GPU accelerated direct volume rendering on an interactive light field display

Marco Agus, Enrico Gobbetti, José Antonio Iglesias Guitián, Fabio Marton, Giovanni Pintore

Research output: Contribution to journalConference articlepeer-review

22 Scopus citations

Abstract

We present a GPU accelerated volume ray casting system interactively driving a multi-user light field display. The display, driven by a single programmable GPU, is based on a specially arranged array of projectors and a holographic screen and provides full horizontal parallax. The characteristics of the display are exploited to develop a specialized volume rendering technique able to provide multiple freely moving naked-eye viewers the illusion of seeing and manipulating virtual volumetric objects floating in the display workspace. In our approach, a GPU ray-caster follows rays generated by a multiple-center-of-projection technique while sampling pre-filtered versions of the dataset at resolutions that match the varying spatial accuracy of the display. The method achieves interactive performance and provides rapid visual understanding of complex volumetric data sets even when using depth oblivious compositing techniques.

Original languageEnglish (US)
Pages (from-to)231-240
Number of pages10
JournalComputer Graphics Forum
Volume27
Issue number2
DOIs
StatePublished - Jan 1 2008
Event29th Annual Conference on European Association for Computer Graphics, EUROGRAPHICS 2008 - Crete, Greece
Duration: Apr 14 2008Apr 18 2008

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design

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