lylejk wrote:
I would like to test your Script-fu too Kevin, if you don't mind that is. As for the original plugin, I did manually edit it and played with a few shapes. Anyway, what would be cool is incerting disks, but I can't get it to give you true circles for whatever reason. What I really would like is a dynamically sizing disk (spheres would be cool too) based on a criteria such as value, color, or saturation; a Perculator killer if you will. Not sure how to code such a Script-fu though.

You're very welcome to try it out, but be warned, it is only a proof-of-concept at the moment, so it doesn't do anything helpful, like point the camera at the middle of the image.
Thinking ahead I can see the user interface becoming enormously complicated, so a move to python and using PyGTK or TkInter to build the GUI is probably in order. Any volunteers??

I don't know this Perculator of which you speak, but changing object sizes (or other aspects) is straightforward BUT efficient packing afterwards is more than I could cope with.
As for "true circles", I suspect you're not thinking 3-dimensionally - the edges of the "image" are further away from the camera, so you get perspective distortion. You can also get distortion with camera settings that conflict with the aspect ratio of the image you try to render (640x480 etc).
I'm not at a machine with POVray installed, but I suspect that if you change the camera type to orthographic, you'll get what you're looking for:
http://www.povray.org/documentation/view/3.6.1/245/Kevin
p.s. As it's a work in progress, I haven't set the menu location to something friendly - it locates itself at Script-Fu>>Kevin>>POVray Samples...
Edit: Removed the version of the script from this post - it's been superseded.