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1 – 10 of 538
Article
Publication date: 1 February 2001

Xiaoqun Dai, Takao Furukawa, Shigeru Mitsui, Masayuki Takatera and Yoshio Shimizu

Drape is a characteristic behaviour of flexible cloth, so it is important in modelling cloth. The paper introduces a novel method to model drape using a few shape parameters…

Abstract

Drape is a characteristic behaviour of flexible cloth, so it is important in modelling cloth. The paper introduces a novel method to model drape using a few shape parameters, predicted according to the pattern structure and mechanical properties of cloth. The technique is used to visualize the 3‐D drapeability of cloth and is then extended to simulation of a skirt. The general shape of a flared skirt of large deformation is predicted based on several shape parameters. Moreover, the constructed skirt model is used as pre‐draped initial shape for the popular physically‐based model – particle system. Kawabata Evaluation System (KES) plots of cloth are applied for accurate mechanical calculation. The simulated results show good agreement with actual cloth materials.

Details

International Journal of Clothing Science and Technology, vol. 13 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 12 June 2009

In Hwan Sul

The purpose of this paper is to determine the possibility of implementing parallel processing feature of graphic processor unit (GPU) in garment drape simulation.

Abstract

Purpose

The purpose of this paper is to determine the possibility of implementing parallel processing feature of graphic processor unit (GPU) in garment drape simulation.

Design/methodology/approach

Velocity‐Verlet method based on explicit integration is used to drape triangular table cloth meshes. Both drape simulation and collision detection engines are converted to GPU version. Simulation speeds of simple linear algebra and actual free fall table cloth simulation are compared with those of the central processing unit (CPU) version.

Findings

There is apparent calculation speed increase when the parallel computation of GPU is implemented. But the current GPUs have several limits for general purpose computation, so the original CPU version algorithm should be split and modified to be used in GPU.

Originality/value

This paper implemented GPU parallel processing technique in both drape simulation and collision detection. Voxel‐based method is used to find possible collision pairs. Triangular meshes, which are more difficult to implement than quadrilateral ones in GPU programming, are successfully implemented.

Details

International Journal of Clothing Science and Technology, vol. 21 no. 4
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 August 1996

Donald H. House, Richard W. DeVaul and David E. Breen

Reviews a new approach being developed for modelling the dynamic behaviour of cloth. This work extends the cloth‐particle static draping model of Breen and House to include…

Abstract

Reviews a new approach being developed for modelling the dynamic behaviour of cloth. This work extends the cloth‐particle static draping model of Breen and House to include dynamics, and extends constrained dynamics simulation techniques developed by Witkin, Gleicher and Welch to yield performance enhancements. Fundamental to this approach is a new hierarchical approximation algorithm for constrained dynamics simulation which, it is hoped, will reduce the computational time demands of the algorithm to near real‐time range.

Details

International Journal of Clothing Science and Technology, vol. 8 no. 3
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 February 2005

H.W. Zhang, M. Wang, X.W. Zhang and X. Guo

An improved mathematical programming method for numerical simulation of cloth wrinkling is investigated.

Abstract

Purpose

An improved mathematical programming method for numerical simulation of cloth wrinkling is investigated.

Design/methodology/approach

Cloth is modeled as the network of bars (called bar network) or membrane elements with a special nonlinear mechanical constitutive law in the finite element analysis.

Findings

Compared with conventional numerical methods, the proposed method does not depend on stress iteration, but on the base exchanges in the solution of a standard quadratic programming problem. Thus, the new method presents very good convergence behavior and accurate predictions of wrinkling patterns and stress distributions of cloths. Numerical results demonstrate the validity and the efficiency of the proposed method.

Originality/value

From the engineering point of view, accurate numerical methods are required in wrinkling analysis of cloth deformation. The algorithm developed here also can be applied into fields such as large deformation under wind load and dynamic behaviors of cloths.

Details

International Journal of Clothing Science and Technology, vol. 17 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 August 1996

Haruki Imaoka and J. Atkinson

Gives an overview of the technique of current garment simulation and of the problems for more advanced simulation. To simulate the behaviour of a garment, three important models…

585

Abstract

Gives an overview of the technique of current garment simulation and of the problems for more advanced simulation. To simulate the behaviour of a garment, three important models are usually used. They are: a garment model, a human body and an environment model. The models and the interaction among them are discussed using the conceptual‐mathematical‐posed problem structure of a model proposed by Barzel (1992).

Details

International Journal of Clothing Science and Technology, vol. 8 no. 3
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 August 1996

J. Ascough, H.E. Bez and A.M. Bricis

Uses Newmark’s method to carry out a time‐stepping finite element analysis to predict the behaviour of a cloth garment as it falls from an initial horizontal position to a final…

Abstract

Uses Newmark’s method to carry out a time‐stepping finite element analysis to predict the behaviour of a cloth garment as it falls from an initial horizontal position to a final position draped around a human body form. Bases the finite element model on a simple beam element, in order to minimize the computational time. Accounts for large displacement behaviour by including the element geometric stiffness. Bases the body form on anthropomorphic data produced by a shadow scanner. Enlists a novel scheme to model the contact between the cloth and the underlying body form. Uses the finite element model to provide data for an animated display and finds that it produces sufficiently realistic results for the garment designer’s purposes.

