> That's the magnetic field in ways it has never been seen before. 



> Being able to display magnetic/electric fields would be big plus for the
> scientific community.

It's good to have tools like that, but I think it's a
bit too specialized for a general raytracer. Things like
this might be better packaged as your own cool science
app that has an export mode for povray density files
and a sample scene for rendering.

> Quick question, is there anyway to generate density filenames based on the
> clock?  I would like to have slightly different named density files for each
> frame if it was possible.

You should be able to use a combination of concat()
and str() for that (see 3.2.1.7.4 string functions)

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