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Development of an interactive 3D apparel CAD system based on drape simulation and virtual mesh scissoring

서울대학교 대학원
Publication Date
  • 드레이프
  • Drape Simulation
  • 파티클 법
  • Particle Based Method
  • 삼각형 메쉬
  • Triangular Mesh Generation
  • 3차원 어패럴 캐드
  • 3D Apparel Cad
  • 가상 가위질
  • Virtual Cutting
  • 가상 커팅
  • Virtual Scissoring
  • Gpu 연산
  • Gpu Programming
  • 가상 캣웍
  • Virtual Cat Walk
  • Computer Science
  • Design
  • Engineering


Researches on automatic design of garment patterns had been concentrated in drape simulation not because it was the main theme itself but because it was an obstacle to main research theme. But current development of hardwares and intensive researches on drape modules, stable but slow drape simulation is possible on personal computers. Therefore the research of 3D apparel CAD system has new era for pattern design. Previous pattern generation algorithms tried to seek automatic generation method of patterns and they could not get high quality of pattern because pattern generation belongs not to engineering but to artistic area. This research proposes new pattern generation algorithm ¡®virtual cutting¡¯ which simulates real pattern designer¡¯s method in computer environment. The new method does not include pattern flattening process which results into undesirable dart line and residual strain on pattern mesh. Virtual cutting puts initial pattern on dummy by freefall drape simulation and cut both 3D and 2D mesh simultaneously by editing mesh information directly. To enable virtual cutting algorithm, stable mesh generation should be resolved first. 2D Mesh generation is used not only for preparation of cloth mesh data but also for regeneration of cut area in virtual cutting process. Delaunay triangulation was used as basis criterion for triangulation and even angle 0 dart was also treated . As fabric patterns have severe boundary shapes, inner holes and darts, stable mesh generation is a critical problem. Various examples of triangulation were demonstrated in the paper. Not only pattern data but also body mesh data are needed for drape simulation. A new parametric body was devised to include real scanned human body information and enable lengthwise, volumetric and pose change possible. The new parametric body is deformed by sphere groups and once human body data is converted to parametric, other sizes or poses can be simply made by varying body part parameters. To get param

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