CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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Hits 1 to 20 of 716

_id 39ea
authors Maver, T., Harrison, C. and Grant, M.
year 2001
title Virtual Environments for Special Needs. Changing the VR Paradigm
source Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 151-159
summary The normal application of Virtual Reality is to the simulation of environments, which are in some way special - remote, hazardous or purely imaginary. This paper describes research and development work which changes the paradigm by simulating perfectly ordinary buildings for special people. Some 15% of the population have some form of physical impairment - a proportion which is likely to rise in line with an ageing population. New legislation, such as the UK Disability Discrimination Act places additional responsibility on building owners to ensure adequate access for people with an impairment and this in turn will place additional responsibility on the architect. Current methods of auditing access for new building are primitive and require the auditor to interpret plans/sections of the proposed building against a checklist of requirements specific to the special need. This paper reports on progress in the use of an immersive VR facility to simulate access to buildings for two broad classes of user: i) those with a mobility impairment; ii) those with visual impairment. In the former case, a wheelchair motion platform has been designed which allows the wheelchair user to navigate the virtual building; a brake and motor connected to the rollers on which the wheelchair sits facilitate the effects of slope and surface resistance. In the latter case, the main categories and degrees of visual impairment can be simulated allowing architects to assess the contribution of form, colour and signage to safe access.
keywords Virtual Reality, Mobility Impairment, Visual Impairment, Access, Simulation
series CAAD Futures
email
last changed 2006/11/07 07:22

_id bbfa
authors Donath, D., Beetz, J., Grether, K., Petzold, F. and Seichter, H.
year 2001
title Augmented Reality Techniques for Design and Revitalisation in Existing Built Environments
source Reinventing the Discourse - How Digital Tools Help Bridge and Transform Research, Education and Practice in Architecture [Proceedings of the Twenty First Annual Conference of the Association for Computer-Aided Design in Architecture / ISBN 1-880250-10-1] Buffalo (New York) 11-14 October 2001, pp. 322-329
doi https://doi.org/10.52842/conf.acadia.2001.322
summary Building activity in Germany is moving increasingly toward combined newbuild and renovation projects. Essential for effective computer-aided planning within an existing context is not only the use of on-site computer-aided measurement tools but also an integrative cooperation between the different disciplines involved via an information and communication system. Interdisciplinary cooperation needs to be tailored to the integrative aspects in renovation and revitalisation work. Economic factors determine the viability of an architectural project, and reliable costing information is vital. Existing IT-approaches to this problem are not yet sufficiently exploited. In ongoing research at our university (collaborative research center ”Materials and Structure in the Revitalisation of Buildings”) methods and techniques of revitalisation are being investigated. A special branch of the collaborative research center is investigating possibilities of computer-aided building measurement and communication platforms for professional disciplines (www.uni-weimar.de/sfb). The aim is to develop a general approach to the revitalisation of buildings. This paper discusses possible application areas of AR/VR techniques in the revitalisation of buildings from the point of view of the user and are based on the real project “Cooling factory Gera”. Based on the necessities of revitalisation projects, technical requirements are developed. The project is funded by the Deutsche Forschungsgesellschaft (DFG).
keywords Augmented Reality, Architecture, Modernization, Measurement
series ACADIA
email
last changed 2022/06/07 07:55

_id ga0118
id ga0118
authors Annunziato, Mauro and Pierucci, Piero
year 2001
title Learning and Contamination in Virtual Worlds
source International Conference on Generative Art
summary The most recent advances of artificial life scientific research are opening up a new frontier: the creation of simulated life environments populated by autonomous agents. In these environments artificial beings can interact, reproduce and evolve [4, 6, 15], and can be seen as laboratories whereto explore the emergence of social behaviors like competition, cooperation, relationships and communication [5, 7] . It is still not possible to approach a reasonable simulation of the incredible complexity of human or animal societies, but these environments can be used as a scientific orartistic tool to explore some basic aspects of the evolution [1, 2, 3, 9, 10, 11, 12, 13, 14]. The combination of these concepts with robotics technology or with immersive-interactive 3D environments (virtual reality) are changing quickly well known paradigms like digital life, manmachineinterface, virtual world. The virtual world metaphor becomes interesting when the artificial beings can develop some form of learning, increasing their performances, adaptation, and developing the ability to exchange information with human visitors. In this sense the evolution enhances the creative power and meaningful of these environments, and human visitors experience an emotion of a shift from a simplified simulation of the reality to a real immersion into an imaginary life. We may think that these realization are the first sparks of a new form of life: simulated for the soft-alife thinkers, real for the hard-alife thinkers, or a simple imaginary vision for the artists.
series other
email
more http://www.generativeart.com/
last changed 2003/11/21 15:15

