The maximum sample count used to compute sky/atmosphere scattering and transmittance The effective sample count is usually lower and depends on distance and SampleCountScale on the component, as well as .ini filesThe minimal value will be clamped to r.SkyAtmosphere.SampleCountMin + 1
Usage
r.SkyAtmosphere.SampleCountMax [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.