Browsing Material Appearance Modeling by Subject "and texture"

Now showing items 1-20 of 21

    • Bonn Appearance Benchmark 

      Merzbach, Sebastian; Klein, Reinhard (The Eurographics Association, 2020)
      There is a general shortage of standardized comparisons in the field of appearance modeling. We therefore introduce a benchmark for assessing the quality of reflectance models on a dataset of high quality material measurements ...

    • BTF-based Material Representations: Current Challenges 

      Ruiters, R.; Klein, R. (The Eurographics Association, 2013)
      The development of Bidirectional Texture Functions (BTFs) has made it possible for a wide range of different materials to acquire their characteristic appearance from a real-world counterpart and reproduce it faithfully ...

    • Comparative Study of Layered Material Models 

      Bati, Mégane; Pacanowski, Romain; Barla, Pascal (The Eurographics Association, 2019)
      The accurate reproduction of layered materials is an important part of physically-based rendering applications. Since no exact analytical model exists for any configuration of layer stacks, available models make approximations. ...

    • Exploring Material Recognition for Estimating Reflectance and Illumination From a Single Image 

      Weinmann, Michael; Klein, Reinhard (The Eurographics Association, 2016)
      In this paper, we propose a novel approach for recovering illumination and reflectance from a single image. Our approach relies on the assumption that the surface geometry has already been reconstructed and a-priori knowledge ...

    • A Genetic Algorithm Based Heterogeneous Subsurface Scattering Representation 

      Kurt, Murat (The Eurographics Association, 2020)
      In this paper, we present a novel heterogeneous subsurface scattering (sss) representation, which is based on a combination of Singular Value Decomposition (SVD) and genetic optimization techniques. To find the best ...

    • Geometric Accuracy Analysis of Stationary BTF Gonioreflectometers 

      Havran, V. (The Eurographics Association, 2015)
      The accurate BTF data representation requires specialized measurement gantries, some of them designed as gonireflectometers. These consist of an illumination source and a camera mounted on two robotic arms, one degree of ...

    • Grand Challenges: Material Models in the Automotive Industry 

      Schregle, R.; Denk, C.; Slusallek, P.; Glencross, M. (The Eurographics Association, 2013)
      Material reflectance definitions are core to high fidelity visual simulation of objects within a compelling 3D scene. In the automotive industry these are used across the entire business process: from conceptualisation of ...

    • Improving Spectral Upsampling with Fluorescence 

      König, Lars; Jung, Alisa; Dachsbacher, Carsten (The Eurographics Association, 2020)
      Modern photorealistic rendering simulates spectral behaviour of light. Since many assets are still created in different RGB color spaces, spectral upsampling of the RGB colors to a spectral representation is required to ...

    • Linear Transport Theory and Applications to Rendering 

      Jakob, Wenzel (The Eurographics Association, 2014)
      In this talk, I will give an overview of one-dimensional Linear Transport Theory, which concerns itself with the study of random scattering and absorption processes and the inference of large-scale behavior from simple ...

    • The Material Definition Language 

      Kettner, L.; Raab, M.; Seibert, D.; Jordan, J.; Keller, A. (The Eurographics Association, 2015)
      We introduce the physically-based Material Definition Language (MDL). Based on the principle of strictly separating material definition and rendering algorithms, each MDL material is applicable across different rendering ...

    • Neural Appearance Synthesis and Transfer 

      Mazlov, Ilya; Merzbach, Sebastian; Trunz, Elena; Klein, Reinhard (The Eurographics Association, 2019)
      Appearance acquisition is a challenging problem. Existing approaches require expensive hardware and acquisition times are long. Alternative ''in-the-wild'' few-shot approaches provide a limited reconstruction quality. ...

    • On the Advancement of BTF Measurement on Site 

      Havran, Vlastimil; Hosek, Jan; Nemcova, Sarka; Cap, Jiri (The Eurographics Association, 2018)
      We present our progress to the on-site measurement of the spatially varying surface reflectance represented by bidirectional texture function (BTF). This requires a physical realization of a portable instrument that can ...

    • 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 ...

    • 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, ...

    • 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 ...

    • 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 ...

    • 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 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 ...

    • Weathering of Urban Scenes: Challenges and Possible Solutions 

      Muñoz-Pandiella, I.; Bosch, C.; Mérillou, N.; Pueyo, X.; Mérillou, S; Patow, G. (The Eurographics Association, 2016)
      In this paper, we propose to discuss on one of the main challenges in realistic rendering of urban scenes: changes in appearance over time within a urban context. After studying the previous work on weathering techniques, ...