Article thumbnail

Pre-Integrated Volume Rendering for Multi-Dimensional Transfer Functions

By H. C. Hege, D. Laidlaw, R. Pajarola, O. Staadt (editors, M. Kraus, Computer Graphics, Visualization Group and Technische Universität München

Abstract

This work presents an efficient extension of pre-integrated volume rendering for multi-dimensional transfer functions. Since even two-dimensional transfer functions can result in strong rendering artifacts that cannot be resolved by standard ray casting, we propose a space-covering volume sampling scheme that does not require additional samples of the volume data. Based on this sampling scheme, our approach computes box integrals of the transfer functions, which are evaluated with the help of a small number of texture lookups in tabulated integral functions. We demonstrate the achieved performance and improvements in image quality with a prototypical GPU (graphics processing unit) implementation

Year: 2012
OAI identifier: oai:CiteSeerX.psu:10.1.1.219.6056
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://wwwcg.in.tum.de/Researc... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.