UDIM Import lets you import a set of texture patches that follow the UDIM numbering scheme and quickly apply them to the surface of a 3D object. Clicking on UDIM Import opens the standard Read File(s) file browser. Browsing to, and selecting, a sequence containing valid UDIM patches opens the UDIM Import dialog. The UDIM Import dialog lists all the UDIM patches in a sequence and provides some options for managing them. If you select a file that doesn’t contain a valid UDIM number, a dialog displays explaining the problem.
UDIM Import creates a Read node for every patch in the sequence and appends a UVTile node (which allows you to modify a patch’s coordinates in UV space) to each one. For more information on the UVTile node see UVTile
The UDIM Import dialog lets you disable individual patches in a sequence, add additional files and set how the Read nodes (for each individual patch) are displayed in the Node Graph. Enabling postage stamp displays a thumbnail view of the patch in the Read node. Checking group nodes adds the nodes to a single group node for clarity.