This tutorial will show you how to create a vector shape with smooth round corners. These shapes can then be taken into photoshop and used to smooth corners on an image or graphic – this would be alot smoother then any other options that photoshop give.
Firstly, if you just want a round cornered square, simply select the ‘Rounded Rectangle Tool’ and you can either click once on the canvas and manually enter your corner radius and shape size, or alternatively click and drag to create your shape and with the mouse button held down you can click the up and down arrows on the keyboard to increase the size of your curve (corner radius).
If however you require a more complex shape like a star or a hexgon to be rounded you will need to add the ‘Round Corners’ effect. Firstly, select your shape by clicking and holding the shape tool to reveal the following:
If you want a star or polygon to have more sides simply click on the relevant tool then click and hold in the canvas and hit the up and down arrows again to do so. With the star tool you can even increase the length of the points by holding down the Ctrl key and dragging the mouse.
Once you are happy with your shape, you can add the round corners by going to Effect > Stylize > Round Corners, then enter the size of the radius you want (click preview to get an idea of how it looks) and hit OK.