In this post, I will explain a little about how Cache As Bitmap can impact Anti Aliasing of your content.
Let’s start with a definition. To put it very simply, I will say that anti aliasing is what gives smooth look to your content. Anti Aliasing is a way to make content look smoother by drawing certain pixels to avoid jaggedness.
For iOS applications, there are two render modes – cpu and gpu. Let us look at what all can happen with this seemingly harmless change. For all further purpose please assume that we have set the render mode as gpu within application descriptor.
Before I start, look at the two ellipses in the diagram. If you stare hard enough you will agree with me that the left image loses out when compared to the one on right in terms of quality. The right one looks like a smoother version of the left one. If you had difficulty defining anti aliasing then this image should help clear the definition. The right one is anti aliased better or is smoother.