The one downside to using regular filters is that typically you copy a layer, you apply the filter, and then you can't change any of the filter settings after the fact. Well, in order to have even more flexibility, say to change the filter settings or to change the blending mode, just all of these different options kind of built into one, you can use something that's called Smart Filters. Because these are so really effective and helpful, I thought it would be helpful to step back just for a few seconds and deconstruct how these work. Well, what you typically need to do is first convert a layer for Smart Filters or convert a layer to a Smart Object.
You can do that either by going to your Filter menu and selecting Convert for Smart Filters, or you can right-click or Ctrl+Click right on the layer and then make that selection as well to convert that to a Smart Object. Then what the Smart Object is it allows you to apply a filter but it has a built-in memory. In other words, you can always undo what you've done, or another way to say it, it's nondestructive. Here you can see that when you apply a Smart Filter, you have a handful of different icons. One, on the layer thumbnail there is a new icon.
You also notice that you have these icons over here which allow you to expand and collapse the view of the Smart Filter. It has a built-in mask. It also has the filter that you've applied. If you double-click this, you can reopen the Filter dialog to reapply that particular setting. You can also double-click these two sliders, which is an icon for Blending Options. Here you can go and choose different blending modes and also Opacity for those blending modes. All right. Well now that we have been briefly introduce to Smart Filters, let's go ahead and take a look at how these work, and we'll do that in the next movie.
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