VRML Filename extension
Internet media type
Latest release 2.0 Type of format 3D computer graphics Extended from Labyrinth Standard(s) ISO/IEC 14772-1:1997 Website www.web3d.org/x3d/vrml
VRML (Virtual Reality Modeling Language, pronounced vermal or by its initials, originally—before 1995—known as the Virtual Reality Markup Language) is a standard file format for representing 3-dimensional (3D) interactive vector graphics, designed particularly with the World Wide Web in mind. It has been superseded by X3D.
VRML files are commonly called "worlds" and have the *.wrl extension (for example island.wrl). Although VRML worlds use a text format, they may often be compressed using gzip so that they transfer over the internet more quickly (some gzip compressed files use the *.wrz extension). Many 3D modeling programs can save objects and scenes in VRML format.
The Web3D Consortium has been formed to further the collective development of the format. VRML (and its successor, X3D), have been accepted as international standards by the International Organization for Standardization (ISO).
The first version of VRML was specified in November 1994. This version was specified from, and very closely resembled, the API and file format of the Open Inventor software component, originally developed by SGI. The current and functionally complete version is VRML97 (ISO/IEC 14772-1:1997). VRML has now been superseded by X3D (ISO/IEC 19775-1)
Emergence, popularity, and rival technical upgrade
The term VRML was coined by Dave Raggett in a paper submitted to the First World Wide Web Conference in 1994, and first discussed at the WWW94 VRML BOF established by Tim Berners-Lee, where Mark Pesce presented the Labyrinth demo he developed with Tony Parisi and Peter Kennard.
In 1997, a new version of the format was finalized, as VRML97 (also known as VRML2 or VRML 2.0), and became an ISO standard. VRML97 was used on the Internet on some personal homepages and sites such as "CyberTown", which offered 3D chat using Blaxxun Software. The format was championed by SGI's Cosmo Software; when SGI restructured in 1998 the division was sold to Platinum Technologies, which was then taken over by Computer Associates, which did not develop or distribute the software. To fill the void a variety of proprietary Web 3D formats emerged over the next few years, including Microsoft Chrome and Adobe Atmosphere, neither of which is supported today. VRML's capabilities remained largely the same while realtime 3D graphics kept improving. The VRML Consortium changed its name to the Web3D Consortium, and began work on the successor to VRML—X3D.
SGI ran a web site at vrml.sgi.com on which was hosted a string of regular short performances of a character called "Floops" who was a VRML character in a VRML world. Floops was a creation of a company called "Protozoa".
H-Anim is a standard for animated Humanoids, which is based around VRML, and later X3D. The initial version 1.0 of the H-Anim standard was scheduled for submission at the end of March 1998.
VRML provoked much interest but has never seen much serious widespread use. One reason for this may have been the lack of available bandwidth. At the time of VRML's popularity, a majority of users, both business and personal, were using slow dial-up internet access. This had the unfortunate side effect of having users wait for extended periods of time only to find a blocky, ill-lit room with distorted text hanging in seemingly random locations.
VRML experimentation was primarily in education and research where an open specification is most valued. It has now been re-engineered as X3D. The MPEG-4 Interactive Profile (ISO/IEC 14496) was based on VRML (now on X3D), and X3D is largely backward-compatible with it. VRML is also widely used as a file format for interchange of 3D models, particularly from CAD systems.
A free cross-platform runtime implementation of VRML is available in OpenVRML. Its libraries can be used to add both VRML and X3D support to applications, and a GTK+ plugin is available to render VRML/X3D worlds in web browsers.
In a September 17, 1998 Computergram International essay, "VRML Versus Chromeffects: Microsoft Replies", Rachel Chalmers sharply criticized VRML as having "no integration with HTML", whereas "ChromEffects is based on 56 multimedia XML tags". She did not criticize X3D (though extended from VRML as well as XML), because X3D already had this integration. However, VRML survived Chromeffects, canceled in November 1998.
