User Guide

Table Of Contents
192 Corel Painter User Guide
How the Image Hose Works
The Image Hose is a brush. To use it, you must first load it with images. The images
are kept in special nozzle files. On a garden hose, you attach a nozzle to control the
flow of water; in Corel Painter, you attach a nozzle to the Image Hose to control its
medium — images.
A nozzle file can contain any number of images. Usually, the images are similar and
form a logical series — that is, the images progress along some order. For example, the
images might increase in size or advance in angle. It is not necessary for images to
progress in a logical series, but the Image Hose is more effective when they do.
“Indexing” refers to the method used to select particular images from the many images
in a nozzle file. Which method (indexing rule) to use for selecting nozzle images is
controlled in the Brush Creator by modifying the Image Hose settings on the Stroke
Designer tab. You can hose images sequentially, at random, or based on pressure,
stroke direction, or several other factors.
The images are indexed so that Corel Painter can locate and paint specific images on
request. As you paint with the Image Hose, you can request specific images from the
nozzle index by varying your input value. Increasing an input value takes images from
later in the series. For example, you can set up the nozzle so that by pressing harder
with a pressure-sensitive stylus, you paint with larger images.
You control the images themselves in the nozzle file. If you want more variety in the
images, create more images in the nozzle file. For more information about designing
and creating nozzle files, see “Creating, Loading, and Saving Nozzles for the Image
Hose” in the Help.
As your Image Hose requirements become more exacting, you can create complex
nozzles that involve two progressions — for example, images getting larger and
changing angle. In this case, you’ll use one input factor to determine image size and
use another factor to determine image angle. This creates a 2-Rank nozzle.