This filter cuts the image (active layer or selection) into several pieces, with square form, and then slides them so that they, more or less, overlap or move apart. They can go out image borders a little.
X, Y and Size parameters are linked, because filter starts cutting image before it displaces pieces; so, piece size and number of pieces in horizontal (X) and vertical (Y) directions must be convenient to image size.
Max% is the maximum displacement percentage against the side size of squares.
Wrap around : As tiles move, some can go out image borders. If this option is checked, what goes out on one side goes in on the opposite side.
Because of image cutting, original pixels can persist. There are three ways treating them:
Background: Remaining pixels will be replaced with the background type defined in the following section.
Ignore: Background Type option is not taken into account and remaining pixels are kept.
Force: Remaining pixels will be cut also.
You can select the background type which will be used, if the Background radio-button is checked, among six options:
Transparent: Background will be transparent.
Inverted image: Background colors will be inverted (255-value in every color channel).
Image: Background colors will be unchanged. The original image is the background.
Foreground Color: Remaining pixels will be replaced by the Foreground color of Toolbox.
Background Color: Remaining pixels will be replaced by the Background color of Toolbox.
Select here: When this radio-button is checked, clicking in the color dwell will open a Color Selector where you can select the color you want for background.
If this option is checked, tiles will rather be gathered together in the center of the image.