03D引擎设计.docVIP

3D引擎设计 摘要 本文应用面向对象设计方法，开发一个实时渲染的图形引擎框架结构。在结构中主要使用OpenGL函数接口，此结构也适用于Direct3D使用设计模，对框架进行抽象分成以下子系统数学系统核心系统平台支持系统对于数学系统主要提供在渲染过程中需要用到的数学和线性代数例如向量矩阵等核心系统是整个结构的核心消息处理当前帧的渲染都在核心系统中它负责调节调用和维护其他的子系统平台支持主要考虑到可能的夸平台原因而抽象出来的一层为将来使用从比较低的级别上来看，图形引擎负责描绘对观察者可见的物体。典型的就是使用图形API，例如：OpenGL、Direct3D来进行渲染，描画相应的物体。从比较高的级别上来看引擎主要是封装了一些固定的算法对场景的组织和对底层的隔离让使用此框架进行应用开的开发人员不必考虑底层的细节问题VC++进行开发。 关键词 3D引擎结构场景组织四叉树动态细节度控制This paper uses object-oriented method to design a 3D graphic engine architecture for real time rendering . In this framework major use OpenGL API .But the ideal apply equally as well as Direct3D.Use design pattern to abstract the structure and divide into such subsystems: Mathematic subsystem, Core subsystem、Platform supply subsystem. For the Mathematic subsystem. the major responsibility is to provide the require of mathematic and linear algebra .Such as vector ; matrix etc. Core subsystem is the core of the whole framework ,message process ,render current frame are all in this subsystem. It take responsibility for adjustment ,scheduling and maintain other subsystems. Platform supply subsystem is in considering of boast platform for the future. At low-level, a graphics engine has the responsibility to draw the objects that are visible to an observer. Typically uses a graphics API such as OpenGL or Direct3D to implement a renderer whose job it is to correctly draw the objects .At high-level ,a graphics engine encapsulations some algorithm ,organize scene, separate the detail from low level, Let application programmers who use this engine without regard for the low level detail. Example with render API to use, develop on which platform, how to organize scene and some implicit algorithm. This system in the Windows platform using VC + + for development. Keywords 3D engine；architecture；scene organize；quaternary tree；dynamic detail control 目录 摘要 I Abstract II 第1章 绪论 1 1.1选题背景及目的 1 1.2 课题研究的内容 1 第2章 概要设计 3 2.1系统整体结构描述 3 2.2 各个子模块描述 3 2.2.1 数学子系统 4 2.2.2 平台支持 5 2.2.3 引擎核心 5 第3章 类之间的继