public void Apply([NotNull] WetDecal decal)
 {
     decal.Settings.Saturation = Saturation;
     Red.Apply(decal.Settings.YLayer.Channel1);
     Blue.Apply(decal.Settings.YLayer.Channel2);
     Green.Apply(decal.Settings.YLayer.Channel3);
     Alpha.Apply(decal.Settings.YLayer.Channel4);
 }
 public RainDecal(RainPuddle rain, WetDecal decal)
 {
     _rain  = rain;
     _decal = decal;
 }