User Guide

Textures, Patterns, and Weaves 127
• Thinness emphasizes the direction suggested by the lines of the fractal pattern.
Thinner lines produce a more linear look.
Low Thinness settings show the fractal as streaks. Use
the Angle slider to change the direction of streaking.
Corel Painter uses four channels to store graphic information: Red, Green, Blue, and
Alpha.
You can place information other than color values in these channels. Channel options
allow you to visualize this information in different ways.
• Height as Luminance displays pseudo-height information as luminance. White
areas are represented as peaks, and dark areas become depressions. Images
generated with this option can be used with the Apply Surface Texture effect.
• Gradient Bearing uses the Red channel to display the bearing of the down angle of
a height field.
• Surface Normal uses the Green and Blue channels to represent the X and Y
components of the surface normal (angle perpendicular to the surface at a given
point) of the height field (Green=X, Blue=Y).
These two latter options for viewing a fractal texture are offered for purely aesthetic
reasons. One way to take advantage of them is to create color variations of the texture
with the Adjust Colors feature.
You can also turn a fractal pattern into a paper texture that will be saved to the Paper
library.
To create fractal patterns
1 On the Patterns palette, click the palette menu arrow, and choose Make Fractal
Pattern.
2 In the Make Fractal Pattern dialog box, adjust the fractal options.
Changes you make appear in the Pattern Preview Window.
3 When you are satisfied with your selections, click OK.