一种三维图形视景快速构造和显示方法

A Method of Quickly Constructing and Rendering 3D Graphic Scene

目的 研究三维图形视景快速构造和显示方法 .方法 通过对三维视景数据的分析 ,利用面向对象的设计思想 ,创建三维图形视景的层次化数据结构 ,实现三维图形视景的快速构造及其显示 .结果 由于该表示方法具有面向对象技术的可扩展性和可重用性 ,同时允许综合运用多精度表示、实例表示等图形加速技术 ,不仅提高了构造三维图形视景的灵活性 ,也大大提高了三维图形视景的动态显示速度 .结论 采用面向对象技术以层次化方法组织视景数据 ,加快了三维图形视景的构造和显示 .

Aim To study a method of constructing and rendering 3D graphic scene quickly. Methods Through analysing 3D scene data and applying O O(object oriented) technique, the hierarchical data structure of 3D graphic scene was built and a method of consturcting and rendering 3D graphic scene quickly was realized. Results This method has the qualities of extensibility and reusability by means of O O method and the variable resolution technique and instance technique can also be used for accelerating graphic rendering, so 3D graphic scene can be constructed and rendered quickly. Conclusion By applying O O method to manage hierarchical scene data, both constructing and rendering 3D graphic scene are accelerated.