Swirling sweepers is a method for modeling shapes while preserving volume. The artist describes a deformation by dragging a point along a path. The method is independant of the geometric representation of the shape. It preserves volume and avoids self-intersections, both local and global. It is capable of unlimited stretching and the deformation can be controlled to affect only a part of the model.

@inproceedings{ACWK04,
author = {Alexis Angelidis and Marie-Paule Cani and Geoff Wyvill and Scott King},
title = {Swirling-Sweepers: Constant Volume Modelling},
booktitle = {Siggraph Technical Sketches and Applications, },
address = {Los Angeles, Etats-Unis},
publisher = {ACM SIGGRAPH},
month = jul,
year = 2004
}