Temporal continuity of levels of detail in Delaunay triangulated terrain
- 24 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 17, 37-42
- https://doi.org/10.1109/visual.1996.567600
Abstract
The representation of a scene at different levels of detail is necessary to achieve real-time rendering. In aerial views, only the part of the scene that is close to the viewing point needs to be displayed with a high level of detail, while more distant parts can be displayed with a low level of detail. However, when a sequence of images is generated and displayed in real-time, the transition between different levels of detail causes noticeable temporal aliasing. In this paper, we propose a method, based on object blending, that visually softens the transition between two levels of Delaunay triangulation. We present an algorithm that establishes, in an off-line process, a correspondence between two given polygonal objects. The correspondence enables on-line blending between two representations of an object, so that one representation (level of detail) progressively evolves into the other.Keywords
This publication has 9 references indexed in Scilit:
- IRIS performerPublished by Association for Computing Machinery (ACM) ,1994
- Adaptive display algorithm for interactive frame rates during visualization of complex virtual environmentsPublished by Association for Computing Machinery (ACM) ,1993
- NPSNET: Hierarchical data structures for real-time three-dimensional visual simulationComputers & Graphics, 1993
- Shape transformation for polyhedral objectsACM SIGGRAPH Computer Graphics, 1992
- Decimation of triangle meshesPublished by Association for Computing Machinery (ACM) ,1992
- Hierarchical triangulation using cartographic coherenceCVGIP: Graphical Models and Image Processing, 1992
- Visibility preprocessing for interactive walkthroughsACM SIGGRAPH Computer Graphics, 1991
- Simplification of objects rendered by polygonal approximationsComputers & Graphics, 1991
- A pyramidal data structure for triangle-based surface descriptionIEEE Computer Graphics and Applications, 1989