Book Image

Hands-On Unity 2020 Game Development

By : Nicolas Alejandro Borromeo
Book Image

Hands-On Unity 2020 Game Development

By: Nicolas Alejandro Borromeo

Overview of this book

Over the years, the Unity game engine has extended its scope from just being about creating video games to building AR/VR experiences, complex simulations, real-time realistic rendering, films, and serious games for training and education. Its features for implementing gameplay, graphics, and customization using C# programming make Unity a comprehensive platform for developing professional-level, rich experiences. With this book, you'll be able to build impressive Unity projects in a step-by-step manner and apply your knowledge of Unity concepts to create a real-world game. Complete with hands-on tutorials and projects, this easy-to-follow guide will show you how to develop your first complete game using a variety of Unity tools. As you make progress, you'll learn how to make the most of the Unity Editor and create scripts using the C# programming language. This Unity game development book will then take you through integrating graphics, sound, and animations and manipulating physics to create impressive mechanics for your games. You'll also learn how to code a simple AI agent to challenge the user and use profiling tools to ensure that the code runs in a performant way. Finally, you'll get to grips with Unity's AR Foundation for creating AR experiences for 3D apps and games. By the end of this book, you'll have developed a complete game and will have built a solid foundation using Unity's tooling ecosystem to develop game projects of any scale.
Table of Contents (24 chapters)
Chapter 20: Building the Project

Introducing Shaders

We created Materials in the previous chapter, but we never discussed how they internally work and why the Shader property is super important. In this first section of the chapter, we will be exploring the concept of a Shader as a way to program the video card to achieve custom visual effects.

In this section, we will cover the following concepts related to Shaders:

  • Shader Pipeline
  • Render Pipeline and URP
  • URP Built-in Shaders

Let's start by discussing how a Shader modifies the Shader Pipeline to achieve effects.

Shader Pipeline

Whenever a video card renders a 3D model, it needs input data to process, such as a Mesh, Textures, the transform of the object (position, rotation, and scale), and lights that affect that object. With that data, the video card must output the pixels of the object into the Back-Buffer, the image where the video card will be drawing our objects. That image will be shown when Unity finishes rendering all...