Simulating thin hyperelastic materials, such as human skin and skin-tight clothing, that move in close contact with the body is very difficult. We solve this problem by combining Eulerian discretization of skin on the body with the use of reduced coordinates. This enables simulation of skin sliding over a body using a single mesh and thus avoids having to detect and handle contact between skin and body, leading to efficiency and robustness. This software has been further developed by Vital Mechanics into a Maya plugin, and has been used by the visual effects industry (e.g., by Image Engine Design to create eponymous characters in the film version of J. K. Rowling’s Fantastic Beasts). We have modeled the human mid-face using the same representation. This paper also developed methods for data-driven real-time skin deformation in a browser using WebGL.
- D. Li, S. Sueda, D. R. Neog, D. K. Pai, “Thin Skin Elastodynamics,” ACM Transactions on Graphics (Proc. SIGGRAPH)}, Volume 32, Issue 4, July 2013, 9 pages. [Paper page]
- D. R. Neog, J. Cardoso, A. Ranjan and D. K. Pai, “Interactive Gaze Driven Animation of the Eye Region,” in Proceedings of the ACM SIGGRAPH Web3D conference (21st Annual International Conference on 3D Web Technology) , Anaheim, CA, July 22-24, 2016. Best Paper Award. [Paper Page, with App]
- D. R. Neog, A. Ranjan and D. K. Pai, “Seeing Skin in Reduced Coordinates,” to appear, FG 2017, 12th IEEE International Conference on Automatic Face and Gesture Recognition, May 30 – June 3, 2017, Washington, DC.