If anybody tries POV-Ray I advise to get 3.7; though it is marked as Release Candidate is OK and quite faster then 3.6.

Quality wise, Lux (obviously) blasts POV-Ray but POV-Ray might still have its place if you plan to add POV-specific code to the scene in addition to Poser exports (a naked Vicky surrounded by isocacti?)

Personally, being by now comfortable with tools like Vue, Blender, Wings3D and SketchUp, have shelved POV-Ray under the fond-memories category.

As far as I know Kerkythea development is, using a DAZ-ism, "on hold" as (understandably) its developers are focused on the commercial Thea engine.

GIMP 2.7.4, Inkscape 0.48, Genetica 3.6 Basic, FilterForge 3 Professional, Blender 2.61, SketchUp 8, PoserPro 2012, Vue 10 Infinite, World Machine 2.3, GeoControl 2