🏆 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

30 sec. preview

3 min. walkthrough

20 min. presentation

Presentation and demo at CHI '18, Montréal, 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)

획기적인 3D 스케치 플랫폼 개발 (2018, KBS Daejeon)

'손으로 휙휙 하면' 머릿속 상상이 현실로 구현 (2018, TJB)

3D 스케칭, 디자인 과정 획기적으로 단축 (2018, YTN)

국내 신문 보도 통합 (2018, 3 presses)

국내 온라인 보도 통합 (2018, 19 presses)