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Etat de l'art des méthodes d'interpolation locale de maillages triangulaires par des facettes non-planes C 0 -continues
| Content Provider | Semantic Scholar |
|---|---|
| Author | Boschiroli, Maria Fünfzig, Christoph Romani, Lucia Albrecht, Gudrun |
| Copyright Year | 2009 |
| Abstract | Depuis la fin des annees 1980, le probleme de l’interpolation parametrique de points et de normales sur des maillages triangulaires a ete etudie afin de modeliser des surfaces de type topologique arbitraire. En particulier, l’interpolation locale par des facettes parametriques triangulaires et non-planes est un sujet d’actualite en raison de la difficulte pour obtenir des formes lisses et sans ondulations. La localisation des donnees est extremement importante dans certaines applications telles que l’informatique graphique utilisee pour le jeux video et pour le rendu en temps reel. Des schemas produisant des surfaces interpolantes continues bases sur des facettes triangulaires non-planes sont apparus recemment afin de repondre aux conditions specifiques d’environnements de hardware limites en ressources. Ces methodes ameliorent la qualite visuelle de la surface C 0 en utilisant uniquement des informations locales. Dans cet article, nous presentons un survol des methodes de ce type recemment developpees en discutant leur construction originale ainsi qu’en donnant leur formulation Bezier. Nous comparons les differentes surfaces construites par les methodes considerees pour des maillages grossiers qui caracterisent en fait leurs utilisations concretes. Since the end of the 1980’s, parametric interpolation of points and normals over triangular meshes has been investigated to answer the problem of modeling two-manifold surfaces of arbitrary topological type. In particular, local parametric curved shape interpolation is a problem of ongoing research, since it is difficult to obtain surfaces with fair and smooth shapes. Locality of data is extremely important in some applications, for instance in computer graphics used for gaming and real time rendering. Continuous interpolant curved shape schemes recently emerged to address specific requirements of resource-limited hardware environments and to offer smooth surfaces by visually enhancing the resulting C 0 surface using only local information. In this paper we present a survey on the recently developed continuous surface schemes discussing their original construction and then comparing them from a geometric point of view in Bezier patch form. We compare the different surfaces constructed by the schemes for low triangle count meshes that actually correspond to their real-world utilization. |
| Starting Page | 39 |
| Ending Page | 47 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://boa.unimib.it/retrieve/handle/10281/8429/9992/Test_AFIG.pdf |
| Alternate Webpage(s) | http://www.matapp.unimib.it/~boschiroli/articles/Test_AFIG.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
