Takes two incoming video signals and blends them using a number of well known algorithms, such as: Normal, Lighten, Darken, Multiply, Average, Add, Subtract, Difference, Exclusion, Screen, Overlay, Soft Light, Hard Light, Dodge, Burn, Linear Light, Vivid Light, Pin Light, Hard Mix, Reflect, Glow and Phoenix. Of the two video signals, the second video signal (In 2) is blended over the first (In 1), with an amount of opacity applied to 'In 2' as specifid by the 'Amount' option.