Title: | Enhancement to Directional Coherence Maps |
Authors: | Scheel, Annette Stamminger, Marc Pütz, Jörg Seidel, Hans-Peter |
Citation: | WSCG '2001: Conference proceedings: The 9-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2001: University of West Bohemia, Plzen, Czech Republic, February 5.-9., 2001, p. 403-410. |
Issue Date: | 2001 |
Publisher: | University of West Bohemia |
Document type: | konferenční příspěvek conferenceObject |
URI: | http://wscg.zcu.cz/wscg2001/Papers_2001/R345.pdf.gz http://hdl.handle.net/11025/11298 |
ISBN: | 80-7082-713-0 |
ISSN: | 1213-6972 |
Keywords: | směrové koherenční mapy;vykreslování;interpolace |
Keywords in different language: | directional coherence maps;rendering;interpolation |
Abstract: | Directional Coherence Maps as proposed by Guo in ’98 are a very efficient acceleration technique for ray tracing based global illumination renderers. It vastly reduces the number of pixels which have to be computed exactly by identifying regions which are suitable for interpolation. By using oriented finite elements for interpolation, the sampling density can be kept low for large regions of the target image. In this paper we describe extensions of the method. An improved object test is presented which prevents that small objects are missed. Additionally, it is shown how to handle textures efficiently, which was not possible with the original approach. |
Rights: | © University of West Bohemia |
Appears in Collections: | WSCG '2001: Conference proceedings |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Scheel.pdf | Plný text | 1,41 MB | Adobe PDF | View/Open |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/11298
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