Cumincad : CUMINCAD Papers : Search Results

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	48a7
authors	Brooks
year	1999
title	What's Real About Virtual Reality
source	IEEE Computer Graphics and Applications, Vol. 19, no. 6, Nov/Dec, 27
summary	As is usual with infant technologies, the realization of the early dreams for VR and harnessing it to real work has taken longer than the wild hype predicted, but it is now happening. I assess the current state of the art, addressing the perennial questions of technology and applications. By 1994, one could honestly say that VR "almost works." Many workers at many centers could doe quite exciting demos. Nevertheless, the enabling technologies had limitations that seriously impeded building VR systems for any real work except entertainment and vehicle simulators. Some of the worst problems were end-to-end system latencies, low-resolution head-mounted displays, limited tracker range and accuracy, and costs. The technologies have made great strides. Today one can get satisfying VR experiences with commercial off-the-shelf equipment. Moreover, technical advances have been accompanied by dropping costs, so it is both technically and economically feasible to do significant application. VR really works. That is not to say that all the technological problems and limitations have been solved. VR technology today "barely works." Nevertheless, coming over the mountain pass from "almost works" to "barely works" is a major transition for the discipline. I have sought out applications that are now in daily productive use, in order to find out exactly what is real. Separating these from prototype systems and feasibility demos is not always easy. People doing daily production applications have been forthcoming about lessons learned and surprises encountered. As one would expect, the initial production applications are those offering high value over alternate approaches. These applications fall into a few classes. I estimate that there are about a hundred installations in daily productive use worldwide.
series	journal paper
email
last changed	2003/04/23 15:14

_id	ga0015
id	ga0015
authors	Daru, R., Vreedenburgh, E. and Scha, R.
year	2000
title	Architectural Innovation as an evolutionary process
source	International Conference on Generative Art
summary	Traditionally in art and architectural history, innovation is treated as a history of ideas of individuals (pioneers), movements and schools. The monograph is in that context one of the most used forms of scientific exercise. History of architecture is then mostly seen as a succession of dominant architectural paradigms imposed by great architectural creators fighting at the beginning against mainstream establishment until they themselves come to be recognised. However, there have been attempts to place architectural innovation and creativity in an evolutionary perspective. Charles Jencks for example, has described the evolution of architectural and art movements according to a diagram inspired by ecological models. Philip Steadman, in his book "The Evolution of Designs. Biological analogy in architecture and the applied arts" (1979), sketches the history of various biological analogies and their impact on architectural theory: the organic, classificatory, anatomical, ecological and Darwinian or evolutionary analogies. This last analogy "explains the design of useful objects and buildings, particularly in primitive society and in the craft tradition, in terms of a sequence of repeated copyings (corresponding to inheritance), with small changes made at each stage ('variations'), which are then subjected to a testing process when the object is put into use ('selection')." However, Steadman has confined his study to a literature survey as the basis of a history of ideas. Since this pioneering work, new developments like Dawkins' concept of memes allow further steps in the field of cultural evolution of architectural innovation. The application of the concept of memes to architectural design has been put forward in a preceding "Generative Art" conference (Daru, 1999), showing its application in a pilot study on the analysis of projects of and by architectural students. This first empirical study is now followed by a study of 'real life' architectural practice. The case taken has a double implication for the evolutionary analogy. It takes a specific architectural innovative concept as a 'meme' and develops the analysis of the trajectory of this meme in the individual context of the designer and at large. At the same time, the architect involved (Eric Vreedenburgh, Archipel Ontwerpers) is knowledgeable about the theory of memetic evolution and is applying a computer tool (called 'Artificial') together with Remko Scha, the authoring computer scientist of the program who collaborates frequently with artists and architects. This case study (the penthouse in Dutch town planning and the application of 'Artificial') shall be discussed in the paper as presented. The theoretical and methodological problems of various models of diffusion of memes shall be discussed and a preliminary model shall be presented as a framework to account for not only Darwinian but also Lamarckian processes, and for individual as well as collective transmission, consumption and creative transformation of memes.
keywords	evolutionary design, architectural innovation, memetic diffusion, CAAD, penthouses, Dutch design, creativity, Darwinian and Lamarckian processes
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga0026
id	ga0026
authors	Ransen, Owen F.
