We present a new technique for simulating high resolution surface
wrinkling deformations of composite objects consisting of a soft
interior and a harder skin. We combine high resolution thin shells
with coarse finite element lattices and define frequency based constraints
that allow the formation of wrinkles with properties matching
those predicted by the physical parameters of the composite
object. Our two-way coupled model produces the expected wrinkling
behavior without the computational expense of a large number
of volumetric elements to model deformations under the surface.
We use C1 quadratic shape functions for the interior deformations,
allowing very coarse resolutions to model the overall global deformation
efficiently, while avoiding visual artifacts of wrinkling
at discretization boundaries. We demonstrate that our model produces
wrinkle wavelengths that match both theoretical predictions
and high resolution volumetric simulations. We also show example
applications in simulating wrinkles on passive objects, such as
furniture, and for wrinkles on faces in character animation.