基于可编程图形处理器的骨骼动画算法及其比较  

Programmable GPU technology in skeletal animations and their comparison

作　　者：季卓尔[1] 张景峤[1] 

机构地区：[1]上海大学计算机工程与科学学院,上海200072

出　　处：《计算机工程与设计》2008年第21期5550-5554,共5页Computer Engineering and Design

基　　金：上海大学创新基金项目(07003)

摘　　要：骨骼动画相对于之前的动画方法具有占用空间小的优点,但是其代价是计算量的增加,从而导致绘制效率的降低。另一方面,近年来可编程图形处理器技术在计算机图形处理领域已得到广泛研究。因此,提出了基于可编程图形处理器实现骨骼动画的方法,采用了最先进的可编程处理管线。使用多种不同的方法在可编程图形处理器中实现了骨骼动画,并对其性能进行了分析与比较。该方法借助可编程图形处理器强大的计算能力,分担了骨骼动画中的顶点更新的计算任务,从而大大提升了骨骼动画的绘制效率。Compared with previous animation, skeletal animation has the advantage that it just needs a relatively small space. But when skeletal animation is used, more computation is needed. It may slow down the render efficiency. On the other hand, in the current years, the technology of programmable GPU is widely used to process 3D computer graphics. So skeletal animation is proposed that based on the GPU technology and used the most advanced programmable pipeline. Several methods are used to realize them and compare them in detail. The great power of programmable GPU is used to accelerate skeletal animation, and GPU is used to substitute CPU on the mission of updating vertices＇ information. By doing so, the render efficiency can be greatly improved.

关 键 词：骨骼动画 可编程图形处理器 计算机图形 蒙皮网格 统一渲染架构 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]