OpenSceneGraph 3高级编程指南：80个实用教程

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《OpenSceneGraph 3 Cookbook》是一本专为想要深入理解和掌握高级3D编程技术的开发者编写的实用指南。本书由Rui Wang和Xuelei Qian共同编著，由BIRMINGHAM-MUMBAI出版社出版，版权归属于2012年的Packt Publishing。它提供了超过80个精心设计的菜谱，每个菜谱都围绕OpenSceneGraph (OSG) API展开，帮助读者通过实践掌握这个强大的3D图形库。该书旨在教授如何有效地利用OpenSceneGraph 3进行高级场景构建、渲染、动画、交互以及性能优化等任务。OpenSceneGraph是一个跨平台的开源3D图形引擎，广泛应用于游戏开发、虚拟现实、科学可视化和图形应用程序等领域。书中内容不仅涵盖了基础概念，还包括了如何处理复杂场景，实现光照、纹理、粒子系统、物理模拟等高级特性。作者们确保了书中信息的准确性，但必须指出的是，由于软件技术的快速更新，部分细节可能在实际应用中有所变化。此外，尽管出版社尽力确保商标信息的准确性，但读者应注意这并不能保证所有提及的公司和产品的最新状态。《OpenSceneGraph 3 Cookbook》适合那些已经熟悉OSG基本用法，并希望进一步提升技术水平的开发人员。它既适合独立学习者，也适合作为教学或培训材料。阅读这本书，读者不仅能获得理论知识，还能通过实例项目实践，从而巩固和扩展自己的3D图形编程能力。在阅读过程中，读者需要注意版权规定，未经出版商许可，不得复制、存储或通过任何方式传播书中的内容。同时，尽管本书提供了一定的技术指导，但不能完全排除因技术进步带来的潜在问题，因此在实际应用时需谨慎处理和评估。《OpenSceneGraph 3 Cookbook》是一本具有实战价值的参考书籍，对于希望在3D图形编程领域深入探索的专业人士来说，是一份不可或缺的参考资料。

Preface

Who this book is for

This book is intended for software developers, researchers, and students who are already

familiar with the basic concepts of OpenSceneGraph and can write simple programs with

it. A basic knowledge of C++ programming is also expected. Some experience of using and

integrating platform-independent APIs is also useful, but is not required.

General real-time computer graphics knowledge would be sufcient. Some familiarity with

3D vectors, quaternion numbers, and matrix transformations is helpful.

Conventions

In this book, you will nd a number of styles of text that distinguish between different kinds of

information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: “For Debian and Ubuntu users, make sure you have

the root permission and type the command apt-get in the terminal as shown in the following

command line.”

A block of code is set as follows:

// Create the text and place it in an HUD camera

osgText::Text* text = osgCookBook::createText(

osg::Vec3( 50.0f, 50.0f, 0.0f), "", 10.0f);

osg::ref_ptr<osg::Geode> textGeode = new osg::Geode;

textGeode->addDrawable( text );

Any command-line input or output is written as follows:

# sudo apt-get install subversion

New terms and important words are shown in bold. Words that you see on the screen, in

menus or dialog boxes for example, appear in the text like this: “You may easily download

the binary packages of specied platform in the Binary Packages section”.

Warnings or important notes appear in a box like this.

Tips and tricks appear like this.

Preface

Reader feedback

Feedback from our readers is always welcome. Let us know what you think about this

book—what you liked or may have disliked. Reader feedback is important for us to

develop titles that you really get the most out of.

To send us general feedback, simply send an e-mail to feedback@packtpub.com, and

mention the book title through the subject of your message.

If there is a topic that you have expertise in and you are interested in either writing or

contributing to a book, see our author guide on www.packtpub.com/authors.

Customer support

Now that you are the proud owner of a Packt book, we have a number of things to help you to

get the most from your purchase.

Downloading the example code

You can download the example code les for all Packt books you have purchased from

your account at http://www.packtpub.com. If you purchased this book elsewhere,

you can visit http://www.packtpub.com/support and register to have the les

e-mailed directly to you.

You can also download the latest version of the source code package at the author's GitHub

repository https://github.com/xarray/osgRecipes. All recipes of this book are

included in this link, as well as more OSG-related examples written by the author and

other contributors.

Errata

Although we have taken every care to ensure the accuracy of our content, mistakes do

happen. If you nd a mistake in one of our books—maybe a mistake in the text or the

code—we would be grateful if you would report this to us. By doing so, you can save other

readers from frustration and help us improve subsequent versions of this book. If you nd

any errata, please report them by visiting http://www.packtpub.com/support,

selecting your book, clicking on the errata submission form link, and entering the details

of your errata. Once your errata are veried, your submission will be accepted and the errata

will be uploaded to our website, or added to any list of existing errata, under the Errata section

of that title.

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