The issue of virtual human animation is of great importance. And the virtual human animation plays a significant role in various areas. In this paper, we introduce a typical skeletal-based virtual human animation engine. We focus on the key techniques of skeleton-based animation, including the skin deformation using Spherical Blending Skinning (SBS) algorithm, skeleton update, easy access to LOD management which can greatly improve the efficiency of the application, and motion control by motion blending. In our experiment, our model can successfully deal with the artifacts of skin deformation compared with other skinning algorithms. Also the motion control demonstrates realistic performance.
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