Efficient Modeling and Rendering of Iridescence from Cholesteric Liquid Crystals

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dc.contributor.authorFourneau, Garyen_US
dc.contributor.authorBarla, Pascalen_US
dc.contributor.authorPacanowski, Romainen_US
dc.contributor.editorWang, Beibeien_US
dc.contributor.editorWilkie, Alexanderen_US
dc.date.accessioned2025-06-20T07:50:13Z
dc.date.available2025-06-20T07:50:13Z
dc.date.issued2025
dc.description.abstractWe introduce a novel approach to the efficient modeling and rendering of Cholesteric Liquid Crystals (CLCs), materials known for producing colorful effects due to their helical molecular structure. CLCs reflect circularly-polarized light within specific spectral bands, making their accurate simulation challenging for realistic rendering in Computer Graphics. Using the two-wave approximation from the Photonics literature, we develop a piecewise spectral reflectance model that improves the understanding of how light interact with CLCs for arbitrary incident angles. Our reflectance model allows for more efficient spectral rendering and fast integration into RGB-based rendering engines. We show that our approach is able to reproduce the unique visual properties of both natural and man-made CLCs, while keeping the computation fast enough for interactive applications and avoiding potential spectral aliasing issues.en_US
dc.description.sectionheadersBSDF Models and Scattering
dc.description.seriesinformationEurographics Symposium on Rendering
dc.identifier.doi10.2312/sr.20251196
dc.identifier.isbn978-3-03868-292-9
dc.identifier.issn1727-3463
dc.identifier.pages15 pages
dc.identifier.urihttps://doi.org/10.2312/sr.20251196
dc.identifier.urihttps://diglib.eg.org/handle/10.2312/sr20251196
dc.publisherThe Eurographics Associationen_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCCS Concepts: Computing methodologies -> Computer graphics; Rendering; Reflectance modeling
dc.subjectComputing methodologies
dc.subjectComputer graphics
dc.subjectRendering
dc.subjectReflectance modeling
dc.titleEfficient Modeling and Rendering of Iridescence from Cholesteric Liquid Crystalsen_US
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