • This top level is likely to be a group node with lots of child nodes
We will stick at VRML 1.0 and not discuss 1.1 as this is an intermediate stopping point to be overtaken by VRML 2.0 and so unlikely that set of VRML 1.1 browsers will exist before 2.0 takes over!



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