Bi-Directional Polarised Light Transport

Simple item page
dc.contributor.authorMojzík, Michalen_US
dc.contributor.authorSkřivan, Tomášen_US
dc.contributor.authorWilkie, Alexanderen_US
dc.contributor.authorKřivánek, Jaroslaven_US
dc.contributor.editorElmar Eisemann and Eugene Fiumeen_US
dc.date.accessioned2016-06-17T14:12:44Z
dc.date.available2016-06-17T14:12:44Z
dc.date.issued2016en_US
dc.description.abstractWhile there has been considerable applied research in computer graphics on polarisation rendering, no principled investigation of how the inclusion of polarisation information affects the mathematical formalisms that are used to describe light transport algorithms has been conducted so far. Simple uni-directional rendering techniques do not necessarily require such considerations: but for modern bi-directional light transport simulation algorithms, an in-depth solution is needed. In this paper, we first define the transport equation for polarised light based on the Stokes Vector formalism. We then define a notion of polarised visual importance, and we show that it can be conveniently represented by a 4 4 matrix, similar to the Mueller matrices used to represent polarised surface reflectance. Based on this representation, we then define the adjoint transport equation for polarised importance. Additionally, we write down the path integral formulation for polarised light, and point out its salient differences from the usual formulation for light intensities. Based on the above formulations, we extend some recently proposed advanced light transport simulation algorithms to support polarised light, both in surface and volumetric transport. In doing that, we point out optimisation strategies that can be used to minimise the overhead incurred by including polarisation support into such algorithms.en_US
dc.description.sectionheadersLight Transport - Part 2en_US
dc.description.seriesinformationEurographics Symposium on Rendering - Experimental Ideas & Implementationsen_US
dc.description.sponsorshipAcknowledgements This work was financed by the Czech Science Foundation under grant number 16-08111S, as well as by the Grant Agency of Charles University via grant SVV-2016-260332.
dc.identifier.doi10.2312/sre.20161215en_US
dc.identifier.isbn978-3-03868-019-2en_US
dc.identifier.issn1727-3463en_US
dc.identifier.pages97-108en_US
dc.identifier.urihttps://doi.org/10.2312/sre.20161215en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.3 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectDisplay Algorithmsen_US
dc.titleBi-Directional Polarised Light Transporten_US
Files
Original bundle
Now showing 1 - 5 of 9
Thumbnail Image
Name:
097-108.pdf
Size:
6.91 MB
Format:
Adobe Portable Document Format
Download
Thumbnail Image
Name:
PolarisingLightTransport-fin.pdf
Size:
7.68 MB
Format:
Adobe Portable Document Format
Description:
paper with acknowledgements
Download
No Thumbnail Available
Name:
embree-2.0.zip
Size:
1.05 MB
Format:
Zip file
Download
No Thumbnail Available
Name:
openexr.zip
Size:
3.26 MB
Format:
Zip file
Download
No Thumbnail Available
Name:
polarisedupbp.zip
Size:
280.43 KB
Format:
Zip file
Download
Collections
Rendering - Experimental Ideas & Implementations 2016