Post-processing can really bring your game to the next level and is often one of the big differences between an Indie game and a AAA game, but it can take a lot of tweaking and fine tuning to get the most out of it.
To get started install the Post Processing Package from the Package Manager.
Then add the Post-process Layer component to the Main Camera, add a new Layer named “Post Process” and assign the Layer in the component to it.
Next you need to create a Post-process Volume, set Is Global to enabled, create a new Profile, and change the Layer to Post Process.
Make sure to change the Color Space from Gamma to Linear if you want to get the most out of effects like Bloom and Color Grading.
To begin adding effects I am going to put them on the Profile that was just created that way I can use those as the default settings in each scene.
The first thing I added was the Bloom effect so that the bright objects in the scene could have a nice glow around them.
Next I added the Color Grading effect, this effect is probably one of the most powerful with it you can change so much of how your game looks.
Then I added the Vignette effect to bring in the player’s focus since the enemies and power ups don’t spawn on the edge of the screen.
Finally, I added the Grain effect because I thought it added a subtle texture to the image.