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== Open source applications ==
The open source software package Chromium (http://chromium.sourceforge.net) provides a parallel rendering mechanism for existing applications. It intercepts the [[OpenGL]] calls and processed them, typically to send them to multiple rendering units driving a [[video wall|display wall]].
The Equalizer project (http://www.equalizergraphics.com) is an open source rendering framework and resource management system for multipipe applications. Equalizer provides an [[Application programming interface|API]] to write parallel, scalable visualization applications which are configured at run-time by a resource server.
OpenSG (http://opensg.vrsource.org/trac) is an Open Source scenegraph system that provides parallel rendering capabilities, especially on clusters. It hides the complexity of parallel multi-threaded and clustered applications and supports sort-first as well as sort-last rendering.
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