منابع مشابه
An Architecture for Accelerated Anisotropic Shading
A reflection model amenable to hardware is presented. An illumination equation and a shading algorithm to make use of the model are introduced as well. This method provides for a higher accuracy in modeling the reflective properties of real world surfaces. Analytic models that are prevalent today sometimes require one to be very knowledgeable about the model in order to use it effectively. They...
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There are a number of materials, like cloth, hair and brushed metal that exhibit anisotropic reflectance properties. Several illumination models have been proposed for shading of such materials. The model by Poulin and Fournier describes how hair, silk and material which can be modeled by parallel cylinders, can be rendered. It has been proposed recently how the topology for this model can vary...
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This paper presents a new system for the generation of video rate images from voxel based volume data, in which novel approaches have been applied to the problems of shading and lighting. The shading algorithm combines a three dimensional 3 3 3 window of voxels with look up table based shading. A restricted lighting and viewing model reduces calculation complexity without greatly affecting medi...
متن کاملA Non-local Approach to Shape from Ambient Shading
We study the mathematical and numerical aspects of the estimation of the 3-D shape of a Lambertian scene seen under diffuse illumination. This problem is known as “shape from ambient shading” (SFAS), and its solution consists of integrating a strongly non-local and non-linear Integro-Partial Differential Equation (I-PDE). We provide a first analysis of this global I-PDE, whereas previous work h...
متن کاملAmbient Volume Scattering — Supplemental Results
In this supplementary section, we qualitatively compare the illumination effects and the bias of ambient volume scattering with full global volume illumination. For comparison, we employ a CUDA-accelerated implementation of path tracing for participating media [1] with light source sampling to solve the radiative transfer equation accurately, using the same hardware as in the main paper (Intel ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Visualization and Computer Graphics
سال: 2016
ISSN: 1077-2626
DOI: 10.1109/tvcg.2015.2467963