Real-Time Rendering and Editing of Vector-based Terrains

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dc.contributor.authorBruneton, Ericen_US
dc.contributor.authorNeyret, Fabriceen_US
dc.date.accessioned2015-02-21T16:18:43Z
dc.date.available2015-02-21T16:18:43Z
dc.date.issued2008en_US
dc.description.abstractWe present a method to populate very large terrains with very detailed features such as roads, rivers, lakes and fields. These features can be interactively edited, and the landscape can be explored in real time at any altitude from flight view to car view. We use vector descriptions of linear and areal features, with associated shaders to specify their appearance (terrain color and material), their footprint (effect on terrain shape), and their associated objects (bridges, hedges, etc.).In order to encompass both very large terrains and very fine details we rely on a view dependent quadtree refinement scheme. New quads are generated when needed and cached on the GPU. For each quad we produce on the GPU an appearance texture, a footprint texture, and some object meshes, based on the features vector description and their associated shaders. Adaptive refinement, procedural vector features and a mipmap pyramid provide three LOD mechanisms for small, medium and large scale quads. Our results and attached video show high performance with high visual quality.en_US
dc.description.number2en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume27en_US
dc.identifier.doi10.1111/j.1467-8659.2008.01128.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages311-320en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2008.01128.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titleReal-Time Rendering and Editing of Vector-based Terrainsen_US
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