Xu Xinchi, Zhou Yang, Shao Bingchan, Feng Guihuan, Yu Chun
IEEE Trans Vis Comput Graph. 2023 May;29(5):2499-2507. doi: 10.1109/TVCG.2023.3247059. Epub 2023 Mar 29.
3D sketching in virtual reality (VR) provides an immersive drawing experience for designs. However, due to the lack of depth perception cues in VR, scaffolding surfaces that constrain strokes to 2D are usually used as visual guides to reduce the difficulty of drawing accurate strokes. When the dominant hand is occupied by the pen tool, the efficiency of scaffolding-based sketching can be improved by using gesture input to reduce the idleness of the non-dominant hand. This paper presents GestureSurface, a bi-manual interface that uses non-dominant hand performing gestures to operate scaffolding and the other hand drawing with controller. We designed a set of non-dominant gestures to create and manipulate scaffolding surfaces, which are assembled by automatic combination based on five predefined primitive surfaces. We evaluated GestureSurface through a 20-person user study and found that the method of scaffolding-based sketching using non-dominant hand has the advantages of high efficiency and low fatigue.
虚拟现实（VR）中的3D草图绘制为设计提供了沉浸式的绘图体验。然而，由于VR中缺乏深度感知线索，通常使用将笔触限制在二维的脚手架表面作为视觉引导，以降低绘制精确笔触的难度。当主导手被笔工具占用时，通过使用手势输入来减少非主导手的闲置时间，可以提高基于脚手架的草图绘制效率。本文介绍了GestureSurface，这是一种双手界面，它使用非主导手执行手势来操作脚手架，另一只手使用控制器进行绘图。我们设计了一组非主导手势来创建和操作脚手架表面，这些表面由基于五个预定义原始表面的自动组合组装而成。我们通过一项20人的用户研究对GestureSurface进行了评估，发现使用非主导手进行基于脚手架的草图绘制方法具有高效率和低疲劳度的优点。
