Direct Drawing on 3D Shapes with Automated Camera Control
Abstract
We present ACCD, an interaction technique that allows di\-rect drawing of long curves on 3D shapes with a tablet display over both multiple depth layers and multiple viewpoints. ACCD reduces the number of explicit viewpoint manipu\-lations by combining self-occlusion management and auto\-mated camera control. As such it enables drawing on oc\-cluded faces but also around a 3D shape while keeping a con\-stant drawing precision. Our experimental results indicates the efficacy of ACCD over conventional techniques.