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Slab-Based Raycasting: Efficient Volume Rendering with CUDA
University of Münster, Germany.
University of Münster, Germany.
University of Münster, Germany.
2009 (English)In: HPG 2009 High Performance Graphics, 2009Conference paper, Poster (Other academic)
Abstract [en]

GPU-based raycasting is the state-of-the-art rendering technique for interactive volume visualization. The ray traversal is usually implemented in a fragment shader, utilizing the hardware in a way that was not originally intended. New programming interfaces for stream processing, such as CUDA, support a more general programming model and the use of additional device features, which are not accessible through traditional shader programming.We propose a slab-based raycasting technique that is modeled specifically to use these features to accelerate volume rendering. This technique is based on experience gained from comparing fragment shader implementations of basic raycasting to implementations directly translated to CUDA kernels. The comparison covers direct volume rendering with a variety of optional features, e.g., gradient and lighting calculations.

Place, publisher, year, edition, pages
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Computer and Information Science
URN: urn:nbn:se:liu:diva-93207OAI: diva2:623449
High Performance Graphics (HPG 2009), New Orleans, Louisiana, USA, August 1-3, 2009
Available from: 2013-05-27 Created: 2013-05-27 Last updated: 2013-06-05Bibliographically approved

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Ropinski, Timo
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