Concept
Specularity
Publications associées (11)
Light Path Gradients for Forward and Inverse Rendering
Physically based rendering is a process for photorealistic digital image synthesis and one of the core problems in computer graphics. It involves simulating the light transport, i.e. the emission, propagation, and scattering of light through a virtual scen ...
EPFL2021Path Replay Backpropagation: Differentiating Light Paths using Constant Memory and Linear Time
Wenzel Alban Jakob, Delio Aleardo Vicini, Sébastien Nicolas Speierer
Differentiable physically-based rendering has become an indispensable tool for solving inverse problems involving light. Most applications in this area jointly optimize a large set of scene parameters to minimize an objective function, in which case revers ...
ASSOC COMPUTING MACHINERY2021Texture mapping and IFC material retrievement for virtual reality applications
Sergi Aguacil Moreno, Laurent Deschamps, Sebastian Duque Mahecha, Alexandre Denis Stoll
Most current software support the Industry Foundation Classes (IFC) transfer of Building Information Models (BIMs) to applications enabling Virtual Reality (VR) navigation (BuildingSMART, 2020; Kiviniemi, Tarandi, Karlshøj, Bell, and Karud, 2008; Poljanšek ...
2021Accurate recovery of a specularity from a few samples of the reflectance function
Martin Vetterli, Ivan Dokmanic, Loïc Arnaud Baboulaz, Gilles Baechler
We present a new technique for estimating the specular peak of the bidirectional reflectance distribution function (BRDF) based on finite rate of innovation (FRI) sampling. The specular component of the BRDF varies rapidly, so it is challenging to acquire ...
Ieee2016Caustic Art
The computation of caustics created by reflection or refraction of light is a well-studied problem in computer graphics. This paper investigates the inverse problem: Given a greyscale intensity image, find the shape of a surface that will cast a caustic th ...
2012Tone mapping for high dynamic range images
Tone mapping is an essential step for the reproduction of "nice looking" images. It provides the mapping between the luminances of the original scene to the output device's display values. When the dynamic range of the captured scene is smaller or larger t ...
EPFL2006Étude des fondements physiques possibles des concepts numériques utilisés dans les méthodes d'acoustique géométrique
The subject of the work presented here is the study of the acoustical ray method, which aims at describing a pressure field by an analogy with light rays. The concept of a wave is therefore replaced by the concept of "acoustical rays", whose paths through ...
EPFL2006