Book Image

Become a Unity Shaders Guru

By : Mina Pêcheux
5 (1)
Book Image

Become a Unity Shaders Guru

5 (1)
By: Mina Pêcheux

Overview of this book

Do you really know all the ins-and-outs of Unity shaders? It’s time to step up your Unity game and dive into the new URP render pipeline, the Shader Graph tool, and advanced shading techniques to bring out the beauty of your 2D/3D game projects! Become a Unity Shaders Guru is here to help you transition from the built-in render pipeline to the SRP pipelines and learn the latest shading tools. With it, you’ll dive deeper into Unity shaders by understanding the essential concepts through practical examples. First, you’ll discover how to create a simple shading model in the Unity built-in render pipeline, and then in the Unity URP render pipeline and Shader Graph while learning about the practical applications of both. You’ll explore common game shader techniques, ranging from interior mapping to adding neon outlines on a sprite or simulating the wobble of a fish. You’ll also learn about alternative rendering techniques, like Ray Marching. By the end of this book, you’ll have learned to create a wide variety of 2D and 3D shaders with Unity’s URP pipeline (both in HLSL code and with the Shader Graph tool), and be well-versed with some optimization tricks to make your games friendly for low-tier devices as well.
Table of Contents (23 chapters)
Part 1: Creating Shaders in Unity
Part 2: Stepping Up to URP and the Shader Graph
Part 3: Advanced Game Shaders
Part 4: Optimizing Your Unity Shaders
Part 5: The Toolbox

Having a peek at shader includes and tags

After this quick overview of the new shader script structure for URP, we now know that there has been an important change with the includes.

Thus, to better understand why and how it has changed, let’s briefly discuss how to import the new core shader tools for URP/HLSL shader scripts and how to update some of our most common built-in variables and function calls provided via macros. We will then talk about the two important shader tags you need to be aware of when writing shaders for URP.

Including the URP core module

As we discussed in the Structuring a Unity HLSL shader section, the new HLSL-based shader scripts cannot use the classic .cginc shader includes, as their predecessors did. Because they are based on the HLSL language, they have to include libraries written in that language, and more precisely in our case, modules from the new URP shader library.

The most common is the following:

#include "Packages/com...