RoundTable

A round table with a circular projection screen in the mid-dle is used to display a floor plan of the game show environment. The image on the table-screen is rear-projected. The projection screen has a diameter of 80 cm, table height is 95 cm. On a second projection screen next to the table, a 3D rendered scene can be displayed from the perspective of the deployed camera. Alternatively, the camera view, as well as the TX view, can be shown on additional monitors.

 

The RoundTable in this application is embedded in a room sized environment. The user is manipulating a camera phicon (triangle shaped object). The camera view of the manipulated virtual camera is displayed on a projection surface next to the table. Other feedback mechanisms, like using additional monitors, are also possible. The projection on the table display the inhabitants and activity maps of the virtual world.

 

 

 

 

 

 

 

 

 

 

For this "second" application we ported one piece of the CD-ROM "Small Fish" that has been created by Kiyoshi Furukawa, Masaki Fujihata and Wolfgang Münch at the ZKM in Karlsruhe, Germany, to the RoundTable. Small Fish allows the user to manipulate a predefined set of musical algorithms, that stipulate what kind of relationships between visual graphics and musical time exist and how the player is able to influence the sounds via the screen. As a CD-ROM, Small Fish uses a traditional interface with mouse. Here, the interface allowed three users to simultaneously interact with the system.

 

Music is generated by producing a Midi stream of notes that gets influenced by the position of smaller circular objects that stick to the larger graphical objects. By moving the larger objects, the user can "catch" or remove the small objects from other objects. Another two small circular objects are special, they move around autonomously, touching the smaller objects in a predefined order. Whenever they touch a small (blue) objects a Midi note is produces. Tone and the note itself is stipulated by the y-position of the "collision" (i.e. from lower left top upper right in figure 1 b). Hence, notes and speed can be stipulated by the user by modifying the position of the objects in y-direction and spatially arranging the objects on the 2D display surface.