The default value of 10 for both the Horizontal and Vertical Scale options is a good place to start, but I'm going to increase mine to 15 for a bit more of an impact. Unfortunately, there's no preview available so the Displace filter usually involves some trial and error until you get things right. In other words, they determine how far the pixels in the image will shift horizontally and vertically. The Horizontal Scale and Vertical Scale options determine how much impact the displacement map will have on the image. The first dialog box asks us to set some options, with the two most important options being at the top. ![]() The Displace filter is actually made up of two separate dialog boxes.
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