The Persistence of Vision Raytracer is a high-quality, totally free tool for creating three-dimensional graphics.
At NSC it is installed primarily as a tool for visualisations, animations and creation of publication quality images. There are both single-threaded versions and multi-threaded versions available. While on a login node, please only use the single threaded version in your work.
At the time of writing, version 3.6.1 is the stable and single-threaded version of POV-Ray. Access to the binaries is via the module system, e.g.
module load povray/3.6.1
will give you access to the single threaded binary version 3.6.1.