Sketch-Based Adaptive Mesh Augmentation Using Stellar Operators

Abstract

Fig. 1. Overview of our modeling framework: The sketching stage allows the graphic designer to place feature curves (red stroke) on the surface of the mesh (left); The adaptive mesh refinement stage increases the mesh resolution around the features (middle); Finally, the feature creation displaces vertices to create a surficial feature (right).Abstract-In this paper we present a new method for modeling and editing surface detail using free-form curves and a natural interface. It combines in a original way an adaptive multiresolution mesh structure with a simple, intuitive sketch-based interface. One of the novel contributions of this work is the curve sensitive mesh resolution control, which allows the definition of a rich set of operators that locally modify the surface geometry. Furthermore, the present framework provides the basic functionality to build a complete feature based modeling system.

Progressive sketching with instant previewing

“…One pioneer work is Teddy [8], with which the user draws a closed 2D contour, a simple oval-like object interpolating the contour is created, and then the user can use a set of sculpting tools to modify the initial shape until a desired shape is obtained. Typical sculpting tools include deformation [9,20,21,22], merging [16,23], extruding, cutting, smoothing [8,9], feature sketching [9,22], etc. Readers are referred to excellent survey papers [24,19] for an overview of these sculpting functions.…”