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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_id caadria2013_176
id caadria2013_176
authors Knapp, Chris
year 2013
title The Hand and the Machine: A Hybrid Approach to Complex Construction in a Work of Sir Peter Cook
doi https://doi.org/10.52842/conf.caadria.2013.633
source Open Systems: Proceedings of the 18th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2013) / Singapore 15-18 May 2013, pp. 633-642
summary This paper describes and provides a critique of the design and implementation of the “scoops” – a set of bespoke multifunctioning architectural free-form concrete elements that are a highlight of the new Soheil Abedian School of Architecture by the office of Sir Peter Cook and Gavin Robotham (CRAB). The development includes the transfer of analogue design processes into digital 3D modelling, which is then analysed and rationalized via an exchange with consultants and procurement contractors. The complexity of the concrete works necessitated the use of digital fabrication to make their implementation affordable and within time constraints, with said complexity creating a variety of challenges for many aspects of the entire delivery team. The 3D model played a critical role in communicating intent and accuracy at all stages. The use of site-based craftsmanship combined with computer aided design and fabrication overlapped to realize the project.  
wos WOS:000351496100062
keywords In-situ concrete, 3D modelling, Rhinoceros, Peter cook, Digital fabrication 
series CAADRIA
email
last changed 2022/06/07 07:51

_id caadria2016_787
id caadria2016_787
authors Knapp, Chris; Jonathan Nelson, Andrew Kudless and Sascha Bohnenberger
year 2016
title Lightweight material prototypes using dense bundled systems to emulate an ambient environment
doi https://doi.org/10.52842/conf.caadria.2016.787
source Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 787-796
summary This paper describes and reflects upon a computational de- sign and digital fabrication research project that was developed and implemented over 2014-2015, with subsequent development continu- ing for applications at present. The aim of the research was to develop methods of modelling, analysis, and fabrication that facilitate integra- tive approaches to architectural design and construction. In this con- text, the development of material prototypes, digital simulations, and parametric frameworks were pursued in parallel in order to inform and reform successive iterations throughout the process, leading to a re- fined workflow for engineering, production, and speculation upon fu- ture directions of the work.
keywords Digital fabrication; biomimicry; ambient environments; grasshopper; computational design
series CAADRIA
email
last changed 2022/06/07 07:51

_id caadria2014_150
id caadria2014_150
authors Knapp, Chris; Jonathan Neslon and Michael Parsons
year 2014
title Constructing Atmospheres
doi https://doi.org/10.52842/conf.caadria.2014.149
source Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 149–158
summary This paper documents and critically reflects upon the design, development, fabrication, and implementation of three pavilion projects developed during 2013-14. The core investigation of this work is the production of architectural spaces characterized by a quality of enveloping, diffuse, visual and spatial atmospheres. The principal activity of the research is aimed at refining methods for software-based exploration of formal complexities and the subsequent need to control variability and efficiency in fabrication output, using Grasshopper for Rhino to develop customized definitions particular to each specific project scenario. Linking the projects together are issues of scale, resolution of effect, and intent to move from disparate assemblies of structure and skin toward composite, manifold construction techniques that address multiple concerns (gravity, bracing, affect, etc) with a minimum of assembly. A material palette common to the current vernacular of CNC-based projects such as plywood, plastics, and other sheet materials is utilised. This work is invested in extending the possibilities of the architect and architecture as a discipline, extrapolating the workflow from these successive projects to the speculative impact of the work upon emerging possibilities of architectural construction and craft.
keywords 3d modelling; Digital fabrication; Rhinoceros; Grasshopper; Tessellation
series CAADRIA
email
last changed 2022/06/07 07:51

_id acadia14projects_209
id acadia14projects_209
authors Knapp, Chris; Nelson, Jonathan
year 2014
title Cellular Tessallation
doi https://doi.org/10.52842/conf.acadia.2014.209.2
source ACADIA 14: Design Agency [Projects of the 34th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 9789126724478]Los Angeles 23-25 October, 2014), pp. 209-212
summary Cellular Tessellation is a small yet generous pavilion put on display as part of the Sydney Vivid Light festival in 2014. The project is both spatial and aesthetic, bringing the quality of architectural inhabitation and visceral experience to an urban festival which is typically limited to visual engagement.
keywords light, computational form, geometry, digital fabrication, aluminum
series ACADIA
type Practice Projects
email
last changed 2022/06/07 07:51

