Three-dimensional trees for virtual globes
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Other documents of the author: Rebollo Santamaría, Cristina; Remolar, Inmaculada; Gumbau Portalés, Jesús; Chover, Miguel
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comunitat-uji-handle2:10234/43662
comunitat-uji-handle3:10234/43643
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http://dx.doi.org/10.1080/17538947.2013.783126 |
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Title
Three-dimensional trees for virtual globesAuthor (s)
Date
2014Publisher
Taylor & FrancisBibliographic citation
REBOLLO SANTAMARÍA, Cristina; REMOLAR QUINTANA, Inmaculada; GUMBAU PORTALÉS, Jesús; CHOVER SELLÉS, Miguel. Three-dimensional trees for virtual globes. International Journal of Digital Earth (2014), v. 7, issue 10, pp. 789-810Type
info:eu-repo/semantics/articlePublisher version
http://www.tandfonline.com/doi/full/10.1080/17538947.2013.783126Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
One of the problems in virtual globes technologies is the real-time representation of vegetal species. In forest or garden representations, the low detailed plants produce a lack of realism. Efficient techniques are ... [+]
One of the problems in virtual globes technologies is the real-time representation of vegetal species. In forest or garden representations, the low detailed plants produce a lack of realism. Efficient techniques are required to achieve accurate interactive visualisation due to the great number of polygons the vegetal species have. This article presents a multi-resolution model based on a geometric representation of vegetal species that allows the application to perform the progressive transmission of the model, that is, the transmission of a simple representation followed by successive refinements of it. It has a hardware-oriented design in order to obtain interactive frame rates. The geometric data of the objects are stored in the graphics processing unit and, moreover, the change from one approximation to another is obtained by performing mathematical calculations in this graphics hardware. The multi-resolution model presented here enables instancing: as many vegetal species as desired can be rendered with different levels of detail, while all of them are accessing the same geometric data. This model has been used to build a real-time representation of a not imaginary scenario. [-]
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International Journal of Digital Earth (2014), v. 7, issue 10Rights
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info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
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