Title: Visual Parameter Exploration in GPU Shader Space
Authors: Mindek, Peter
Bruckner, Stefan
Rautek, Peter
Gröller, M. Eduard
Citation: Journal of WSCG. 2013, vol. 21, no. 3, p. 225-234.
Issue Date: 2013
Publisher: Václav Skala - Union Agency
Document type: článek
URI: http://wscg.zcu.cz/WSCG2013/!_2013_J_WSCG-3.pdf
ISSN: 1213–6972 (Hardcopy)
1213–6980 (CD-ROM)
1213–6964 (on-line)
Keywords: vizualizace dat;augmentace shaderu;grafické procesory
Keywords in different language: data visualization;augmentace shaderu;graphic processing units
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.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Volume 21, Number 3 (2013)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/6985

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