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Global illumination with Monte Carlo ray tracing

Jaroslav Křivánek
2008 ACM SIGGRAPH 2008 classes on - SIGGRAPH '08  
Křivánek Practical Global Illumination With Irradiance Caching (SIGGRAPH 2008 Class) Course #16: Practical global illumination with irradiance caching -Intro & Stochastic ray tracing Course #16  ...  Křivánek Practical Global Illumination With Irradiance Caching (SIGGRAPH 2008 Class) Course #16: Practical global illumination with irradiance caching -Intro & Stochastic ray tracing Photon mapping  ... 
doi:10.1145/1401132.1401214 dblp:conf/siggraph/Krivanek08 fatcat:zf7bywr66bd7rolzcmiugj5pp4

Fast and detailed approximate global illumination by irradiance decomposition

Okan Arikan, David A. Forsyth, James F. O'Brien
2005 ACM Transactions on Graphics  
In this paper we present an approximate method for accelerated computation of the final gathering step in a global illumination algorithm.  ...  We also discuss how our near-field approximation can be used with standard local illumination algorithms to produce significantly improved images at only negligible additional cost.  ...  We also thank Pixar and Wayne Wooden for providing us with their renderer and helping us with our comparisons.  ... 
doi:10.1145/1073204.1073319 fatcat:ngjczcccfjcy5dzwxy7hofyile

Fast and detailed approximate global illumination by irradiance decomposition

Okan Arikan, David A. Forsyth, James F. O'Brien
2005 ACM SIGGRAPH 2005 Papers on - SIGGRAPH '05  
In this paper we present an approximate method for accelerated computation of the final gathering step in a global illumination algorithm.  ...  We also discuss how our near-field approximation can be used with standard local illumination algorithms to produce significantly improved images at only negligible additional cost.  ...  We also thank Pixar and Wayne Wooden for providing us with their renderer and helping us with our comparisons.  ... 
doi:10.1145/1186822.1073319 fatcat:xwclijqr2zbcvaj43zy3wlef5m

An Irradiance Atlas for Global Illumination in Complex Production Scenes [article]

Per H. Christensen, Dana Batali
2004 Symposium on Rendering  
We show an example of a CG movie scene that has been retrofitted with global illumination shading using our method.  ...  We introduce a tiled 3D MIP map representation of global illumination data.  ...  We use the brick map format to improve the photon map method with efficient caching of global illumination irradiance data.  ... 
doi:10.2312/egwr/egsr04/133-141 fatcat:gel22xm2trakbftk4ti2vcpari

Exploiting temporal coherence in global illumination

T. Tawara, K. Myszkowski, K. Dmitriev, V. Havran, C. Damez, H.-P. Seidel
2004 Proceedings of the 20th spring conference on Computer graphics - SCCG '04  
In this paper we present a number of global illumination and rendering solutions that exploit temporal coherence in lighting distribution for subsequent frames to improve the computation performance and  ...  Our strategy relies on extending into temporal domain well-known global illumination techniques such as density estimation photon tracing, photon mapping, and bi-directional path tracing, which were originally  ...  High-Quality Rendering Using an Irradiance Cache In the rendering of production quality animation, global illumination computations are usually performed using two-pass methods.  ... 
doi:10.1145/1037210.1037214 dblp:conf/sccg/TawaraMDHDS04 fatcat:izc6dlxrhzasrfhjjgs5xyq44e

An efficient GPU-based approach for interactive global illumination

Rui Wang, Rui Wang, Kun Zhou, Minghao Pan, Hujun Bao
2009 ACM SIGGRAPH 2009 papers on - SIGGRAPH '09  
This paper presents a GPU-based method for interactive global illumination that integrates complex effects such as multi-bounce indirect lighting, glossy reflections, caustics, and arbitrary specular paths  ...  As a result, our algorithm runs entirely on the GPU, achieving interactive rates for scenes with complex illumination effects.  ...  At each node's center we evaluate and cache an irradiance value by using density estimation in the global photon map.  ... 
doi:10.1145/1576246.1531397 fatcat:pvyyt2mlsjhjhaaide6uomzbdq

An efficient GPU-based approach for interactive global illumination

Rui Wang, Rui Wang, Kun Zhou, Minghao Pan, Hujun Bao
2009 ACM Transactions on Graphics  
This paper presents a GPU-based method for interactive global illumination that integrates complex effects such as multi-bounce indirect lighting, glossy reflections, caustics, and arbitrary specular paths  ...  As a result, our algorithm runs entirely on the GPU, achieving interactive rates for scenes with complex illumination effects.  ...  At each node's center we evaluate and cache an irradiance value by using density estimation in the global photon map.  ... 
doi:10.1145/1531326.1531397 fatcat:uxpsavgv2zedxczhytfed5abhm

