Fullsphere Irradiance Factorization for Real-time All-frequency Illumination for Dynamic Scenes

Authors: Despina Michael and Yiorgos Chrysanthou

Journal publicationComputer Graphics ForumVolume 29, Issue 8, pages 2516–2529, December 2010.

Keywords: Real-time rendering, All-frequency illumination

Download the full paper here.



Computation of illumination with soft shadows from all frequency environment maps, is a computational expensive process. Use of precomputations add the limitation that receiver’s geometry must be known in advance, since Irradiance computation takes into account the receiver’s normal direction. We propose a method that allows the accumulation of the contribution to the Irradiance, on a possible receiver, from all light sources in the scene, without knowing the receiver’s geometry. This expensive computation is done at the preprocessing. The precomputed value is used at run time to compute the Irradiance arriving at any receiver with known direction. We show how using this technique we compute soft shadows and self shadows in real-time from all-frequency environments, with only modest memory requirements. A GPU implementation of the method, yields high frame rates even for complex scenes with dozens of dynamic occluders and receivers.



Contributions & Strengths of our method

  1. The main contribution of our technique is the factorization of a new notion that we introduce, the Fullsphere Irradiance. The factorization allows us to precompute and store in only a 3D color vector, the contribution to illumination from an arbitrary number of light sources on a reference base system, without requiring the receiver’s normal in advance. The precomputed values can be transformed, in a very fast way (using only a dot product), to the Irradiance arriving from the light sources, once the receiver and it’s normal is known.
  2. The proposed method can compute diffuse illumination with soft shadows for fully dynamic receivers,  moving occluders and all frequency environment maps at real-time frame rates.
  3. Frame rate and memory requirements are independent of the number of light sources and the number of vertices of the occluders. Frame rate depends only on the number of occluders in the scene while the memory requirements depends on the number of sample points used and the different type of objects in the scene.
  4. The size and the complexity of the occluders do not affect the computations for illumination at run time.
  5. Our technique requires only moderate memory and relative fast precomputations.
  6. Our method can run real-time for very complex scenes, with low measured error.


































  • download kartu ucapan lebaran 2011
  • cs cz exe
  • download back to december 3gp
  • loucademia de policia dublado rmvb
  • download left 4 dead witch ringtone
  • delia omadeo download mp3
  • pokemon sapphire mac
  • para instalar impressora hp 2050
  • download imovie version 4
  • photoshop dotted brush
  • mile kitic pticica free mp3
  • download blunted in the bomb shelter
  • download skype voice changer clownfish
  • celia cruz mp3
  • 9630 blackberry firmware
  • download driver lucent win modem xp
  • download pc alarm clock
  • cowboy bebop download blu ray
  • download femme fatale tour rmvb
  • psicotsi download firefox 9
  • php from website
  • sAoA pAyta 2012
  • download hercules dj control software
  • download pokemon bianco ita x pc
  • download hot 3gp video songs
  • arma 2 combined operations lastschrift
  • gladiator movie hd
  • strafe map cs 1.5 download
  • lagu rabbani anak soleh
  • hey say 7
  • panasonic kx flb802 driver download
  • pallikattu sabarimalaikku song download
  • courier new ttf
  • questo A? amore download
  • cd gustavo lima 2012
  • one republic too late to apologize mp3
  • download driver matrox millennium p650
  • free visit card program
  • cd gaucho da fronteira 2011
  • video aula guitarra iniciantes download
  • valentine mashup 3gp download
  • zero no tsukaima 4atemporada
  • activex control xp free
  • copiar e gravar dvd
  • warner bros mp3 ringtone download
  • lagu vocaloid just be friends
  • shift 2 1.02
  • jay z blueprint 3 instrumentals
  • game ringan untuk notebook gratis
  • gq june 2012 camera
  • unreal tournament weapons
  • biohazard 2 nintendo 64 download
  • download free creative vf 0040 driver
  • livros de ciencias naturais
  • maxthon 3 free chip
  • download te iubesc din corason sorinel pustiu
  • download 5.1 ipsw iphone 4
  • strange love fashawn download
  • west wing season 7 free
  • belmonte e amarai album download
  • outta control pitbull mp3
  • download collide by kid rock and sheryl crow
  • cet designer free software
  • groovy little summer song
  • download timeline on facebook
  • download barnacle bay a nova vizinhanAa
  • free hamza namira album insan
  • brad paisley she's everything mp3 free
  • samsung s3350 game download
  • weapon spawner for gta sa
  • bt suddenly mp3
  • pleasure p lick lick lick
  • gps to my phone
  • dynamite taio cruz 1080p
  • hp storage essentials download
  • ssbb for homebrew
  • noche de placer download
  • corel draw download keygen x5
  • download champions return to arms
  • tv mobile nokia 5800
  • insecure indigo vanity mp3
  • return of heracles download
  • itr 1 sahaj 2012 13
  • free no browser mmos
  • a doutrina secreta blavatsky
  • denisa ce suflet ai fileshare
  • download win keyfinder windows 7
  • dbz filme 6
  • download andreea banica come with me
  • free mpeg for windows 7
  • download vamo aposta inimigos da hp
  • radhe radhe japo download
  • bubble puzzle 97 1.3d
  • windows aik 3.1
  • sct tuner program download
  • doodle jump nokia c5 03
  • download trio kwek kwek mp3
  • super onze nds
  • eren takkan pisah download mp3
  • fairy tail 140 hd download
  • download news on ipad
  • download just died in your arms cutting crew
  • history of rap 3
  • foaie verde 5 chiperi mp3
  • download anonim o fata speciala zippy
  • download x men primeira classe
  • ps3updat pup 3.60
  • hyper sonic mugen
  • download indian writers novels
  • beetle ju 3 kostenlos
  • download espinoza paz maria jose
  • download album yuri da cunha
  • sims 2 download akcesoria
  • nx cash hack
  • assaf neto matematica financeira
  • download kelis trick me mp3
  • metal gear solid 3 ost
  • download qgrep utility windows
  • download jersey shore 2011
  • download lagu igo beri aku peluang
  • setup factory 9
  • download disney lion king game
  • voiture gta 3
  • microsoft quickbasic v4 5 download free
  • dedication to my ex dirty
  • music limewire shut down
  • download m kumaran son of mahalakshmi mp3 songs
  • download applicazioni samsung star 2