Novel metaballs-driven approach with dynamic constraints for character articulation
Novel metaballs-driven approach with dynamic constraints for character articulation
复制标题
新颖的元球驱动方法,具有角色清晰度的动态约束
DOI:
10.1007/s11432-018-9470-4
复制
发表时间:
2018-07
期刊:
影响因子:
--
通讯作者:
Qin Hong
中科院分区:
文献类型:
--
作者:
Bai Junxuan;Pan Junjun;Yang Yuhan;Qin Hong
Skinning techniques are essential for character articulation in 3D computer animation. Currently, skeleton-based methods are widely used in the animation industry for its simplicity and efficiency, especially in linear blend skinning (LBS)[1] and dual quaternion skinning (DQS)[2]. However, owing to the lack of the inside volumetric representation, they suffer from joint collapse, candy-wrapper, and bulging problems.As shown in Figure 1, we herein propose a volumetric skinning method using a set of balls (metaballs). Metaballs method is a modeling technique based on implicit surfaces. It can represent continuous, blobby-like surfaces. This method has been applied to virtual surgery simulations [3] for modeling human organs. Here, we employ a displacement representation and Laplacian coordinates to represent the surface. We also present additional joint balls to improve the deformation quality around the joints. To introduce dynamic effects such as jiggling, we couple our metaballs model with position-based dynamics (PBD)[4] and action lines [5]. The action lines are employed to represent simplified muscles and tendons that can constrain the motions of the balls. The experiments show that our metaballs model can create realistic deformations for real-time applications. To demonstrate our method, we first describe our metaballs method for primary deformations. Subsequently, we illustrate the techniques for the
登录
查看更多内容
影响因子:
3.5
作者:
Pan Junjun;Zhao Chengkai;Zhao Xin;Hao Aimin;Qin Hong
通讯作者:
Qin Hong
影响因子:
6.2
作者:
Kavan, Ladislav;Collins, Steven;O'Sullivan, Carol
通讯作者:
O'Sullivan, Carol
DOI:
--
发表时间:
1989-12
期刊:
--
影响因子:
--
作者:
N. Magnenat-Thalmann;Richard Laperrière;D. Thalmann
通讯作者:
N. Magnenat-Thalmann;Richard Laperrière;D. Thalmann
DOI:
10.1109/smi.2004.1314505
发表时间:
2004-06
期刊:
Proceedings Shape Modeling Applications, 2004.
影响因子:
--
作者:
Y. Lipman;O. Sorkine-Hornung;D. Cohen-Or;D. Levin;Christian Rössl;H. Seidel
通讯作者:
Y. Lipman;O. Sorkine-Hornung;D. Cohen-Or;D. Levin;Christian Rössl;H. Seidel
影响因子:
4.6
作者:
Delp, Scott L.;Anderson, Frank C.;Thelen, Darryl G.
通讯作者:
Thelen, Darryl G.