What is the Reddening Effect and does it really exist? (Unknown language)

In: Workshop on Material Appearance Modeling   ;  27-30  ;  2019

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The simulation of light-matter interaction is a major challenge in computer graphics. Particularly challenging is the modelling of light-matter interaction of rough surfaces, which contain several different scales of roughness where many different scattering phenomena take place. There are still appearance critical phenomena that are weakly approximated or even not included at all by current BRDF models. One of these phenomena is the reddening effect, which describes a tilting of the reflectance spectra towards long wavelengths especially in the specular reflection. The observation that the reddening effect takes place on rough surfaces is new and the characteristics and source of the reddening effect have not been thoroughly researched and explained. Furthermore, it was not even clear whether the reddening really exists or the observed effect resulted from measurement errors. In this work we give a short introduction to the reddening effect and show that it is indeed a property of the material reflectance function, and does not originate from measurement errors or optical aberrations.

Table of contents conference proceedings

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Spectral Rendering with the Bounded MESE and sRGB Data
Peters, Christoph / Merzbach, Sebastian / Hanika, Johannes / Dachsbacher, Carsten | 2019
Fresnel Equations Considered Harmful
Hoffman, Naty | 2019
Rendering Transparent Materials with a Complex Refractive Index: Semi-conductor and Conductor Thin Layers
Gerardin, Morgane / Holzschuch, Nicolas / Martinetto, Pauline | 2019
Comparative Study of Layered Material Models
Bati, Mégane / Pacanowski, Romain / Barla, Pascal | 2019
Estimating Homogeneous Data-driven BRDF Parameters from a Reflectance Map under Known Natural Lighting
Cooper, Victoria L. / Bieron, James C. / Peers, Pieter | 2019
What is the Reddening Effect and does it really exist?
Clausen, Olaf / Marroquim, Ricardo / Fuhrmann, Arnulph / Weigand, Holger | 2019
On Visual Attractiveness of Anisotropic Effect Coatings
Filip, Jiří / Kolafová, Martina | 2019
Neural Appearance Synthesis and Transfer
Mazlov, Ilya / Merzbach, Sebastian / Trunz, Elena / Klein, Reinhard | 2019