虚拟现实中的三维建模

虚拟现实(Virtual Reality-VR)已有了很多成熟的经验、方法和标准,在社会生活的各方面都有重要的使用,其中三维建模技术是最基本的一个环节。在中国由于各种原因计算机图形技术起步较晚技术水平与发达国家相比有较大的差距,但最近几年我国在这方面发展很快,应用范围有极大的提高。产业化是趋势。目前三维建模方法主要有多边形(Polygon)建模、非均匀有理B样条曲线建模(NURBS)、细分曲面技术建模(Subdivision Surface)。每种建模方法各有其优点和缺点。本文主要介绍了多边形(Polygon)建模和NURBS建模两种建模方法,并用两个实例来说明两种建模技术的区别。

Build 3D model in virtual reality

Nowadays there are many mature experience, methods and standards about virtual reality, It plays a very important role in every aspect of our society. Above all, 3D model technology is the most basic link. For variors reasons China hao been way behind the developed nations. But in recently years, this technology has been developing fast and the application range has extremely enhanced. The general trend is indnstnialization. The main methods of 3D model technology at present is: Polygon, Nurbs and Subdivision surface. Every of them has its own advantages and disadvantages. The author mainly introduces Polygon and Nurbs in this the sis, and uses two instances to explain the differences between the two methods.