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Michael Glueck, Sean Anderson, Azam Khan
Symposium on Simulation for Architecture and Urban Design
We present the DeskCube, a new passive input device, together with a space-division scheme using physical above-the-surface zones to select and control the desired 3D navigation operations that gives users simple scene-in-hand control over the virtual 3D world.
Buildings are the largest consumers of energy responsible for 48% of all Green House Gas (GHG) emissions. Due to the complexity and multidisciplinary aspects of architectural design, construction, urban design, and building occupant behavior, simulation has gained attention as a means of addressing this enormous challenge. The idea is to model a building’s many interacting subsystems, including its occupants, electrical equipment, and indoor and outdoor climate. With simulation results in hand, an architect is better able to predict the energy demand associated with various designs, and choose from among the more sustainable options.
While advances in computing have empowered users to design and interact with objects in virtual three-dimensional space, little effort has been made to improve or facilitate interaction with the viewpoint. Once we begin to consider this problem, we find that it effectively spans a huge problem domain with many special cases. It touches on many of the fundamental difficulties in 3D interaction: being inside an object vs. being outside, how close is the viewpoint to the object, what is the user looking at and/or is interested in, egocentric vs. exocentric thinking, parallel vs. perspective viewing projections, multiscale and level-of-detail issues, what kind of data is being examined (abstract, incomplete, photoreal, engineering, CAD, entertainment, medical, simulation, etc.), and what is the user task (authoring, inspecting, etc.). Additional technical issues include correct handling of the clipping planes and floating-point precision problems. To help understand and address some of these issues, we have an ongoing research program to improve the state-of-the-art in 3D navigation.
Designing user interfaces for interacting with 3D data involves a number of factors that are not found in traditional 2D interfaces. In this project, we explore subtle yet critical aspects of 3D control and feedback. A number of research outcomes have been integrated into several Autodesk products and we continue to explore this complex area.