Publication Details

Front-to-Back Blending with Early Fragment Discarding

VLČEK, A.; HAVEL, J.; HEROUT, A. Front-to-Back Blending with Early Fragment Discarding. Proceedings of Spring Conference on Computer Graphics. Bratislava: Comenius University in Bratislava, 2010. p. 91-97. ISBN: 978-80-223-2843-2.
Czech title
Zobrazování průhledných objektů od nejbližších k nejvzdálenějším s časným vyřazením fragmentů
Type
conference paper
Language
English
Authors
Vlček Adam, Ing.
Havel Jiří, Ing., Ph.D. (CM-SFE)
Herout Adam, prof. Ing., Ph.D. (DCGM)
Keywords

blending, OpenGL, real-time, transparency

Abstract

Alpha-blending is a frequently used technique implemented in graphics hardware to achieve effects like transparency, volume rendering, displaying particle systems and others. A common approach to using blending is to sort objects from the furthest to closest (back-to-front) and render them in this order. However, the inverse order can be used with some small modifications to the blending process. This paper introduces an approach to use the front-to-back rendering order to discard fragments of rendered polygons that would not influence the visual result and thus speed the rendering up. The speed gain and visual compromises are measured in several scenarios simulating practical situations and the measured results are discussed and conclusions are drawn.

Published
2010
Pages
91–97
Proceedings
Proceedings of Spring Conference on Computer Graphics
ISBN
978-80-223-2843-2
Publisher
Comenius University in Bratislava
Place
Bratislava
BibTeX 
@inproceedings{BUT34821,
  author="Adam {Vlček} and Jiří {Havel} and Adam {Herout}",
  title="Front-to-Back Blending with Early Fragment Discarding",
  booktitle="Proceedings of Spring Conference on Computer Graphics",
  year="2010",
  pages="91--97",
  publisher="Comenius University in Bratislava",
  address="Bratislava",
  isbn="978-80-223-2843-2"
}
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