Welcome to Equalizer 0.5.4, a framework for the development and deployment of parallel, scalable OpenGL applications. Equalizer 0.5.4 adds support for orthographic projections.
Equalizer 0.5.4 is a developer release, representing a stable snapshot of the
development tree after the 0.5 release. Equalizer 0.5.4 can be retrieved
using:
svn co https://equalizer.svn.sourceforge.net/svnroot/equalizer/tags/release-0.5.4
Features
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.
- Runtime Configurability: An Equalizer application can run on any configuration, from laptops to large scale visualization clusters, without recompilation. The runtime configuration is externalized from the application to a systemwide resource server.
- Runtime Scalability: An Equalizer application can use multiple CPU's, GPU's and computers to scale the rendering performance of a single view.
- Distributed Execution: Equalizer applications can be written to support cluster-based execution. The task of distributing the application data is facilitated by support for versioned, distributed objects.
- Support for Stereo and Immersive Environments: Equalizer supports both active and passive stereo rendering, as well as the head tracking, which is required for immersive Virtual Reality installations.
New in this release
The following features, bug fixes and documentation changes where introduced since the 0.5 release:
New Features
0.5.4:
- Added window attributes for accumulation buffer and AA samples
- Automatic 2D and DB load-balancing (initial support)
- Automatic image compression for 'slow' (< 2GBit) connections
- Improved statistics overlay appearance (auto-scaling, compression time)
0.5.3:
- Support for orthographic projections
0.5.2:
- Improved statistics overlay appearance
- Support for using Paracomp for alpha-blending compositing (eVolve)
- Support for using multiple clients with the netperf benchmark tool
0.5.1:
- Statistics Overlay to understand and eliminate bottlenecks in the rendering pipeline
- Support for using Paracomp as a compositing backend, see README.paracomp
- Network-based instead of file-based model distribution in eqPly
- Support for the window swapsync hint on WGL
Performance Improvements
0.5.3:
- Improved overall performance by using atomic operations for reference counted objects
- Improved performance when using non-threaded pipes
0.5.1:
- Alpha-blending support in the CPU-based compositor
- Improved performance when using non-threaded pipes
Bug Fixes
Equalizer 0.5.4 includes various bugfixes over the 0.5 release, including the following:
0.5.4:
- 2026837: swapbarrier calls increase with single-buffered windows
0.5.3:
- 1997751: defines for EQ_BIT17 - EQ_BIT20 are wrong
- 1996988: AGL reports key press twice
- 1997579: Important WGL key events not reported
0.5.2:
- Fixed a big memory leak in the packet handling code, as well as numerous small bug fixes and code cleanups
- 1994798: Compound::getNode null pointer read
- 1981854: AGL: PBuffer with Fullscreen broken
0.5.1:
Documentation
The Programming Guide has been extended to 57 pages. In addition, the following documentation has been added:
0.5.1:
API Changes
0.5.4:
The eqBase, eqNet and eqServer
namespaces have been renamed to eq::base, eq::net
and eq::server, respectively. Application developers are
encouraged to make the necessary changes, but can
define EQ_USE_DEPRECATED if these changes are not feasible.
Removed Features
None
Known Bugs
- 2003195: Ortho frustra ignores eye offset
- 2003132: 3-wnd.DB.ds is broken on some ppc machines for eqPly
- 1997583: eqPly: ortho frustum culling broken
- 1959418: DB Compositing fails on MacBook with GMA X3100
- 1854948: eVolve: lighting ignores head transformation
- 1854929: eqPly GLSL shader has artefacts
- 1816670: eVolve: binary swap configs don't work
Supported Platforms
Equalizer is a cross-platform toolkit, designed to run on any modern operating system, including all Unix variants and the Windows operating system. A compatibility matrix can be found on the Equalizer website. Version 0.5 has been tested on:
Operating System Support
- Linux: Ubuntu 6.10 (x64, i386), RHEL4 (x64, i386)
- Windows: XP with Visual Studio 2005 (i386, x64) and Cygwin (i386)
- Mac OS X: 10.5 (PowerPC, i386)
Window System Support
- X11: Full support for all documented features.
- WGL: Full support for all documented features.
- AGL: Full support for all documented features.
Documentation
The Programming Guide is part of the Equalizer and can be found online. Equalizer does not yet have an Users Guide. The shipped examples provides a reference for developing or porting applications. The Developer Documentation on the website provides further design documents for specific features. The source code is a last resort for information.
Support
Technical questions can be posted to the Developer Mailing List, or directly to [email protected].
Commercial support, custom software development and porting services are available from EyeScale. Please contact [email protected] for further information.