Static smooth 

pub static smooth: SmoothInternalType

Draws all geometry with smooth (anti-aliased) edges. smooth() will also improve image quality of resized images. Note that smooth() is active by default in 2D mode; noSmooth() can be used to disable smoothing of geometry, images, and fonts. In 3D mode, noSmooth() is enabled by default, so it is necessary to call smooth() if you would like smooth (antialiased) edges on your geometry.

Examples

background(0);
noStroke();
smooth();
ellipse(30, 48, 36, 36);
noSmooth();
ellipse(70, 48, 36, 36);