How do i round the corners of a layer mask?

Contributor ,
Sep 22, 2017 Sep 22, 2017

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Im creating a slideshow in which the images fold out using a combination of masks. (Shown Below)

Screen Shot 2017-09-22 at 11.19.12.png

I have managed to create the effect with no problem however i am struggling to create the rounded corner effect.

Is there any way i can do this with the mask?

Thanks!

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correct answers 1 Correct answer

Adobe Community Professional , Sep 22, 2017 Sep 22, 2017
Mask expansion will round the corners of a mask. If you expand 50 pixels you get a 50 pixel radius on the corners of your mask. To transform your mask you can select all points on the mask, press Ctrl/Cmnd + t, then hold down the Ctrl/Cmnd key to resize around the geometric center of the mask. Reduce the mask size by something like 50 pixels and then add 50 pixels of mask expansion and you have a 50 pixel radius on the corners. EZ as pie.Just posted this on another thread ... This mask radius is...

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Adobe Community Professional ,
Sep 22, 2017 Sep 22, 2017

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Only manually by copy & pasting the mask path from a converted shape layer or directly from Illustrator. Generally, though, it seems simple enough to just pre-compose your images ands use a parametric rectangle shape layer with rounded corners as a matte/ stencil. No point in working your fingers off when things can be solved that easily.

Mylenium

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Guide ,
Sep 22, 2017 Sep 22, 2017

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There is no "Roundness" value for Masks. The only way to create rounded corners for them is to do it manually with the Convert Vertex Tool or, start again and draw them with the Rounded Rectangle Mask Tool.

Screenshot 2017-09-22 12.20.16.png

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Adobe Community Professional ,
Sep 22, 2017 Sep 22, 2017

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Mask expansion will round the corners of a mask. If you expand 50 pixels you get a 50 pixel radius on the corners of your mask.

To transform your mask you can select all points on the mask, press Ctrl/Cmnd + t, then hold down the Ctrl/Cmnd key to resize around the geometric center of the mask. Reduce the mask size by something like 50 pixels and then add 50 pixels of mask expansion and you have a 50 pixel radius on the corners. EZ as pie.

Screen Shot 2017-09-22 at 9.31.11 AM.png

Just posted this on another thread ... This mask radius is 78 pixels....

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Guide ,
Sep 22, 2017 Sep 22, 2017

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I am slapping my forehead! Thanks Rick 🙂

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Contributor ,
Sep 28, 2021 Sep 28, 2021

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Amazing, thanks Rick!

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Community Beginner ,
Apr 04, 2020 Apr 04, 2020

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Doh! This seems so obvious to me now. Thanks Rick_Gerard! 

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