๐Ÿ† CHI '18 - Best Paper Award

Agile 3D sketching with air scaffolding

Yongkwan Kim

Sang-Gyun An

Joon Hyub Lee

Seok-Hyung Bae

[PDF]

Hand motion and pen drawing can be intuitive and expressive input for professional digital 3D authoring. However, inherent limitations of each have hampered wider adoption. 3D sketching using hand motion is rapid but rough, and 3D sketching using pen drawing is delicate but tedious. Our new 3D sketching workflow combines these two in a complementary manner. The user makes quick hand motions in the air to generate approximate 3D shapes, and uses them as scaffolds on which to add details using pen-based 3D sketching on a tablet device. Our air scaffolding technique and corresponding algorithm extract only the intended shapes from unconstrained hand motions. Then the user sketches 3D ideas by defining sketching planes on these scaffolding shapes, while appending new scaffolds as needed. A user study shows our progressive and iterative workflow enables more agile 3D sketching compared to one using either hand motion or pen drawing alone.

Keywords: Hand motion; pen drawing; 3D sketching

A 30-second preview

A 3-minute walkthrough

A 20-minute presentation

Presentation and demo at CHI '18, Montrรฉal, Canada

See more from the worldwide coverage (selected):

KAIST develops VR platform for 3D sketching in thin air (2018, 3D Printing Industry)

3-D sketching with air scaffolding (2018, Phys.org)

Watch How to 3D Sketch with Air (2018, Electronics 360)

VR Helps Designers Magically Sketch 3D Models (2018, TUN)

It's time to '3D sketch' your ideas with air scaffolding (2018, KAIST)

ํš๊ธฐ์ ์ธ 3D ์Šค์ผ€์น˜ ํ”Œ๋žซํผ ๊ฐœ๋ฐœ (2018, KBS Daejeon)

'์†์œผ๋กœ ํœ™ํœ™ ํ•˜๋ฉด' ๋จธ๋ฆฟ์† ์ƒ์ƒ์ด ํ˜„์‹ค๋กœ ๊ตฌํ˜„ (2018, TJB)

3D ์Šค์ผ€์นญ, ๋””์ž์ธ ๊ณผ์ • ํš๊ธฐ์ ์œผ๋กœ ๋‹จ์ถ• (2018, YTN)

๊ตญ๋‚ด ์‹ ๋ฌธ ๋ณด๋„ ํ†ตํ•ฉ (2018, 3 presses)

๊ตญ๋‚ด ์˜จ๋ผ์ธ ๋ณด๋„ ํ†ตํ•ฉ (2018, 19 presses)

People

Seok-Hyung Bae

Associate professor

Yongkwan Kim

Postdoctoral researcher

Joon Hyub Lee

Ph.D. student

Sang-Gyun An

Ph.D. student

Awards

๐Ÿ† CHI '18 Best Paper Award

Agile 3D Sketching with Air Scaffolding

Yongkwan Kim, Sang-Gyun An, Joon Hyub Lee, and Seok-Hyung Bae

Department of Industrial Design, KAIST
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