Resolution independent curved seams in clothing animation using a regular particle grid
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Date
2004-11-15
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Texas A&M University
Abstract
We present a method for representing seams in clothing animation, and its application
in simulation level of detail. Specifically we consider cloth represented as a regular
grid of particles connected by spring-dampers, and a seam specified by a closed set
of parametric trim curves in the cloth domain.
Conventional cloth animation requires the tessellation of seams so that they are
handled uniformly by the dynamics process. Our goal is a seam definition which
does not constrain the attached clothing panels to be of the same resolution, or even
constant resolution, while not being a hindrance to the dynamics process. We also
apply our seams to cloth defined on a regular grid, as opposed to the irregular meshes
commonly used with seams.
The determination of particles interior to the cloth panel can be done using wellknown
graphics operations such as scan-conversion. Due to the particle-based nature
of the simulation, the dynamics approach combines easily with existing implicit and
explicit methods.
Finally, because the seams are resolution independent, the particle density per
clothing panel can be adjusted as desired. This gives rise to a simple application
of the given seams approach illustrating how it may be used for simulation level of
detail.
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Keywords
computer graphics, physically based modeling, cloth modeling, seams, simulation level of detail