Crack-free rendering of dynamically tesselated B-rep models

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 sce...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Computer graphics forum Jg. 33; H. 2; S. 263 - 272
Hauptverfasser: Claux, Frédéric, Barthe, Loïc, Vanderhaeghe, David, Jessel, Jean-Pierre, Paulin, Mathias
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Oxford Blackwell Publishing Ltd 01.05.2014
Wiley
Schlagworte:
Analysis
Categories and Subject Descriptors (according to ACM CCS)
Computer graphics
Computer Science
Cracks
Dynamics
Flaw detection
Graphics
I.3.3 [Computer Graphics]: Picture/Image Generation-Display algorithms
I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling-Boundary representations
Image detection
Image processing systems
Mathematical models
Navigation
Rendering
Run time (computers)
Studies
Fast rendering of massive B-REP models
Computer Aided Geometric Design
3D computer graphics
ISSN:0167-7055, 1467-8659
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.
Bibliographie:ArticleID:CGF12308
Supporting InformationSupporting InformationSupporting InformationSupporting InformationSupporting InformationSupporting InformationSupporting InformationSupporting InformationSupporting InformationSupporting InformationSupporting Information
istex:D82E64832464EAC1BB4FF06B7BC3B540EA98219E
ark:/67375/WNG-8T1CRFF4-P
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ObjectType-Article-2
content type line 23
ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.12308