You're reading from Become a Unity Shaders Guru

Product type Book

Published in Jul 2023

Publisher Packt

ISBN-13 9781837636747

Pages 492 pages

Edition 1st Edition

Languages

Concepts

Game Optimization

Author (1):

Mina Pêcheux

Table of Contents (23) Chapters

Preface

1. Part 1: Creating Shaders in Unity

2. Chapter 1: Re-Coding a Basic Blinn-Phong Shader with Unity/CG

3. Part 2: Stepping Up to URP and the Shader Graph

4. Chapter 2: The Three Unity Render Pipelines

5. Chapter 3: Writing Your First URP Shader

6. Chapter 4: Transforming Your Shader into a Lit PBS Shader

7. Chapter 5: Discovering the Shader Graph with a Toon Shader

8. Part 3: Advanced Game Shaders

9. Chapter 6: Simulating Geometry Efficiently

10. Chapter 7: Exploring the Unity Compute Shaders and Procedural Drawing

11. Chapter 8: The Power of Ray Marching

12. Part 4: Optimizing Your Unity Shaders

13. Chapter 9: Shader Compilation, Branching, and Variants

14. Chapter 10: Optimizing Your Code, or Making Your Own Pipeline?

15. Part 5: The Toolbox

16. Chapter 11: A Little Suite of 2D Shaders

17. Chapter 12: Vertex Displacement Shaders

18. Chapter 13: Wireframes and Geometry Shaders

19. Chapter 14: Screen Effect Shaders

20. Index

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21. Other Books You May Enjoy

Appendix: Some Quick Refreshers on Shaders in Unity

Having fun with overlay textures, dissolves, and holograms

For this final series of 2D shaders, we will examine useful yet easy-to-implement shader effects that can be directly applied in video games to show a specific state of a character or have it appear in an interesting way.

Namely, we will see how to overlay a texture on top of our sprite with various mixing operations, create a parametrized dissolve effect, and make our image look like a shiny hologram.

Showing an overlay texture

To start this series of advanced shaders, let’s do an easy one: a basic texture overlay with controllable parameters. This is typically something that is very quick to do with shaders in a game engine and pretty much impossible without them.

In short, the idea is simply to use some mix factors to blend the colors of our original sprite with the colors of a user-defined overlay texture in a dynamic and easy-to-tweak way. You might remember that we already talked about that sort of...