An automated method for generating customizable cages using barycentric coordinates

Tóth, Ákos and Kunkli, Roland (2018) An automated method for generating customizable cages using barycentric coordinates. Annales Mathematicae et Informaticae, 49. pp. 167-180. ISSN 1787-6117

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Abstract

In computer graphics, we usually use cage-based deformation techniques to manipulate high-resolution 3D models in real time. The most time-consuming task in cage-based deformation is the construction of the cage which surrounds the model to be deformed. In this paper, we introduce a novel method to generate cages for 3D triangulated models automatically. The desired number of the cage vertices and the distance between the cage and the input model are adjustable by the users. Our method generates a cage which envelops the model, then eliminates the intersections between them. The result of the algorithm is a 3D triangulated mesh (called cage) which can be used for cage-based deformation techniques without any modifications. Experimental results and demonstrative pictures show that our algorithm is effective for different types of 3D models. Keywords: cage generation, cage-based deformation, mesh deformation MSC: 68U05

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