Browsing Material Appearance Modeling by Title
Now showing items 53-70 of 70
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Quality Assurance Based on Descriptive and Parsimonious Appearance Models
(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
(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
(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
(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 ... -
A Short Survey on Optical Material Recognition
(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
(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
(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
(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 ... -
A Taxonomy of Bidirectional Scattering Distribution Function Lobes for Rendering Engineers
(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
(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
(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
(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
(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
(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 ... -
Weathering of Urban Scenes: Challenges and Possible Solutions
(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, ... -
What is the Reddening Effect and does it really exist?
(The Eurographics Association, 2019)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 ...