User Guide

GNU Image Manipulation Program
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Preview All your setting changes will appear in the Preview without affecting the image until you click on OK. Note that the
preview displays the whole image, even if the final result will concern a selection. Don’t keep Do Preview checked if your
computer is too much slow.
Options
Antialiasing Antialiasing: This option reduces the stepped aspect that may have borders.
Color Averaging Color Averaging When this option is unchecked, the image drawing can be recognized inside tiles.
When checked, the colors inside tiles are averaged into a single color.
Allows Tile Splitting Allows Tile Splitting: This option splits tiles in areas with many colors, and so allows a better color
gradation and more details in these areas.
Pitted Surfaces Pitted Surfaces: With this option tile surface looks pitted.
FG/BG Lighting FG/BG Lighting: When this option is checked, tiles are lit by the foreground color of the toolbox, and
shadow is colored by the background color. Joins have the background color.
Parameter setting
Tile Size Tile Size: Slider and input box allow you to set the size of tile surface.
Tile Heigth Tile Heigth: That’s ledge, relief of tiles. Value is width of the lit border in pixels.
Tile Spacing Tile Spacing: That’s width of the join between tiles.
Tile Neatness Tile Neatness: When set to 1, most of tiles have the same size. With 0 value, size is determined at random
and this may lead to shape variation.
Light Direction Light Direction: By default light comes from the upper left corner (135). You can change this direction
from 0 to 360 (counter clockwise).
Color Variation Color Variation: Each tile has only one color. So, the number of colors is reduced, compared to the
original image. Here, you can increase the number of colors, a little.
Tile Primitives This options are self-undestanding:
• Squares
• Hexagons: (hexa = 6)
• Octogons and Squares: (octo = 8)
15.10.7 Page Curl
15.10.7.1 Overview
You can find this filter through Filters → Distorts → Page Curl.
It curls a corner of the current layer or selection into a kind of cornet showing the underlying layer in the cleared area. A
new "Curl Layer" and a new Alpha channel are created. The part of the initial layer corresponding to this cleared area is also
transparent.