_id c4ae
id c4ae
authors Knapp, Robert W. and McCall, Raymond
year 1996
title PHIDIAS II - In Support of Collaborative Design
doi https://doi.org/10.52842/conf.acadia.1996.147
source Design Computation: Collaboration, Reasoning, Pedagogy [ACADIA Conference Proceedings / ISBN 1-880250-05-5] Tucson (Arizona / USA) October 31 - November 2, 1996, pp. 147-154
summary The World Wide Web in combination with Java and Virtual Reality Modeling Language (VRML) create great opportunities for collaboration by distributed design teams. To take advantage of these opportunities, we have begun to create a version of the PHIDIAS hyperCAD system (McCall, Bennett and Johnson 1994) that will support communication and collaboration among designers over the Word Wide Web. PHIDIAS is an intelligent, hypermedia-based system for computer-aided design. Our strategy is to divide PHIDIAS into two parts: 1) a client-side user interface and 2) a server-side hyperCAD database engine. The client-side interface is being implemented using Java and VRML. Implementing the PHIDIAS front-end with Java enables program code distribution via the World Wide Web. VRML provides PHIDIAS with client-side computation and display of 3D graphics.
series ACADIA
last changed 2022/06/07 07:51

_id ecaadesigradi2019_195
id ecaadesigradi2019_195
authors Knecht, Katja, Stefanescu, Dimitrie A. and Koenig, Reinhard
year 2019
title Citizen Engagement through Design Space Exploration - Integrating citizen knowledge and expert design in computational urban planning
doi https://doi.org/10.52842/conf.ecaade.2019.1.785
source Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 1, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 785-794
summary A common understanding exists that citizens should become more involved in the design, planning, and governance of the city. Due to a lack of common platforms and difficulties in the meaningful integration of the participatory input, however, the tools and methods currently employed in citizen engagement are often ill connected to the design and governance tools and processes used by experts. In this paper we describe a Grasshopper and Rhino based approach, which allows designers to share a subset of the design space formed by parametric design variants with citizens via the online interface Beta.Speckle. In a user study we evaluated the usability of the tool as well as studied the design choices of participants, which were found to be influenced by preferences for visual order and underlying economic, social, and environmental values. For the future design of participatory exercises, it was concluded that indicators relating to citizens' values and preferences will allow for a more effective exploration of the design space and increase the meaningfulness of results.
keywords design space exploration; citizen engagement; parametric urban design; computational urban planning; space matrix
series eCAADeSIGraDi
email
last changed 2022/06/07 07:51

_id cf2005_1_37_234
id cf2005_1_37_234
authors KNIGHT Michael, DOKONAL Wolfgang, BROWN Andre and HANNIBAL Claire
year 2005
title Contemporary Digital Techniques in the Early Stages of Design
source Computer Aided Architectural Design Futures 2005 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-3460-1] Vienna (Austria) 20–22 June 2005, pp. 165-174
summary This paper reviews the role that computers can play in the early design stages and considers how far recent developments in commercial software have enabled designers to improve design performance through interaction with a CAAD system. An experimental approach is reported on.
keywords design methodology, sketch, traditional, practice
series CAAD Futures
email
last changed 2006/11/07 07:27

_id ecaade03_153_183_knight
id ecaade03_153_183_knight
authors Knight, M. Brown, A.G.P., Hannibal, C., Noyelle, C. and Steer, O.
year 2003
title Measurement of Presence in Large Scale Virtual Environments
doi https://doi.org/10.52842/conf.ecaade.2003.153
source Digital Design [21th eCAADe Conference Proceedings / ISBN 0-9541183-1-6] Graz (Austria) 17-20 September 2003, pp. 153-160
summary It is now widely accepted that a sense of presence in a virtual environment is a crucial part of the success of the ‘experience’. This paper extends the authors previous work in naturalistic interfaces and perception of image to test experimentally the degree to which the type of interface and visual nature of the virtual environment determine the experience of presence or ‘being there’ in a large scale architectural virtual environment. The importance of presence to the success of architectural virtual environments is an important discussion. Should architectural VEs strive to be hyper-real (with all the attendant hardware issues of manipulating large amounts of data in real-time) or does a degree of abstraction in representation still afford an acceptable degree of presence?
keywords Virtual Environments, Presence
series eCAADe
email
more www.liv.ac.uk/abe/caadru
last changed 2022/06/07 07:51

