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)

Exploring Uniform Arrays in the Godot 4 shader language

In this recipe, we create a shader on a MeshInstance3D that uses the new Uniform Array, which is a Vector3 array and holds three colors—red, green, and blue—in the array.

Getting ready

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

How to do it…

Let’s use the new Uniform Arrays and structs in the shader language with the plane we created in the last recipe:

  1. Left-click on MeshInstance3D in the Scene tab.
  2. Click on <empty> to the right of Material in the Inspector and select New ShaderMaterial from the drop-down list.
  3. Click on <empty> to the right of Shader in the Inspector and select New Shader from the drop-down list, as shown in Figure 5.1.
  4. To the right of Path:, rename CreationDialog.gdshader to Recipe2.gdshader and click the Create button.
  5. Left-click on Recipe2.gdshader, which is to the right of Shader...