_id 5d55
authors Billger, Monica and d’Élia, Stefano
year 2001
title Colour appearance in virtual reality: a comparison between a full-scale room and a virtual reality simulation
source AIC Colour 2001, The 9th Congress of the International Colour Association, Rochester, NY.
summary The main goal of our project is to make VR applications usable for the planning of light and colour. To enable reliable simulations, we both need to develop better rendering methods and carefully study the appearance of light and colour in real rooms and in virtual environments. Assessments of real rooms are compared to simulations of the same rooms in immersive Virtual Reality (3D-cube). In this paper, we will present the outcome of a pilot study and discuss specific problems associated with the prospect of comparing reality to Virtual Reality. We will account for the experience of the room and go into details on the experience and perception of light. Indeed, the problems of getting enough light in the 3D-cube and of simulating the light situation of a real room affect colour appearance.
keywords Virtual Reality, VR, 3D-cube, Colour Appearance, Light Perception, Visual Assessments, Simulations
series other
email
last changed 2002/09/05 09:58

_id 51a0
authors Conti, G., Ucelli, G. and Maver, T.
year 2001
title JCAD-VR: Java Collaborative Architectural Design Tool in Virtual Reality - A Java3D based scalable framework for real-time, multiplatform VR environments
source Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 454-459
doi https://doi.org/10.52842/conf.ecaade.2001.454
summary This paper proposes a framework that provides the architect with a tool that uses Virtual Reality (VR) as part of the design path. It offers the possibility to deploy a system capable of assisting the design profession during the early stages of the design process. This way VR becomes the means for a new experience where the architect can, free from constraints of the 2D world, create and manipulate the space she/he is designing. The idea upon which JCAD-VR is being built is that all the users present in the virtual world have to be able to share the same virtual environment in a “transparent fashion” where the user interface, instead of the traditional menu/windows based layout, it is part of the virtual world itself. The aim is to provide the designer with a tool for creating 3D-shapes in a shared VR environment, thus allowing the design to be shared as it evolves.
keywords Collaborative Design, Virtual Reality, Java 3D, Distributed Environment
series eCAADe
email
last changed 2022/06/07 07:56

_id 1229
authors Donath, D., Beetz, N., Grether, K., Kruijff, E., Petzold, F. and Seichter, H.
year 2001
title Cooling Factory, a concrete project to test new architectural applications for augmented reality
source Venetia Giagourta, Michael G. Strintzis (ed.): International Conference on Augmented, Virtual Environments and Three-Dimensional Imaging, Verlag Myconos, pp. 14-17
summary This paper will discuss possible fields of applications of AR/VR for revitalization of buildings from a user's perspective. Considerations are based on the real-world project "Cooling factory Gera". The project is founded by "Deutsche Forschungsgesellschaft (DFG)".
series other
email
last changed 2003/02/26 18:58

