dAb Interactive Haptic Painting with 3D Virtual Brushes

dAb:
Interactive Haptic Painting with 3D Virtual Brushes

Capturing the sight, touch, action, and feeling of painting

Outline
Paper
Highlights / Abstract
Images Created with dAb
Screen Shots
Video
Artists
Sponsors
Related Websites

Contributers
graduate students:
William Baxter
Vincent Scheib
faculty:
Ming Lin
Dinesh Manocha

Paper

Citation:

W. Baxter, V. Scheib, M. Lin, and D. Manocha. "DAB: Interactive Haptic Painting with 3D Virtual Brushes". In Proceedings of ACM SIGGRAPH 01, August 2001, pp. 461-468.
(BibTeX)
ACM Entry

Downloads:

dab.pdf	10MB	Press quality
dabsmall.pdf	0.2MB	Reduced resolution images
slides.zip	11MB	Siggraph talk slides (powerpoint, shockwave-flash)
appendix.pdf		Appendix

Highlights

Interactive use of a physically based paint brush & paint model with haptic feedback

Natural interface via simulation of traditional artists’ tools rather than complex user interface

Abstract

Motivation

Recent advances in computer graphics have made progress with reproducing the look of painting. This project explores the benefits of recreating the "sight, touch, action and feeling" of the artistic process itself.

The system, dAb, provides the user with the traditional tools of a painter. This setting, conceptually equivalent to a real world painting environment, allows anyone to control a virtual brush as he or she would a real brush.

To achieve this, we have designed a physically-based, deformable, 3D brush model and bi-directional, two-layer, paint model. These allow the user to produce complex brush strokes intuitively. The haptic feedback enhances the sense of realism and provides tactile cues that enable the user to better manipulate the paint brush.

Brush Model

We model the brush head as a subdivision surface mesh wrapped around a spring-mass particle system skeleton. The particle system reproduces the basic motion and behavior of a brush head, while the deformable mesh skinned around this skeleton represents the actual shape of the head.

Paint Model

Complementing our expressive brushes, we present a paint model capable of capturing complex effects interactively. Our paint model incorporates variable wetness & opacity, conservation of volume, and a hardware-accelerated bi-directional paint transfer algorithm. It supports the following operations and techniques expected from acrylic or oil painting: blending, bi-directional transfer, complex brush loading, variable dryness, glazing, and impasto.