@ARTICLE {Solteszova-2010-MOS,
author = "Veronika \v{S}olt{\'e}szov{\'a} and Daniel Patel and Stefan Bruckner and Ivan Viola",
title = "A Multidirectional Occlusion Shading Model for Direct Volume Rendering",
journal = "Computer Graphics Forum",
year = "2010",
volume = "29",
number = "3",
pages = "883--891",
month = "jun",
abstract = "In this paper, we present a novel technique which simulates directional  light scattering for more realistic interactive visualization of  volume data. Our method extends the recent directional occlusion  shading model by enabling light source positioning with practically  no performance penalty. Light transport is approximated using a tilted  cone-shaped function which leaves elliptic footprints in the opacity  buffer during slice-based volume rendering. We perform an incremental  blurring operation on the opacity buffer for each slice in front-to-back  order. This buffer is then used to define the degree of occlusion  for the subsequent slice. Our method is capable of generating high-quality  soft shadowing effects, allows interactive modification of all illumination  and rendering parameters, and requires no pre-computation.",
pdf = "pdfs/Solteszova-2010-MOS.pdf",
images = "images/Solteszova-2010-MOS.jpg",
thumbnails = "images/Solteszova-2010-MOS.png",
youtube = "https://www.youtube.com/watch?v=V4y0BVKV_bw",
doi = "10.1111/j.1467-8659.2009.01695.x",
event = "EuroVis 2010",
keywords = "global illumination, volume rendering, shadows, optical model",
location = "Bordeaux, France",
project = "illustrasound,medviz,illvis",
url = "//www.cg.tuwien.ac.at/research/publications/2010/solteszova-2010-MOS/"
}