_id d5b3
authors Knight, Michael and Brown, Andre
year 1999
title Working in Virtual Environments through appropriate Physical Interfaces
doi https://doi.org/10.52842/conf.ecaade.1999.431
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 431-436
summary The work described here is aimed at contributing towards the debate and development relating to the construction of interfaces to explore buildings and their environs through virtual worlds. We describe a particular hardware and software configuration which is derived by the use of low cost games software to create the Virtual Environment. The Physical Interface responds to the work of other researchers, in this area, in particular Shaw (1994) and Vasquez de Velasco & Trigo (1997). Virtual Evironments might have the potential to be "a magical window into other worlds, from molecules to minds" (Rheingold, 1992), but what is the nature of that window? Currently it is often a translucent opening which gives a hazy and distorted (disembodied) view. And many versions of such openings are relatively expensive. We consider ways towards clearing the haze without too much expense, adapting techniques proposed by developers of low cost virtual reality systems (Hollands, 1995) for use in an architectural setting.
keywords Virtual Environments, Games Software
series eCAADe
email
last changed 2022/06/07 07:51

_id 2004_167
id 2004_167
authors Knight, Michael and Brown, Andre
year 2004
title A Portable and Natural Interface to Architectural Virtual Environments
doi https://doi.org/10.52842/conf.ecaade.2004.167
source Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 167-172
summary In previous papers the authors have described low cost, pragmatic interaction devices for architectural virtual environments, in particular the bike as a means of locomotion around a virtual urban environment. They have also been involved in work on portable systems for city navigation and representation, based around a personal digital assistant running pseudo 3d models of the city with an associated information database. This paper describes work that develops the two ideas of familiar real world interaction device and portability to produce a portable system for interaction with architectural urban models.
keywords Virtual Environments; Locomotion; Portable; Interaction; Navigation
series eCAADe
email
last changed 2022/06/07 07:51

_id 06e8
authors Knight, Michael W. and Brown, Andre G.P.
year 2000
title Interfaces for Virtual Environments; A Review Recent Developments and Potential Ways forward
doi https://doi.org/10.52842/conf.ecaade.2000.215
source Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 215-219
summary The physical and visual nature of the interface devices and media that enable the human agent to interact with a virtual world have evolved over the past few years. In this paper we consider the different lines of development that have taken place in the refinement of these interfaces and summarise what has been learned about the appropriate nature of the interface for such interaction. In terms of the physical aspects we report on the kind of devices that have been used to enable the human agent to operate within the computer generated environment. We point out the successes and failures in the systems that have been tried out in recent years. Likewise we consider the kinds of software generated interface that have been used to represent virtual worlds. Again, we review the efficacy of the environments that have been devised; the quality of the Cyberplace. Our aim is to be able to comment on the effectiveness of the systems that have been devised from a number of points of view. We consider the physical and software-based aids for navigation; the nature of the representation of architectural worlds; strengthening “groundedness”; the inclusion of “otherness”; and reinforcement of the idea of “presence”
keywords Virtual Environments, Games Engines, Collaborative Design, Navigation Metaphors
series eCAADe
email
more http://www.uni-weimar.de/ecaade/
last changed 2022/06/07 07:51

_id caadria2003_a5-1
id caadria2003_a5-1
authors Knight, Michael W. and Brown, Andre G.P.
year 2003
title NAVRgate X, A Naturalistic Navigation Metaphor for Large Scale Virtual Environments
doi https://doi.org/10.52842/conf.caadria.2003.625
source CAADRIA 2003 [Proceedings of the 8th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 974-9584-13-9] Bangkok Thailand 18-20 October 2003, pp. 625-630
summary This paper describes the latest in a series of real-world, low-cost interfaces for virtual reality. nAVRgate (the AVR being Architectural Virtual Reality) has looked at real-world analogies for interfacing with 'real' virtual environments in an attempt to improve the sense of presence, the phenomenon of sense of presence in virtual environments (VEs) often being seen as the real essence of Virtual Reality (Laurel, 1993)
series CAADRIA
email
last changed 2022/06/07 07:51

_id ecaade2009_139
id ecaade2009_139
authors Knight, Michael; Dokonal, Wolfgang
year 2009
title State of Affairs - Digital Architectural Design in Europe: A Look into into Education and Practice – Snapshot and Outlook
doi https://doi.org/10.52842/conf.ecaade.2009.191
source Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 191-196
summary This paper updates a research project that tries to take a snapshot on the use of computers in the average architectural firms in two European countries. Our main interest is to see whether the digital design methods are starting to have an impact in these offices. First results of this research using an online web questionnaire have been presented at the eCAADe 2007 conference in Frankfurt and have been updated and presented at the Sigradi 2008 conference in Havana. At the moment we are working with additional interviews and we are preparing a rerun of the questionnaire to have an idea about the current developments. This paper is still based mainly on the findings we presented at the Sigradi conference to bring this information to the eCAADe community as well. We will be presenting the results of the new questionnaire in Istanbul.
wos WOS:000334282200023
keywords Digital design, early stage design
series eCAADe
email
last changed 2022/06/07 07:51

