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

Discovering Unity PBR-related tooling

Nowadays, many video games aim for renders that are as realistic as possible, and the PBR, or PBS, has become a new standard. It is, therefore, an important technique to master for modern technical artists, so let’s see how to apply it in Unity when using the URP pipeline.

In the following sections, we will have a quick glance at the shader keywords and variants that are required to make our shader lit. Then, we will have a quick look at the important tooling the URP provides us with for PBR, set up our shader keywords, and finally, introduce the four data structures our shader will use.

A quick overview of shader keywords and variants

So, before we actually dive into adding lighting to a URP shader and turning it into a lit PBS shader, we need to have a quick look at the notion of shader keywords and shader variants. We will not go into a fully detailed explanation here because we will have another in-depth run at those concepts...