关于Irrlicht这一引擎，想必不用过多介绍什么了，下面是我从其首页上搬来的一段介绍文字，以供参考
The Irrlicht Engine is an open source high performance realtime 3D engine written in C++. It is completely cross-platform, using D3D, OpenGL and its own software renderers, and has all of the state-of-the-art features which can be found in commercial 3d engines. We've got a huge active community, and there are lots of projects in development that use the engine. You can find enhancements for Irrlicht all over the web, like alternative terrain renderers, portal renderers, exporters, world layers, tutorials, editors, language bindings for java, perl, ruby, basic, python, lua, and so on. And best of all: It's completely free.
正式开始学习之前先推荐一篇博客。
事实上这篇博客在笔者的学习过程起到了很大的帮助，唯一感到遗憾的是其中内容没有照顾到引擎实现的个中细节。同样，笔者也先对Irrlicht初代的版本（0.1）进行剖析，剖析方法也是一样——自己新建一个项目，源码看到哪，自己就写到哪。
按照规矩，这里放上Irrlicht各版本源码下载的传送门。
从下一篇开始我们将逐步揭开Irrlicht中的方方面面。写在前面，笔者所使用的开发环境为：Windows10-64bit操作系统 + Visual Studio 2013 IDE，请自行对照参考。