I've been playing with various approaches to rendering self-luminous portions of models. The first attempt was a simple cylinder, as in a straight fluorescent tube. I can't say that I got satisfactory results with PW.
A more generalized statement of the problem (and possibly an order of magnitude in complexity) would be to render a lightbulb with the filament glowing. The filament could be the only light source in the image being rendered.
Yet another application I know I'll have might require rendering LED lights shining through various materials. Again, each and every LED has to be a light source.
My gut feeling is that this is way beyond what SW+PW can be expected to do. I read a new thread about an Alias product that looks interesting. Is it time to consider an external solution?
Any ideas/pointers/thoughs in either direction?