_id 40a6
authors Ennis, Gareth and Lindsay, Malcolm
year 2001
title VRGLASGOW.CO.UK implementation of internet multi-user functionality to Glasgow's virtual city
source Stellingwerff, Martijn and Verbeke, Johan (Eds.), ACCOLADE - Architecture, Collaboration, Design. Delft University Press (DUP Science) / ISBN 90-407-2216-1 / The Netherlands, pp. 135-142 [Book ordering info: m.c.stellingwerff@bk.tudelft.nl]
summary The development of the Virtual Reality Modelling Language (VRML) for the Internet has resulted in the emergence of a multiplicity of 3D web sites. The metaphor used by these sites varies enormously from virtual galleries to virtual cities and style varies from abstract to reality. Additionally these worlds are populated by virtual objects, some having reactive or interactive properties, including movement, audio, video, databases, artificial intelligence etc. Perhaps the most stimulating embodiment of these new environments are those that offer the participant the opportunity to meet and communicate with other visitors exploring the same virtual space/world. The Glasgow Directory is an established 3D web space, with around 10,000 visitors per year. The model represents approximayely 10,000 properties in the city and is populated by contextual information on its culture and socio-economic topography. This paper will describe the background to this VR space, and suggest a set of design criteria for successfully deploying multi-user software within this and similar environments. These criteria will take into account lessons learned by 'observing' and analysing how participants interact with the existing system under different conditions and also what benefits they perceive on entering the environment via the multi-user interface. These recommendations will hopefully be applicable to a wide spectrum of internet virtual environment builders and users.
series other
email
last changed 2001/09/14 21:30

_id 3dcd
authors Ennis, Gary and Maver, Tom
year 2001
title Visit VR Glasgow - Welcoming multiple visitors to the Virtual City
source Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 423-429
doi https://doi.org/10.52842/conf.ecaade.2001.423
summary The development of the Virtual Reality Modelling Language (VRML) for the Internet has resulted in the emergence of a multiplicity of 3D web sites. The metaphor used by these sites varies enormously from virtual galleries to virtual cities and style varies from abstract to reality. Additionally these worlds are populated by virtual objects, some having reactive or interactive properties, including movement, audio, video, databases, artificial intelligence etc. Perhaps the most stimulating embodiment of these new environments are those that offer the participant the opportunity to meet and communicate with other visitors exploring the same virtual space/world. The Glasgow Directory is an established 3D web space, with around 10,000 visitors per year. The model represents approximately 10,000 properties in the city and is populated by contextual information on its culture and socio-economic topography. This paper describes the background to this VR space, and suggests a set of design criteria for successfully deploying multi-user software within this and similar environments. These criteria take into account lessons learned by ‘observing’ and analysing how participants interact with the existing system under different conditions and also what benefits they perceive on entering the environment via the multi-user interface. These recommendations will hopefully be applicable to a wide spectrum of internet virtual environment builders and users.
keywords Virtual, City, 3-D, Databases, Interaction
series eCAADe
email
last changed 2022/06/07 07:55

_id 8652
authors Han, Seung-Hoon and Turner, James A.
year 2001
title An Architectural Approach to Virtual Reality Support of Multi-user Environments
source Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 439-452
summary The Internet and its multimedia component, the World Wide Web (WWW), are the essential technological foundations, and the tools to construct cyberspace on these foundations are beginning to be created. Two of those tools are the network programming language, Java, and the 3D graphics standard for the Internet, the Virtual Reality Modelling Language (VRML) which has the ability to support programmable behavior. This paper documents at experiment with the use of networks with Java-VRML connectivity, applying it to a collaborative system which will make it possible for multiple users to navigate and dynamically update an architectural VR environment.
keywords Collaborative Design, Distributed Virtual Environments, Multi-User, Internet
series CAAD Futures
email
last changed 2006/11/07 07:22

_id 9de9
authors Laakso, Mikko
year 2001
title Practical Navigation in Virtual Architectural Environments
source Helsinki University of Technology, Espoo, Finland
summary The interest towards virtual reality (VR) and virtual environments (VE) is growing all the time. The applications being developed for VE run a wide spectrum, from games to business planning. This thesis concentrates on navigation in virtual architectural environments, movement in worlds that are very similar to our own. Navigation in a virtual world should be practical, intuitive and simple. Unfortunately, it is very often far from that - for some reason the usability issues in VEs have been usually left with little attention. Currently it is easy for a user to get lost and disoriented when traveling in a VE. This situation must change, navigating through virtual environments can no longer be considered a task reserved for the experts only. 3D-worlds and architectural applications for the common user require new, intuitive interface techniques. This thesis addresses issues related to both physical and cognitive aspects of navigation as well as theoretical models that bind them together. In the technology survey of this thesis, the virtual environment technology is presented. Different visual display systems, new input devices and some 3D user interface design aspects are described. The literature survey section discusses the main issues concerning navigation theory. The two parts of navigation, travel and wayfinding, are described in detail. The major challenges are discussed and some solutions and various research results are presented. A major part of the thesis consists of the description of HCNav, a new navigation system developed by the author. The system was constructed for use in the virtual room at Helsinki University of Technology. The purpose of HCNav is to provide a very intuitive and practical navigation interface. Three new experimental input devices, namely custom wand, data glove and speech recognition system, were tested. Another important part of the work is to evaluate the effectiveness of the HCNav system. A usability test was conducted to determine if the use of HCNav was actually improving navigation performance. Twelve subjects participated in a test where HCNav was compared with a traditional navigation software used previously in the virtual room. The experiment setup has been described and the results analyzed. The results are promising and show that the navigation methods adopted in HCNav are clearly better.
keywords Virtual Environments, Navigation, Usability
series thesis:MSc
last changed 2003/02/12 22:37

