Skip to content

← ArchivePaper2012

Data-Driven Estimation of Cloth Simulation Models

Eder Miguel, Derek Bradley, Bernhard Thomaszewski, Bernd Bickel, Wojciech Matusik, Miguel A. Otaduy, Steve Marschner

CGFAcademic181 citesCFX

Measures complex 3D cloth deformation from physical samples and fits nonlinear simulation model parameters to the observations.

Abstract

Progress in cloth simulation for computer animation and apparel design has led to a multitude of deformation models, each with its own way of relating geometry, deformation, and forces. As simulators improve, differences between these models become more important, but it is difficult to choose a model and a set of parameters to match a given real material simply by looking at simulation results. This paper provides measurement and fitting methods that allow nonlinear models to be fit to the observed deformation of a particular cloth sample. Unlike standard textile testing, our system measures complex 3D deformations of a sheet of cloth, not just one‐dimensional force‐displacement curves, so it works under a wider range of deformation conditions. The fitted models are then evaluated by comparison to measured deformations with motions very different from those used for fitting.

How to read this

Category
Method: data-driven measurement and parameter fitting for cloth models
Contributions
  • A measurement system that captures complex 3D deformations of a real cloth sheet rather than only 1D force-displacement curves
  • Fitting methods that estimate nonlinear cloth-model parameters from those observations
  • Validation by comparing fitted models against measured deformations under motions different from the fitting data
Context
Addresses parameterization of the deformation models used by implicit cloth simulators in the Baraff and Witkin Large Steps lineage, connecting measured real cloth to simulation parameters.Builds on: Large Steps in Cloth Simulation
Correctness
Because it measures full 3D deformation over a wider range of conditions than standard textile testing, it is better posed than 1D fitting; the key caveat is that fidelity depends on the chosen nonlinear model's expressiveness and on how representative the captured deformations are of target motions.
Clarity
Accessible in motivation; a first pass conveys the measure-then-fit idea, with a second pass needed for the optimization and the specific deformation model fitted.
How to read it
First pass for the capture-and-fit concept and validation protocol; second pass on the parameterization and the fitting objective if you plan to calibrate a simulator to real material.

Builds on

Built upon by

Nothing yet.

Related work

Keywords

This page summarises the entry and links to its original source. The archive never hosts or redistributes the publication itself.Show it in the full archive list →