Enhanced Reality Marine Parks


Map tile servers using the slippy map conventions provide interactive map visualizations for web applications. This investigation describes and evaluates a viewpoint sensitive level-of-detail algorithm that mixes slippy map tiles across zoom levels to generate landscape visualizations for table top VR/AR presentation. Elevation tiles across multiple zoom levels are combined to provide a continuous terrain mesh overlaid with image data sourced from additional tiles. The resulting application robustly deals with delays in loading high resolution tiles, and integrates unobtrusively with the game loop of a VR platform. Analysis of the process questions the assumptions behind slippy map conventions and recommends refinements that are both backward compatible and would further advance use of these map tiles for VR experiences. These refinements include: introducing tiles addressed by resolution, ensuring consistency between tiles at adjacent zoom levels, utilizing zoom values between the current integer levels and extending tile representations beyond the current raster and vector formats.


Conference Papers (peer reviewed)

[1] Shaun Bangay, Adam P A Cardilini, Nyree L Raabe, Kelly K Miller, Jordan Vincent, Greg Bowtell, Daniel Ierodiaconou, and Tanya King. Opportunities with slippy maps for terrain visualization in virtual and augmented reality. In Proceedings of the 17th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, volume 1, pages 139–146, February 2022. [PDF] [BibTeX]