In case that could interest you: that's a very simple setup I used at the time of Poser10, and it seems to work with Poser13, firefly and superfly. This lies in a closed room, no lights

firefly:

and it works on superfly as well:

I don't remember exactly how I stumbled upon this setup, I just remember that I got inspired by the creation of an online-friend that was using C4D for a similar effect. I should revisit this setup, I'm pretty sure that it can be enhanced.

𝒫𝒽𝓎𝓁

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