9.5.2

Table Of Contents
872 CHAPTER 18
THE SHADERS 873
Subtract
The Blend channel is subtracted from the Base channel.
Difference
Subtracts the Blend channel’s color from the color of the Base channel or vice versa, depending on
which is lighter.
Exclusion
Similar to Difference mode, but the effect is softer. This mode is the equivalent of Screen - Multiply.
Hue
The hue of the Blend channel is applied to the Base channel.
Saturation
The saturation of the Blend channel is applied to the Base channel.
Color
The hue and saturation of the Blend channel is applied to the Base channel.
Luminance
The luminance of the Blend channel is applied to the Base channel.
Levr
The value of the Blend channel is used to apply contrast to the Base channel and is affected by the
Blend amount.
Blend
The opacity level of the Blend channel to be applied to the Base channel.