Open Game Engine Exchange

OpenGEX
Filename extension
.ogex
Internet media type
model/vnd.opengex
Developed byEric Lengyel
Initial release21 December 2013 (2013-12-21)
Latest release
3.0
2 February 2021 (2021-02-02)
Type of format3D computer graphics
Extended fromOpenDDL
Open format?Yes
Websiteopengex.org

The Open Game Engine Exchange (OpenGEX) is a format that aids the application-agnostic transferring of complex scene data between 3D graphics apps including game engines and 3D modelling apps. It uses Open Data Description Language for data storage, a method for arbitrary data storage that maintains human readability. The OpenGEX file format is registered with the Internet Assigned Numbers Authority (IANA) as the model/vnd.opengex media type.

The OpenGEX format is defined by the Open Game Engine Exchange Specification, which is available on the official website opengex.org.

Export plugins that write the OpenGEX format are available for Autodesk Maya and 3D Studio Max, with an unofficial plugin available for Blender.