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Generating and Rendering Large Scale Tiled Plant Populations

  • Generating and visualizing large areas of vegetation that look natural makes terrain surfaces much more realistic. However, this is a challenging field in computer graphics, because ecological systems are complex and visually appealing plant models are geometrically detailed. This work presents Silva (System for the Instantiation of Large Vegetated Areas), a system to generate and visualize large vegetated areas based on the ecological surrounding. Silva generates vegetation on Wang-tiles with associated reusable distributions enabling multi-level instantiation. This paper presents a method to generate Poisson Disc Distributions (PDDs) with variable radii on Wang-tile sets (without a global optimization) that is able to generate seamless tilings. Because Silva has a freely configurable generation pipeline and can consider plant neighborhoods it is able to incorporate arbitrary abiotic and biotic components during generation. Based on multi-levelinstancing and nested kd-trees, the distributions on the Wang-tiles allow their acceleration structures to be reused during visualization. This enables Silva to visualize large vegetated areas of several hundred square kilometers with low render times and a small memory footprint.

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Document Type:Article
Author:Martin Weier, André Hinkenjann, Georg Demme, Philipp Slusallek
Parent Title (English):Journal of Virtual Reality and Broadcasting
Publisher:Hochschule Duesseldorf
Publishing Institution:Hochschule Bonn-Rhein-Sieg
Date of first publication:2013/07/29
First presented at the Workshop of the GI VR/ARexperts group 2011, extended and revised for JVRB
Any party may pass on this Work by electronic means and make it available for download under the terms and conditions of the current versionof the Digital Peer Publishing Licence (DPPL). The text of the licence may be accessed and retrieved via Internet at http://www.dipp.nrw.de/lizenzen/dppl/dppl/DPPL_v2_de_06-2004.html
Keyword:Ecosystem simulation; Instantiation; Poisson Disc Distribution; Ray Tracing; Terrain rendering; Wang-tiles
Departments, institutes and facilities:Fachbereich Informatik
Institute of Visual Computing (IVC)
Dewey Decimal Classification (DDC):0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
Entry in this database:2015/04/02
Licence (German):License LogoDigital Peer Publishing Lizenz (Version 2, Deutsch)