Tutorial: How to create your own Image Hose nozzles

Stones Header Image
These stones were painted with a custom Image Hose nozzle. Learn how to create your own custom nozzles in this article.

The Image Hose is probably one of the most misunderstood tools in Corel Painter, and yet it’s pretty easy to use and even customize with your images. If you’ve ever tried the Image Hose (it’s one of the brush “variants,” right between Gouache and Impasto), you may have been reminded of a kid’s drawing program called KidPix. It worked much the same way, spraying a bunch of images across the page. Here’s a quick sample of the images that ship with Painter.

Corel Painter Default Nozzles
You probably created a picture like this with the Image Hose and decided it was just a toy. I know I did!

You may have given the Image Hose a try once and scratched your head, wondering why in the world you would need to spray a series of paragliders across your canvas. For the Image Hose to be useful, you need to create your own custom nozzles for it. It comes in handy when you’ve got a lot of grass or trees to paint, or a rock wall, let’s say. And it’s relatively easy to do. Just create a document (a file in Painter’s native RIFF format) with two or more layers, group the layers, and tell Painter to make a nozzle from the group. That’s it! Today I’m going to show you how I created the image of the stone above, using my own custom stones nozzle. You won’t believe how easy it is. 

First, I’ll go over the quick method I used to create the stones. These stones took me about 5 minutes each to complete. To get started, you’ll need a photo of a rocky surface. You can take some pictures of boulders with your camera or download them from a stock photo site. With the lasso selection tool, draw a roughly roundish shape, and copy/paste it into a new document.

Adobe Photoshop Copy Rock
Copy a roundish area from a rock texture. No need to be careful here. Any shape will do.

Now go to Filter>Liquify, and with a big brush, push the sides inward. This Adobe Photoshop filter will crowd the edging details, which helps with the 3-dimensional illusion we’re want to achieve. Once you’re done, the rock should be looking less flat (see left image below). Use Adobe Photoshop’s Filter>Artistic>Sponge to get the results you see on the right below.

Adobe Photoshop liquify filter and sponge filter
Results of the liquify filter (left) and sponge filter (right)

The settings for the sponge filter are Brush Size 0, Definition 24, Smoothness 1. You could use one of the other filters, such as fresco or dry brush. Next, go Filter>Render>Lighting Effects. Pick a color for your light, or go with white. The color will change the appearance of your stone dramatically. See the screenshot below for the placement of the light source. You want a light on one side, dark on the other. 

Adobe Photoshop lighting effects filter
Note the light blue color I used for the light source. Make sure the light isn’t too bright, or the shadow too dark.

Next, you can apply a drop shadow, using the drop shadow layer style, and it will look like this:

After the lighting effect is applied in Adobe Photoshop
Results of applying lighting effects and a drop shadow.

The problem with creating drop shadows in Photoshop is that Corel Painter can’t read them. So hold off on drop shadows for now. You’ll make them in Corel Painter later. At this point, you can also use a little dodge and burn to help add to the illusion of depth, but that’s optional. I used the dodge tool to make some of the stones look shiny. 

You can create many stones using the same rock texture image, just by varying the lighting effects and the shapes you copy and paste. Create each stone as its file. Once you have six or so (the more, the merrier), use the move tool to drag each of them into a single document. This technique will create a separate layer for each stone image. Save this document as a PSD file, and close Adobe Photoshop. Open this document in Corel Painter. (If you used layer styles for drop shadows, Painter will tell you it’s removing them. Just click OK.) Now you should have a Painter image open with all of your layers, one per stone. To add drop shadows in Corel Painter, you can go to Effects>Objects>Create Drop Shadow. The dialogue box is not as easy to use as you find in Adobe Photoshop, but it accomplishes the same thing. Once you’ve created the drop shadow, Painter creates a layer group, which you need to collapse. With the group selected, go Layer>Collapse. It will rename the layer to something like “Layer n and shadow.” After creating drop shadows for each layer, you’re ready to make the group. Click each layer, holding the shift key down to select them all. Go Command (Mac)/Control (Windows) + G to group the layers (or go Layers>Group). To create the nozzle file, locate the Nozzle Selector (see below) and click on the tiny triangle in the lower right corner of the icon to open it. Then, click on the triangle in the upper right to get to the menu shown here.

Corel Painter finding the nozzle selector
Corel Painter finding the nozzle selector

Once you click on “Make nozzle from the group,” Painter creates a new file in RIFF format. Give it a name with “nozzle” in the title, like Stone nozzle.rif. It should look like this:

The file nozzle.riff
The nozzle file shows the images arranged on a black background.

Congratulations! You have created your very own nozzle file. To use it, select the Image Hose brush. To load the nozzle, go back to the tiny Nozzle Selector icon, and this time choose “Load Nozzle…”. Browse to the file you just created (Stone nozzle.rif). Now you can paint with your new nozzle. 

This tutorial was rather long since it’s two tutorials in one (create stones in Adobe Photoshop, and then use them to create a nozzle in Corel Painter), but I hope you found it clear and easy to follow. If you have any questions or something that doesn’t work quite right, please leave a comment, and I’ll try to respond quickly. Thanks!



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