X3D

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 Please help improve this article or section by expanding it. Further information might be found on the talk page or at requests for expansion. (January 2008)
Not to be confused with 3DXML.
Extensible 3D (X3D) Graphics
Filename extension .x3dv, .x3d, .x3db
z finalizes extension when gzipped
Internet media type model/x3d+vrml
model/x3d+xml
model/x3d+binary
Latest release 3.2, 3.1, 3.0
Type of format 3D computer graphics
Extended from VRML, XML
Standard(s) ISO
Website http://www.web3d.org/x3d

X3D is the ISO standard XML-based file format for representing 3D computer graphics, the successor to the Virtual Reality Modeling Language (VRML).1 X3D features extensions to VRML (e.g. Humanoid Animation, NURBS, GeoVRML etc.), the ability to encode the scene using an XML syntax as well as the Open Inventor-like syntax of VRML97, and enhanced application programming interfaces (APIs).

Contents

Example X3D document

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.2//EN" "http://www.web3d.org/specifications/x3d-3.2.dtd">
<X3D profile='Immersive' version='3.0'   xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance'
                     xsd:noNamespaceSchemaLocation='http://www.web3d.org/specifications/x3d-3.2.xsd'>
 <head>
   <meta content='HelloWorld.x3d' name='title'/>
   <meta content='Simple X3D example' name='description'/>
   <meta content='30 October 2000' name='created'/>
   <meta content='11 October 2008' name='modified'/>
   <meta content='Don Brutzman' name='creator'/>
   <meta content='http://www.web3d.org/x3d/content/examples/HelloWorld.x3d' name='identifier'/>
   <meta content='http://www.web3d.org/x3d/content/examples/HelloWorldTall.png' name='image'/>
   <meta content='http://www.web3d.org/x3d/content/examples/license.html' name='license'/>
   <meta content='X3D-Edit 3.2, https://savage.nps.edu/X3D-Edit' name='generator'/>
 </head>
 <Scene>
   <Group>
     <Viewpoint centerOfRotation='0 -1 0' description='Hello world!' position='0 -1 7'/>
     <Transform rotation='0 1 0 3'>
       <Shape>
         <Sphere/>
         <Appearance>
           <Material diffuseColor='0 0.5 1'/>
           <ImageTexture url='"earth-topo.png" "earth-topo.jpg" "earth-topo-small.gif" 
             "http://www.web3d.org/x3d/content/examples/Basic/earth-topo.png" 
             "http://www.web3d.org/x3d/content/examples/Basic/earth-topo.jpg" 
             "http://www.web3d.org/x3d/content/examples/Basic/earth-topo-small.gif"'/>
         </Appearance>
       </Shape>
     </Transform>
     <Transform translation='0 -2 0'>
       <Shape>
         <Text solid='false' string='"Hello" "world!"'>
           <FontStyle justify='"MIDDLE" "MIDDLE"'/>
         </Text>
         <Appearance>
           <Material diffuseColor='0.1 0.5 1'/>
         </Appearance>
       </Shape>
     </Transform>
   </Group>
 </Scene>
</X3D>

Standardization

X3D defines several profiles (sets of components) for various levels of capability including X3D Core, X3D Interchange, X3D Interactive, X3D CADInterchange, X3D Immersive, and X3D Full. Browser makers can define their own component extensions prior to submitting them for standardisation by the Web3D Consortium.

A subset of X3D is XMT-A, a variant of XMT, defined in MPEG-4 Part 11. It was designed to provide a link between X3D and 3D content in MPEG-4 (BIFS).

The abstract specification for X3D (ISO/IEC 19775) was first approved by the ISO in 2004. The XML and ClassicVRML encodings for X3D (ISO/IEC 19776) were first approved in 2005.2

Applications

There are several applications, most of them being open source software, which natively parse and interpret X3D files, including the 3D graphics and animation editor Blender3D and the Sun Microsystems virtual world client Project Wonderland. However, it has not received a wider ground of acceptance in other, more notable and proprietary software applicationscitation needed.

Alternatives

See also

References

  1. ^ Paul Festa and John Borland (May 19, 2005). "Is a 3D web more than just empty promises?", CNET News.com. 
  2. ^ X3D FAQ – "What is the status of the X3D specification?". Retrieved on November 30, 2007.

External links

General

Documentation

Wikipedia content modification information:

  • This page was last modified on 15 November 2008, at 23:26.

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