CoolPaint: Direct Interaction Painting
Author(s): Dustin Lang, Leih Findlater, Michael Shaver.
Proceedings: Proceedings of the 16th Annual ACM Symposium on User Interface Software and Technology (UIST), Vancouver, Canada,
2003.
[BibTeX] 
Abstract:
We present CoolPaint, a system for computer painting that
uses a props-based direct interaction technique. By instrumenting
real paint brushes and developing corresponding
digital models of the brushes, we allow the user to control
digital tools by directly manipulating their physical counterparts.
In addition, we use a tabletop display which allows
the display space and interaction space to be unified. The
painter picks up a real paint brush, dabs it in ‘paint’, and
makes a brush stroke across the canvas. Digital paint immediately
appears on the canvas, directly under the brush, with
exactly the brush stroke the painter expects. The result is
an intuitive, expressive, and fun painting experience.