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4 EVALUATION
We interviewed four experts from the broadcasting in-
dustry regarding the different ways to present a virtual
reality application to a broader audience. All rank
the different view modalities nearly equally impor-
tant: Egocentric (first person) view, exocentric view
of how a person is using the HMD, exocentric view
within a virtual scene. All agree that it is necessary to
show egocentric and exocentric perspectives together.
One expert commented that it is important to be able
to observe the interaction not only from the actor’s
point of view but also from a distance. A sense of
space in time is crucial for film making. Another ex-
pert stated that the personal experience of the actor
is an important emotional feedback. If we can no-
tice how and why the protagonist is acting in a cer-
tain way, we have a chance to enact actions like in a
film-plot. All experts agree that is important to use a
camera with zoom and focus during production. Half
of the experts think that the produced video is better
than other videos that do not show the users within the
virtual environment. All experts felt immersed while
watching the produced video.
5 CONCLUSIONS
We introduced and discussed different implementa-
tions of virtual studio productions for virtual reality
applications. For achieving best quality and free stu-
dio camera use, the standard interface as well as the
rendering process must be extended. Most important
missing parameter for the rendering process is a vari-
able field of view, provided by a camera tracking sys-
tem, but others cannot be neglected either. If this be-
comes standard, then it will be easy to bring any vir-
tual reality application into a virtual studio without
additional modifications. Showing persons’ interac-
tions using VR devices is not only instructive, but also
empathic (i.e. conveying user emotions).
ACKNOWLEDGEMENTS
Bianca Herder and Ida Kiefer contributed as presen-
ters. Vizrt Austria GmbH supported this project by
providing the viz tracking hub software. The produc-
tion took place at vr3 / Voss GmbH TV Ateliers,
where Dirk Konopatzki and Jochen Schreiber were
very helpful. Thanks belong to Christopher Freytag
and Antje M
¨
uller for getting the studio equipment
running. First experiments with the custom camera
adapter were done with Thomas St
¨
utz and his class at
the FH Salzburg.
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