.
Drawing with the Hand in Free Space
Author(s): Steven Schkolne, Michael Pruett, Peter Schröder.
Article: Leonardo, August,
2002.
[BibTeX] 
Abstract:
This article presents a new medium in which organic surfaces are drawn in 3d space with the hand. Additional tools move and deform the shape. Special interface hardware includes a head-tracked stereoscopic display and sensors which track the body and handheld tools, allowing the artist to share the space of the artwork. This method provides a fluid, unstructured access to 3d, ideal for quick, spontaneous ideation and investigation of complex structure.
Surface Drawing
Steven Schkolne, Peter Schröder.
Caltech Department of Computer Science, No. CS-TR-99-03,
1999. [BibTeX]
Surface Drawing: Creating Organic 3D Shapes with the Hand and Tangible Tools
Steven Schkolne, Michael Pruett, Peter Schröder.
CHI 01,
2001. [BibTeX]