Interactive Out-Of-Core Texturing Using Point-Sampled Textures

Tamy Boubekeur (1, 2) , Christophe Schlick (1, 2)

1 IPARLA - Visualization and manipulation of complex data on wireless mobile devices
2 LaBRI - Laboratoire Bordelais de Recherche en Informatique

The visualization of huge 3D objects becomes available on common workstations thanks to highly optimized data-structures and out-of-core frameworks for rendering. However, the editing, and in particular, the texturing of such objects is still a challenging task, since usual methods for optimized rendering are not easily amenable to interactive modification. In this paper, we introduce the idea of point-sampled textures, and show how to interactively texture such a huge model at various scales, without any parameterization. An adaptive in-core point-based approximated geometry is first created by employing an efficient out-of-core point-sampling algorithm. This simplified geometry is then used for an interactive and multi-scale point-based texturing. Finally, a feature-preserving kernel is used to convert the point-based model into a global 3D texture which can be applied back on the initial huge geometry. Our technique thus provides a flexible tool to generate, edit and apply size-independent textures to a wide range of huge 3D objects thanks to point-based methods.

Mots clés: out-of-core texturing; interactive editing; large models; point-based graphics

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]

Tamy Boubekeur, Christophe Schlick. Interactive Out-Of-Core Texturing Using Point-Sampled Textures. EUROGRAPHICS Symposium on Point-Based Graphics, Jul 2006, Boston, United States. ⟨inria-00260837⟩