The optional Iteration slave component of a Loop outputs the raw iteration number as an HDR color with RGB values corresponding to the number of current iteration (e.g. 1, 2, 3...).
This slave component must be connected to the subtree of its master's Accumulator input through a subtree of components, not directly. The connection between this slave component and its master Loop component must not be routed through any bitmap-based components.
For general information about slave components, see Slave components.
Defines an additive constant to be added to the iteration number. Offset will be applied after Multiplier.
Defines a multiplier for the iteration number.
Iteration (preview):
This slider allows you to preview the output of this slave component for any loop iteration, which is useful for creating and debugging the loop subtree. The values of the Iteration (Preview) sliders are synchronized across all slave components of Loop. The maximum value for this slider is defined by the Iterations input of the master Loop component.
Technically, this slider defines the output of the slave component in situations when it is sampled by any component which is not its master.
