Simulation of clothing with folds and wrinkles

Bridson, Robert; Marino, Sebastian; Fedkiw, Ronald

doi:10.1145/1198555.1198573

Cited by 244 publications

(320 citation statements)

References 75 publications

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“…For the sake of illustration, we have chosen to use a Newmark time integration scheme similar to [8], but a similar approach for energy conservation could be taken with other time integration schemes. Recall that in the context of a Newmark time integration scheme, the evolution of a single particle is defined as follows:…”

Section: Simple Springmentioning

confidence: 99%

“…Figure 10 shows a simple example of these energy conserving bending springs. It is feasible that these ideas could be extended to other bending models, such as [8], [29], [30]. Moreover, we imagine one could extend these energy conservation techniques to other models based on mass-spring systems, such as the hard and soft constraints in [26] (see also [31]).…”

Section: Bending Springsmentioning

confidence: 99%

“…12. The same cloth as in Figure 11, except run using a small time step of the semi-implicit Newmark time integration scheme from [8]. (Left) No physical damping is added, causing the cloth to oscillate on the scale of the grid.…”

Section: Momentum Conserving Correction Forcesmentioning

confidence: 99%

“…Take Figure 11, where we show that a highly deformable piece of cloth is able to recover its initial height when using our energy conservation framework. We reran it using a very small time step of the semi-implicit Newmark integration scheme of [8], which made the simulation take quite a long time to run. A time step this small could never be used in practice but we did it to minimize numerical dissipation as much as possible.…”

Section: A Note On Dampingmentioning

confidence: 99%

“…Our global energy correction technique is used to restore all energy lost during evolution and collisions, allowing the sphere to bounce to its original height. It also restores energy lost from damping, as this simulation uses the semi-implicit Newmark scheme from [8].…”

Section: Introductionmentioning

confidence: 99%

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Energy Conservation for the Simulation of Deformable Bodies

Sheth

Fedkiw

2013

IEEE Trans. Visual. Comput. Graphics

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Abstract-We propose a novel technique that allows one to conserve energy using the time integration scheme of one's choice. Traditionally, the time integration methods that deal with energy conservation, such as symplectic, geometric, and variational integrators, have aimed to include damping in a manner independent of the size of the time step, stating that this gives more control over the look and feel of the simulation. Generally speaking, damping adds to the overall aesthetics and appeal of a numerical simulation, especially since it damps out the high frequency oscillations that occur on the level of the discretization mesh. We propose an alternative technique that allows one to use damping as a material parameter to obtain the desired look and feel of a numerical simulation, while still exactly conserving the total energy -in stark contrast to previous methods in which adding damping effects necessarily removes energy from the mesh. This allows, for example, a deformable bouncing ball with aesthetically pleasing damping (and even undergoing collision) to collide with the ground and return to its original height exactly conserving energy, as shown in Figure 2. Furthermore, since our method works with any time integration scheme, the user can choose their favorite time integration method with regards to aesthetics and simply apply our method as a post-process to conserve all or as much of the energy as desired.

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Section: Simple Springmentioning

confidence: 99%

Section: Bending Springsmentioning

confidence: 99%

Section: Momentum Conserving Correction Forcesmentioning

confidence: 99%

Section: A Note On Dampingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Energy Conservation for the Simulation of Deformable Bodies

Sheth

Fedkiw

2013

IEEE Trans. Visual. Comput. Graphics

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Interactive mesh deformation with pseudo material effects

Huang¹,

Shi²,

Liu³

et al. 2006

Computer Animation & Virtual

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This paper presents a novel interactive mesh deformation method that can achieve various dynamic material effects, including elastic membrane and cloth effects. In our framework, a mesh is encoded by some differential quantities based on edge length and dihedral angle; and the deformation is formulated as a least square problem for preserving the edge length and dihedral angle via the differential quantities. In order to obtain anisotropic material effects, we further propose an edge-weighting scheme based on a user-specified vector field. To avoid specifying the local transformations, we set up an iterative scheme for solving the deformation. At last, several examples are presented to show that our approach can interactively generate visually pleasing deformations.

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Macroscopic and microscopic deformation coupling in up‐sampled cloth simulation

Saito

Umetani

Morishima

2014

Computer Animation & Virtual

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Various methods of predicting the deformation of fine-scale cloth from coarser resolutions have been explored. However, the influence of fine-scale deformation has not been considered in coarse-scale simulations. Thus, the simulation of highly nonhomogeneous detailed cloth is prone to large errors. We introduce an effective method to simulate cloth made of nonhomogeneous, anisotropic materials. We precompute a macroscopic stiffness that incorporates anisotropy from the microscopic structure, using the deformation computed for each unit strain. At every time step of the simulation, we compute the deformation of coarse meshes using the coarsened stiffness, which saves computational time and add higher-level details constructed by the characteristic displacement of simulated meshes. We demonstrate that anisotropic and inhomogeneous cloth models can be simulated efficiently using our method.

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Simulation of clothing with folds and wrinkles

Abstract: Clothing is a fundamental part of a character's persona, a key storytelling tool used to convey an intended impression to the audience. Draping, folding, wrinkling, stretching, etc. all

Cited by 244 publications

References 75 publications

Energy Conservation for the Simulation of Deformable Bodies

Energy Conservation for the Simulation of Deformable Bodies

Interactive mesh deformation with pseudo material effects

Macroscopic and microscopic deformation coupling in up‐sampled cloth simulation

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