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Before we get started creating our amazing sculptures and fantastic illustrations, such as this masterwork, I would like to take a few minutes to talk about some of the unique technology behind ZBrush's paint strokes. ZBrush uses Pixols to create its unique type of digital paint. Pixols are very similar to Pixels in that Pixols are little dots on the screen and thousands of these little dots are what make up a digital image.
Now, the difference between Pixols and Pixels is that Pixols store a little bit of extra information. Along with the information about color and where they are in terms of the height and width of the digital image, Pixols also store information about where they are in terms of depth. So that means where they are in 3D space. All of the strokes in this image are made up of Pixols that are in different locations in ZDepth and I will demonstrate this by painting a couple of quick strokes on the image.
So I'm just going to paint right here on the palm tree and on top of the robot. You don't need to worry at this point about how I'm painting these strokes, we will get into that in more detail in a later movie. I just want to give you sort of a demonstration on how the Pixols work when you paint them on the screen. So now that I have painted this stroke, I can actually move it in 3D space. So I'm putting it in front of the palm trees and now it's behind the palm trees. I can reposition it and I can even rotate it and you can see that it is followed loosely the contour of the palm tree and the island and the robots.
So this is basically how Pixols work. You will use them most often when you are creating digital illustrations in Zbrush and then occasionally when you are making digital sculptures.
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