@ARTICLE {Mindek-2013-VPE,
author = "Peter Mindek and Stefan Bruckner and Peter Rautek and Meister Eduard Gr{\"o}ller",
title = "Visual Parameter Exploration in {GPU} Shader Space",
journal = "Journal of WSCG",
year = "2013",
volume = "21",
number = "3",
pages = "225--234",
month = "jun",
abstract = "The wide availability of high-performance GPUs has made the use of  shader programs in visualization ubiquitous.Understanding shaders  is a challenging task. Frequently it is difficult to mentally reconstruct  the nature and types of transformations applied to the underlying  data during the visualization process. We propose a method for the  visual analysis of GPU shaders, which allows the flexible exploration  and investigation of algorithms, parameters, and their effects. We  introduce a method for extracting feature vectors composed of several  attributes of the shader, as well as a direct manipulation interface  for assigning semantics to them. The user interactively classifies  pixels of images which are rendered with the investigated shader.  The two resulting classes, a positive class and a negative one, are  employed to steer the visualization. Based on this information, we  can extract a wide variety of additional attributes and visualize  their relation to this classification. Our system allows an interactive  exploration of shader space and we demonstrate its utility for several  different applications.",
pdf = "pdfs/Mindek-2013-VPE.pdf",
images = "images/Mindek-2013-VPE.jpg",
thumbnails = "images/Mindek-2013-VPE.png",
youtube = "https://www.youtube.com/watch?v=Sk7EXvqCoxs",
keywords = "parameter space exploration, shader augmentation",
url = "//www.cg.tuwien.ac.at/research/publications/2013/mindek-2013-pel/"
}