Results 221 to 230 of about 49,371 (261)

Reflection and Refraction on Implicit Surfaces

Journal of Computer Science and Technology, 2006
Implicit surfaces are often used in computer graphics. They can be easily modeled and rendered, and many objects are composed of them in our daily life. In this paper, based on the concept of virtual objects, a novel method of real-time rendering is presented for reflection and refraction on implicit surface.
Wei Hu, Kaihuai Qin, Huawei Wang, Ya-Feng Li   +3 more
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Variational implicit surface meshing [PDF]

Computers and Graphics, 2009
In this paper, we propose a new algorithm to mesh implicit surfaces which produces meshes both with a good triangle aspect ratio as well as a good approximation quality. The number of vertices of the output mesh is defined by the end-user. For this goal, we perform a two-stage processing : an initialization step followed by an iterative optimization ...
Sébastien Valette, Wieslaw Nowinski, Arnaud Gelas   +2 more
exaly   +3 more sources

Ridges and ravines on implicit surfaces

Proceedings. Computer Graphics International (Cat. No.98EX149), 2002
Surface creases provide us with important information about the shapes of objects and can be intuitively defined as curves on a surface along which the surface bends sharply. Our mathematical description of such surface creases is based on a study of extrema of the principal curvatures along their curvature lines.
Alexander G. Belyaev, Alexander A. Pasko, Tosiyasu L. Kunii   +2 more
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Implicit representation of molecular surfaces

2012 IEEE Pacific Visualization Symposium, 2012
Molecular surfaces are an established tool to analyze and to study the evolution and interaction of molecules. One of the most advanced representations of molecular surfaces is called the solvent excluded surface. We present a novel and a simple method for representing the solvent excluded surfaces (SES).
Július Parulek, Ivan Viola
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Interval Implicitization of Parametric Surfaces

2010
The interval implicit representations of parametric surfaces have wide applications in Computer Graphics, Geometric Modelling, and others. Based on the properties of interval algebraic surfaces, barycentric coordinates and Bernstein basis functions, this paper presents an algorithm to compute the interval implicit representation of a rational Bezier ...
Ning Li, Jing Jiang 0016, Wenfeng Wang
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Implicitizing ruled translational surfaces

Computer Aided Geometric Design, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Haohao Wang, Ron Goldman 0002
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Rendering the intersections of implicit surfaces

IEEE Computer Graphics and Applications, 2003
We present algorithms for rendering the intersection curves of implicit surfaces using octree-based recursive space subdivision techniques. Interval techniques used during the subdivision process increase the algorithms' robustness.
Suffern, K, Balsys, Ronald
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An Efficient Visualization of Implicit Surfaces

2008 International Conference on Computer Science and Software Engineering, 2008
In this paper, we present a novel rendering algorithm for implicit surfaces by using a particle system. First, an alternative initial technique based on bundles of parallel lines is used to find initial points that are evenly distributed on the surface. Because of its characteristics, the usual split-and-death criterion of particle system is not needed.
Jun Yang 0005, Qi Xing, Changqian Zhu
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An evaluation of implicit surface tilers

IEEE Computer Graphics and Applications, 1993
The authors review the principal algorithms for the polygonization of implicit surfaces and provide a framework for identifying their conceptual similarities and practical differences. The algorithms' merits are evaluated according to topological disambiguation, implementation complexity, and triangle count.
Paul Ning, Jules Bloomenthal
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Anisotropic meshing of implicit surfaces

International Conference on Shape Modeling and Applications 2005 (SMI' 05), 2006
This paper proposes a new grid-based method for adaptive anisotropic meshing of implicit surfaces. Grid-based methods are considered the major technique for implicit surface meshing, mainly due to their efficiency and simplicity. However, these methods suffer from a number of inherent drawbacks, resulting from the fact that the imposed Cartesian grid ...
Sergei Azernikov, Anath Fischer
openaire   +1 more source