If you like Pov-Ray as a renderer, you can export the scene you made in Blender into Pov-Ray with povanim. Povanim operates an .ini file that contains command line keys used by Pov-Ray. Some of them are very critical. If you want to archive really greate results in Pov-Ray, you might want to know how it works. This tutorial explains the meaning of each key listed in the .ini file generated by povanim.