United States Patent: 7,098,911

Inventors: Chen; Yanyun, Guo; Baining, Xu; Ying-Qing, Shum; Heung-Yeung

发明人：陈彦云、郭百宁、徐迎庆、沈向洋

Abstract: The present invention provides a computer implemented method for placing feathers on a surface. The method includes providing a surface having a plurality of vertices and establishing a growing direction for each of the plurality of vertices on the surface. Feathers are placed on the surface based on the plurality of vertices and the growing direction.