Anti-Aliasing turned off in Photoshop?
I was trying to make my own custom shapes in Photoshop, so I first started out with an ellipse. I saw that all the shapes had pixelated edges. I went to turn Anti-Aliasing on in the marquee tool but it was grayed out. I couldn't select it.
I didn't touch Photoshop for a while, but now after 1 or 2 months this happened. Can someone please tell me how to turn it back on again? I'm on a MacBook Pro 10.8.4 and I'm using Photoshop CS6.
Anti-Aliasing in the marquee tool is not going to help you, unless you are using the elliptical marquee tool to "Fill" an elliptical selection (the rectangular marquee won't give you the option to anti-alis).
The Ellipse Tool draws the shape in a vector format. It sounds like your document resolution is low and/or you are zoomed in on your canvas. Use Command + Option + I to verify that your resolution is adequate.