Book Image

Godot 4 Game Development Cookbook

By : Jeff Johnson
5 (1)
Book Image

Godot 4 Game Development Cookbook

5 (1)
By: Jeff Johnson

Overview of this book

Want to transition from Godot 3 to 4? Look no further than the Godot 4 Game Development Cookbook. This comprehensive guide covers everything you need to become proficient with the latest GUI, GDscript 2.0, Vulkan 2D/3D rendering, shaders, audio, physics, TileSet/TileMap, importing, sound/music, animation, and multiplayer workflows. With its detailed recipes, the book leaves no stone unturned. The Godot 4 Cookbook begins by exploring the updated graphical user interface and helps you familiarize yourself with the new features of GDscript 2.0. Next, it delves into the efficient rendering of 2D and 3D graphics using the Vulkan renderer. As it guides you in navigating the new Godot 4 platform, the book offers an in-depth understanding of shaders, including the latest enhancements to the shader language. Moreover, it covers a range of other topics, including importing from Blender, working with audio, and demystifying the new Vulkan Renderer and the physics additions for 2D and 3D. The book also shows you how the new changes to TileSet and TileMap make 2D game development easy. Advanced topics such as importing in Godot 4, adding sound and music to games, making changes in the Animation editor, and including workflows for multiplayer in Godot 4 are covered in detail. By the end of this game development book, you’ll have gained a better understanding of Godot 4 and will be equipped with various powerful techniques to enhance your Godot game development efficiency.
Table of Contents (13 chapters)

How to use Global Uniforms

In this recipe, we go into Project Settings and create a Shader Global Uniform that is a red color. We create a PlaneMesh and call the Shader Global Uniform from a shader script to change the plane color to red, then we create a script and change the color to blue using GDScript.

Getting ready

For this recipe, open Godot 4 and open the project from the last recipe, called CreationDialog.

How to do it…

We start by removing the Recipe2.gdshader script from MeshInstance3D and then create the global shader:

  1. Left-click on MeshInstance3D, and in the Inspector in the Material section, click on the Set to default icon to the right of Shader and to the left of Recipe2.gdshader, as seen in Figure 5.3 just below the blue ball.
  2. Click on Output on the bottom panel of the editor to the right of the FileSystem tab.
  3. Click on Project in the main menu located on the top left of the editor.
  4. Select Project Settings in the drop-down list...