Results 251 to 260 of about 58,290 (291)

Field functions for implicit surfaces

The Visual Computer, 1988
A technique of building 3D models from an iso-surface in a scalar field is discussed. One of the characteristics of this method - referred as the soft object of implicit surface method - is that a few primitives blend to form a complex surface. The shape of these primitives is given by a field function.
Brian Wyvill, Geoff Wyvill
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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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Polygonization of implicit surfaces

Computer Aided Geometric Design, 1988
The paper presents a computational technique for approximation of an implicit surface \(f(P)=0\), \(P\in {\mathbb{R}}^ 3\), with a polygonal representation. The function f is adaptively sampled surrounding it by a spatial partitioning. The technique proposed allows to deal with functions f characterized by great complexity. A number of test examples is
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Adaptive polygonization of implicit surfaces

Computers & Graphics, 2005
We present an algorithm for polygonizing closed implicit surfaces, which produces meshes adapted to the local curvature of the surface. Our method is similar to, but not based on, Marching Triangles, in that we start from a point on the surface and develop a mesh from that point using a surface-tracking approach. However, our approach works by managing
Bruno Rodrigues De Araújo, Joaquim Armando Pires Jorge   +1 more
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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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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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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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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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