A Virtual World Grammar for automatic generation of virtual worlds

Trescak, Tomas; Esteva, Marc; Rodriguez, Inmaculada

doi:10.1007/s00371-010-0473-7

Cited by 30 publications

(24 citation statements)

References 8 publications

(8 reference statements)

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“…They have been successfully applied in different solutions that require the use of virtual models/environments (Lee et al, 2008a;Attene et al, 2009;Hunter and Gerber, 2010) to achieve a wide variety of purposes that range from the planning of neurosurgery operation to the cataloguing of museum artefacts. A few procedural modelling solutions also used them to guide the process of generating virtual models (Liu et al, 2008;Trescak et al, 2010;Tutenel et al, 2011). The results are interesting.…”

Section: Regulation Through Ontologiesmentioning

confidence: 89%

“…A subset of these works also relies on ontologies and semantics (e.g. Trescak et al (2010), Liu et al (2006), Liu et al (2008)), which are knowledge organization based approaches that contributed, along with procedural modelling, to the methodology proposed in this document. Thus, the following subsections will expose a literature review regarding both matters.…”

Section: Ontologies and Procedural Modellingmentioning

confidence: 99%

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Ontology-based Procedural Modelling of Traversable Buildings Composed by Arbitrary Shapes

Ado

Magalhes

Peres

2016

SpringerBriefs in Computer Science

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University of Trás-os-Montes e Alto Douro Albert EinsteinTo my family and friends To my soulmate Dércia vii UNIVERSITY OF TRÁS-OS-MONTES E ALTO DOURO PhD in Computer ScienceThe members of the jury recommend to the University of Trás-os-Montes e Alto Douro the acceptance of the thesis entitled "Ontology-based Procedural Modelling of Traversable Buildings Composed by Arbitrary Shapes"accomplished by Telmo Miguel Oliveira Adão in partial fulfillment of the requirements for the degree of Doctor Philosophy. December 2015Jury President:Professor Abstract -3D virtual models of buildings are commonly used in areas such as architecture and video games to preview a house project and to populate a virtual scenario, respectively. Traditionally, the production of these models requires highly skilled manpower and a considerable amount of time. To address this issue, many researchers have developed semi-automatic techniques to produce virtual models expeditiously. These procedural techniques provide different ways of generating buildings, including interiors and outer facades, to serve several purposes (e.g., content generation for video games or archaeological reconstruction). However, the existing techniques focusing on building interiors usually only support the generation of floor plans constrained by regular shapes or contour polygons obtained from rectangles sets. At the same time, the possibility of modelling interior rooms through the specification of its constraint walls remains poorly explored. Moreover, most of the existing procedural generation solutions are guided by complex grammars concerned with geometrical aspects or semantic structures that fit specific project requirements, apparently disregarding the established standards for virtual urban environments, specifically, CityGML.To overcome the noted issues, a novel procedural modelling methodology is proposed in this thesis, one that produces virtual models of buildings, including exteriors outlined by arbitrary shapes and interiors formed by convex polygons. Methodology's regulation is provided by a building ontology -a CityGML-based knowledge structure, planned to be extensible to specific architecture styles -through several guiding data structures such as structured XML and ontology-based grammar. Regarding the supporting process, a treemap approach is used to subdivide the building layout into floor plan areas. During the development of this work, several improvements were progressively made to the treemap in order to enable the subdivision of different constraint polygon types which range from rectangles to arbitrary shapes. Moreover, in the most mature work stage, a method concerning inner room walls adaptation is addressed. Next, a set of operations is performed, from the marking transitions step to the extrusion process that provides the 3D aspect. In addition, an experimental stochastic approach is proposed to automate the production of random buildings using this procedural modelling methodology.A set of tests was made to demonstrate the capabilitie...

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Section: Regulation Through Ontologiesmentioning

confidence: 89%

Section: Ontologies and Procedural Modellingmentioning

confidence: 99%

Ontology-based Procedural Modelling of Traversable Buildings Composed by Arbitrary Shapes

Ado

Magalhes

Peres

2016

SpringerBriefs in Computer Science

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“…[91] Virtual World Builder Toolkit (VWBT) is an extension of the EI/EIDE framework to design and implement 3-D virtual (electronic institutions) institutions; this paper implements the toolkit with an immersive version of a fish market, along the ideas proposed in [21]. [20] Simulation of an archaeological site as a normative multi agent system using 3D virtual institutions.…”

Section: Ei/eidementioning

confidence: 99%

Social Coordination Frameworks for Social Technical Systems

Aldewereld¹,

Boissier

Dignum³

et al. 2016

Law, Governance and Technology Series

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Abstract. The subject of this chapter is the application of models for social coordination (M4SC). Deriving from and extending multiagent systems (MAS), applications of M4SC inherit the attributes of MAS, such as multiple actors, distribution, and heterogeneity, but bring characteristics of their own that are essential to social coordination over and above conventional MAS. In this chapter, we first discuss these differentiating properties of M4SC, identifying essential and nonessential (but commonly occurring) characteristics. This we follow with a wideranging (but not exhaustive or exclusive) discussion of classes of M4SC applications, which are supported by structured, illustrative summaries of noteworthy examples of applications, created using the frameworks described elsewhere in this volume. Finally, we give an overview of a broader range applications developed with the frameworks, with links to further reading.

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“…In [20,21] a system that can automatically generate a 3D virtual world from a MAS specification is proposed. They present the concept of Virtual World Grammar (VWG) that supports the generation of 3D virtual worlds, through the extension of the shape grammar concept, adding semantic information of the environment and the MAS.…”

Section: Related Workmentioning

confidence: 99%

“…Our proposal has some points in common with [20,21]. We propose a grammatical framework to construct VWs and we also extend its features to add semantic information.…”

Section: Related Workmentioning

confidence: 99%

Construction of Intelligent Virtual Worlds Using a Grammatical Framework

López-García

Gallego-Sánchez

Molina-Carmona

et al. 2014

Int. J. Intell. Syst.

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The potential of integrating multi-agent systems and virtual environments has not been exploited to its whole extent. This paper proposes a model based on grammars, called Minerva, to construct complex virtual environments that integrate the features of agents. A virtual world is described as a set of dynamic and static elements. The static part is represented by a sequence of primitives and transformations and the dynamic elements by a series of agents. Agent activation and communication is achieved using events, created by the so called event generators.The grammar defines a descriptive language with a simple syntax and 1 a semantics, defined by functions. The semantics functions allow the scene to be displayed in a graphics device, and the description of the activities of the agents, including Artificial Intelligence algorithms and reactions to physical phenomena.To illustrate the use of Minerva, a practical example is presented: a simple robot simulator which considers the basic features of a typical robot. The result is a functional simple simulator.Minerva is a reusable, integral and generic system, which can be easily scaled, adapted, and improved. The description of the virtual scene is independent from its representation and the elements which it interacts with.

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A Virtual World Grammar for automatic generation of virtual worlds

Cited by 30 publications

References 8 publications

Ontology-based Procedural Modelling of Traversable Buildings Composed by Arbitrary Shapes

Ontology-based Procedural Modelling of Traversable Buildings Composed by Arbitrary Shapes

Social Coordination Frameworks for Social Technical Systems

Construction of Intelligent Virtual Worlds Using a Grammatical Framework

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