Modifier Stack

2D Modifier - Apply every 2D modifiers placed in a Modifier Stack Layer

The modifier stack is a reference to a Modifier Stack Channel .
It get back every 2D Modifier placed inside a Modifier Stack Layer .

The example below explains how a list of modifiers can be applied on a specific content area inside a Processor:

Deal with a group of 2D Modifier as you deal with Scene

Channel to pass and apply 2D Modifiers on different pipeline element form the Content