This paper presents a direct 3D painting algorithm for polygonal models in 3D object-space with a metaball-based paintbrush
in virtual environment. The user is allowed to directly manipulate the parameters used to shade the surface of the 3D shape
by applying the pigment to its surface with direct 3D manipulation through a 3D flying mouse.
Keywords painting - direct 3D manipulation - configuration space - metaball
This work is supported by National Natural Science Foundation of China.
WAN Huagen got his Ph.D. degree from Zhejiang University (ZJU) in 1999. His research interests include physics based modeling, computer
animation and solid modeling in virtual environment.
JIN Xiaogang got his Ph.D. degree from ZJU in 1995 and is currently an Associate Professor at the State Key Lab. of CAD&CG, ZJU. His research
interests include computer animation, implicit surface modeling and realistic image synthesis.
BAO Hujun is currently a Professor at the State Key Lab. of CAD&CG, ZJU. He got his B.S., M.S. and Ph.D. degrees from ZJU in 1987,
1990 and 1993, respectively. His research interests include realistic image syntheis, computer animation and virtual reality.
He has published more than 40 papers.