Detail publikačního výsledku

High-quality Shadows with Improved Paraboloid Mapping

VANEK, J.; NAVRÁTIL, J.; HEROUT, A.; ZEMČÍK, P.

Originální název

High-quality Shadows with Improved Paraboloid Mapping

Anglický název

High-quality Shadows with Improved Paraboloid Mapping

Druh

Stať ve sborníku mimo WoS a Scopus

Originální abstrakt

This paper introduces a novel approach to rendering of high-
quality shadows in real-time. The contemporary approach to shadow rendering in real-time is shadow maps algorithm. The standard shadow maps suffer from discretization and aliasing due to the limited resolution of the shadow texture. Moreover, omnidirectional lights need additional treatment to work correctly, e.g. with dual-paraboloid shadow maps. We propose a new technique that significantly reduces the aliasing problem and works correctly for various kinds of light sources. Our technique adapts the light's field-of-view to the visible part of the scene and thus stores only the relevant part of the scene to the full resolution of the shadow map. It produces high-quality shadows which are not constrained by position or type of the light sources and also works in fully dynamic scenes.

Anglický abstrakt

This paper introduces a novel approach to rendering of high-
quality shadows in real-time. The contemporary approach to shadow rendering in real-time is shadow maps algorithm. The standard shadow maps suffer from discretization and aliasing due to the limited resolution of the shadow texture. Moreover, omnidirectional lights need additional treatment to work correctly, e.g. with dual-paraboloid shadow maps. We propose a new technique that significantly reduces the aliasing problem and works correctly for various kinds of light sources. Our technique adapts the light's field-of-view to the visible part of the scene and thus stores only the relevant part of the scene to the full resolution of the shadow map. It produces high-quality shadows which are not constrained by position or type of the light sources and also works in fully dynamic scenes.

Klíčová slova

shadow maps, dual-paraboloid mapping, omnidirectional lights, aliasing

Klíčová slova v angličtině

shadow maps, dual-paraboloid mapping, omnidirectional lights, aliasing

Autoři

VANEK, J.; NAVRÁTIL, J.; HEROUT, A.; ZEMČÍK, P.

Rok RIV

2012

Vydáno

29.06.2011

Nakladatel

Springer Verlag

Místo

Heidelberg

ISBN

978-3-642-24027-0

Kniha

Advances in Visual Computing

Edice

Lecture Notes in Computer Science

Svazek

6938

Strany od

421

Strany do

430

Strany počet

10

BibTex

@inproceedings{BUT76415,
  author="Juraj {Vanek} and Jan {Navrátil} and Adam {Herout} and Pavel {Zemčík}",
  title="High-quality Shadows with Improved Paraboloid Mapping",
  booktitle="Advances in Visual Computing",
  year="2011",
  series="Lecture Notes in Computer Science",
  volume="6938",
  pages="421--430",
  publisher="Springer Verlag",
  address="Heidelberg",
  isbn="978-3-642-24027-0"
}