Apple Shake 4 - Manual (Page 609)

Chapter 22 Shake-Generated Images 609
Tile
The Tile node is located in the Other tab. Tile does not generate an image, but makes
small tiles of an image within that image. The more tiles created, the slower the
processing (for example, more than 40 tiles).
Parameters
This node displays the following controls in the Parameters tab:
nXTile
The number of times the image is duplicated and shrunk horizontally.
nYTile
The number of times the image is duplicated and shrunk vertically.