Direct Manipulation of Free-Form Deformations (1992)
| Venue: | Computer Graphics |
| Citations: | 167 - 0 self |
BibTeX
@INPROCEEDINGS{Hsu92directmanipulation,
author = {William M Hsu and John F. Hughes and Henry Kaufman},
title = {Direct Manipulation of Free-Form Deformations},
booktitle = {Computer Graphics},
year = {1992},
pages = {177--184}
}
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Abstract
Free-form deformation (FFD) is a powerful modeling tool, but controlling the shape of an object under complex deformations is often difficult. The interface to FFD in most conventional systems simply represents the underlying mathematics directly; users describe deformations by manipulating control points. The difficulty in controlling shape precisely is largely due to the control points being extraneous to the object; the deformed object does not follow the control points exactly. In addition, the number of degrees of freedom presented to the user can be overwhelming. We present a method that allows a user to control a free-form deformation of an object by manipulating the object directly, leading to better control of the deformation and a more intuitive interface. CR Categories: I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling - Curve, Surface, Solid, and Object Representations; I.3.6 [Computer Graphics ]: Methodology and Techniques - Interaction Techniques. Ad...
