Crack-free rendering of dynamically tesselated B-Rep models

Abstract : We propose a versatile pipeline to render B-Rep models interactively, precisely and without rendering-related artifacts such as cracks. Our rendering method is based on dynamic surface evaluation using both tesselation and ray-casting, and direct GPU surface trimming. An initial rendering of the scene is performed using dynamic tesselation. The algorithm we propose reliably detects then fills up cracks in the rendered image. Crack detection works in image space, using depth information, while crack-filling is either achieved in image space using a simple classification process, or performed in object space through selective ray-casting. The crack filling method can be dynamically changed at runtime. Our image space crack filling approach has a limited runtime cost and enables high quality, real-time navigation. Our higher quality, object space approach results in a rendering of similar quality than full-scene ray-casting, but is 2 to 6 times faster, can be used during navigation and provides accurate, reliable rendering. Integration of our work with existing tesselation-based rendering engines is straightforward.
Type de document :
Article dans une revue
Computer Graphics Forum, Wiley, 2014, 33 (2), pp.10
Liste complète des métadonnées

Littérature citée [15 références]  Voir  Masquer  Télécharger
Contributeur : Loïc Barthe <>
Soumis le : lundi 6 janvier 2014 - 20:58:35
Dernière modification le : mercredi 12 septembre 2018 - 17:46:04
Document(s) archivé(s) le : jeudi 10 avril 2014 - 17:45:30


Fichiers produits par l'(les) auteur(s)


  • HAL Id : hal-00922660, version 2



Frédéric Claux, Loïc Barthe, David Vanderhaeghe, Jean-Pierre Jessel, Mathias Paulin. Crack-free rendering of dynamically tesselated B-Rep models. Computer Graphics Forum, Wiley, 2014, 33 (2), pp.10. 〈hal-00922660v2〉



Consultations de la notice


Téléchargements de fichiers