Book Image

Game Development with Unity for .NET Developers

By : Jiadong Chen
Book Image

Game Development with Unity for .NET Developers

By: Jiadong Chen

Overview of this book

Understand what makes Unity the world’s most widely used real-time 3D development platform and explore its powerful features for creating 3D and 2D games, as well as the Unity game engine and the Microsoft Game Dev, including the Microsoft Azure Cloud and Microsoft Azure PlayFab services, to create games. You will start by getting acquainted with the Unity editor and the basic concepts of Unity script programming with C#. You'll then learn how to use C# code to work with Unity's built-in modules, such as UI, animation, physics, video, and audio, and understand how to develop a game with Unity and C#. As you progress through the chapters, you'll cover advanced topics such as the math involved in computer graphics and how to create a custom render pipeline in Unity with the new Scriptable Render Pipeline, all while optimizing performance in Unity. Along the way, you'll be introduced to Microsoft Game Dev, Azure services, and Azure PlayFab, and using the Unity3D PlayFab SDK to access the PlayFab API. By the end of this Unity book, you'll have become familiar with the Unity engine and be ready to develop your own games while also addressing the performance issues that you could encounter in the development process.
Table of Contents (16 chapters)
1
Part 1: Basic Unity Concepts
4
Part 2: Using C# Scripts to Work with Unity's Built-In Modules
9
Part 3: Advanced Scripting in Unity

Getting started with coordinate systems

Like many files, most model files are binary files. When a game engine, such as Unity, needs to render a model, the data of the model, such as the vertex array of the model and the index of the vertex array, will be extracted and processed through the render pipeline of the game engine.

Note

You can find more information about the render pipeline in computer graphics at https://www.khronos.org/opengl/wiki/Rendering_Pipeline_Overview.

A graphics render pipeline mainly includes two functions: one to convert the 3D coordinates of an object into 2D coordinates in the screen space and the other to color each pixel of the screen. Finally, the 3D model is rendered on the 2D screen.

In the process of the render pipeline, a lot of coordinate system conversion work will be involved, as you can see in Figure 7.1. So, it's an important topic and we will introduce information about coordinate systems in this section:

...