Title
Spline Interface for Intuitive Skinning Weight Editing.
Abstract
Despite the recent advances in automatic methods for computing skinning weights, manual intervention is still indispensable to produce high-quality character deformation. However, current modeling software does not provide efficient tools for the manual definition of skinning weights. Widely used paint-based interfaces give users high degrees of freedom, but at the expense of significant efforts and time. This article presents a novel interface for editing skinning weights based on splines, which represent the isolines of skinning weights on a mesh. When a user drags a small number of spline anchor points, our method updates the shape of the isolines and smoothly interpolates or propagates the weights while respecting the given iso-value on the spline. We introduce several techniques to enable the interface to run in real-time and propose a particular combination of functions that generates appropriate skinning weight over the surface. Users can create skinning weights from scratch by using our method. In addition, we present the spline and the gradient fitting methods that closely approximate initial given weights, so that a user can modify the weights with our spline interface. We show the effectiveness of our spline-based interface through a number of test cases.
Year
DOI
Venue
2018
10.1145/3186565
ACM Trans. Graph.
Keywords
Field
DocType
Character modeling, rigging, skinning, spline
Small number,Spline (mathematics),Computer vision,Scratch,Skinning,Computer graphics (images),Software,Test case,Artificial intelligence,Mathematics
Journal
Volume
Issue
ISSN
37
5
0730-0301
Citations 
PageRank 
References 
1
0.35
29
Authors
2
Name
Order
Citations
PageRank
Seungbae Bang110.35
Sung-Hee Lee243.46