Dev, KapilVillar, NicolasLau, ManfredYotam Gingold and Ergun Akleman2016-05-042016-05-042016978-3-03868-001-71812-3503https://doi.org/10.2312/exp.20161068There exists interfaces for 3D modeling that go beyond traditional keyboard and mouse input techniques. This paper takes a first-person paradigm of 3D modeling where a designer actively employs different body parts as part of the user interface. Specifically, we explore the body parts and corresponding gestures that users prefer for various primitive 3D shape creation and 3D manipulation tasks. Also, we investigate how virtual primitive shapes and physical primitive objects augment gestures and affect user preferences when modeling 3D shapes. The results from our study provide suggestions to guide the design of interfaces using different body parts and gestures for first-person 3D modeling.H.5.2 [Information Interfaces and Presentation]User InterfacesInteraction stylesI.3.5 [Computer Graphics]Computational Geometry and Object ModelingModeling packages10.2312/exp.2016106897-102