Using PostProcessing
Post Processing is a Unity feature that allows us to apply several effects (a stack of effects) one on top of the other, which will alter the final look of an image. Each one will affect the finished frame, changing the colors in it based on different criteria. In the following screenshots, you can see a scene before and after applying image effects. You will notice a dramatic difference. However, the scene hasn't changed in terms of its objects, including lights, particles, or meshes. The effects that have been applied are based on pixel analysis. Have a look at both scenes here:
Figure 9.1 – A scene without image effects (left) and the same scene with effects (right)
Something to take into account is that the previous postprocessing solution, Post Processing Stack version 2 (PPv2), won't work on the Universal Render Pipeline (URP); it has its own postprocessing implementation, which is the one we will cover in this chapter...
