Visualizing and Fabricating Complex Internal Structures
Visualisation et fabrication de structures internes complexes
Résumé
Additive manufacturing enables the fabrication of complex internal structures akin
to foams within shapes. These fine scale structures modify the large scale properties of the shape,
for instance making it lighter while preserving sufficient rigidity, or creating porosities enabling
fluids to traverse.
Triangle meshes are not well suited for modeling and visualizing such structures. Instead, several
approaches have been proposed to model them as implicit solids, described by an indicator function
returning 1 when a point lies within the solid and 0 outside. Such representations are very compact
in memory, however interactive visualization and efficient processing for fabrication can become
difficult. This stems from the fact that to visualize or fabricate the structure, the function must
be queried at a high sampling rate. This results in a slow and memory intensive process.
In this paper we discuss our approach for dealing with such complex structures in the context
of interactive modeling for additive manufacturing. We describe an algorithm for the progressive
rendering of the structures, as well as an efficient slicing procedure for preparing the geometries
for fabrication.
Origine : Fichiers produits par l'(les) auteur(s)
Loading...