ARCADE/Studierstube  In cooperation with: Fraunhofer IGD, Darmstadt, Germany Contact: André Stork (IGD), Dieter Schmalstieg (TUW)
Description	Large stereoscopic back-projection systems such as the Virtual Table are currently in use by major cooperations from the automotive and aircraft industry worldwide for the display of their VR applications systems. The interaction with such a setup is still mostly limited to camera movement and very simple object manipulation. The resulting exclusive use for design review does not exploit the full potential of the Virtual Table
Approach	To overcome the limited applications for the Virtual Table, we integrated the Studierstube augmented reality software from TUW with IGD's ARCADE, the Advanced Realism CAD Environment. The resulting system allows for intuitive, seamless taslk fulfillment in design applications.
Publications	L. M. Encarnação, A. Stork, D. Schmalstieg, R. Barton III:  The Virtual Table - A Future CAD Workspace. Proceedings of Computer Technology Solutions conference (former Autofact), Michigan, Detroit, USA, September 13-19, 1999.

Hardware configuration

The unique use of transparent props for interaction with the virtual table enables intuitive working in three dimensions with both hands.

Some results...

Basic gesture based interaction
	"Walk-up VR" The ARCADE/Studierstube on the Virtual Table allows convenient "Walk-up VR" without the hassle of fully immersing a user into a computer-generated environment.
	Parameter Change. Interactively changing the height of a cube by performing a scale gesture.
	Translation along edge Constrained translation of an object around one of its edges
	Translation in plane Constrained translation about the plane defined by one of the object's faces
	Rotation around edge Constrained rotation of the sample cube around one of its edges..
Object Creation
	Implicit boolean operation Convenient modeling can be performed using boolean operations on volumes.
	Coons Patch Creation of a coons patch by sweeping it out with the pen.
	Mirrored Coons Patch Same as above, but with using the pad as a mirror plane to make the patch symmetric.
	Net Surface A convenient way to create free-form surfaces is through sketching net surfaces.
	Skinning Surface Construction of a skinning surface.
	Mirrored Skinning Surface Same as above, but symmetric by using the pad to define a mirror plane..
Special operations
	Subtractive Sweep Subtracting from a volume with sweep operation.
	Change of a boolean operation picked from history The parameters of a boolean operation are picked from the editing history and modified with the pen.
	Pick and copy from history A boolean operation is picked from the editing history.
	Trimming Trimming a free-form surface using the pen as a "light saber".

This page is maintained by Dieter Schmalstieg. It was last updated on June 30, 2000.
If you have any comments, please send a message to dieter@cg.tuwien.ac.at.