Interactive Shape Modeling
One of the many courses at Siggraph 2006 was “Interactive Shape Modeling” and was intended to present the current trends in interactive shape modeling. It is based partly on the AIM@Shape Summer School on Interactive Shape Modeling held recently at the Darmstadt University of Technology.
An interesting course of presentations – have a quick browse through the topics to see if there is anything which appeals to you.
Abstract
Computer Graphics continues to battle the challenging question: “How quickly and effectively can a designer transform a mental concept into a digital shape, which is easy to refine and reuse?”Traditional techniques of sculpting and sketching continue to be among the quickest and most expressive ways for designers to visually manifest their ideas. Many new modeling techniques successfully use these paradigms for interactive design of digital shapes. Advanced geometric modeling representations and algorithms are an essential foundation for this type of tools.
The course covers the gamut including fundamental mathematical representations of shape, efficient algorithms, interaction paradigms and specialized hardware user interface devices, with presentations unified by a strong emphasis on the use of each topic for interactive modeling applications. The audience will be presented with the properties of various implicit, explicit and hybrid shape representations and the capabilities, limitations and implementation details of current algorithms for interactive shape creation and manipulation. The goal of this course is to impart the audience with both an understanding of the big open questions as well as the skills to apply recent research in interactive shape modeling applications.
Topics and Speakers included:
Karan Singh: Introduction & Motivation — Conceptual Shape Design
Sketching and sculpting and traditional media; From standard CAGD methods to fast free-form shape design; Case study in conceptual automotive design; Hardware for shape modeling; Physical prototypes and their digital equivalents; Overview of industrial software for conceptual modeling;
Denis Zorin: Mathematical representations of shape for modeling
Introduction to shape representations; Geometric concepts of topology, resolution and surface features.
Alexis Angelidis: Global space & Free form deformations (Presenter: Karan Singh)
Space deformations & space warps, practical examples; Free-form deformations and its variants; Wires and surface-oriented deformations; Sweepers; A geometric alternative: constant volume space deformations (swirling sweepers).
Denis Zorin: Multiresolution modeling
Mesh and parametric surface editing; Multiresolution editing with subdivision surfaces and volumes
Marc Alexa: Mesh editing based on discrete Laplace and Possion models
Some remarks on discrete differential geometry; Relation to multiresolution modeling; Laplace coordinates; Shape transformation properties.
Sarah Frisken: Designing with distance fields
A history of applications and research using distance fields; Representing, editing, and rendering distance fields; Adaptively sampled Distance fields (ADFs) and implicit surfaces; Interactive concept design and detailed carving with ADFs
Marie-Paule Cani: Towards ‘virtual clay’
Local deformations & force feedback in volumetric sculpting; Physically-based virtual clay: enabling local & global deformations.
Steven Schkolne: Gesture-based shape modeling
Modeling with your hands in free space
Further details of the course are available (including tutorial Notes and Presentation slides) HERE.
Published papers on these topics are available at the same location or from My Local Store (20Mb PDF file)
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