SBM09: Sketch Based Interfaces and Modeling 2009
Permanent URI for this collection
Browse
Browsing SBM09: Sketch Based Interfaces and Modeling 2009 by Subject "Categories and Subject Descriptors (according to ACM CCS): I.3.5 [Computer Graphics]: Computational Geometry-Object Modeling: Modeling packages"
Now showing 1 - 1 of 1
Results Per Page
Sort Options
Item Sketch-Based Subdivision Models(The Eurographics Association, 2009) Nasriy, A.; Karam, W. Bou; Samavati, F.; Cindy Grimm and Joseph J. LaViola, Jr.Designing a control mesh (or a polyhedron) for a subdivision model is a tedious task. It involves many difficult decisions such as how to minimize the number of extraordinary vertices, how best to choose their valencies, and where to place them in the control mesh. In this paper, we present an intuitive and interactive approach for using sketch-based interface to design subdivision models. The input to the system is a set of strokes forming the profile curves of the surface. From the constructed control polygons of the sketched curves, a coarse and quad dominant control mesh is generated with few extraordinary vertices or faces. The corresponding limit surface interpolates the profile curves with the capability of local control across these curves and of the model in general. Although our approach is oriented towards quad-based systems such as Catmull-Clark, it could well be adopted in other subdivision schemes.