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Large‐Scale Pixel‐Precise Deferred Vector Maps
Author(s) -
Thöny Matthias,
Billeter Markus,
Pajarola Renato
Publication year - 2018
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/cgf.13294
Subject(s) - rendering (computer graphics) , computer science , computer graphics (images) , visualization , terrain rendering , pixel , vector map , real time rendering , computer vision , image based modeling and rendering , 3d rendering , artificial intelligence , tiled rendering , terrain , software rendering , computer graphics , geography , cartography , 3d computer graphics
Rendering vector maps is a key challenge for high‐quality geographic visualization systems. In this paper, we present a novel approach to visualize vector maps over detailed terrain models in a pixel‐precise way. Our method proposes a deferred line rendering technique to display vector maps directly in a screen‐space shading stage over the 3D terrain visualization. Due to the absence of traditional geometric polygonal rendering, our algorithm is able to outperform conventional vector map rendering algorithms for geographic information systems, and supports advanced line anti‐aliasing as well as slope distortion correction. Furthermore, our deferred line rendering enables interactively customizable advanced vector styling methods as well as a tool for interactive pixel‐based editing operations.