# Iterate Buffer node

The Iterate Buffer node samples its input into a texture of a given resolution, applies a “loop subgraph” several times and outputs the result.

Iterate buffers are used to apply a transform or filter several times to an input image and can thus be used to implement filters that require multiple passes.

## Inputs

The Iterate Buffer node has an initialization input that provides the base image, and a loop input that provides the image transformed by a single pass.

## Outputs

The Iterate Buffer node has 2 outputs:

- the first output is the main output that provides the final result

- the second output is the loop output that provides the image for each iteration

## Parameters

The Iterate Buffer node has two parameters:

- the texture resolution

- the number of iterations for the loop