With this filter, your image (active layer or selection) looks like a kaleidoscope. This filter duplicates your image in many copies, more or less dimmed and split, and puts them around the center of the image.
12.5.2.
Activate the filter
This filter is found in the image window menu under Filters → Map → Illusion.
12.5.3. Options
Figur 16.245. “Illusion” filter options
Divisions
That's the number of copies you want to apply to image. This value varies from -32 to 64. Negative values invert kaleidoscope rotation.
Modes
You have two arrangement modes for copies in image:
Figur 16.246. From left to right: original image, mode 1, mode 2, with Divisions=4