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Test Immersion in DomeTheater using Tracking device
Linköping University, Department of Science and Technology, Media and Information Technology.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 30 credits / 45 HE creditsStudent thesis
Abstract [en]

Head tracking is an important way to interact with virtual objects in virtual world. The viewercan move or rotate his head to observe the 3D scene in dierent view. Normally head tracking isused in a cave or just on a at screen.Dome theater has a half sphere screen with multiple projectors together for showing the wholescene onto the big screen. The dome screen could give the viewer a very strong immersion feelingwhen head tracking inside dome theater and that is why we want to implement head tracking indome theater. The half sphere dome screen is so big that multiple projectors should be used forshooting the whole scene onto the big screen. Hence a cluster system is used for manipulating allthe projectors working smoothly. The display system of dome theater has no place for the headtracking part.This thesis tries to introduce a method to do head tracking in dome theater. The mainproblem is how to add head tracking in the display system in dome theater. Frame buer object(FBO) is used as the solution for this problem. The viewer's viewing frustum is created in framebuer object in order to render the 3D scene depending on the viewer's head position. The FBOtexture will then be attached onto a 3D sphere which simulates the dome sphere in virtual world.Since the viewing frustum is always created depending on the viewer's head position, the FBOtextures on the 3D sphere always can represent the 3D scene rendered depending on the viewer'shead position. Using the projectors to shoot the 3D scenes which is the 3D sphere attached by theFBO textures onto the dome screen. That is the main part of how to implement head tracking indome theater.This thesis forcus on rendering the 3D scene onto the dome screen depending on the viewer'shead position. The tracking device controlling part is out of this thesis's scope. VR Juggler (VRJ) is used as the framework in this project. Viewer's position setting and cluster setting are allsetted in the conguration file.

Place, publisher, year, edition, pages
2011. , 36 p.
Keyword [en]
Head tracking, dome theater, phasespace, degree of freedom
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-69280ISRN: LiU-ITN-TEK-A--11/037--SEOAI: oai:DiVA.org:liu-69280DiVA: diva2:425361
Subject / course
Master's Programme in Advanced Computer Graphics, 120 ECTS
Presentation
2011-06-14, TP31, Entréplan, Täppan, Norrkoping, 10:15 (English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2011-06-21 Created: 2011-06-21 Last updated: 2011-06-27Bibliographically approved

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