Browsing Material Appearance Modeling by Title

Now showing items 49-68 of 70

    • Perception of Car Shape Orientation and Anisotropy Alignment 

      Filip, Jiri; Kolafová, Martina (The Eurographics Association, 2018)
      The color designers are used to introduce customized product design, visually communicating the unique impression of a car. They always carefully observe harmony of color and body shape to obtain desired visual impression. ...

    • Practical Experiences with Using Autocollimator for Surface Reflectance Measurement 

      Havran, Vlastimil (The Eurographics Association, 2016)
      We present our experiences with using an autocollimator to set up the surface reflectance measurement for both BRDF and BTF. Assuming the measured material appearance is put on a locally flat surface, the autocollimator ...

    • The Problem of Entangled Material Properties in SVBRDF Recovery 

      Saryazdi, Soroush; Murphy, Christian; Mudur, Sudhir (The Eurographics Association, 2020)
      SVBRDF (spatially varying bidirectional reflectance distribution function) recovery is concerned with deriving the material properties of an object from one or more images. This problem is particularly challenging when the ...

    • Proposal for an Appearance Exchange Format 

      Mueller, Gero; Lamy, Francis (The Eurographics Association, 2015)
      In this short paper X-Rite proposes a new file format for exchanging digital material appearance. The format is a vital part of X-Rite's appearance initiative consisting of a new generation of appearance capturing devices ...

    • Quality Assurance Based on Descriptive and Parsimonious Appearance Models 

      Nielsen, J. B.; Eiriksson, E. R.; Kristensen, R. L.; Wilm, J.; Frisvad, J. R.; Conradsen, K.; Aanæs, H. (The Eurographics Association, 2015)
      In this positional paper, we discuss the potential benefits of using appearance models in additive manufacturing, metal casting, wind turbine blade production, and 3D content acquisition. Current state of the art in ...

    • Reducing Anisotropic BSDF Measurement to Common Practice 

      Ward, Greg; Kurt, Murat; Bonneel, Nicolas (The Eurographics Association, 2014)
      We address the problem of measuring and representing reflection and transmission for anisotropic materials without relying on mathematical models or a large sample database. By eliminating assumptions of material behavior, ...

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

      Gerardin, Morgane; Holzschuch, Nicolas; Martinetto, Pauline (The Eurographics Association, 2019)
      During 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 ...

    • The Role of Visual Comparison Testing in Material Appearance Modeling 

      Meyer, Gary (The Eurographics Association, 2014)
      Material appearance modeling should involve end user testing. These tests can be visual comparison experiments where decisions made with real physical samples are compared with choices done using computer graphic simulations. ...

    • Scanning Gonio-Photometers for Asymmetric Acquisition of Fine-structured BSDF 

      Apian-Bennewitz, Peter (The Eurographics Association, 2014)
      Results of building and running out-of-plane scanning gonio-photometers for a number of years and projects are presented. Key concepts are a fast drive system and adaptive scan pattern to sample peaks at higher angular ...

    • A Short Survey on Optical Material Recognition 

      Weinmann, M.; Klein, R. (The Eurographics Association, 2015)
      The complexity of visual material appearance as observed in the huge variation in material appearance under different viewing and illumination conditions makes material recognition a highly challenging task. In the scope ...

    • A Simple Diffuse Fluorescent BBRRDF Model 

      Jung, Alisa; Hanika, Johannes; Marschner, Steve; Dachsbacher, Carsten (The Eurographics Association, 2018)
      Fluorescence - the effect of a photon being absorbed at one wavelength and re-emitted at another - is present in many common materials such as clothes and paper. Yet there has been little research in rendering or modeling ...

    • Sparse Sampling for Image-Based SVBRDF Acquisition 

      Yu, Jiyang; Xu, Zexiang; Mannino, Matteo; Jensen, Henrik Wann; Ramamoorthi, Ravi (The Eurographics Association, 2016)
      We acquire the data-driven spatially-varying (SV)BRDF of a flat sample from only a small number of images (typically 20). We generalize the homogenous BRDF acquisition work of Nielsen et al., who derived an optimal minmal ...

    • Spectral Rendering with the Bounded MESE and sRGB Data 

      Peters, Christoph; Merzbach, Sebastian; Hanika, Johannes; Dachsbacher, Carsten (The Eurographics Association, 2019)
      In a recent journal paper, we introduced a technique to represent reflectance spectra by an arbitrary number of Fourier coefficients. As a special case, we converted tristimulus data to three Fourier coefficients. After ...

    • Statistical Characterization of Surface Reflectance 

      Havran, Vlastimil; Sbert, Mateu (The Eurographics Association, 2014)
      The classification of surface reflectance functions as diffuse, specular, and glossy has been introduced by Heckbert more than two decades ago. Many rendering algorithms are dependent on such a classification, as different ...

    • A Taxonomy of Bidirectional Scattering Distribution Function Lobes for Rendering Engineers 

      McGuire, Morgan; Dorsey, Julie; Haines, Eric; Hughes, John F.; Marschner, Steve; Pharr, Matt; Shirley, Peter (The Eurographics Association, 2020)
      We propose a taxonomy and terminology for rendering engineers to use in describing the main categories of mathematical lobes that are combined to implement bidirectional scattering distribution functions (BSDFs). Bringing ...

    • Towards a Practical Gamut of Appearance Acquisition 

      Fuchs, M.; Koch, S.; Gieseke, L.; Mozer, F.; Eberhardt, B. (The Eurographics Association, 2013)
      We propose discussing the performance of appearance modeling in terms of supported material and illumination gamut. While we have a precise understanding of the cost of any given appearance modeling method, performance is ...

    • Towards a Principled Kernel Prediction for Spatially Varying BSSRDFs 

      Elek, Oskar; Krivánek, Jaroslav (The Eurographics Association, 2018)
      While the modeling of sub-surface translucency using homogeneous BSSRDFs is an established industry standard, applying the same approach to heterogeneous materials is predominantly heuristical. We propose a more principled ...

    • Towards Physically Based Material Appearance in the Thermal Infrared Spectrum: A Short Survey 

      Haraké, Laura; Burkard, Eva (The Eurographics Association, 2018)
      In the context of photorealistic rendering, global illumination mainly relies on material models from the visible spectrum, whereas thermal infrared signatures receive only little attention. This paper outlines physical ...

    • Towards Practical Rendering of Fiber-Level Cloth Appearance Models 

      Alejandre, Adrian; Aliaga, Carlos; Marco, Julio; Jarabo, Adrian; Muñoz, Adolfo (The Eurographics Association, 2018)
      Accurate representation of realistic cloth appearance is of high importance in many industry fields such as entertainment and textile design. However, microstructure of fibers and their optical properties generate very ...

    • Towards Sparse and Multiplexed Acquisition of Material BTFs 

      Brok, Dennis den; Weinmann, Michael; Klein, Reinhard (The Eurographics Association, 2017)
      We present preliminary results on our effort to combine sparse and illumination-multiplexed acquisition of bidirectional texture functions (BTFs) for material appearance. Both existing acquisition paradigms deal with a ...