It's great to write your own shaders and effects and fine-tune your project so that it looks just the way that you want it to, and this is what we will be spending the majority of the book looking into. However, it's also good to point out that Unity already comes with some prebuilt ways to get some of the more common effects that users like to have; users can implement these effects by using the Post Processing Stack.

For those who just want to get something up and running, the Post Processing Stack can be an excellent way for you to tweak the appearance of your game without having to write any additional code. Using the Post Processing Stack can also be useful in showing you what shaders can do and how they can improve your game projects as, behind the scenes, the Post Processing Stack provides several shaders as well as scripts that are applied to the screen via the aptly named screen shader.

In this chapter, we will cover the following...