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X3D - Extensible 3D Graphics
Filename extension .x3dv, .x3d, .x3db (plain)
.x3dvz, .x3dz, .x3dbz (compression)
Internet media type model/x3d+vrml
Latest release 3.2, 3.1, 3.0
Type of format 3D computer graphics
Extended from VRML, XML
Standard(s) ISO/IEC 19775/19776/19777

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, or binary formatting, and enhanced application programming interfaces (APIs).



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. Formal review and approval is then performed by the International Organization for Standardization (ISO).

Liaison and cooperation agreements are also in place between the Web3D Consortium and the World Wide Web Consortium (W3C), Open Geospatial Consortium (OGC), Digital Imaging and Communications in Medicine (DICOM) and the Khronos Group.

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]


There are several applications, most of them being open source software[3], which natively parse and interpret X3D files, including the 3D graphics and animation editor Blender3D[4] and the Sun Microsystems virtual world client Project Wonderland[5]. An X3D applet is a software program that runs within a web browser that displays content in 3D, using OpenGL 3D graphics technology to display X3D content in several different browsers (IE, Safari, Firefox) across several different operating systems[6](Windows, OSX, Linux). However, X3D has not received a wider ground of acceptance in other, more notable and proprietary software applications.


  • 3DMLW — 3D Markup Language for Web
  • COLLADA — managed by the Khronos Group
  • O3D — developed by Google
  • U3D — Ecma International standard ECMA-363
  • VRML — precursor of X3D

See also


External links


Example documents of X3D code




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