_id 4f37
authors Mahalingam, Ganapathy
year 2001
title POCHE' - Polyhedral Objects Controlled by Heteromorphic Effectors
source Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 603-614
summary This paper takes the architectural concept of poche' and uses it to explore new possibilities in transforming polyhedra with effectors. In many computer-aided design systems, architectural entities are represented as well-formed polyhedra. Parameters and functions can be used to modify the forms of these polyhedra. For example, a cuboid can be transformed by changing its length, breadth and height, which are its parameters. In a more complex example, a polyhedron can be transformed by a set of user-defined functions, which control its vertices, edges and faces. These parameters and functions can further be embodied as effectors that control and transform the polyhedra in extremely complex ways. An effector is an entity, which has a transforming effect on another entity or system. An effector is more complex than a parameter or function. An effector can be a modelled as a virtual computer. Effectors can take on many roles that range from geometric transformation agents and constraints to performance criteria. The concept of the poche', made famous by Venturi is familiar to architects. The poche' is a device to mediate the differences between an interior and an exterior condition or between two interior conditions. In a poche', the role of the effector changes from being an agent that acts on a polyhedron from the outside, to an agent that acts as a mediator between an interior polyhedron and an exterior polyhedron, which represent interior and exterior environments respectively. This bi-directionality in the role of the effector allows a wide range of architectural responses to be modelled. The effector then becomes an interface in the true sense of the word. This concept will work best in a threedimensional or four-dimensional representational world but can be used effectively in a two-dimensional representational world as well. The application of this concept in design systems is explored with examples drawn from the work of the author, and practitioners who are using the concept of effectors in their work. A brief discussion of how this technique can evolve in the future is presented.
keywords Effectors, Abstract Machines, Design As Interface
series CAAD Futures
email
last changed 2006/11/07 07:22

_id 2dba
id 2dba
authors Tasli, S
year 2001
title WHAT DOES COMPUTER AIDED DESIGN OFFER FOR PRODUCING LIVABLE BUILDINGS IN THE 21ST CENTURY?
source Proceedings of the Livable Environments and Architecture International Congress (LIVENARCH 2001). July 4-7, 2001, Trabzon, Turkey, pp. 278-282.
summary Designing livable buildings has always been a major concern for architects but they are often criticized on account of failing in this aim. However, this is not only due to the ignorance of the designers, but also of the complexity of the factors that are essential to design but difficult to incorporate the design process. Buildings are shaped and occupied under several dynamically changing conditions and paper-based media and conventional Computer Aided Design (CAD) tools are inefficient in representing them. This paper aims to discuss the changing role of digital media for architectural design in response to the increasing complexity of design processes. Some proposals, supported by recent technological innovations, are suggested for the future and they are compared with the conventional uses of CAD. It is claimed that in the 21st century, the main advantage of using computers will be to dynamically simulate buildings in time in highly visualized virtual environments to evaluate the future performance of proposed designs. The design model will not only look as if it were real, but it will also “behave” as if it were real so as to provide dynamic and intelligent response. The two key technologies for the development of such modeling, virtual reality and object-oriented programming are addressed and four promising application areas for near future (evaluation of user-building interaction, visualization of environmental factors, construction scheduling, and combined CAD-GIS) are discussed. Some important considerations for the development of dynamically simulated virtual models are analyzed and suggestions are made for further research.

