1368 X3D 3.1 Model X3D is an integrated 3D graphics and multimedia framework in the ISO process for Information technology — Computer graphics, image processing and environmental representation. The standards pass through a number of member only and then public review processes, until they reach full ISO approval as international standards. 193 Central Digital Archive / Central Digital Archive 28 Aug 2013 http://www.web3d.org/realtime-3d/specification/version/V3.1 28 Aug 2013 fmt/580 PUID x3d File extension 922 X3D v3.1 <?xml version="1.0" encoding="UTF-8"?>.<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.1//EN" 1 Absolute from BOF 0 0 3C3F786D6C2076657273696F6E3D22312E302220656E636F64696E673D225554462D38223F3E0A3C21444F435459504520583344205055424C4943202249534F2F2F57656233442F2F4454442058334420332E312F2F454E22 Has priority over 638 Extensible Markup Language Is previous version of 1369 X3D Is subsequent version of 1367 X3D