Scalable Realistic Rendering with Many-Light Methods

Recent years have seen increasing attention and significant progress in many‐light rendering, a class of methods for efficient computation of global illumination. The many‐light formulation offers a unified mathematical framework for the problem reducing the full lighting transport simulation to the...

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Bibliographic Details
Published in:Computer graphics forum Vol. 33; no. 1; pp. 88 - 104
Main Authors: Dachsbacher, Carsten, Křivánek, Jaroslav, Hašan, Miloš, Arbree, Adam, Walter, Bruce, Novák, Jan
Format: Journal Article
Language:English
Published: Oxford Blackwell Publishing Ltd 01.02.2014
Subjects:
global illumination
I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism-Ray tracing
Light
ray tracing
rendering
ISSN:0167-7055, 1467-8659
Online Access:Get full text
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Summary:Recent years have seen increasing attention and significant progress in many‐light rendering, a class of methods for efficient computation of global illumination. The many‐light formulation offers a unified mathematical framework for the problem reducing the full lighting transport simulation to the calculation of the direct illumination from many virtual light sources. These methods are unrivaled in their scalability: they are able to produce plausible images in a fraction of a second but also converge to the full solution over time. In this state‐of‐the‐art report, we give an easy‐to‐follow, introductory tutorial of the many‐light theory; provide a comprehensive, unified survey of the topic with a comparison of the main algorithms; discuss limitations regarding materials and light transport phenomena and present a vision to motivate and guide future research. We will cover both the fundamental concepts as well as improvements, extensions and applications of many‐light rendering. Recent years have seen increasing attention and significant progress in many‐light rendering, a class of methods for efficient computation of global illumination. The many‐light formulation offers a unified mathematical framework for the problem reducing the full lighting transport simulation to the calculation of the direct illumination from many virtual light sources. These methods are unrivaled in their scalability: they are able to produce plausible images in a fraction of a second but also converge to the full solution over time. In this state‐of‐the‐art report, we give an easy‐to‐follow, introductory tutorial of the many‐light theory.
Bibliography:Czech Science Foundation - No. P202-13-26189S
ArticleID:CGF12256
istex:8535974DABC8232CDAC0CE8A6B6AEEC764EA704E
Intel Visual Computing Institute in Saarbrücken
DFG - No. DA 1200/1-1
ark:/67375/WNG-TCCW39LN-P
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.12256