In OpenGL most of the time involved was in the programming. But in povray the scene description itself was fast, small and simple, so my time there was involved more with scene parameters, like the bridle lines, ambient lighting, anti-aliasing.
The scene on my pentium II computer takes 13.1 seconds (povray is also good at statistics) and takes about 4 minutes to generate the full animate shown. This includes the final conversion to GIF, as options allow povray to call a small shell script to combine all the animation frames (in PNG format) to the optimised GIF animation (see image above). Not bad at all.
OpenGL though is quicker though it generally requires actual display hardware to do its job, and special sub-routines, so batch operation is much more difficult. Of course the result is not nearly as good as the above.