An adaptable sketch-based modeling system

In this paper, we propose a novel approach for inferring a closed smooth surface from sketched contours and deforming it by the following sketch-based gestures. Once the contours are drawn, smooth distance fields are computed within the contours, which are then transformed into height fields. A closed smooth surface is obtained upon the contours and the inferred height fields. The smooth surface can be further deformed by the four deformation gestures defined in the system. Though simple in idea, the system is able to create moderately complex models very quickly and intuitively.