关键词: 浮雕曲面, 剪切粘贴, 网格编辑, 曲面参数化

Abstract: Relief is a kind of complex surface where the detail is attached onto a flat or curved background surface.The detail is usually designed on a plane background and then pasted onto 3D shapes for various applications, which is defined as a relief pasting problem. In this paper, both relief and target object are expressed as triangular mesh models. Firstly, an area on the target object is specified and parameterized onto a plane, so the relationship between the source relief and the target area is established. Secondly, an algorithm based on normal vector adjustment is designed for relief wrapping on the new base with less distortion. Finally, the relief and the target area are integrated into a complete triangular mesh. The method proposed is not only suitable for the target surface with a shape of flat or small curvature, but also has a good result for the target area with large curvature.

Key words: relief surface, cut-and-paste, mesh editing, surface parameterization