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» On the geometry of parametrized bicubic surfaces
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JSC
2007
63views more  JSC 2007»
14 years 10 months ago
On the geometry of parametrized bicubic surfaces
We start the study of the problem of describing the double point locus of a bicubic surface. Our motivation is to determine, whether a real bicubic patch over the unit square will...
André Galligo, Michael Stillman
SGP
2003
15 years 3 days ago
Smooth Geometry Images
Previous parametric representations of smooth genus-zero surfaces require a collection of abutting patches (e.g. splines, NURBS, recursively subdivided polygons). We introduce a s...
Frank Losasso, Hugues Hoppe, Scott Schaefer, Joe D...
SIGGRAPH
1998
ACM
15 years 3 months ago
Exact Evaluation of Catmull-Clark Subdivision Surfaces at Arbitrary Parameter Values
In this paper we disprove the belief widespread within the computer graphics community that Catmull-Clark subdivision surfaces cannot be evaluated directly without explicitly subd...
Jos Stam
PG
2007
IEEE
15 years 5 months ago
Extending Catmull-Clark Subdivision and PCCM with Polar Structures
We complete and bring together two pairs of surface constructions that use polynomial pieces of degree (3,3) to associate a smooth surface with a mesh. The two pairs complement ea...
Ashish Myles, Kestutis Karciauskas, Jörg Pete...
CAD
1998
Springer
14 years 10 months ago
Knot-removal surface fairing using search strategies
Abstract. This paper presents two automatic fairing algorithms for parametric C2 -continuous bi-cubic B-spline surfaces. The fairing method consists of a knot removal and knot rein...
Stefanie Hahmann, Stefan Konz