keywords Architectural Design, Dynamic Simulation, and Virtual Environments
series other
type normal paper
email
last changed 2005/12/01 16:02

_id 2a67
authors Venturelli, S., Anastácio, F.C., Sólon da Silva, L., Lira Rojas, J. and Rezende, A.L.
year 2001
title UMA PROPOSTA DE SISTEMA DE MULTIUSUÁRIO ARTÍSTICO (A Proposal of a Multi-user Artistic System)
source SIGraDi biobio2001 - [Proceedings of the 5th Iberoamerican Congress of Digital Graphics / ISBN 956-7813-12-4] Concepcion (Chile) 21-23 november 2001, pp. 234-236
summary Kennetic World is an artistic research aiming to create a multi-user interface for cyberspace. It creates a telematic presence allowing the internet users to communicate with others, using their whole body in virtual environments - virtual worlds - changing permanently and also avatars, among other ways to establish dialogues. It may be characterized an open work of art.
series SIGRADI
email
last changed 2016/03/10 10:02

_id cf2011_p127
id cf2011_p127
authors Benros, Deborah; Granadeiro Vasco, Duarte Jose, Knight Terry
year 2011
title Integrated Design and Building System for the Provision of Customized Housing: the Case of Post-Earthquake Haiti
source Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 247-264.
summary The paper proposes integrated design and building systems for the provision of sustainable customized housing. It advances previous work by applying a methodology to generate these systems from vernacular precedents. The methodology is based on the use of shape grammars to derive and encode a contemporary system from the precedents. The combined set of rules can be applied to generate housing solutions tailored to specific user and site contexts. The provision of housing to shelter the population affected by the 2010 Haiti earthquake illustrates the application of the methodology. A computer implementation is currently under development in C# using the BIM platform provided by Revit. The world experiences a sharp increase in population and a strong urbanization process. These phenomena call for the development of effective means to solve the resulting housing deficit. The response of the informal sector to the problem, which relies mainly on handcrafted processes, has resulted in an increase of urban slums in many of the big cities, which lack sanitary and spatial conditions. The formal sector has produced monotonous environments based on the idea of mass production that one size fits all, which fails to meet individual and cultural needs. We propose an alternative approach in which mass customization is used to produce planed environments that possess qualities found in historical settlements. Mass customization, a new paradigm emerging due to the technological developments of the last decades, combines the economy of scale of mass production and the aesthetics and functional qualities of customization. Mass customization of housing is defined as the provision of houses that respond to the context in which they are built. The conceptual model for the mass customization of housing used departs from the idea of a housing type, which is the combined result of three systems (Habraken, 1988) -- spatial, building system, and stylistic -- and it includes a design system, a production system, and a computer system (Duarte, 2001). In previous work, this conceptual model was tested by developing a computer system for existing design and building systems (Benr__s and Duarte, 2009). The current work advances it by developing new and original design, building, and computer systems for a particular context. The urgent need to build fast in the aftermath of catastrophes quite often overrides any cultural concerns. As a result, the shelters provided in such circumstances are indistinct and impersonal. However, taking individual and cultural aspects into account might lead to a better identification of the population with their new environment, thereby minimizing the rupture caused in their lives. As the methodology to develop new housing systems is based on the idea of architectural precedents, choosing existing vernacular housing as a precedent permits the incorporation of cultural aspects and facilitates an identification of people with the new housing. In the Haiti case study, we chose as a precedent a housetype called “gingerbread houses”, which includes a wide range of houses from wealthy to very humble ones. Although the proposed design system was inspired by these houses, it was decided to adopt a contemporary take. The methodology to devise the new type was based on two ideas: precedents and transformations in design. In architecture, the use of precedents provides designers with typical solutions for particular problems and it constitutes a departing point for a new design. In our case, the precedent is an existing housetype. It has been shown (Duarte, 2001) that a particular housetype can be encoded by a shape grammar (Stiny, 1980) forming a design system. Studies in shape grammars have shown that the evolution of one style into another can be described as the transformation of one shape grammar into another (Knight, 1994). The used methodology departs takes off from these ideas and it comprises the following steps (Duarte, 2008): (1) Selection of precedents, (2) Derivation of an archetype; (3) Listing of rules; (4) Derivation of designs; (5) Cataloguing of solutions; (6) Derivation of tailored solution.
keywords Mass customization, Housing, Building system, Sustainable construction, Life cycle energy consumption, Shape grammar
series CAAD Futures
email
last changed 2012/02/11 19:21

