Browsing Material Appearance Modeling by Subject "I.3.7 [Computer Graphics]"
Now showing items 1-20 of 23
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Appearance of Interfaced Lambertian Microfacets, using STD Distribution
(The Eurographics Association, 2017)This paper presents the use of Student’s T-Distribution (STD) with interfaced Lambertian (IL) microfacets. The resulting model increases the range of materials while providing a very accurate adjustment of appearance. STD ... -
Bonn Appearance Benchmark
(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
(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
(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. ... -
Experimental Analysis of BSDF Models
(The Eurographics Association, 2017)The Bidirectional Scattering Distribution Function (BSDF) describes the appearance of an optically thin, translucent material by its interaction with light at a surface point. Various BSDF models have been proposed to ... -
Exploring Material Recognition for Estimating Reflectance and Illumination From a Single Image
(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
(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
(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
(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
(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 ... -
Interactive Appearance Prediction for Cloudy Beverages
(The Eurographics Association, 2016)Juice appearance is important to consumers, so digital juice with a slider that varies a production parameter or changes juice content is useful. It is however challenging to render juice with scattering particles quickly ... -
Iso Photographic Rendering
(The Eurographics Association, 2018)In the field of computer graphics, the simulation of the visual appearance of materials requires an accurate computation of the light transport equation. Consequently, material models need to take into account various ... -
Material Modeling with Physical Constraints
(The Eurographics Association, 2013)The workflows and interfaces of commercial rendering software are currently designed for believable rendering purposes. However, for predictive rendering other approaches are needed; for example, the usual approach to ... -
Neural Appearance Synthesis and Transfer
(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
(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
(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
(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, ... -
Spectral Rendering with the Bounded MESE and sRGB Data
(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
(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
(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 ...