Rendering Transparent Materials with a Complex Refractive Index: Semi-conductor and Conductor Thin Layers

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dc.contributor.authorGerardin, Morganeen_US
dc.contributor.authorHolzschuch, Nicolasen_US
dc.contributor.authorMartinetto, Paulineen_US
dc.contributor.editorKlein, Reinhard and Rushmeier, Hollyen_US
dc.date.accessioned2019-09-16T09:26:29Z
dc.date.available2019-09-16T09:26:29Z
dc.date.issued2019
dc.description.abstractDuring physical simulation of light transport, we separate materials between conductors and dielectrics. The former have a complex refractive index and are treated as opaque, the latter a real one and are treated as transparent. However, thin layers with a complex refractive index can become transparent if their thickness is small compared to the extinction coeffcient. This happens with thin metallic layers, but also with many pigments that are semiconductors: their extinction coeffcient (the imaginary part of their refractive index) is close to zero for part of the visible spectrum. Spectral effects inside these thin layers (attenuation and interference) result in dramatic color changes.en_US
dc.description.sectionheadersModels, Fitting, and Measurement
dc.description.seriesinformationWorkshop on Material Appearance Modeling
dc.identifier.doi10.2312/mam.20191306
dc.identifier.isbn978-3-03868-080-2
dc.identifier.issn2309-5059
dc.identifier.pages13-16
dc.identifier.urihttps://doi.org/10.2312/mam.20191306
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/mam20191306
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.3 [Computer Graphics]
dc.subjectComputing methodologies
dc.subjectReflectance modeling
dc.subjectRendering
dc.titleRendering Transparent Materials with a Complex Refractive Index: Semi-conductor and Conductor Thin Layersen_US
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MAM2019: Eurographics Workshop on Material Appearance Modeling