Cut off the history weight to zero at CIE DeltaE for low frequency1.0 :the just noticeable difference (JND)2.0 :perceptible for close loo10.0:Perceptible at a glance This works as an alternative control instead of kappa. 2 as default.
Usage
r.PathTracing.TemporalDenoiser.DeltaE [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.
