Equalizer  1.6.1
Release Notes

Table of Contents


Welcome to Equalizer, the standard middleware to create and deploy parallel, scalable OpenGL applications. This release introduces major new features, most notably integrated head tracking using VRPN or OpenCV.

Equalizer 1.6.1 is a bugfix release over 1.6, fixing critical bugs.

Equalizer 1.6 is a feature release extending the 1.0 API, distilling over eight years of development and decades of experience into a feature-rich, high-performance and mature parallel rendering framework. It is intended for all application developers creating parallel, interactive OpenGL applications. Equalizer 1.6 can be retrieved by downloading the source code or one of the precompiled packages.


Equalizer provides the following major features to facilitate the development and deployment of scalable OpenGL applications. A detailed feature list can be found on the Equalizer website.

New in this release

Equalizer 1.6 contains the following features, enhancements, bug fixes and documentation changes over the Equalizer 1.4 release:

New Features





The following documentation has been added or substantially improved since the last release:

Bug Fixes

Equalizer 1.6.1 includes the following bugfixes over the 1.6 release:

Equalizer 1.6 includes various bugfixes over the 1.4 release, including the following:

Known Bugs

The following bugs were known at release time. Please file a Bug Report if you find any other issue with this release.


Equalizer is a cross-platform framework, designed to run on any modern operating system, including all Unix variants and the Windows operating system. Equalizer requires at least OpenGL 1.1, but uses newer OpenGL features when available. Equalizer uses CMake and Buildyard to create a platform-specific build environment. The following platforms and build environments are tested for version 1.6:

The Equalizer Programming and User Guide covers the basics of Collage programming. The API documentation can be found on github.

As with any open source project, the available source code, in particular the shipped examples provide a reference for developing or porting applications.

Technical questions can be posted to the eq-dev Mailing List, or directly to info@.nosp@m.equa.nosp@m.lizer.nosp@m.grap.nosp@m.hics..nosp@m.com.

Commercial support, custom software development and porting services are available from Eyescale. Please contact info@eyescale.ch for further information.