The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Efficient culling techniques for interactive deformable NURBS surfaces on GPU

På svenska

Author

Summary, in English

NURBS (Non-uniform rational B-splines) surfaces are the standard freeform representation in Computer- Aided Design (CAD) applications. Rendering NURBS surfaces accurately while they are interactively manipulated and deformed is a challenging task. In order to achieve it, the elimination from pipeline in early stages of back-facing surfaces or surface pieces is a key advantage. Furthermore, an effective interactive manipulation implies that all the culling computations should be performed for each frame, facing the possibility of fast changes in occlusion information. In this paper, different interactive culling strategies for NURBS surfaces are presented and analyzed. These culling techniques are based on the exploitation of the geometric properties presented in a NURBS surface, that allow easily to find bounds for it in screen space for each frame. Furthermore, the culling overhead for our proposals is small compared to the computational saving, outperforming a proposal without culling. An implementation of these strategies using current GPUs is presented, achieving real-time and interactive rendering rates of complex parametric models.

Publishing year

2016

Language

English

Pages

17-27

Publication/Series

VISIGRAPP 2016 - Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications

Document type

Conference paper

Publisher

SciTePress

Topic

  • Software Engineering

Keywords

  • Culling Techniques
  • Deformable Surfaces
  • NURBS
  • Real-time and Interactive Methods

Conference name

11th International Conference on Computer Graphics Theory and Application, GRAPP 2016; Part of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, VISIGRAPP 2016

Conference date

2016-02-27 - 2016-02-29

Conference place

Rome, Italy

Status

Published

ISBN/ISSN/Other

  • ISBN: 9789897581755