Desktop environments have proven to be a powerful user interface and are used as the de facto standard human-computer interaction paradigm for over 40 years. However, there is a rising demand on 3D applications dealing with complex datasets, which exceeds the possibilities provided by traditional devices or two-dimensional display. For these domains more immersive and intuitive interfaces are required. But in order to get the users’ acceptance, technology-driven solutions that require inconvenient instrumentation, e.g., stereo glasses or tracked gloves, should be avoided. Autostereoscopic display environments equipped with tracking systems enable users to experience 3D virtual environments more natural without annoying devices, for instance via gestures. However, currently these approaches are only applied for specially designed or adapted applications without universal usability. In this paper we introduce new 3D user interface concepts for such setups where minimal instrumentation ...