VRML (Virtual Reality Modeling Language) was developed with the intention of providing people with a standard tool that they could use to view and interact with 3D models on the Web.
The file structure of the VRML files is based on the Inventor format where there is a hierarchical arrangement of nodes.
VRML 2 resembles to the structure of VRML1 but uses slightly different keywords. E.g. vertex becomes point, DEF Default shader group becomes material DEF Default shader Material.
These are the main differences between VRML 1 and VRML 2:
|VRML 1.0||Standard objects (cube, sphere, cone, cylinder, text)|
|Arbitrary objects (surfaces, linesets, pointsets)|
|Ability to fly through, walk through, examine scenes|
|Textures on objects|
|Define and reuse objects|
|VRML 2.0 All VRML 1.0 features plus||Animated objects|
|Interpolators (colors, position, orientation, and so on)|
|Background colors and textures|
|Sound (.wav and MIDI)|
|Define and reuse objects and behaviors and effectively add new nodes to the language with PROTO and EXTERNPROTO|