Error-bounded GPU-supported terrain visualisation

Falko Loffler, S. Rybacki, H. Schumann
University of Rostock, Germany, Albert-Einstein-Strasse 21, 18055, Rostock
WSCG proceedings 2009 (2009) Pages: 47-54


   title={Error-bounded GPU-supported terrain visualisation},

   author={L{\”o}ffler, F. and Rybacki, S. and Schumann, H.},

   journal={WSCG’09 Communication Papers Proceedings},




Download Download (PDF)   View View   Source Source   



The interactive visualisation of digital terrain datasets deals with their interrelated issues: quality, time and resources. In this paper a GPU-supported rendering technique is introduced, which finds a tradeoff between these issues. For this we use the projective grid method as the foundation. Even though the method is simple and powerful, its most significant problem is the loss of relevant features. Our contribution is a definition of a view-dependent grid distribution on the view-plane and an error-bounded rendering. This leads to a better approximation of the original terrain surface compared to previous GPU-based approaches. A higher quality is achieved with respect to the grid resolution. Furthermore the combination with an error metric and ray casting enables us to render a terrain representation within a given error threshold. Hence, high quality interactive terrain rendering is guaranteed, without expensive preprocessing.
No votes yet.
Please wait...

* * *

* * *

HGPU group © 2010-2021 hgpu.org

All rights belong to the respective authors

Contact us: