Subdivision Surfaces with Creases and Truncated Multiple Knot Lines
Article first published online: 15 NOV 2013
© 2013 The Authors Computer Graphics Forum published by John Wiley & Sons Ltd.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Computer Graphics Forum
Volume 33, Issue 1, pages 118–128, February 2014
How to Cite
Kosinka, J., Sabin, M. A. and Dodgson, N. A. (2014), Subdivision Surfaces with Creases and Truncated Multiple Knot Lines. Computer Graphics Forum, 33: 118–128. doi: 10.1111/cgf.12258
- Issue published online: 24 FEB 2014
- Article first published online: 15 NOV 2013
- EPSRC. Grant Number: EP/H030115/1
- multiple knot;
- I.3.5[Computer Graphics]: Computational Geometry and Object Modelling—Curve;
- solid and object representations
We deal with subdivision schemes based on arbitrary degree B-splines. We focus on extraordinary knots which exhibit various levels of complexity in terms of both valency and multiplicity of knot lines emanating from such knots. The purpose of truncated multiple knot lines is to model creases which fair out. Our construction supports any degree and any knot line multiplicity and provides a modelling framework familiar to users used to B-splines and NURBS systems.