Procedural Design of Exterior Lighting for Buildings with Complex Constraints

Schwarz, Michael; Wonka, Peter

doi:10.1145/2629573

Cited by 42 publications

(25 citation statements)

References 45 publications

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“…Drawing from this body of work, Müller et al [2006] introduced CGA shape, a language for shape grammars 1 for the procedural modeling of architectural buildings. Numerous extensions and variants exist, addressing, for example, visual editing [Lipp et al 2008], additional classes of shapes [Krecklau et al 2010], interconnected structures [Krecklau and Kobbelt 2011], GPU-based execution [Steinberger et al 2014], and specific application domains [Whiting et al 2009;Schwarz and Wonka 2014] (cf. Secs.…”

Section: Introductionmentioning

confidence: 99%

Advanced procedural modeling of architecture

Schwarz

Müller

2015

ACM Trans. Graph.

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a) Multi-shape coordination (b) Boolean operations (c) Advanced context sensitivity (d) Best of several alternativesFigure 1: Our novel grammar language CGA++ enables many advanced procedural modeling scenarios not possible with previous solutions (top; bottom: ours), as exemplified with a grammar for residential suburban buildings comprising a main house, a wing, and a garage, and allowing different configurations of these. (a) With CGA++, modeling decisions can be coordinated across multiple shapes, e.g., to guarantee that overall exactly one door is created. (b) CGA++ enables operations involving multiple shapes, such as Boolean operations. Hence, masses can be merged to avoid overlapping geometries, allowing, e.g., one roof covering the whole building. (c) Generic contextual information can be obtained and acted on in CGA++, whereas previous solutions at best support a narrow set of context sensitivity. While they only allow canceling windows partially occluded, CGA++ additionally enables consistently adjusting all top floor windows. (d) Traditionally, only one alternative can be pursued during one specific derivation. CGA++, however, makes it possible to investigate multiple ones and choose the best of them. On a corner lot, the building grammar may fail if it executes only one option stochastically, and the selected one causes the garage to end up on an irregular footprint. CGA++ allows all options to be explored, robustly evading such failure cases. AbstractWe present the novel grammar language CGA++ for the procedural modeling of architecture. While existing grammar-based approaches can produce stunning results, they are limited in what modeling scenarios can be realized. In particular, many contextsensitive tasks are precluded, not least because within the rules specifying how one shape is refined, the necessary knowledge about other shapes is not available. Transcending such limitations, CGA++ significantly raises the expressiveness and offers a generic and integrated solution for many advanced procedural modeling problems. Pivotally, CGA++ grants first-class citizenship to shapes, enabling, within a grammar, directly accessing shapes and shape trees, operations on multiple shapes, rewriting shape (sub)trees, and spawning new trees (e.g., to explore multiple alternatives). The new linguistic device of events allows coordination across multiple shapes, featuring powerful dynamic grouping and synchronization. Various examples illustrate CGA++, demonstrating solutions to previously infeasible modeling challenges.

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Section: Introductionmentioning

confidence: 99%

Advanced procedural modeling of architecture

Schwarz

Müller

2015

ACM Trans. Graph.

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“…FAN BAO et al show a technique to create procedural facade variations from a single layout [103]. MICHAEL SCHWARZ et al present an approach for designing exterior lighting for buildings with complex constraints [104]. When it comes down to the interior of a building, PAUL MERELL et al present an automatic method for furniture placement following interior design guidelines [105].…”

Section: Urban Modelingmentioning

confidence: 99%

A Survey of Algorithmic Shapes

2015

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In the context of computer-aided design, computer graphics and geometry processing, the idea of generative modeling is to allow the generation of highly complex objects based on a set of formal construction rules. Using these construction rules, a shape is described by a sequence of processing steps, rather than just by the result of all applied operations: shape design becomes rule design. Due to its very general nature, this approach can be applied to any domain and to any shape representation that provides a set of generating functions. The aim of this survey is to give an overview of the concepts and techniques of procedural and generative modeling, as well as their applications with a special focus on archeology and architecture.

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“…Within the scale of a building, layouts can be generated (Merrell et al, 2010), (Bao et al, 2013b) exhibiting different façades (Musialski et al, 2012a), (Bao et al, 2013a). Exterior Lighting can be designed even for buildings with complex constraints (Schwarz and Wonka, 2014). When it comes down to the interior of a building, furniture can be placed following interior design guidelines (Merrell et al, 2011).…”

Section: Archaeology and Architecturementioning

confidence: 99%

Built by Algorithms – State of the Art Report on Procedural Modeling –

Schinko

Krispel

Ullrich

et al. 2015

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:The idea of generative modeling is to allow the generation of highly complex objects based on a set of formal construction rules. Using these construction rules, a shape is described by a sequence of processing steps, rather than just by the result of all applied operations: Shape design becomes rule design. Due to its very general nature, this approach can be applied to any domain and to any shape representation that provides a set of generating functions. The aim of this report is to give an overview of the concepts and techniques of procedural and generative modeling as well as their applications with a special focus on Archaeology and Architecture.

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Procedural Design of Exterior Lighting for Buildings with Complex Constraints

Cited by 42 publications

References 45 publications

Advanced procedural modeling of architecture

Advanced procedural modeling of architecture

A Survey of Algorithmic Shapes

Built by Algorithms – State of the Art Report on Procedural Modeling –

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