说明：  简要介绍了跨平台的开源场景图形API,本书专为准备开始学习OSG，并使用OSG 进行程序开发的开发者所编写。 本书所涉及的工具可能包括特定行业的应用软件，本书同时还提供有关虚拟现实 和仿真方面的介绍，这也正是OSG 的强大之处所在。
(A Quick Introduction to the Cross-Platform Open Source Scene Graph API.This book is designed for ready to start learning OSG, and program development using OSG written by developers. Tools involved in the book may include industry-specific software applications, this book also provides information about virtual reality And presentation aspects of simulation, which is where the power of the OSG.)