Examples

For the examples in this chapter, I will cover two types of IMGUI usages: one for an in-game debug menu and another for an Inspector UI. All the examples covered up to this point have all been in-game debug menu UI.

Using IMGUI to show framerate in-game

Let’s create a very simple script that will show the frame rate of our game in the scene. It will change color if the framerate drops below a certain value.

To display the framerate in your game, complete the following steps:

1. Create a new scene called Chapter19-Examples.unity.
2. Within the new scene, create a new GameObject called DebugMenu.
3. Create a new script called DebugFrameRate.cs.
4. Attach the DebugFrameRate.cs script to your DebugMenu GameObject as a component.
5. Open the new script and add the following variable declarations:

   int fps;
   [SerializeField] int fpsThreshold;

   The fps variable is used to get an estimate of our game’s frame rate, while the fpsThreshold variable is assigned...