In the 2000s, many companies like Bitmanagement improved the quality level of virtual effects in VRML to the quality level of DirectX 9.0c, but at the expense of using proprietary solutions. All main features like game modeling are already complete. They include multi-pass render with low level setting for Z-buffer, BlendOp, AlphaOp, Stencil, Multi-texture, Shader with HLSL and GLSL support, realtime Render To Texture, Multi Render Target (MRT) and PostProcessing. Many demos shows that VRML already supports lightmap, normalmap, SSAO, CSM and Realtime Environment Reflection along with other virtual effects.
- 3DMLW: 3D Markup Language for Web
- COLLADA: managed by the Khronos Group
- O3D: developed by Google
- U3D: Ecma International standard ECMA-363
- Unity3D: a game engine which can be used online via a browser plugin
- X3D: successor of VRML
- Active Worlds virtual reality multi-user 3D chat platform
- Blaxxun virtual reality multi-user 3D chat platform
- Flux, freely downloadable VRML/X3D editor/browser, now discontinued
- FreeWRL, free Open Source VRML/X3D browser
- List of vector graphics markup languages
- MeshLab open source mesh processing system that can export VRML/X3D
- OZ Virtual
- Seamless3d free Open Source 3D modeling software for Microsoft Windows
- Virtual tour
- Virtual Environment Software
- Additive Manufacturing File Format
- ^ Paul Festa and John Borland (May 19, 2005). "Is a 3D web more than just empty promises?". CNET News.com. http://news.zdnet.co.uk/internet/0,1000000097,39199121,00.htm.
- ^ "Version 1.0 Specification". Web3d.org. http://www.web3d.org/x3d/specifications/vrml/VRML1.0/index.html. Retrieved 2010-02-23.
- ^ "First World Wide Web Conference". 4.web.cern.ch. http://www94.web.cern.ch/WWW94/. Retrieved 2010-02-23.
- ^ Media Machines Management
- ^ "Peter Kennard's page". Livingwork.com. http://www.livingwork.com/peterk/. Retrieved 2010-02-23.
- ^ A Commentary on GeoVRML
- ^ "Floops general narrative". Biota.org. http://www.biota.org/book/chbi/chbi2.htm. Retrieved 2010-02-23.
- ^ "Floops in his first episode". http://www.digitalspace.com/avatars/book/authorp/floplate.jpg. Retrieved 2010-02-23.
- ^ David Sabine. "What is (was) VRML?". http://www.virb.com/DavidSabine/posts/text/3658075.
- ^ "XML Matters". Ibm.com. http://www.ibm.com/developerworks/xml/library/x-matters43/index.html. Retrieved 2010-02-23.
- ^ Rachel Chalmers: VRML Versus Chromeffects: Microsoft Replies (BNET)
- ^ Rachel Chalmers: VRML Versus Chromeffects: Microsoft Replies (CBR)
- ^ Microsoft Debuts Chromeffects; Microsoft Shelves Chromeffects
- ^ DrawGroup & DrawOp
- ^ Multitexturing
- ^ Programmable shaders component
- ^ Scene postprocessing support
- ^ VRML X3D and Realtime Web3D
Example documents of VRML code
- VRML examples from the VRML Sourcebook (to get the example VRML code, click on a chapter, then on a figure)
- VRML and X3D Plugin Detector that determines which VRML and X3D plugins are installed in your web browser
- comp.lang.vrml newsgroup
- VRML at the Open Directory Project
- VRML Archives
- VRML Annotated Reference
- VRML ISO/IEC 14772 standard document
- VRML and X3D description
- Extensible 3D: XML Meets VRML
- Web3D Consortium
- H-Anim working group
- Articles by Sandy Ressler formerly on About.com
Vector graphics markup languages and file formats By type2D3D See also
Wikimedia Foundation. 2010.
Look at other dictionaries:
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