Sample filter plugin based on Naughty Dog’s Filmic Tonemapper from GDC Uncharted 2 HDR Lighting presentation. @parameters
A: Shoulder strength.
B: Linear strength.
C: Linear angle.
D: Toe strength.
E: Toe numerator.
F: Toe denominator.
linearWhitePoint: Linear white point value.
exposureAdjust: Exposure adjustment. This parameter is multiplied by the incoming pixel.
aov: Name of AOV to apply filter to.