Rounded Rectangle ..Corner Radius???

[fibr3optix]

How do you control the corner radius of a rounded rectangle box?

[Rick Gerard]

Look in the timeline under the shape layer contents. It's called roundness and it's in pixels.

[fibr3optix]

Sorry should have been more clear... in a mask.

[Rick Gerard]

No adjustable rounded corners are available in a mask, however, if you make your mask smaller than you want then you can use the expand mask value to create a radius.

[Todd_Kopriva · Accepted solution]

You can adjust the corner radius of a rounded rectangle mask as you're drawing it, but not after you have drawn it.

See this.

[BriBags]

Genius answer - thanks!

[jjjnyt]

I'm not getting the "Roundedness" option on my mask (screen-shot attached)

Mac

After Effects CC up-to-date

[Rick Gerard]

Masks are vector paths not parametric shapes so there is no corner radius you can adjust. You cal select all mask points and then press Ctrl/Cmnd + t to bring up Mask Transform, hold down the Ctrl/Cmnd key or Shift + Ctrl/Cmnd and resize the mask around it's geometric center and then use mask expansion to generate symmetrical round corners. The Mask path will still be square but expanding the mask with Mask Expansion will give you a radius on the corners. The amount of expansion is equal to the radius. In this case I have created a mask with a 78 pixel corner radius.

Another option would be to use a shape layer and the rectangle tool, adjust the size of the parametric shape using the tools shown in my first reply to this thread, then use the Shape layer as a Track Matte to create a mask or right click on the Rectangle Path and select convert to Bezier, set a keyframe to make sure you have the path selected, then copy. On the layer where you want the mask select the mask tool (g), click anywhere and paste.

[vg57958814]

Hey,

The round rectangle roundness option doesn't seem to be available in CC 2019. I'm looking to create a simple rounded rectangle.
EDIT: Ok so you need to press the little play button and select the Add Rounded Corners from the drop down.

!

[Roei Tzoref]

You don’t have to add it If you created a parametric shape to begin with. When you create a shape, make sure the “bezier path” option is not selected in the tools menu and you will have a roundness parameter in the rectangle shape path parameters.

[Deanna5F9F]

wow

[JollyPiedPiper]

If making a mask, roll the mouse wheel forward or backwards (depending on the size you need) before letting go of the right button that you are pushing down to drag it out. Congratulations, you have become as coordinated as an octopus. Your middle finger is now useful for two things instead of one.

[Astrocookie]

Brilliant reply, answered the question with no pretentious bs and got me laughing on an adobe help forum somehow.

have a nice one

[jonathan ashley]

Perfect answer.  Thank you!