游戏引擎架构详解：Jason Gregory著

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《游戏引擎架构》(Game Engine Architecture)是一本由Jason Gregory编著的专业书籍，由AK Peters/Ltd.出版，隶属于CRC Press的Taylor & Francis Group。这本书籍主要聚焦于游戏开发的核心技术——游戏引擎设计与实现，它适合那些对游戏引擎内部工作原理和技术感兴趣的读者，尤其是对于想要深入了解游戏开发流程和底层技术的开发者和研究人员而言。该书详细探讨了游戏引擎架构的各个方面，包括但不限于：渲染管线、物理模拟、内存管理、资源管理、网络通信、脚本支持、图形API接口、多平台兼容性以及模块化设计等。作者以深入浅出的方式，结合实践案例，讲解了如何构建高效、可扩展的游戏引擎，并提供了如何优化性能、处理复杂场景和创建沉浸式用户体验的策略。书中还强调了版权问题，指出所有在书中引用或复制的内容都是经过合理努力确保其可靠性的，但无法对所有材料的有效性和使用后果承担责任。作者和出版社已尽力追踪所有复制材料的版权所有者，并对未获得许可而使用的版权内容表示歉意，鼓励读者在发现未被认可的版权信息时与他们联系，以便在后续再版时进行修正。《游戏引擎架构》不仅是一本理论教材，也是一份实用指南，它涵盖了从基础概念到高级技术的全方位内容，对于希望在游戏开发领域进一步提升技能的专业人士和爱好者来说，是不可或缺的学习资源。通过阅读本书，读者可以了解到如何构建一个能满足现代游戏需求的坚实引擎框架，从而推动游戏创新和发展。

xiv Foreword

The recent explosion of downloadable and casual games has added even

more complexity to the diverse world of commercial video games. Even so,

big games are still big business. The incredible computing power available

on today’s complicated platforms has made room for increased complexity in

the so ware. Naturally, all this advanced so ware has to be created by some-

one, and that has driven up the size of development teams—not to mention

development costs. As the industry matures, we’re always looking for be er,

more eﬃ cient ways to build our products, and development teams have be-

gun compensating for the increased complexity by taking advantage of things

like reusable so ware and middleware.

With so many diﬀ erent styles of game on such a wide array of platforms,

there cannot be any single ideal so ware solution. However, certain pa erns

have developed, and there is a vast menu of potential solutions out there. The

problem today is choosing the right solution to ﬁ t the needs of the particular

project. Going deeper, a development team must consider all the diﬀ erent as-

pects of a project and how they ﬁ t together. It is rare to ﬁ nd any one so ware

package that perfectly suits every aspect of a new game design.

Those of us who are now veterans of the industry found ourselves pio-

neering unknown territory. Few programmers of our generation have Com-

puter Science degrees (Ma ’s is in Aeronautical Engineering, and Jason’s is

in Systems Design Engineering), but these days many colleges are starting to

programs and degrees in video games. The students and developers of today

need a good place to turn to for solid game-development information. For

pure high-end graphics, there are a lot of sources of very good information

from research to practical jewels of knowledge. However, these sources are

o en not directly applicable to production game environments or suﬀ er from

not having actual production-quality implementations. For the rest of game

development, there are so-called beginner books that so gloss over the details

and act as if they invented everything without giving references that they are

just not useful or o en even accurate. Then there are high-end specialty books

for various niches like physics, collision, AI, etc. But these can be needlessly

obtuse or too high level to be understood by all, or the piecemeal approach just

doesn’t all ﬁ t together. Many are even so directly tied to a particular piece of

technology as to become rapidly dated as the hardware and so ware change.

Then there is the Internet, which is an excellent supplementary tool for

knowledge gathering. However, broken links, widely inaccurate data, and

variable-to-poor quality o en make it not useful at all unless you know ex-

actly what you are a er.

Enter Jason Gregory, himself an industry veteran with experience at

Naughty Dog—one of the most highly regarded video game studios in the

xviii Preface

play programming, including player mechanics, cameras, and AI. However,

by necessity, the scope of these discussions will be limited mainly to the ways

in which gameplay systems interface with the engine.

This book is intended to be used as a course text for a two- or three-course

college-level series in intermediate game programming. Of course, it can also

be used by amateur so ware engineers, hobbyists, self-taught game program-

mers, and existing members of the game industry alike. Junior engineers can

use this text to solidify their understanding of game mathematics, engine ar-

chitecture, and game technology. And some senior engineers who have de-

voted their careers to one particular specialty may beneﬁ t from the bigger

picture presented in these pages, as well.

To get the most out of this book, you should have a working knowledge

of basic object-oriented programming concepts and at least some experience

programming in C++. Although a host of new and exciting languages are be-

ginning to take hold within the game industry, industrial-strength 3D game

engines are still wri en primarily in C or C++, and any serious game pro-

grammer needs to know C++. We’ll review the basic tenets of object-oriented

programming in Chapter 3, and you will no doubt pick up a few new C++

tricks as you read this book, but a solid foundation in the C++ language is best

obtained from [39], [31], and [32]. If your C++ is a bit rusty, I recommend you

refer to these or similar books to refresh your knowledge as you read this text.

If you have no prior C++ experience, you may want to consider reading at least

the ﬁ rst few chapters of [39], or working through a few C++ tutorials online,

before diving into this book.

The best way to learn computer programming of any kind is to actually

write some code. As you read through this book, I strongly encourage you to

select a few topic areas that are of particular interest to you and come up with

some projects for yourself in those areas. For example, if you ﬁ nd character

animation interesting, you could start by installing Ogre3D and exploring its

skinned animation demo. Then you could try to implement some of the anima-

tion blending techniques described in this book, using Ogre. Next you might

decide to implement a simple joypad-controlled animated character that can

run around on a ﬂ at plane. Once you have something relatively simple work-

ing, expand upon it! Then move on to another area of game technology. Rinse

and repeat. It doesn’t particularly ma er what the projects are, as long as

you’re practicing the art of game programming, not just reading about it.

Game technology is a living, breathing thing that can never be entirely

captured within the pages of a book. As such, additional resources, errata,

updates, sample code, and project ideas will be posted from time to time on

this book’s website at h p://gameenginebook.com.

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