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Cloth

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Cloth
Report by LIANG Cheng
Stitch Meshes for Modeling Knitted Clothing
with Yarn-Level Detail(SIG12)
Cem Yuksely1,2 Jonathan M. Kaldorz1,3 Doug L. James1 Steve Marschner1
1Cornell University 2University of Utah 3Facebook
Two steps
interactive modeling
offline relaxation
Stitch Mesh
Traditional work:
Yarn loop
wale edge
This paper:
Stich polygon
wale edge
course edge
course edge
Different Types
Common
types
Special
types
Details
Mismatched Wale
Direction
Borders
Cables
Interactive Modeling
• Labeling the Input Mesh Model
– labeled as either a wale edge or a course edge
– User select borders as rows and they will be connected as wale edges
• Generating the Stitch Mesh
– Tessellation according to the wale edges and the course edges
• Editing the Stitch Pattern
– Edit the topology and attributes of the stitch mesh such as cables
Offline-Relaxation
stitch mesh model
yarn curves
mesh-based relaxation
yarn-level relaxation
Mesh-based Relaxation
• Use three types of spring forces
– stretch
– shear
– a wale strut
Yarn-level Relaxation
• An anisotropic, biphasic force
• Detection of Yarn Pull-through
– Limit the max movement
– Lod technic
– Compute the safe bounds
Inspiration
• Use “CG” structure present the physical object
• Combine physical and geometry function?
This paper builds the knitwear using stitch
polygon instead of traditional yarn loops. The
result is stunning but the method is too slow.
It implies that we can try some computer
graphics structure to simulate the complex
objects.
33 hours…
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