Subsurface scattering isn't a big deal.
In most materials it is relevant at a scale of millimeters to centimeters. Here you are looking at a couple of mm of paint on a metal object that you are looking at from a distance of several m.
Why on earth would you make the effort to simulate insignificant light paths?
It might make sense if you were rendering extreme close ups but really? This is a flight sim.
For the record I spend far too much of my time writing monte carlo renderers that follow insignificant light paths.
(, Sat 17 Apr 2021, 21:37, Share, Reply)