PREAMBLE
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Mitsuba is a GPLv3 research-oriented rendering system in the style of
PBRT. It is written in C++, implements unbiased as well as biased techniques,
and contains heavy optimizations targeted towards current CPU
architectures.
Mitsuba places a strong emphasis on experimental rendering techniques,
such as path-based formulations of Metropolis Light Transport and
volumetric modeling approaches.
http://mitsuba-renderer.org
This SlackBuild uses a git snapshot from 7 Feb 2015.
SEE ALSO
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There is a handy Mitsuba Blender plugin available from SlackBuilds.org so that you can use Mitsuba as your Blender renderer.