Spherical Terrain Rendering using the hierarchical HEALPix grid

Westerteiger, Rolf; Gerndt, Andreas; Hamann, Bernd

doi:10.4230/OASIcs.VLUDS.2011.13

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Spherical Terrain Rendering using the hierarchical HEALPix grid

Authors Rolf Westerteiger, Andreas Gerndt, Bernd Hamann

Part of: Volume: Visualization of Large and Unstructured Data Sets: Applications in Geospatial Planning, Modeling and Engineering - Proceedings of IRTG 1131 Workshop 2011 (VLUDS 2011)
Part of: Series: Open Access Series in Informatics (OASIcs)
License: Creative Commons Attribution-NoDerivs 3.0 Unported license
Publication Date: 2012-10-16

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OASIcs.VLUDS.2011.13.pdf

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DOI: 10.4230/OASIcs.VLUDS.2011.13
URN: urn:nbn:de:0030-drops-37389

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terrain rendering

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Abstract

We present an interactive spherical terrain rendering system employing a hierarchical subdivision of the HEALPix coordinate system using quadtrees. Compared to other parameterizations, the scheme avoids singularities and allows for efficient fusion of mixed-resolution digital elevation models and imagery. A Level-of-Detail heuristic is used to guarantee both high performance and visual fidelity. Unified treatment of DEM and imagery data is achieved by performing the HEALPix projection within a GPU shader. The system is applied to the exploration of Mars, using both MOLA (NASA) and HRSC (German Aerospace Center) data sets.

Cite As Get BibTex

Rolf Westerteiger, Andreas Gerndt, and Bernd Hamann. Spherical Terrain Rendering using the hierarchical HEALPix grid. In Visualization of Large and Unstructured Data Sets: Applications in Geospatial Planning, Modeling and Engineering - Proceedings of IRTG 1131 Workshop 2011. Open Access Series in Informatics (OASIcs), Volume 27, pp. 13-23, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012) https://doi.org/10.4230/OASIcs.VLUDS.2011.13

Author Details

Rolf Westerteiger

Andreas Gerndt

Bernd Hamann

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