The Image Tile Set  node allows you to define UDIM-like offsets in OctaneRender®. Also known as U-Dimension, the primary reason for UDIMs is image texture resolution, where you can have specific grids with close ups of specific parts of an object, such as an eye or engine in the same overall UV and texture set. By creating multiple UDIMs tiles in the grid, you can specifically tailor image maps to a needed use. The Image Tile Set node will reference UDIMs as a sequentially numbered image sequence, making working with said maps in applications like Nuke or After Effects a very simple process, since these maps are treated like typical rendered frames in these applications.