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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F10%3A10057072%21RIV13-MSM-11320___
rdf:type
n15:Vysledek skos:Concept
rdfs:seeAlso
http://dl.acm.org/citation.cfm?doid=1882262.1866169
dcterms:description
While many fast global illumination solutions have been proposed, all of them work under limiting assumptions on the materials and lighting in the scene. In the presence of many glossy (directionally scattering) materials, fast solutions either fail or degenerate to inefficient, brute-force simulations of the underlying light transport. In particular, many-light algorithms are able to provide fast approximations by clamping elements of the light transport matrix, but they eliminate the part of the transport that contributes to accurate glossy appearance. In this paper we introduce a solution that separately solves for the global (low-rank, dense) and local (highrank, sparse) illumination components. For the low-rank component we introduce visibility clustering and approximation, while for the high-rank component we introduce a local light technique to correct for the missing illumination. While many fast global illumination solutions have been proposed, all of them work under limiting assumptions on the materials and lighting in the scene. In the presence of many glossy (directionally scattering) materials, fast solutions either fail or degenerate to inefficient, brute-force simulations of the underlying light transport. In particular, many-light algorithms are able to provide fast approximations by clamping elements of the light transport matrix, but they eliminate the part of the transport that contributes to accurate glossy appearance. In this paper we introduce a solution that separately solves for the global (low-rank, dense) and local (highrank, sparse) illumination components. For the low-rank component we introduce visibility clustering and approximation, while for the high-rank component we introduce a local light technique to correct for the missing illumination.
dcterms:title
Combining global and local virtual lights for detailed glossy illumination Combining global and local virtual lights for detailed glossy illumination
skos:prefLabel
Combining global and local virtual lights for detailed glossy illumination Combining global and local virtual lights for detailed glossy illumination
skos:notation
RIV/00216208:11320/10:10057072!RIV13-MSM-11320___
n3:aktivita
n10:R
n3:aktivity
R
n3:cisloPeriodika
6
n3:dodaniDat
n11:2013
n3:domaciTvurceVysledku
n8:6335462
n3:druhVysledku
n6:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
251228
n3:idVysledku
RIV/00216208:11320/10:10057072
n3:jazykVysledku
n19:eng
n3:klicovaSlova
glossy reflections; VPL; virtual lights; global illumination; Computer graphics
n3:klicoveSlovo
n4:global%20illumination n4:glossy%20reflections n4:virtual%20lights n4:Computer%20graphics n4:VPL
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[A65D06503B9A]
n3:nazevZdroje
ACM Transactions on Graphics
n3:obor
n17:JD
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n11:2010
n3:svazekPeriodika
29
n3:tvurceVysledku
Hašan, Miloš Křivánek, Jaroslav Bala, Kavita Davidovič, Tomáš Slusallek, Philipp
n3:wos
000284943000007
s:issn
0730-0301
s:numberOfPages
10
n12:doi
10.1145/1882262.1866169
n13:organizacniJednotka
11320