IlluminationCut

We present a novel algorithm, IlluminationCut, for rendering images using the many‐lights framework. It handles any light source that can be approximated with virtual point lights (VPLs) as well as highly glossy materials. The algorithm extends the Multidimensional Lightcuts technique by effectively...

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Bibliographic Details
Published in:Computer graphics forum Vol. 34; no. 2; pp. 561 - 573
Main Authors: Bus, N., Mustafa, N. H., Biri, V.
Format: Journal Article
Language:English
Published: Oxford Blackwell Publishing Ltd 01.05.2015
Subjects:
Adaptive sampling
Algorithms
Analysis
and texture
Approximation
Categories and Subject Descriptors (according to ACM CCS)
Clusters
Computer graphics
Handles
I.3.7 [Computer Graphics]: Color
I.3.7 [Computer Graphics]: Color, shading, shadowing, and texture
Image processing systems
Light
Queries
Rendering
shading
shadowing
State of the art
Studies
ISSN:0167-7055, 1467-8659
Online Access:Get full text
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Description
Summary:We present a novel algorithm, IlluminationCut, for rendering images using the many‐lights framework. It handles any light source that can be approximated with virtual point lights (VPLs) as well as highly glossy materials. The algorithm extends the Multidimensional Lightcuts technique by effectively creating an illumination‐aware clustering of the product‐space of the set of points to be shaded and the set of VPLs. Additionally, the number of visibility queries for each product‐space cluster is reduced by using an adaptive sampling technique. Our framework is flexible and achieves around 3 – 6 times speedup over previous state‐of‐the‐art methods.
Bibliography:ark:/67375/WNG-R6JSZDSG-J
istex:F0B89E0C52D174F364B7C6769305A365BE18C885
Supporting Information
ArticleID:CGF12584
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ObjectType-Article-1
ObjectType-Feature-2
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ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.12584