Abstract
3D-drawing technique is a key technique in various fields such as not only engineering design but also entertainment industry. However, most of traditional systems are recommended for virtual space separated from real space where users exist, so drawing techniques in the real world and display techniques for 3D drawing expression aren't discussed sufficiently. If it is possible that a drawing space is expanded from desktop PC to real world in order to draw using whole bodily action, range of expression might be extensible further and it lead to the creation of a new idea. So as to test the possibility of 3D drawing in real world, we developed the portable 3D-drawing system. In addition, we devised some display techniques for 3D-drawing expression, and considered the effect of each technique.
