Browsing Material Appearance Modeling by Issue Date
Now showing items 1-20 of 70
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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 ... -
DOME II: A Parallelized BTF Acquisition System
(The Eurographics Association, 2013)Bidirectional Texture Functions (BTFs) provide a realistic depiction of the appearance of many real-world materials as they contain the spatially varying light scattering behavior of the material surface. Since editing of ... -
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 ... -
From Color to Appearance in the Real World
(The Eurographics Association, 2013)X-Rite's declared ambition is to create a digital ecosystem for appearance; a daunting challenge that has many dimensions and has not been accomplished so far. In this short paper we sketch a path from color to full ... -
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 ... -
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 ... -
Interactive Appearance Design in the Presence of Optically Complex
(The Eurographics Association, 2013)In this position paper, we discuss the usability of different material representations for interactive appearance design in the context of visual prototyping. We emphasize the importance of methods explicitly considering ... -
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, ... -
ALTA: A BRDF Analysis Library
(The Eurographics Association, 2014)In this document, we introduce ALTA, a cross platform generic open-source library for Bidirectional Reflectance Distribution Function (BRDF) analysis. Among others, ALTA permits to estimate BRDF models parameters from ... -
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 ... -
The Role of Visual Comparison Testing in Material Appearance Modeling
(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
(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 ... -
Linear Transport Theory and Applications to Rendering
(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 MAM2014 Sample Set
(The Eurographics Association, 2014)Modeling the material appearance of physical materials requires access to the materials. Sets of identical physical material models were prepared for distribution at the workshop on material appearance modeling 2014 ... -
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 ... -
Identifying Diffraction Effects in Measured Reflectances
(The Eurographics Association, 2015)There are two different physical models connecting the micro-geometry of a surface and its physical reflectance properties (BRDF). The first, Cook-Torrance, assumes geometrical optics: light is reflected and masked by the ... -
Linear Models for Material BTFs and Possible Applications
(The Eurographics Association, 2015)Due to the richness of real-world materials, arguably one of the biggest challenges in rendering is to come up with models that describe their appearance well. The image-based bidirectional texture function (BTF) is known ... -
In Praise of an Alternative BRDF Parametrization
(The Eurographics Association, 2015)In this paper, we extend the work of Neumann et al. [NNSK99] and Stark et al. [SAS05] to a pair of 4D BRDF parameterizations with explicit changes of variables. We detail their mathematical properties and relationships to ... -
Proposal for an Appearance Exchange Format
(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 ... -
The Material Definition Language
(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 ...