_id 7897
authors Achten, Henri and De Vries, Bauke
year 2001
title Multiple Sketch Users in DDDoolz
source Stellingwerff, Martijn and Verbeke, Johan (Eds.), ACCOLADE - Architecture, Collaboration, Design. Delft University Press (DUP Science) / ISBN 90-407-2216-1 / The Netherlands, pp. 153-162 [Book ordering info: m.c.stellingwerff@bk.tudelft.nl]
summary This paper presents DDDoolz, a desktop-VR three-dimensional voxel sketchtool. DDDoolz is developed in the Design Systems Group to explore the use of Virtual Reality technology in the early design stage. The aim is to offer a sketch-like environment in VR with an unobtrusive interface. The paper presents DDDoolz, how it is used in education and with partners in architectural practice, and some future developments. As an extension to current functionality, the possibility of multiple users at the same time will be developed in the system for the {ACCOLADE} workshop.
series other
email
last changed 2001/09/14 21:30

_id avocaad_2001_18
id avocaad_2001_18
authors Aleksander Asanowicz
year 2001
title The End of Methodology - Towards New Integration
source AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary The present paper is devoted to the deliberation on the genesis and development of designing from the point of view of the potential use of computers in the process. Moreover, it also presents the great hopes which were connected with the use of the systematic designing methods in the 1960’s, as well as the great disappointment resulting from the lack of concrete results. At this time a great deal of attention was paid to the process of design as a branch of a wider process of problem-solving. Many people believed that the intuitive methods of design traditionally used by architects were incapable of dealing with the complexity of the problems to be solved. Therefore, the basic problem was the definition of a vertical structure of the designing process, which would make it possible to optimise each process of architectural design. The studies of design methodology directed at the codification of the norms of actions have not brought about any solutions which could be commonly accepted, as the efforts to present the designing process as a formally logical one and one that is not internally “uncontrary” from the mathematical point of view, were doomed to fail. Moreover, the difficulties connected with the use of the computer in designing were caused by the lack of a graphic interface, which is so very characteristic of an architect’s workshop. In result, the methodology ceased to be the main area of the architect’s interest and efforts were focused on facilitating the method of the designer’s communication with the computer. New tools were created, which enabled both the automatic generation of diversity and the creation of forms on the basis of genetic algorithms, as well as the presentation of the obtained results in the form of rendering, animation and VRML. This was the end of the general methodology of designing and the beginning of a number of methods solving the partial problems of computer-supported design. The present situation can be described with the words of Ian Stewart as a “chaotic run in all directions”. An immediate need for new integration is felt. Cyber-real space could be a solution to the problem. C-R-S is not a virtual reality understood as an unreal world. Whilst VR could be indeed treated as a sort of an illusion, C-R-S is a much more realistic being, defining the area in which the creative activities are taking place. The architect gains the possibility of having a direct contact with the form he or she is creating. Direct design enables one to creatively use the computer technology in the designing process. The intelligent system of recognising speech, integrated with the system of virtual reality, will allow to create an environment for the designer – computer communication which will be most natural to the person. The elimination of this obstacle will facilitate the integration of the new methods into one designing environment. The theoretical assumptions of such an environment are described in the present paper.
series AVOCAAD
email
last changed 2005/09/09 10:48

_id 7c56
authors Alvarado, R.G., Parra Marquez, J.C. and Vildosola, G.V.
year 2001
title Qualitative contribution of a vr-system to architectural design: Why we failed?
source CAADRIA 2001 [Proceedings of the Sixth Conference on Computer Aided Architectural Design Research in Asia / ISBN 1-86487-096-6] Sydney 19-21 April 2001, pp. 423-427
doi https://doi.org/10.52842/conf.caadria.2001.423
summary The paper exposes the development of a Virtual-Reality system for modeling timber structures, and evaluations with students about its contribution to the architectural project.
series CAADRIA
email
last changed 2022/06/07 07:54

