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Another thing that you may need to do in order to clean up or change your photograph is to change the overall shape or dimension of certain aspects of your image. Well let's take a look at how we can use the Liquify filter in order to do that. And typically because the changes that we'll be making with the Liquify filter are so strong, we'll want to apply these adjustments to a new layer. So let's duplicate the Background layer by pressing Command+J on the Mac or Ctrl+J on Windows. I'm going to go ahead and just name this new layer, shape. Next, let's navigate to our Filter pulldown menu and here we're going to choose Liquify, this will open up the Liquify Filter.
By default the first tool, the Forward Warp tool will be selected. This tool is really powerful. You also may not see as many options over here on the right, you can change that by clicking on the Advanced mode, you can turn that on or off. Let's go ahead and turn on Advanced mode so that we have access to more options. Well the first few things that I need to do are just make some silly adjustments so that we can understand how this tool works. Well we obviously have Brush Size that's easy to understand, we can click and drag this to increase our brush size, and I'll go ahead and make this brush size perhaps a little bit smaller there so I can actually see it.
Let me bring this down perhaps to something right around 100 or so. And then in doing that I need to choose Brush Density and Pressure, let's crank the Brush Pressure up, and then here I'm going to make an adjustment. By doing that you can see that I can click and drag and really change the shape of the pixels, it's almost like I'm just pushing that around as if it were wet paint. If we decrease our Brush Pressure, and if we bring this way down, and if I make similar brush strokes you can see that the adjustments now are much more subtle.
Hardly anything is happening at all. And so in this way we can start to modify things in more subtle ways. Well, all of these adjustments are just silly; they're not going to work. How do we reset Liquify? Well if you press Option on the Mac or Alt on Windows the Cancel button turns into Reset, let's click that in order to reset this back to the default settings. Next, let's reopen the Advanced mode and then here let's decrease our Brush Size a little bit. Also let's bring our Brush Pressure way down.
Now with a lower brush pressure what we can do is we can then hover over the image and start to nudge it. And let's say that with this picture the particular subject said, hey, can you just nudge this in a little bit and so we're going to try to do that, and we're going to do that by simply clicking and painting along those edges. Next, if you want to get into a specific area, you can change your Brush Size by pressing the Bracket Keys, Right Bracket is bigger, Left Bracket is smaller, and here I'm going to go ahead and just click and nudge this down. As you have a smaller brush size you can get into these smaller areas in order to make more specific adjustments on those areas.
If you have a bigger brush size well then you can work on a larger area. So you want to be careful that as you're working on these areas that you don't make these adjustments in ways that are too dramatic, here we're just going to make some pretty subtle adjustments and we're looking to try to keep this somewhat realistic not having these strange dents say as we work through the photograph. Next, you need to evaluate your progress. In order to do that you can click on this option for Show Backdrop and then turn this up say to 100, and then here we can look at our before and after and you can see how we've changed the photograph.
In this case we've made some subtle little adjustments using this tool. Next we'll go ahead and click OK in order to apply those adjustments, and I'll zoom in a little bit more on the image so we can see the details. Because this is on a separate layer we can then turn on and off the before and after of that view. And by doing that, by having this on a separate layer well it gives us just this extra flexibility and you know there are so many different ways that you're going to use this Liquify tool. Sometimes you'll use this tool in ways that are really dramatic, yet in most situations you'll use this tool just to nudge things a little bit in order to change the overall shape and dimension of your photographs.
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