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3D Knitting from a 3D Computer Model

Yuki Igarashi, Takeo Igarashi and Hiromasa Suzuki already published in 2008 a way to convert 3D models into knitting models in their presentation in Japanese "3次元モデルからのあみぐるみ生成 - 五十嵐 悠紀,五十嵐 健夫,鈴木 宏".

Video in Japanese: http://youtu.be/xJyZ3XQkrh4

A knitted animal is made of a closed surface consisting of several knitted patches knitted out of yarn and stuffed with cotton. We introduce a system to create a knitting pattern from a given 3D surface model (mainly designed for rotund animal models). A knitting pattern is an instructional diagram describing how to knit yarn to obtain a desired shape. Since the creation of knitting patterns requires special skill, this is difficult for nonprofessionals. Our system automates the process and allows anyone to obtain his or her original knitting patterns from a 3D model. The system first covers the surface of the model with parallel winding strips of constant width. The system then samples the strip at constant intervals to convert it into a knitting pattern. The result is presented in a standard visual format so that the user can easily refer it during actual knitting. We show several examples of knitted animals created using the system.

Computer Graphics Forum - 3D knitting
3D Knitting in Pacific Graphics 2009

3D Kniting - Horse Knits
3D Computer Rendering and Knitting implementation

3D Knitting - Examples
3D Knitting Examples

“あみぐるみ”は閉じた面の内部に綿を詰めることで作られている.本論文では, 3 次元サーフェスモデルからあみぐるみを作成するための編み図を生成するシステムを紹介する.編み図はどのように編んでいくかを記号化したものであるが, 編み図をデザインすることは素人には難しく, スキルをもった専門家がデザインしている.本システムではその過程を自動化し,誰でも簡単に3 次元モデルから編み図を生成することができる. 本システムは3 次元モデルへ等幅のストリップを巻きつけ, 得られたストリップを等幅でサンプリングすることで,編み図へと変換する. 編み図は通常用いられているフォーマットで出力され,誰でも簡単に編み図からあみぐるみを作成できる. 本システムを利用して作成したあみぐるみを紹介する.

Yuki IGARASHI - 3D Knitting Expert
Yuki IGARASHI - 3D Knitting Expert

Yuki Igarashi, Takeo Igarashi, Hiromasa Suzuki. "Knitting a 3D Model." Computer Graphics Forum (Proceedings of Pacific Graphics 2008), Volume 27, Number 7, pp.1737-1743, ISSN 0167-7055, Tokyo, Japan, Oct. 2008.

五十嵐 悠紀,五十嵐 健夫,鈴木 宏正:「3次元モデルからのあみぐるみ生成」, Visual Computing / グラフィクスとCAD 合同シンポジウム 2008 予稿集 , 東京,2008年6月.

Links:

* http://www.geocities.jp/igarashi_lab/knit/index-e.html

* Yuki IGARASHI: http://www.geocities.jp/igarashi_lab/

[via Steve Conklin]

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2D Patterns and 3D Forms - Sensitive Couture for Interactive Garment Editing and Modeling

This paper about "Sensitive Couture for Interactive Garment Editing and Modeling" is amazing and the source code is available (but not with an Open Source license as far as I can see). It is published at ACM Transaction on Graphics, Proceedings of SIGGRAPH 2011 by Nobuyuki Umetani, Danny M. Kaufman, Takeo Igarashi, and Eitan Grinspun. This is the future of pattern making.

Abstract: We present a novel interactive tool for garment design that enables, for the first time, interactive bidirectional editing between 2D patterns and 3D high-fidelity simulated draped forms. This provides a continuous, interactive, and natural design modality in which 2D and 3D representations are simultaneously visible and seamlessly maintain correspondence. Artists can now interactively edit 2D pattern designs and immediately obtain stable accurate feedback online, thus enabling rapid prototyping and an intuitive understanding of complex drape form.(http://www.cs.columbia.edu/cg/SC/)

2D and 3D Sensitive Couture for Interactive Garment Editing
Original: http://www.cs.columbia.edu/cg/SC/

Links:
* Nobuyuki Umetani
* Danny M. Kaufman
*
Takeo Igarashi
* Eitan Grinspun
* Columbia University
University of Tokyo
* JST ERATO
* Sensitive Couture

[via Patrick Proy]

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