为了满足虚拟角色交互式服饰设计的需要，提出了一种基于手绘轮廓的3维服饰模型生成方法，该方法的主要特点在于以下3个方面：一是通过限定距离场的方向(仅考虑z轴方向)来建立3维人体模型的参考模型，从而简化了距离场计算；二是利用手绘服饰轮廓与人体投影轮廓间的相对位置关系来生成服饰网格，以实现2维草图向3维服饰的有效映射；三是根据服饰网格点与人体模型上网格点间的对应关系来生成3维服饰模型，确保了服饰宽松部分的有效生成。实验结果表明，该方法能够从2维服饰轮廓实时生成符合人体表面形状的3维服饰模型。

A method to construct a 3D garment model from sketched contours is presented for interactive garment design of virtual characters. Our method has three features：firstly, a reference model of 3D mannequin is established by restricting the direction of the distance field along z-axis only, so that the computation of distance field is much easier; secondly, an efficient mapping from 2D sketch to 3D garment is established by using the relative position between sketched garment contour and the outline of human projection; thirdly, the 3D garment model is constructed according to the mapping between garment grids and the grids of human model, and it ensures that loose part of garments can be constructed correctly. The experiment results prove that the proposed method can generate the garment surface constrained by sketch and adapted the underlying form of character model, and the process can be performed in real time.