_id 174f
authors Bakker, N.H.
year 2001
title Spatial Orientation in Virtual Environments
source Delft University of Technology
summary Recently, a growing interest can be detected in the application of Virtual Environment (VE) technology as an operator interface. VEs are three-dimensional computer-generated images that can be shown on a conventional monitor, on a large screen display, or on a head-mounted display. In order to use these three-dimensional interfaces for finding and retrieving information, the user must be able to spatially orient themselves. Different types of VE technology are available for navigating in these VEs, and different types of navigation can be enabled. A choice has to be made between the different options to enable good spatial orientation of the user. There are two main types of VE interfaces: an immersive interface that provides rich sensory feedback to the user when moving around in the VE, and a non-immersive interface that provides only visual feedback to the user when moving around in the VE. Furthermore, navigation through the VE can either be continuous providing fluent motion, or can be discontinuous which means that the viewpoint is displaced instantaneously over a large distance. To provide insight into the possible effects of these options a series of nine experiments was carried out. In the experiments the quality of spatial orientation behaviour of test subjects is measured while using the different types of interface and the different types of navigation. The results of the experiments indicate that immersive navigation improves the perception of displacement through the VE, which in turn aids the acquisition of spatial knowledge. However, as soon as the spatial layout of the VE is learned the two types of navigation interface do not lead to differences in spatial orientation performance. A discontinuous displacement leads to temporary disorientation, which will hinder the acquisition of spatial knowledge. The type of discontinuous displacements has an effect on the time needed for anticipation. The disorienting effects of a discontinuous displacement can be compensated for by enabling cognitive anticipation to the destination of the displacement. These results suggest that immersive navigation might only be beneficial for application domains in which new spatial layouts have to be learned every time or in domains where the primary users are novices. For instance, in training firemen to teach them the layout of new buildings with VE, or in using architectural walkthroughs in VE to show new building designs to potential buyers. Discontinuous movement should not be allowed when exploring a new environment. Once the environment is learned and if fast displacement is essential then discontinuous displacement should be preferred. In this case, the interface designer must make sure that information is provided about the destination of a discontinuous displacement.
series thesis:PhD
last changed 2003/11/21 15:16

_id 5ac1
authors Bourdakis, Vassilis
year 2001
title On Developing Standards for the Creation of VR City Models
source Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 404-409
doi https://doi.org/10.52842/conf.ecaade.2001.404
summary The paper is an inclusive summary of research work on creating VR city models carried out over the last six years in the UK and Greece aiming to put into discussion the guidelines/ rules developed by the author. The paper is structured in three sections referring to the main stages in terms of either technical expertise and problem solving or conceptual structuring of information: creation of 3D city models, CAAD versus VR in digital city modelling and finally utilizing digital city models. The expected outcome of the work presented is the establishment of a body of knowledge that will facilitate the development of standards and guidelines for the creation of city models. There are obvious advantages in having a compatible set of city 3D models. On the other hand, there are different rules to be followed and issues to be solved, according to the scale of the model, level of detail that is needed—all these rules relate to the projected use of the model.
keywords Digital City Models, 3D Modelling, Virtual Reality, Urban Planning
series eCAADe
email
last changed 2022/06/07 07:54

_id ad6c
authors Brown, A., Gavin, L., Berridge, P. and Knight, M.
year 2001
title An Active World - Architectural Information Interchange via 3D Internet Environments
source Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 365-370
doi https://doi.org/10.52842/conf.ecaade.2001.365
summary The eCAADe organisation has the long term role to promote and facilitate the discussion and interchange of ideas relating to a broad range of issues in the field of CAAD education and research. The new technologies that have come together to give us the environment that we know as the Internet has offered a range of stimuli for new initiatives. A research group has been established to investigate and explore a particular aspect of this new potential with the goal of creating an eCAADe Virtual world as a vehicle for testing the associated ideas. This papers reports on the recent developments on this project.
keywords Internet, 3D-Worlds, Virtual Meeting, ECAADe, Collaboration
series eCAADe
email
last changed 2022/06/07 07:54

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