I've done some work with pulling config data from databases, and then using povray to generate scads of images for a few companies. Not the fastest, but decent.

In my spare time, I've been working on adapting povray source to XS, so I can build modules, and then a mod_perl module / mod_pov for apache. It would be nice to have slightly faster semi-real-time raytracing going on. If you want faster, you go for scanline rendering, like blender. The quality isn't as good, but for basic graphs, it's pretty clever.