year	2000
title	Possible Futures in Computer Art Generation
source	International Conference on Generative Art
summary	Years of trying to create an "Image Idea Generator" program have convinced me that the perfect solution would be to have an artificial artistic person, a design slave. This paper describes how I came to that conclusion, realistic alternatives, and briefly, how it could possibly happen. 1. The history of Repligator and Gliftic 1.1 Repligator In 1996 I had the idea of creating an “image idea generator”. I wanted something which would create images out of nothing, but guided by the user. The biggest conceptual problem I had was “out of nothing”. What does that mean? So I put aside that problem and forced the user to give the program a starting image. This program eventually turned into Repligator, commercially described as an “easy to use graphical effects program”, but actually, to my mind, an Image Idea Generator. The first release came out in October 1997. In December 1998 I described Repligator V4 [1] and how I thought it could be developed away from simply being an effects program. In July 1999 Repligator V4 won the Shareware Industry Awards Foundation prize for "Best Graphics Program of 1999". Prize winners are never told why they won, but I am sure that it was because of two things: 1) Easy of use 2) Ease of experimentation "Ease of experimentation" means that Repligator does in fact come up with new graphics ideas. Once you have input your original image you can generate new versions of that image simply by pushing a single key. Repligator is currently at version 6, but, apart from adding many new effects and a few new features, is basically the same program as version 4. Following on from the ideas in [1] I started to develop Gliftic, which is closer to my original thoughts of an image idea generator which "starts from nothing". The Gliftic model of images was that they are composed of three components: 1. Layout or form, for example the outline of a mandala is a form. 2. Color scheme, for example colors selected from autumn leaves from an oak tree. 3. Interpretation, for example Van Gogh would paint a mandala with oak tree colors in a different way to Andy Warhol. There is a Van Gogh interpretation and an Andy Warhol interpretation. Further I wanted to be able to genetically breed images, for example crossing two layouts to produce a child layout. And the same with interpretations and color schemes. If I could achieve this then the program would be very powerful. 1.2 Getting to Gliftic Programming has an amazing way of crystalising ideas. If you want to put an idea into practice via a computer program you really have to understand the idea not only globally, but just as importantly, in detail. You have to make hard design decisions, there can be no vagueness, and so implementing what I had decribed above turned out to be a considerable challenge. I soon found out that the hardest thing to do would be the breeding of forms. What are the "genes" of a form? What are the genes of a circle, say, and how do they compare to the genes of the outline of the UK? I wanted the genotype representation (inside the computer program's data) to be directly linked to the phenotype representation (on the computer screen). This seemed to be the best way of making sure that bred-forms would bare some visual relationship to their parents. I also wanted symmetry to be preserved. For example if two symmetrical objects were bred then their children should be symmetrical. I decided to represent shapes as simply closed polygonal shapes, and the "genes" of these shapes were simply the list of points defining the polygon. Thus a circle would have to be represented by a regular polygon of, say, 100 sides. The outline of the UK could easily be represented as a list of points every 10 Kilometers along the coast line. Now for the important question: what do you get when you cross a circle with the outline of the UK? I tried various ways of combining the "genes" (i.e. coordinates) of the shapes, but none of them really ended up producing interesting shapes. And of the methods I used, many of them, applied over several "generations" simply resulted in amorphous blobs, with no distinct family characteristics. Or rather maybe I should say that no single method of breeding shapes gave decent results for all types of images. Figure 1 shows an example of breeding a mandala with 6 regular polygons: Figure 1 Mandala bred with array of regular polygons I did not try out all my ideas, and maybe in the future I will return to the problem, but it was clear to me that it is a non-trivial problem. And if the breeding of shapes is a non-trivial problem, then what about the breeding of interpretations? I abandoned the genetic (breeding) model of generating designs but retained the idea of the three components (form, color scheme, interpretation). 