Re-Tiling Polygonal Surfaces

Re-Tiling Polygonal Surfaces (1992)

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by Greg Turk

Venue:	Computer Graphics
Citations:	358 - 2 self

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Datum	Value	Source
TITLE	Re-Tiling Polygonal Surfaces	user correction - Legacy Corrections
AUTHOR NAME	Greg Turk	SVM HeaderParse 0.1
AUTHOR AFFIL	Department of Computer Science; University of North Carolina at Chapel Hill	SVM HeaderParse 0.2
ABSTRACT	This paper presents an automatic method of creating surface models at several levels of detail from an original polygonal description of a given object. Representing models at various levels of detail is important for achieving high frame rates in interactive graphics applications and also for speeding-up the off-line rendering of complex scenes. Unfortunately, generating these levels of detail is a time-consuming task usually left to a human modeler. This paper shows how a new set of vertices can be distributed over the surface of a model and connected to one another to create a re-tiling of a surface that is faithful to both the geometry and the topology of the original surface. Themain contributions of this paper are: 1) a robust method of connecting together new vertices over a surface, 2) a way of using an estimate of surface curvature to distribute more new vertices at regions of higher curvature and 3) a method of smoothly interpolating between models that represent the same object at different levels of detail. The key notion in the re-tiling procedure is the creation of an intermediate model called the mutual tessellation of a surface that contains both the vertices from the original model and the new points that are to become vertices in the re-tiled surface. The new model is then created by removing each original vertex and locally re-triangulating the surface in a way that matches the local connectedness of the initial surface. This technique for surface retessellation has been successfully applied to iso-surface models derived from volume data, Connolly surface molecular models and a tessellation of a minimal surface of interest to mathematicians. CRCategoriesandSubjectDescriptors: I.3.3 [ComputerGraph- ics]: Picture/Image Generation -- Display algorithms	user correction - Legacy Corrections
YEAR	1992	INFERENCE
VENUE	Computer Graphics	INFERENCE
VENUE TYPE	CONFERENCE	INFERENCE
PAGES	55--64	INFERENCE
VOLUME	26	INFERENCE
CITATIONS	15 found	ParsCit 1.0