_id 96d0
authors Knight, Mike W. and Brown, André
year 2000
title Towards Naturalistic Navigation Metaphors for large scale Virtual Environments
source SIGraDi’2000 - Construindo (n)o espacio digital (constructing the digital Space) [4th SIGRADI Conference Proceedings / ISBN 85-88027-02-X] Rio de Janeiro (Brazil) 25-28 september 2000, pp. 247-250
summary This paper looks at the background to the development of alternative interfaces to Virtual Environments and suggests a reappraisal of some of the early work which allowed a sense of presence in the ‚real’ world. Initial work, the virtual exercise bike, is appraised, and new work is described which further develops the development of a low-cost interface system. Work in progress is described which is a combination of hard- and software. The solution described is a ‚hands free’ interface enabling the user to experience a VE in a similar manner to a physical environment, using movements of the head and feet for navigation. Whilst this is possible using expensive, proprietary equipment, the presented solution concentrates on a low cost approach. In line with this, the system uses a low cost gaming environment which is described and evaluated.
series SIGRADI
email
last changed 2016/03/10 09:54

_id ecaade2008_193
id ecaade2008_193
authors Knight, Mike; Chen, Yu-Horng; Winchester, Martin; Brown, Andre
year 2008
title Perception, Placement and Wayfinding Applied to Mobile Architectural Guides
doi https://doi.org/10.52842/conf.ecaade.2008.215
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 215-220
summary This paper describes continuing developments of mobile architectural guides. In using the term mobile we refer to a range of hand-held wireless enabled devices. These device present particular problems in terms of user interaction with a set of graphic and textual information that is intended to deliver information on routefinding and the important architectural features that the user will come across en route. This paper describes some of the issues that arise and user testing to determine improvements to the system being used.
keywords Mobile: Guides: Interface
series eCAADe
email
last changed 2022/06/07 07:51

_id fb37
authors Knight, T.
year 1999
title Applications in architectural design and education and practice
source Report for the NSF/MIT Workshop on Shape Computation, Cambridge, Mass., 25-26 April 1999
summary Shortly after shape grammars were invented by Stiny and Gips, a two part project for shape grammars was outlined by Stiny. In a 1976 paper,1 Stiny described "two exercises in formal composition". These simple exercises became the foundation for the many applications of shape grammars that followed, and suggested the potential of such applications in education and practice. The first exercise showed how shape grammars could be used in original composition, that is, the creation of new design languages or styles from scratch. The second exercise showed how shape grammars could be used to analyze known or existing design languages. Both exercises illustrated the unique characteristics of the shape grammar formalism that helped motivate a quarter century (almost!) of shape grammar work. General but simple, formal yet intuitive: qualities that continue to make shape grammar disciples and confound skeptics. The history of shape grammar applications in architecture and the arts for the two complementary purposes of synthesis and analysis, as well as for a third, joint purpose is sketched in the first section of this report. These three categories of applications do not have rigid boundaries. They are used in this report mostly as a framework for discussion. An overview of the roles of shape grammar applications in education and practice is given in the second section. New and ongoing issues concerning shape grammars in education and practice are discussed in the last section.
series report
last changed 2003/04/23 15:50

_id acadia23_v3_91
id acadia23_v3_91
authors Knight, Terry
year 2023
title Teaching Award of Excellence
source ACADIA 2023: Habits of the Anthropocene: Scarcity and Abundance in a Post-Material Economy [Volume 3: Proceedings of the 43rd Annual Conference for the Association for Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9891764-1-0]. Denver. 26-28 October 2023. edited by A. Crawford, N. Diniz, R. Beckett, J. Vanucchi, M. Swackhamer 24-32.
summary My work is research focused. Broadly speaking, I’m interested in the “How” of creative production, as opposed to the “What”. I ask “How is this?” not “What is this?” I am interested in “How” designs and things are made or become, in the processes or paths to form, whether abstract or material. As a process carried out over time, computation offers a unique means for understanding and describing the “How” of design and making. I explore this potential with shape grammars and, most recently, with making grammars. The unique visual and spatial nature of the rules and computations of these grammars is aimed at unveiling the “How” in design.
series ACADIA
type award
email
last changed 2024/04/17 13:59

_id 2559
authors Knight, Terry W.
year 1991
title Designing with Grammars
source Computer Aided Architectural Design Futures: Education, Research, Applications [CAAD Futures ‘91 Conference Proceedings / ISBN 3-528-08821-4] Zürich (Switzerland), July 1991, pp. 33-48
summary Shape grammars that generate languages of designs have been used widely over the past several years to describe and understand a diversity of architectural and other styles of designs. These grammars have been developed to address two fundamental concerns in design: 1) the analysis of contemporary or historic styles of designs, and 2) the synthesis or creation of completely new and original styles of designs. Most applications of shape grammars so far have been concerned with analysis. The creative use of shape grammars - the use of grammars to invent new architectural or other designs - has not been exploited nearly as well. A new series of exercises for designing with shape grammars, and also with color grammars, is sketched informally here. These exercises are currently being used in classes in the Architecture and Urban Design Program at U.C.L.A.
series CAAD Futures
last changed 1999/04/07 12:03

_id ac18
authors Knight, Terry W.
year 1986
title Transformations of Languages of Designs
source University of California, Graduate School of Architecture and Urban PIanning, Los Angeles
summary Stylistic change and innovation is a central and traditional issue in art and architecture. In this study, a formal model is developed for representing stylistic change. Styles are defined in terms of rule-based systems called shape grammars that generate languages of designs. Changes in styles are represented as transformations of the shape grammars that define these styles. The model is first sketched informally and considered in relation to other, traditional approaches to style and change. It is then presented in detail and illustrated with numerous simple examples. Last, the model is applied to describe actual, historical examples of stylistic transformations: one in the decorative arts, one in the fine arts, and one in architecture.
series thesis:PhD
email
last changed 2003/02/12 22:37

_id sigradi2008_175
id sigradi2008_175
authors Knight, Terry; Larry Sass, Kenfield Griffith, Ayodh Vasant Kamath
year 2008
title Visual-Physical Grammars
source SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary This paper introduces new visual-physical design grammars for the design and manufacture of building assembly systems that provide visually rich, culturally resonant design variations for housing. The building systems are intended to be tailored for particular cultures and communities by incorporating vernacular, decorative design into the assembly design. Two complementary areas of computational design research are brought together in this work: shape grammars and digital fabrication. The visual or graphic aspects of the research are explored through shape grammars. The physical design and manufacturing aspects are explored through advanced digital design and fabrication technologies and, in particular, build on recent work on mono-material assemblies with interlocking components that can be fabricated with CNC machines and assembled easily by hand on-site (Sass, 2007). This paper describes the initial, proof-of-concept stage of this work: the development of an automated, visual-physical grammar for an assembly system based on a vernacular language of Greek meander designs. A shape grammar for the two-dimensional Greek meander language (Knight, 1986) was translated into a three-dimensional assembly system. The components of the system are uniquely designed, concrete “meander bricks” (Figure 1). The components have integrated alignment features so that they can be easily fitted and locked together manually without binding materials. Components interlock horizontally to form courses, and courses interlock vertically in different ways to produce a visual variety of meander walls. The assembly components were prototyped at desktop scale with a layered manufacturing machine to test their appearance after assembly and their potential for design variations (Figure 2). Components were then evaluated as full-scale concrete objects for satisfaction of physical constraints related to concrete forming and component strength. The automated grammar (computer program) for this system generates assembly design variations with complete CAD/CAM data for fabrication of components formed from layered, CNC cut molds. Using the grammar, a full-scale mockup of a corner wall section was constructed to assess the structural, material, and aesthetic feasibility of the system, as well as ease of assembly. The results of this study demonstrate clearly the potentials for embedding visual properties in structural systems. They provide the foundations for further work on assembly systems for complete houses and other small-scale structures, and grammars to generate them. In the long-term, this research will lead to new solutions for economical, easily manufactured housing which is especially critical in developing countries and for post-disaster environments. These new housing solutions will not only provide shelter but will also support important cultural values through the integration of familiar visual design features. The use of inexpensive, portable digital design and fabrication technologies will allow local communities to be active, cooperative participants in the design and construction of their homes. Beyond the specific context of housing, visual-physical grammars have the potential to positively impact design and manufacture of designed artifacts at many scales, and in many domains, particularly for artifacts where visual aesthetics need to be considered jointly with physical or material requirements and design customization or variation is important.
keywords Shape grammar, digital fabrication, building assembly, mass customization, housing
series SIGRADI
email
last changed 2016/03/10 09:54

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