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International Conference on Shape Modeling & Applications
Subdivision-Curve Primitives: A New Solution for Interactive Implicit Modeling
Genova, Italy
May 07-May 11
ISBN: 0-7695-0853-7
Marie-Paule Cani, iMAGIS-GRAVIR
Samuel Hornus, iMAGIS-GRAVIR
To remain an attractive model, skeleton-based implicit surfaces have to allow the design and display of shapes at interactive rates. This paper focuses on surfaces whose skeletons are graphs of interconnected curves. We present subdivision-curve primitives that rely on convolution for generating bulge-free and crease-free implicit surfaces. These surfaces are efficiently yet correctly displayed using local meshes around each curve that locally overlap in blending regions. Subdivision-curve primitives offer a practical solution to the unwanted-blending problem that ensures C1 continuity everywhere. Moreover, they can be used to generate representations at different levels of detail, enabling the interactive display of at least a coarse version of the objects, whatever the performance of the workstation.
Marie-Paule Cani, Samuel Hornus, "Subdivision-Curve Primitives: A New Solution for Interactive Implicit Modeling," smi, pp.0082, International Conference on Shape Modeling & Applications, 2001
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