Universitat de Girona IMA Girona Graphics Group

Customizable LoD for Procedural Architecture


This paper presents a new semantic and procedural level-of-Detail (LoD) method applicable to any rule-based procedural building definition. This new LoD system allows the customizable and flexible selection of the archi- tectural assets to simplify, doing it in an efficient and artist-transparent way. The method, based on an extension of traditional grammars, uses LoD-oriented commands. A graph-rewriting process introduces these new commands in the artist-provided ruleset, which allows to select different simplification criteria (distance, screen-size projec- tion, semantic selection, or any arbitrary method) through a scripting interface, according to user needs. This way we define a flexible, customizable and efficient procedural LoD system, which generates buildings directly with the correct LoD for a given set of viewing and semantic conditions.


@article {CGF:CGF12141,
    author = {Besuievsky, Gonzalo and Patow, Gustavo},
    title = {Customizable LoD for Procedural Architecture},
    journal = {Computer Graphics Forum},
    issn = {1467-8659},
    url = {http://dx.doi.org/10.1111/cgf.12141},
    doi = {10.1111/cgf.12141},
    pages = {n/a--n/a},
    keywords = {procedural modeling, polygon mesh reduction,
        level-of-detail, Computing methodologies,
        Computer graphics, Shape modeling},
    year = {2013},

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