从零开始的Ogre3D 1.7入门指南

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"Ogre3D 1.7 Beginner's Guide" Ogre3D是一个开源的3D图形渲染引擎，广泛用于实时3D应用程序的开发，包括游戏、模拟器、可视化工具等。这本书《Ogre3D 1.7 Beginner's Guide》由Felix Kerger撰写，旨在引导初学者从零开始学习如何使用Ogre3D创建实时3D应用。在本书中，读者将学习到以下关键知识点： 1. **Ogre3D基本概念**：了解3D渲染的基本原理，如顶点、多边形、纹理、光照和摄像机视角等。掌握Ogre3D的核心组件，如场景管理、渲染循环和资源管理。 2. **安装与配置**：学习如何在不同的操作系统上（例如Windows、Linux或Mac OS）下载、安装和配置Ogre3D库，以及设置开发环境，如集成开发环境(IDE)和编译器。 3. **基础编程**：通过C++语言入门，了解如何创建基本的Ogre3D程序，设置窗口，加载资源，以及初始化渲染上下文。 4. **场景管理**：理解Ogre3D中的Scene Manager，如何组织和管理3D对象，包括添加、删除和移动场景节点，以及创建复杂的场景结构。 5. **3D模型和纹理**：学习如何导入和处理外部3D模型（如`.obj`、`.3ds`格式），以及如何应用纹理和材质来增强3D对象的视觉效果。 6. **光照和阴影**：探索Ogre3D的光照系统，包括点光源、方向光和聚光灯，以及阴影技术如阴影贴图和PCF（Percentage-Closer Filtering）。 7. **动画系统**：了解如何实现角色动画，包括骨骼蒙皮动画和关键帧动画，以及如何控制和同步这些动画。 8. **摄像机控制**：学习如何设置和控制摄像机视图，包括平移、旋转和缩放，以及创建复杂的视图效果。 9. **特效与粒子系统**：接触Ogre3D的粒子系统，创建火焰、烟雾、爆炸等特效，并了解如何添加高级视觉效果，如雾、镜面反射和环境映射。 10. **脚本语言和插件**：学习如何使用Ogre3D的内置脚本语言（如AngelScript或Lua）来简化场景设置，以及如何利用插件系统扩展引擎功能。 11. **优化与性能**：探讨提高3D应用性能的方法，包括批处理、LOD（Level of Detail）、资源缓存和多线程渲染。 12. **项目实践**：通过实际项目案例，如创建简单的3D游戏或可视化应用，将所学知识应用于实践中，提升技能。《Ogre3D 1.7 Beginner's Guide》是一本全面的指南，适合想要进入3D游戏开发或相关领域的初学者，帮助他们快速掌握Ogre3D引擎并构建自己的实时3D应用。

Preface

Creang 3D scenes and worlds is an interesng and challenging problem, but the results

are hugely rewarding and the process to get there can be a lot of fun. This book is going to

show you how you can create your own scenes and worlds with the help of Ogre 3D. Ogre

3D is one of the biggest open source 3D render engines and enables its users to create and

interact freely with their scenes.

This book can't show all the details about Ogre 3D but rather provide a solid introducon

with which you, as a reader, can start using Ogre 3D by yourself. Aer nishing the book,

you will be able to use the documentaon and the wiki to look up for the needed

informaon and complex techniques, which aren't covered in this book.

What this book covers

Chapter 1, Installing Ogre 3D, shows how to get and congure Ogre 3D. We also create our

rst scene and start learning the internals of Ogre 3D

Chapter 2, The Ogre Scene Graph, introduces us to the concept of a scene graph and how

it is used for describing 3D scenes

Chapter 3, Camera, Light, and Shadow, adds lights and shadows to our scene and also

experiments with dierent camera sengs

Chapter 4, Geng User Input and using the Frame Listener, adds interacvity to our

applicaon using user input

Chapter 5, Animang Models with Ogre 3D, will enhance our scene using animaons to

add more interacvity and realism

Chapter 6, Scene Managers, will introduce us to dierent concepts for organizing 3D scenes

and what implicaon these choices will have

Preface

[ 2 ]

Chapter 7, Materials with Ogre 3D, will show us how to add a new level of detail and

exibility to our applicaon using materials and shaders.

Chapter 8, The Compositor Framework, will show us how to add post processing eects

to change the look of our complete scene with the knowledge about materials

Chapter 9, The Ogre 3D Startup Sequence, shows us how we can use Ogre 3D without the

help of an

ExampleApplication we had used previously

Chapter 10, Parcle Systems and Extending Ogre 3D, gives an introducon to some more

advanced techniques and perspecves that can be done with Ogre 3D

What you need for this book

You need a solid understanding of C++ and how to create applicaons using C++ for this

book. Of course, you need a compiler to compile the example applicaons. This book uses

Visual Studio as a reference, but any other compiler will also do. Your computer should have

a graphic card with 3D capabilies. It would be best if the graphic card supports DirectX 9.0

because Ogre 3D is an open source soware and we will download it in Chapter 1. So there is

no need for you to have Ogre 3D already installed on your computer.

Who this book is for

If you ever wanted to develop 3D applicaon with Ogre 3D, this example-driven book will

enable you to do so. Understanding of C++ is needed to follow the examples in the book.

This book is an example-driven introducon to Ogre 3D. Each example shows some new

features and you learn step-by-step to create complex scenes with dierent eects using

Ogre 3D. Aer several examples discussing one topic, there is a do-it-yourself part where

you will be challenged to solve problems on your own.

Conventions

In this book, you will nd a number of styles of text that disnguish between dierent

kinds of informaon. Here are some examples of these styles, and an explanaon of their

meaning.

Code words in text are shown as follows: "Delete all the old code in

createScene(),

except for the plane-related code."

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