Procedural modeling historical buildings for serious games

Besuievsky, Gonzalo; Patow, Gustavo

doi:10.4995/var.2013.4268

Cited by 6 publications

(4 citation statements)

References 9 publications

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“…A versatile approach that focuses on the production of virtual buildings through the manipulation of volumetric shapes was proposed by Müller et al [67] and is known as computer graphics architecture (CGA) shape grammar. It was used in other works focusing on the digital recovery of cultural heritage as, for example, the Puuc buildings of Xkipché (Mexico) [68], Ancient Rome (320 AD) [10]-in which procedural models representing missing or severely-damaged buildings were incorporated with manual replicas of the conserved ones-, and Carcassone's old town (France) [69]. Furthermore, using CGA, but combined with statistics and fuzzy logic, Tepavćević and Stojaković [70] addressed Neo-Gothic chapels' appearance simulation, inspired by a set of sacral Roman Catholic buildings located in Vojvodina (Serbia).…”

Section: Approaches Relying On or Including Procedural Modelingmentioning

confidence: 99%

Procedural Modeling of Buildings Composed of Arbitrarily-Shaped Floor-Plans: Background, Progress, Contributions and Challenges of a Methodology Oriented to Cultural Heritage

et al. 2019

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Virtual models’ production is of high pertinence in research and business fields such as architecture, archeology, or video games, whose requirements might range between expeditious virtual building generation for extensively populating computer-based synthesized environments and hypothesis testing through digital reconstructions. There are some known approaches to achieve the production/reconstruction of virtual models, namely digital settlements and buildings. Manual modeling requires highly-skilled manpower and a considerable amount of time to achieve the desired digital contents, in a process composed by many stages that are typically repeated over time. Both image-based and range scanning approaches are more suitable for digital preservation of well-conserved structures. However, they usually require trained human resources to prepare field operations and manipulate expensive equipment (e.g., 3D scanners) and advanced software tools (e.g., photogrammetric applications). To tackle the issues presented by previous approaches, a class of cost-effective, efficient, and scarce-data-tolerant techniques/methods, known as procedural modeling, has been developed aiming at the semi- or fully-automatic production of virtual environments composed of hollow buildings exclusively represented by outer façades or traversable buildings with interiors, either for expeditious generation or reconstruction. Despite the many achievements of the existing procedural modeling approaches, the production of virtual buildings with both interiors and exteriors composed by non-rectangular shapes (convex or concave n-gons) at the floor-plan level is still seldomly addressed. Therefore, a methodology (and respective system) capable of semi-automatically producing ontology-based traversable buildings composed of arbitrarily-shaped floor-plans has been proposed and continuously developed, and is under analysis in this paper, along with its contributions towards the accomplishment of other virtual reality (VR) and augmented reality (AR) projects/works oriented to digital applications for cultural heritage. Recent roof production-related enhancements resorting to the well-established straight skeleton approach are also addressed, as well as forthcoming challenges. The aim is to consolidate this procedural modeling methodology as a valuable computer graphics work and discuss its future directions.

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Section: Approaches Relying On or Including Procedural Modelingmentioning

confidence: 99%

Procedural Modeling of Buildings Composed of Arbitrarily-Shaped Floor-Plans: Background, Progress, Contributions and Challenges of a Methodology Oriented to Cultural Heritage

et al. 2019

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“…For instance, the distribution and share of a building type in a neighbourhood is of interest to marketing and real estate management. [152], crime mapping [153,154], serious gaming [155,156], and augmented reality [157][158][159][160][161][162][163][164][165][166][167]. It is not our intention to further delineate each of these, as it entails more ambiguity with respect to the taxonomy.…”

Section: Aiding Positioningmentioning

confidence: 99%

Applications of 3D City Models: State of the Art Review

Biljecki

Stoter

Ledoux

et al. 2015

IJGI

632

380

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In the last decades, 3D city models appear to have been predominantly used for visualisation; however, today they are being increasingly employed in a number of domains and for a large range of tasks beyond visualisation. In this paper, we seek to understand and document the state of the art regarding the utilisation of 3D city models across multiple domains based on a comprehensive literature study including hundreds of research papers, technical reports and online resources. A challenge in a study such as ours is that the ways in which 3D city models are used cannot be readily listed due to fuzziness, terminological ambiguity, unclear added-value of 3D geoinformation in some instances, and absence of technical information. To address this challenge, we delineate a hierarchical terminology (spatial operations, use cases, applications), and develop a theoretical reasoning to segment and categorise the diverse uses of 3D city models. Following this framework, we provide a list of identified use cases of 3D city models (with a description of each), and their applications. Our study demonstrates that 3D city models are employed in at least 29 use cases that are a part of more than 100 applications. The classified inventory could be useful for scientists as well as stakeholders in the geospatial industry, such as companies and national mapping agencies, as it may serve as a reference document to better position their operations, design product portfolios, and to better understand the market.

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“…This is due to the primary goals of procedural modelling: to quickly generate 3D data, and to increase the LOD of existing models to improve their visual impression, achieved by artificially adding features. Nevertheless, this inconsistency does not interfere with many applications, such as flight simulation, and gaming, where the focus is on visualisation, rather than on spatial analyses (Besuievsky and Patow, 2013b). As a result, many synthetic datasets have been generated completely from scratch, representing fictitious settings, for instance, for movies.…”

Section: Procedural Modellingmentioning

confidence: 99%

Generation of Multi-Lod 3d City Models in Citygml With the Procedural Modelling Engine Random3dcity

Biljecki

Ledoux

Stoter

2016

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:The production and dissemination of semantic 3D city models is rapidly increasing benefiting a growing number of use cases. However, their availability in multiple LODs and in the CityGML format is still problematic in practice. This hinders applications and experiments where multi-LOD datasets are required as input, for instance, to determine the performance of different LODs in a spatial analysis. An alternative approach to obtain 3D city models is to generate them with procedural modelling, which is-as we discuss in this paperwell suited as a method to source multi-LOD datasets useful for a number of applications. However, procedural modelling has not yet been employed for this purpose. Therefore, we have developed RANDOM3DCITY, an experimental procedural modelling engine for generating synthetic datasets of buildings and other urban features. The engine is designed to produce models in CityGML and does so in multiple LODs. Besides the generation of multiple geometric LODs, we implement the realisation of multiple levels of spatiosemantic coherence, geometric reference variants, and indoor representations. As a result of their permutations, each building can be generated in 392 different CityGML representations, an unprecedented number of modelling variants of the same feature. The datasets produced by RANDOM3DCITY are suited for several applications, as we show in this paper with documented uses. The developed engine is available under an open-source licence at Github at http://github.com/tudelft3d/Random3Dcity.

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Procedural modeling historical buildings for serious games

Abstract: Resumen

Cited by 6 publications

References 9 publications

Procedural Modeling of Buildings Composed of Arbitrarily-Shaped Floor-Plans: Background, Progress, Contributions and Challenges of a Methodology Oriented to Cultural Heritage

Procedural Modeling of Buildings Composed of Arbitrarily-Shaped Floor-Plans: Background, Progress, Contributions and Challenges of a Methodology Oriented to Cultural Heritage

Applications of 3D City Models: State of the Art Review

Generation of Multi-Lod 3d City Models in Citygml With the Procedural Modelling Engine Random3dcity

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