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

Why subscribe?

21. Other Books You May Enjoy

Appendix: Some Quick Refreshers on Shaders in Unity

Coding our lit PBS shader logic

Alright, we now have a nice structure for our PBS lit shader with the proper keywords and include statements. We also know what our data structures look like, so the next step is to discuss how to compute all these fields and fill in the logic to use all of this.

In the upcoming sections, we will prepare the various properties that our shader will offer to users to better control the shading result, then see how to initialize our SurfaceData and InputData structures, and finally, design the vertex and fragment shader functions.

Preparing our shader properties

We saw in the Discovering Unity PBR-related tooling section that we wanted our shader to support the most frequent PBS options – albedo, metallic or specular reflections, occlusion, normals, and so on.

Of course, we want our users to be able to tweak all of these parameters, so we want to expose various properties in the inspector panel for them. Let’s have a look at each...