Presence in response to dynamic visual realism: a preliminary report of an experiment study

This paper describes an experiment that examines the influence of visual realism on reported presence. 33 participants experienced two different renderings of a virtual environment that depicts a pit in the centre of a room, in a head-tracked head-mounted display. The environment was rendered using parallel ray tracing at 15fps,mbut in one condition ray casting (RC) was used achieving a result equivalent to OpenGL based per-pixel local illumination, and in the second full recursive ray tracing (RT). The participants were randomly allocated to two groups -- one that experienced RC first followed by RT, and the second group in the opposite order. Reported presence was obtained by questionnaires following each session. The results indicate that reported presence, in terms of the 'sense of being there' was significantly higher for the RT than for the RC condition.

[1]  Seungyong Lee,et al.  The dichotomy of presence elements: the where and what , 2003, IEEE Virtual Reality, 2003. Proceedings..

[2]  Mel Slater,et al.  A Framework for Immersive Virtual Environments (FIVE): Speculations on the Role of Presence in Virtual Environments , 1997, Presence: Teleoperators & Virtual Environments.

[3]  Ingo Wald,et al.  Realtime ray tracing and interactive global illumination , 2004, Ausgezeichnete Informatikdissertationen.

[4]  Maria V. Sanchez-Vives,et al.  From presence to consciousness through virtual reality , 2005, Nature Reviews Neuroscience.

[5]  Katerina Mania,et al.  The effect of quality of rendering on user lighting impressions and presence in virtual environments , 2004, VRCAI '04.

[6]  Woodrow Barfield,et al.  Presence as a Function of Update Rate Within Virtual Environments , 1995 .

[7]  Woodrow Barfield,et al.  Presence within Virtual Environments as a Function of Visual Display Parameters , 1996, Presence: Teleoperators & Virtual Environments.

[8]  Neff Walker,et al.  Evaluating the importance of multi-sensory input on memory and the sense of presence in virtual environments , 1999, Proceedings IEEE Virtual Reality (Cat. No. 99CB36316).

[9]  Lawrence W. Stark,et al.  The Effects of Pictorial Realism, Delay of Visual Feedback, and Observer Interactivity on the Subjective Sense of Presence , 1996, Presence: Teleoperators & Virtual Environments.

[10]  Mary C. Whitton,et al.  Walking > walking-in-place > flying, in virtual environments , 1999, SIGGRAPH.

[11]  M. Whitton,et al.  Effect of latency on presence in stressful virtual environments , 2003, IEEE Virtual Reality, 2003. Proceedings..

[12]  Thomas B. Sheridan,et al.  Musings on Telepresence and Virtual Presence , 1992, Presence: Teleoperators & Virtual Environments.

[13]  Philipp Slusallek,et al.  Interactive Global Illumination in Complex and Highly Occluded Environments , 2003, Rendering Techniques.

[14]  Mel Slater,et al.  How Colorful Was Your Day? Why Questionnaires Cannot Assess Presence in Virtual Environments , 2004, Presence: Teleoperators & Virtual Environments.

[15]  Turner Whitted,et al.  An improved illumination model for shaded display , 1979, CACM.

[16]  Mel Slater,et al.  Taking steps: the influence of a walking technique on presence in virtual reality , 1995, TCHI.

[17]  Lawrence W. Stark,et al.  How virtual reality works: illusions of vision in "real" and virtual environments , 1995, Electronic Imaging.

[18]  Woodrow Barfield,et al.  The effect of update rate on the sense of presence within virtual environments , 1995, Virtual Reality.

[19]  Michael Meehan,et al.  Physiological measures of presence in stressful virtual environments , 2002, SIGGRAPH.

[20]  Mel Slater,et al.  The Influence of Dynamic Shadows on Presence in Immersive Virtual Environments , 1995, Virtual Environments.

[21]  Wijnand A. IJsselsteijn,et al.  Effects of Stereoscopic Presentation, Image Motion, and Screen Size on Subjective and Objective Corroborative Measures of Presence , 2001, Presence: Teleoperators & Virtual Environments.

[22]  Paul Zimmons,et al.  The influence of rendering quality on presence and task performance in a virtual environment , 2003, IEEE Virtual Reality, 2003. Proceedings..

[23]  Mel Slater,et al.  A Virtual Presence Counter , 2000, Presence: Teleoperators & Virtual Environments.

[24]  Woodrow Barfield,et al.  Measuring Presence in Virtual Environments: A Presence Questionnaire , 1998, Presence.