This is the documentation for Enlighten.
Sponza Model
Sponza Model
August 19, 2010
The Atrium Sponza Palace, Dubrovnik, is an elegant and improved model created by Frank Meinl. The original Sponza model was created by Marko Dabrovic in early 2002. Over the years, the Sponza Atrium scene has become one of the most popular 3D scenes for testing global illumination and radiosity due to it's specific architectural structure which is particularly complex for global illumination light.
However, nowadays it is considered as a simple model, thus it was decided to create a new model with highly improved appearance and scene complexity. It is donated to the public for radiosity and is represented in several formats (3ds, Obj) for use with various commercial 3D applications and renderers.
(Source: http://www.crytek.com/cryengine/cryengine3/downloads, accessed 13 May 2013)