四元数在关键帧骨骼动画中的应用

在关键帧骨骼动画中,中间帧的生成效果直接影响着动画的自然流畅程度。生成中间帧的方法有线性插补法和高次多项式拟合法等。由于人体的骨骼关节之间存在着连带关系,且关节的旋转角度受到约束,对人体的关键帧姿态进行插值不同于一般物体。本文在建立人体骨骼模型的基础上,采用四元数方法对给定的关键帧进行插值生成中间帧,并对生成结果做简单的分析。

Application Reserch of Quaternion in Keyframes Skeletal Animation

In the skeletal animation, effect of in-between frames will influence the fluency of animation directly. The usual methods of building in-between frames include linear interpolation method and higher order spine interpolation. Skeletons and joints in human body not only have the related connection, but also joint is restricted by rotatable angle. Therefore, interpolation of human body' s gesture is different from ordinary object. On the basic of creating human body' s skeletal model, using quaternion method to building in-between frames, and analyzing the result.