Results 101 to 110 of about 5,784 (209)

Correction to: Techniques for BRDF evaluation [PDF]

open access: yesThe Visual Computer, 2021
Mislene Da Silva Nunes   +3 more
openaire   +1 more source

An Overview of BRDF Models [PDF]

open access: yes, 2012
This paper is focused on the Bidirectional Reflectance Distribution Function (BRDF) in the context of algorithms for computational production of realistic synthetic images.
Montes Soldado, Rosa Ana   +1 more
core   +1 more source

VMF Diffuse: A Unified Rough Diffuse BRDF

open access: yes
We present a practical analytic BRDF that approximates scattering from a generalized microfacet volume with a von Mises- Fischer NDF. Our BRDF seamlessly blends from smooth Lambertian, through moderately rough height fields with Beckmannlike statistics ...
d'Eon, Eugene, Weidlich, Andrea
core   +1 more source

BRDF-Shop: An artistic tool for creating physically correct BRDFs

open access: yes, 2008
Figure 1: The BRDF-Shop interface consists of a spherical canvas, where the artist can directly paint highlights and design a unique BRDF, (middle), and simultaneously and in real-time inspect the designed BRDF on a complex model rendered under ...
Sumanta Pattanaik, Mark Colbert
core  

In Praise of an Alternative BRDF Parametrization.

open access: yes, 2015
In this paper, we extend the work of Neumann et al. [NNSK99] and Stark et al. [SAS05] to a pair of 4D BRDFparameterizations with explicit changes of variables. We detail their mathematical properties and relationships tothe commonly-used halfway/difference parametrization, and discuss their benefits and drawbacks using a few an-alytical test functions ...
Barla, Pascal   +2 more
openaire   +2 more sources

Generating Reflected Directions from BRDF Data

open access: yes, 1997
Monte-Carlo path tracing algorithms for computer graphics require that given an incident light ray at a surface an outgoing direction can be computed with a distribution given by the magnitude of the bidirectional reflectance distribution function (BRDF).
Alain Fournier, Paul Lalonde
core  

Evaluation of MODIS and VIIRS BRDF Parameter Differences and Their Impacts on the Derived Indices

open access: yesRemote Sensing
Multi-angle remote sensing observations play an important role in the remote sensing of solar radiation absorbed by land surfaces. Currently, the Moderate Resolution Imaging Spectroradiometer (MODIS) and Visible Infrared Imaging Radiometer Suite (VIIRS ...
Chenxia Wang   +9 more
doaj   +1 more source

Snow BRDF characteristics from MODIS and MISR data

open access: yes, 2011
This paper explores snow bidirectional reflectance distribution function (BRDF) properties over some snow covered regions using Moderate Resolution Imaging Spectroradiometer (MODIS) and Multi-angle Imaging SpectroRadiometer (MISR) surface reflectance ...
Wu, Hongyi   +7 more
core   +1 more source

Feature Article BRDF-Shop: Creating Physically Correct Bidirectional

open access: yes, 2008
Amajority of the artists in the graphics community use one of the mainstream packages for modeling and designing a scene for 3D rendering. These packages—such as Alias ’ Maya, Discreet’s 3ds Max, or Newtek’s Lightwave—provide slider bars and numerical ...

core  

Virtual gonio-spectrophotometer for validation of BRDF designs

open access: yesOpen Physics, 2011
Mihálik Andrej, Ďurikovič Roman
doaj   +1 more source

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