From the course: Creating Cinemagraphs with Photoshop After Effects Flixel and Cliplets

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Creating and refining masks in After Effects: Part one

Creating and refining masks in After Effects: Part one

From the course: Creating Cinemagraphs with Photoshop After Effects Flixel and Cliplets

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Creating and refining masks in After Effects: Part one

- Now that we've got the looped footage combined with the still image it's time to make a mask. Remember, as you were designing using other tools or thinking about your cinemagraph, ultimately, some of the motion was meant to be static. What we're going to do is slowly reveal the other information. Let's start with this overlook here and I'm going to knock out some of the green here in the left. Now, to do this I'm gonna take the pen tool. The pen tool can be used to add points. For example, I can click to define a mask. And make a basic selection. You'll note here that what we're doing is putting back in a freeze frame. Now, in this case, I actually want to reverse the mask. So, if I pres M for the mask properties I could tell this area to not add but rather subtract. And this makes it easier to understand. You'll see that there's a freeze frame and this area has been knocked out. The key is to flip the mask to subtract not add. Now, if we drag through it works pretty well except you…

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