In this post I will show you how to use mask roundness in After Effects. Let’s dive right!
So we are in After Effects and for this example I’ll select the Rounded Rectangle Tool from the top menu bar.
What if I want to adjust the roundness of my corners? How would I do it?
It is super easy to do in shape layers. Go to Rectangle Path and you should see Roundness option which will enable you to easily increase or decrease the roundness of the rectangle with the slider.
However, that’s not really the case when you work with masks. Let me show you what I’m talking about here.
I’m going to delete the Shape Layer 1.
Next, I’m going to select the BG layer and draw the exact same shape on top of my layer.
As you can see, it created a rounded mask. However, there is a small problem. If I go into my mask options, I can’t see roundness anywhere.
So how do we adjust roundness? Let me show you.
First, let’s select and delete Mask 1.
You should only see the BG layer at this point.
When you click to draw another rectangle, you have to make sure that you don’t let go of your mouse button.
So I’m going to click and draw on my canvas like so:
If you want to make your corner sharp, you just have to press left arrow key while you’re in active mode. Remember: don’t let go of the mouse button. Otherwise, it won’t work.
If you want to make it rounded all the way, press the right arrow key.
If you want to set your shape to a specific size, you can press the right arrow key and it will set it at that size like so:
Now what if you want to increase roundness? Easy! Press the up arrow keys to increase the roundness.
Press the down arrow key to decrease it
The same thing applies for your middle scrolling buttons on your mouse. Scrolling up will increase the roundness and scrolling down will decrease it.
By the way, if you want to move your mask around in your composition, just press down the space bar on your keyboard and it will enable you to freely move it around.
Where you let go of the space bar, that’s where your mask will be dropped.
Now this example was for rounded rectangles but you can do the same thing with the star and the polygon tool. Let me show you. Select the star tool.
Click and draw your star in active mode.
If you want to make your star rounded, just press the right arrow key like we did in the previous example.
If you want to increase the amount of points on your star, just press the up arrow key.
If you want to decrease the amount of points on your star, then press the down arrow key.
You can also use your mouse scroll button instead of the arrows. The same thing applies for the polygon tool.
I hope you found this quick tip useful. Make sure to subscribe to our email list for latest After Effects tips.
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