Details

International Journal of Clothing Science and Technology, vol. 8 no. 3
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 5 September 2016

Vajiha Mozafary and Pedram Payvandy

The purpose of this paper is to conduct a survey on research in fabric and cloth simulation using mass spring model. Also in this paper some of the common methods in process of…

Abstract

Purpose

The purpose of this paper is to conduct a survey on research in fabric and cloth simulation using mass spring model. Also in this paper some of the common methods in process of fabric simulation in mass spring model are discussed and compared.

Design/methodology/approach

This paper reviews and compares presented mesh types in mass spring model, forces applied on model, super elastic effect and ways to settle the super elasticity problem, numerical integration methods for solving equations, collision detection and its response. Some of common methods in fabric simulation are compared to each other. And by using examples of fabric simulation, advantages and limitations of each technique are mentioned.

Findings

Mass spring method is a fast and flexible technique with high ability to simulate fabric behavior in real time with different environmental conditions. Mass spring model has more accuracy than geometrical models and also it is faster than other physical modeling.

Originality/value

In the edge of digital, fabric simulation technology has been considered into many fields. 3D fabric simulation is complex and its implementation requires knowledge in different fields such as textile engineering, computer engineering and mechanical engineering. Several methods have been presented for fabric simulation such as physical and geometrical models. Mass spring model, the typical physically based method, is one of the methods for fabric simulation which widely considered by researchers.

Details

International Journal of Clothing Science and Technology, vol. 28 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 15 June 2010

In Hwan Sul

The purpose of this paper is to develop a new and simple methodology for fabric collision detection and response.

Abstract

Purpose

The purpose of this paper is to develop a new and simple methodology for fabric collision detection and response.

Design/methodology/approach

A 3D triangle‐to‐triangle collision problem was converted to simple 2D point‐in‐triangle problem using pre‐computed 4×4 transformation matrices. The object space was partitioned using voxels to find easily collision pair triangles. k‐DOP was used to find inter‐pattern collisions.

Findings

Complex 3D collision detection problem is solved by simple matrix operations. Voxel‐based space partitioning and k‐DOP‐based hierarchical methods are successfully applied to garment simulation.

Originality/value

This paper shows that the collision matrix method can cover from triangle‐to‐point to triangle‐to‐triangle collision with mathematical validity and can be simply implemented in garment simulation.

Details

International Journal of Clothing Science and Technology, vol. 22 no. 2/3
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 February 2005

Vasily Volkov and Ling Li

Significant progress has been achieved over the last decade in the realistic animation of garments. However it is still a very costly process in terms of computational resources…

Abstract

Significant progress has been achieved over the last decade in the realistic animation of garments. However it is still a very costly process in terms of computational resources. Since wrinkles and vast smooth areas co-exist commonly, it is tempting to reduce computational cost by avoiding redundant tessellation at the smooth areas. In this paper we present a method for dynamic adaptation of triangular meshes suitable for the most elaborated cloth simulation approaches, such as finite-element based or alike. We use bottom-up approach to mesh refinement, which does not require precomputation and storage of multiresolution hierarchy. The hierarchy is constructed in runtime using √3-refinement rule. The hierarchy is essential to allow reverting of the refinement locally. Local mesh refinement and simplification are triggered by curvature-induced criterion, where the curvature is estimated using methods of discrete differential geometry. In the existing literature of adaptive meshes only the formulas for estimating the discrete mean curvature at the inner mesh vertices can be found. We extend it to the triangulated 2-manifolds with boundary, such as cloth meshes. The results demonstrated are the realistic animation of garment worn by a walking mannequin generated with Baraff-Witkin type cloth solver enhanced with our mesh adaptation scheme.

Details

Research Journal of Textile and Apparel, vol. 9 no. 1
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 4 May 2020

Guangzhou Zhu and Wenfang Song

The paper presents a method for the patterns simulation in the 3D virtual stitching and try-on system.

277

Abstract

Purpose

The paper presents a method for the patterns simulation in the 3D virtual stitching and try-on system.

Design/methodology/approach

First, the patterns are designed using the garment CAD software and stored in the DXF format. Second, the regular grid method is employed to mesh the patterns to be quadrangular, and the patterns triangular meshing can be obtained by connecting the diagonal of the quadrangular. Then a mass-spring model is established, and the forces analysis and the explicit Euler integration method are employed to accomplish the patterns simulation. The paper demonstrates the robustness of our simulation through two sets of experiments, including a lady’s dress patterns meshing experiments and the experiments of the virtual stitching of the lady’s dress.

Findings

The patterns meshing algorithm can meet the requirements of the internal meshing and the boundary meshing, and it is very important to select an appropriate meshing density. The implementation of the virtual stitching of the lady’s dress proves the effectiveness and usability of the simulation methods.

Research limitations/implications

The lady’s dress used in the experiments is a relatively simple fashion style, with only the front and back pattern. It is very worthy of further research on the effectiveness of the complex structure of clothing.

Practical implications

The paper includes practical implications of the methods of the patterns meshing and the virtual stitching of the simple fashion styles.

Originality/value

The simulation system is developed using VC++ 2015 with the help of the OpenGL functions library, which is proved as a simple, lower computation and robustness for the patterns simulation of the simple garments.

Details

International Journal of Clothing Science and Technology, vol. 32 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

1 – 10 of 538