Making radiance and irradiance caching practical

Jaroslav Křivánek, Kadi Bouatouch, Sumanta Pattanaik, Jiří Žára
2008 ACM SIGGRAPH 2008 classes on - SIGGRAPH '08  
Radiance and irradiance caching are efficient global illumination algorithms based on interpolating indirect illumination from a sparse set of cached values.  ...  In addition, we discuss some practical problems arising in the implementation of radiance and irradiance caching, and propose techniques for solving those problems.  ...  global illumination computation.  ... 
doi:10.1145/1401132.1401230 dblp:conf/siggraph/KrivanekBPZ08 fatcat:fvzxknqwhvb4pbfhlzgopigpoi

Making Radiance and Irradiance Caching Practical: Adaptive Caching and Neighbor Clamping [article]

Jaroslav Krivánek, Kadi Bouatouch, Sumanta Pattanaik, Jirí Zára
2006 Symposium on Rendering  
Radiance and irradiance caching are efficient global illumination algorithms based on interpolating indirect illumination from a sparse set of cached values.  ...  In addition, we discuss some practical problems arising in the implementation of radiance and irradiance caching, and propose techniques for solving those problems.  ...  Žára / Making Radiance and Irradiance Caching Practical [Kři05] K ŘIVÁNEK J.: Radiance Caching for Global Illumination Computation on Glossy Surfaces.  ... 
doi:10.2312/egwr/egsr06/127-138 fatcat:7f3yckirsfb3lpotm7fxes7dd4

Theory, analysis and applications of 2D global illumination

Wojciech Jarosz, Volker Schönefeld, Leif Kobbelt, Henrik Wann Jensen
2012 ACM Transactions on Graphics  
We investigate global illumination in 2D and show how this simplified problem domain leads to practical insights for 3D rendering.  ...  We apply our theory to develop several practical improvements to the irradiance caching algorithm.  ...  We used our framework to perform a second-order analysis of global illumination and extended this analysis to obtain practical improvements for irradiance caching in 3D.  ... 
doi:10.1145/2231816.2231823 fatcat:k7pdwcxhqjg5bnble6nmy2ch3u

Irradiance caching and photon mapping

Henrik Wann Jensen
2008 ACM SIGGRAPH 2008 classes on - SIGGRAPH '08  
Wann Jensen Practical Global Illumination With Irradiance Caching (SIGRAPH 2008 Class) August 2008  ...  Wann Jensen Practical Global Illumination With Irradiance Caching (SIGRAPH 2008 Class) August 2008 d L c cos θ dω + caustics H.  ... 
doi:10.1145/1401132.1401218 dblp:conf/siggraph/Jensen08 fatcat:wcumzcod4reu7c5pksgivyu6m4

Radiance caching for efficient global illumination computation

Jaroslav Křivánek, Pascal Gautron, Sumanta Pattanaik, Kadi Bouatouch
2008 ACM SIGGRAPH 2008 classes on - SIGGRAPH '08  
In this paper we present a ray tracing based method for accelerated global illumination computation in scenes with low-frequency glossy BRDFs.  ...  In particular we extend the irradiance caching scheme of [WRC88] to cache and interpolate directional incoming radiance instead of irradiance.  ...  with global illumination [War94] .  ... 
doi:10.1145/1401132.1401228 dblp:conf/siggraph/KrivanekGPB08 fatcat:tl36jylu4fcv5ddn2oyjnfi4xq

Radiance Caching for Efficient Global Illumination Computation

J. Krivanek, P. Gautron, S. Pattanaik, K. Bouatouch
2005 IEEE Transactions on Visualization and Computer Graphics  
In this paper we present a ray tracing based method for accelerated global illumination computation in scenes with low-frequency glossy BRDFs.  ...  In particular we extend the irradiance caching scheme of [WRC88] to cache and interpolate directional incoming radiance instead of irradiance.  ...  with global illumination [War94] .  ... 
doi:10.1109/tvcg.2005.83 pmid:16144252 fatcat:gi7fbpu3afh5diop6vh2sfk7hq

Photon-driven Irradiance Cache

J. Brouillat, P. Gautron, K. Bouatouch
2008 Computer graphics forum (Print)  
We describe a global illumination method combining two well known techniques: photon mapping and irradiance caching.  ...  It computes a refined, view-independent irradiance cache from a photon map. The global illumination solution is then rendered interactively using radiance cache splatting.  ...  Today, the most commonly used global illumination computation methods are photon mapping [Jen96] and irradiance caching [WRC88] .  ... 
doi:10.1111/j.1467-8659.2008.01346.x fatcat:4pun6d6uajb3nga7vqgqd26cai

An approximate global illumination system for computer generated films

Eric Tabellion, Arnauld Lamorlette
2008 ACM SIGGRAPH 2008 classes on - SIGGRAPH '08  
We combine a modified irradiance gradient caching technique with an approximate lighting model that enhances caching coherence and provides good scalability to render complex scenes into highresolution  ...  Global illumination techniques do not lend themselves easily to flexibility, ease of use, or speed, and have remained out of reach thus far for the vast majority of images generated in this context.  ...  It uses irradiance caching to avoid sampling indirect illumination.  ... 
doi:10.1145/1401132.1401227 dblp:conf/siggraph/TabellionL08 fatcat:fdirqo63wzeqpjr4z7g7kuil6y
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