Results 11 to 20 of about 2,313 (216)
Interactive Rendering of NURBS Surfaces [PDF]
[Abstract] NURBS (Non-uniform rational B-splines) surfaces are one of the most useful primitives employed for high quality modeling in CAD/CAM tools and graphics software. Since direct evaluation of NURBS surfaces on the GPU is a highly complex task, the
Concheiro, Raquel +3 more
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Efficient rendering of trimmed NURBS surfaces
An algorithm for the interactive display of trimmed nurbs surfaces is presented. The algorithm converts the nurbs surfaces to Bézier surfaces, and nurbs trimming curves toBézier curves.
Kumar, Subodh +5 more
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The multivariate quartic NURBS surfaces
In this paper, we construct a kind of multivariate quartic nonuniform rational B-spline (NURBS) surfaces by using bivariate quartic B-spline bases in the multivariate spline space S42(△mn(2)), and discuss some properties of this kind of NURBS surfaces ...
Li, Chong-Jun, Wang, Ren-Hong
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NURBS-compatible subdivision surfaces
Two main technologies are available to design and represent freeformsurfaces: Non-Uniform Rational B-Splines (NURBS) and subdivision surfaces. Both representations are built on uniform B-splines, but they extend this foundation in incompatible ways, and ...
Cashman, Thomas J.
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UTD computation for NURBS surfaces
S.669-672One of the main problems in computing the UTD surface diffracted fields on surfaces described by Non-Uniform Rational B-splines (NURBS) is due to the difficulty in determining the geodesic paths the electromagnetic waves takes along the surface.
Toccafondi, A. +2 more
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Interactive Rendering of Deforming NURBS Surfaces
The non-uniform rational B-splines (NURBS) has been widely accepted as a standard tool for geometry representation and design. Its rich geometric properties allow it to represent both analytic shapes and free-form curves and surfaces precisely. Moreover,
Li, Frederick +5 more
core +3 more sources
Adaptive tessellation of NURBS surfaces [PDF]
NURBS surfaces are widely used in computer graphics, due to their great accuracy of design and reduced amount of data needed for representation. For real-time visualization, tessellation algorithms are needed, as they make use of the actual graphics ...
Bruguera, J. D. +3 more
core +1 more source
Quasi-isotropic initial triangulation of NURBS surfaces [PDF]
Isotropic triangulation of NURBS surfaces provides high quality triangular meshes, where all triangles are equilateral. This isotropy increases representation quality and analysis accuracy.
Cardoso, RP +4 more
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Conversion of trimmed NURBS surfaces to Catmull-Clark subdivision surfaces
This paper introduces a novel method to convert trimmed NURBS surfaces to untrimmed subdivision surfaces with Bézier edge conditions. We take a NURBS surface and its trimming curves as input, from this we automatically compute a base mesh, the limit ...
Shen, Jingjing +6 more
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Triangulating Trimmed NURBS Surfaces
This paper describes techniques for the piecewise linear approximation of trimmed NURBS surfaces. The problem, called surface triangulation, arises from any application in CAD and graphics.
Shu, Chang, Boulanger, Pierre
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