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| Overview
My work on modeling with subdivision surfaces
is part of a joint project between IBM
and Dassault Systemes. The primary
goal of this project is to explore the applicability of subdivision
techniques to interactive surface editing for shape design. |
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| Remeshing
with subdivision connectivity I am currently
working on algorithms for automatic conversion of irregular meshes
to semi-regular ones. Preview results. |
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| Cut-and-paste
editing In collaboration with NYU
we developed an interactive cut-and-paste tool for surfaces. The functionality
is similar to image cutting and pasting: a source region is selected,
extracted, and pasted somewhere else. In the case of surfaces, complications
arise from the necessity to separate the general shape of the source
surface from the details to be transferred to the target. In addition
to addressing this issue, we developed algorithms for target area
identification and for establishing a map between the source and target
regions involved in pasting. Our efficient implementation allows for
interactive manipulation of the pasted feature on the target surface.
More... |
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| Sharp
features & trimming We developed a method
for creating sharp features and trim regions on multiresolution subdivision
surfaces along a set of user-defined curves. The novelty of our work
lies in the ability to create sharp features and trim boundaries anywhere
on a surface and in the fact that the resulting representation remains
within the multiresolution subdivision framework. Preserving the original
representation has the advantage that other operations applicable
to multiresolution subdivision surfaces can subsequently be applied
to the edited model. This work was done in collaboration with NYU.
More... |
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| Variational
design We have also investigated the issue
of interactively deforming an initial geometric shape to obtain a
new one that satisfies certain requirements. These requirements are
formulated as a set of constraints and the underlying geometric representation
is modified to meet these constraints. We have designed and implemented
a prototype variational modeler that allows interactive editing of
complex objects of arbitrary topology. We take advantage of our underlying
multiresolution representation to allow editing at different scales.
Most importantly, we preserve original detail during editing in a
natural way. More ... |
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| Related
publications. |