Fundamentals of Wearable Computers and Augmented Reality, 2nd Edition

571Soft Skin Simulation for Wearable Haptic Rendering

sinceedges need to be aligned with the deformation direction that is being constrained,

requiring extensive remeshing. In continuum-based approaches, Thomaszewski etal.

(2009) use different limits for each strain value component of a cloth simulation

(weft, warp, and shear strains). With this approach, limits and strain values are always

dened on undeformed axes; hence they do not distinguish well the various deforma-

tion modes under large deformations. Picinbono etal. (2003) allow transverse aniso-

tropic strain-limiting (with a transverse and a radial privileged direction) by adding

an energy term to a hyperelasticity formulation, penalizing stretch deformations in

the transverse d ...