A stairwell, this time rendered deliciously in Krakatoa! This was my very first attempt messing with Krakatoa what-so-ever so I am pleased by what I got pretty much right out of the box. Even though the PRT exporter in Naiad seems to export sub-frames as well, not sure why, Krakatoa ate all 16.9 million particles up and spit them back out no problem.
So, simulated 16.9 million particles took around 11hours, roughly, the PRT export took another 2hours. Thankfully the Krakatoa render took only around 3hours, even with 12 steps of Motion Blur added on top.