Here are some renderings using POV-Ray 3.5c in parallel with Matthias' patch.
This curriculum module is based on photon mapping. Each scene is rendered three times: once with only ray tracing, once with photon mapping, and once with photon mapping with dispersion effects. Feel free to contact me at 'mccoyjo at cs dot earlham dot edu' if you would like the scripts and input files used in the curriculum module. The rendered animations are a bit large, so be warned.
Curriculum Module pdf
The following three files were rendered on our Little Fe cluster as part of our POV-Ray curriculum module:
