Modeling and Simulating Bodies and Garments

by Magnenat-Thalmann, Nadia; Bonanni, Ugo (CON); Kasap, Mustafa (CON); Kevelham, Bart (CON); Lim, Mingyu (CON)

• ISBN13: 9781849962629
• ISBN10: 1849962626
• Edition: 1st
• Format: Hardcover
• Copyright: 2010-07-01
• Publisher: Springer-Nature New York Inc

Summary

The book presents all aspects of body and garment modeling for animated virtual humans. It describes how we can define fast and precise human body shapes, either from input dimensions or from body scans, how we can use predefined motions and retarget them, how we can easily create 3D garments from 2D patterns and animate them, and how we can retarget interactively various garment sizes while giving new body dimensions. A case study presents the making of the award winning film ' High Fashion in Equations'. Finally, the book describes how simulation processes can be applied to the garment industry and how we interact with an online platform for virtual clothing. This book is truly interdisciplinary as it describes the technical concepts as well as the design aspects and the problems of the clothing industry to be solved today.

Table of Contents

Modeling Bodies	p. 1
Introduction	p. 1
Geometric Modeling	p. 2
Basic Geometric Deformations	p. 3
Free From Deformation	p. 4
Physically Based Modeling	p. 12
Anatomic and Anthropometric Body Modeling Techniques	p. 13
Data Acquisition	p. 24
Data Acquisition and Reconstruction Pipeline	p. 25
Data Resolution and Data Format	p. 27
Scan Data Based Modeling Approaches	p. 28
References	p. 29
Character Based Adaptation	p. 31
Introduction	p. 31
Character Animation	p. 31
Previous Works	p. 33
A Footskate Removal Method for Simplified Characters	p. 35
Feet Motion Analysis	p. 36
Root Translation Correction	p. 38
Horizontal Correction	p. 38
Vertical Correction	p. 40
Character Movements Adaptation	p. 42
Introduction	p. 42
Skeleton Design	p. 44
Arms Adaptation	p. 49
Legs Adaptation	p. 53
General Purpose Collisions Removal	p. 55
Balance Correction	p. 55
References	p. 68
Cloth Modeling and Simulation	p. 71
A Brief History on Garment Simulation	p. 71
Measuring Physical Parameters	p. 75
Introduction	p. 75
The Concept of Fabric Hand	p. 75
Fabric Drape	p. 89
Mechanical and Physical Fabric Properties in Virtual Simulation Systems	p. 91
Physical Simulation of Cloth	p. 92
Introduction	p. 92
Physical Properties of Cloth Materials	p. 93
Simulation Models	p. 95
A Simple Method for Accurate Simulation of Nonlinear Cloth Materials	p. 99
Numerical Integration	p. 103
Collision Processing	p. 106
Real-Time Garment Animation	p. 112
Touching Virtual Textiles	p. 115
Haptic Interaction with Virtual Textiles: The Problems to Solve	p. 116
The Sense of Touch	p. 118
Rendering Touch Signals	p. 120
Haptic Interfaces	p. 123
The EU Project HAPTEX: Concepts and Solutions	p. 128
References	p. 132
Designing and Animating Patterns and Clothes	p. 139
Introduction	p. 139
Pattern Design	p. 140
Digitalization	p. 140
Import from CAD Software	p. 140
Extraction of the Outer Shell Pattern Pieces	p. 141
Pattern Placement	p. 142
Seaming	p. 143
Fabric Properties	p. 143
Garment Fitting	p. 144
Comparison of Real and Virtual Fitting Processes	p. 145
Physical Precision of the Simulation Result	p. 147
The Making of the Award Winning Film: High Fashion in Equations	p. 149
Introduction	p. 149
Robert Piguet	p. 150
Inspiration	p. 151
Design and Implementation	p. 152
Result	p. 158
References	p. 159
Virtual Prototyping and Collaboration in the Clothing Industry	p. 161
Introduction	p. 161
The New Market Trend	p. 163
Virtual Prototyping of Garments	p. 163
Current Design and Manufacturing Paradigms	p. 164
Current Online Garment Customization	p. 166
MIRALab's Virtual Try On	p. 167
Collaboration in Virtual Clothing	p. 171
Distinction Between PDM and PLM	p. 171
PDM/PLM in the Apparel Industry: Current Solutions/Examples and Their Benefits	p. 173
Future Challenge: Co-design	p. 173
Towards a Co-design Virtual Garments Platform	p. 174
Related Work	p. 175
Design Considerations	p. 177
Communication Architecture	p. 177
User Membership Management	p. 179
Content Transmission Scheme	p. 180
Event Management	p. 181
Proposed Architecture	p. 181
Overall Architecture	p. 182
References	p. 185
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