1.3 Gliftic today Gliftic Version 1.0 was released in May 2000. It allows the user to change a form, a color scheme and an interpretation. The user can experiment with combining different components together and can thus home in on an personally pleasing image. Just as in Repligator, pushing the F7 key make the program choose all the options. Unlike Repligator however the user can also easily experiment with the form (only) by pushing F4, the color scheme (only) by pushing F5 and the interpretation (only) by pushing F6. Figures 2, 3 and 4 show some example images created by Gliftic. Figure 2 Mandala interpreted with arabesques Figure 3 Trellis interpreted with "graphic ivy" Figure 4 Regular dots interpreted as "sparks" 1.4 Forms in Gliftic V1 Forms are simply collections of graphics primitives (points, lines, ellipses and polygons). The program generates these collections according to the user's instructions. Currently the forms are: Mandala, Regular Polygon, Random Dots, Random Sticks, Random Shapes, Grid Of Polygons, Trellis, Flying Leap, Sticks And Waves, Spoked Wheel, Biological Growth, Chequer Squares, Regular Dots, Single Line, Paisley, Random Circles, Chevrons. 1.5 Color Schemes in Gliftic V1 When combining a form with an interpretation (described later) the program needs to know what colors it can use. The range of colors is called a color scheme. Gliftic has three color scheme types: 1. Random colors: Colors for the various parts of the image are chosen purely at random. 2. Hue Saturation Value (HSV) colors: The user can choose the main hue (e.g. red or yellow), the saturation (purity) of the color scheme and the value (brightness/darkness) . The user also has to choose how much variation is allowed in the color scheme. A wide variation allows the various colors of the final image to depart a long way from the HSV settings. A smaller variation results in the final image using almost a single color. 3. Colors chosen from an image: The user can choose an image (for example a JPG file of a famous painting, or a digital photograph he took while on holiday in Greece) and Gliftic will select colors from that image. Only colors from the selected image will appear in the output image. 1.6 Interpretations in Gliftic V1 Interpretation in Gliftic is best decribed with a few examples. A pure geometric line could be interpreted as: 1) the branch of a tree 2) a long thin arabesque 3) a sequence of disks 4) a chain, 5) a row of diamonds. An pure geometric ellipse could be interpreted as 1) a lake, 2) a planet, 3) an eye. Gliftic V1 has the following interpretations: Standard, Circles, Flying Leap, Graphic Ivy, Diamond Bar, Sparkz, Ess Disk, Ribbons, George Haite, Arabesque, ZigZag. 1.7 Applications of Gliftic Currently Gliftic is mostly used for creating WEB graphics, often backgrounds as it has an option to enable "tiling" of the generated images. There is also a possibility that it will be used in the custom textile business sometime within the next year or two. The real application of Gliftic is that of generating new graphics ideas, and I suspect that, like Repligator, many users will only understand this later. 2. The future of Gliftic, 3 possibilties Completing Gliftic V1 gave me the experience to understand what problems and opportunities there will be in future development of the program. Here I divide my many ideas into three oversimplified possibilities, and the real result may be a mix of two or all three of them. 2.1 Continue the current development "linearly" Gliftic could grow simply by the addition of more forms and interpretations. In fact I am sure that initially it will grow like this. However this limits the possibilities to what is inside the program itself. These limits can be mitigated by allowing the user to add forms (as vector files). The user can already add color schemes (as images). The biggest problem with leaving the program in its current state is that there is no easy way to add interpretations. 2.2 Allow the artist to program Gliftic It would be interesting to add a language to Gliftic which allows the user to program his own form generators and interpreters. In this way Gliftic becomes a "platform" for the development of dynamic graphics styles by the artist. The advantage of not having to deal with the complexities of Windows programming could attract the more adventurous artists and designers. The choice of programming language of course needs to take into account the fact that the "programmer" is probably not be an expert computer scientist. I have seen how LISP (an not exactly easy artificial intelligence language) has become very popular among non programming users of AutoCAD. If, to complete a job which you do manually and repeatedly, you can write a LISP macro of only 5 lines, then you may be tempted to learn enough LISP to write those 5 lines. Imagine also the ability to publish (and/or sell) "style generators". An artist could develop a particular interpretation function, it creates images of a given character which others find appealing. The interpretation (which runs inside Gliftic as a routine) could be offered to interior designers (for example) to unify carpets, wallpaper, furniture coverings for single projects. As Adrian Ward [3] says on his WEB site: "Programming is no less an artform than painting is a technical process." Learning a computer language to create a single image is overkill and impractical. Learning a computer language to create your own artistic style which generates an infinite series of images in that style may well be attractive. 2.3 Add an artificial conciousness to Gliftic This is a wild science fiction idea which comes into my head regularly. Gliftic manages to surprise the users with the images it makes, but, currently, is limited by what gets programmed into it or by pure chance. How about adding a real artifical conciousness to the program? Creating an intelligent artificial designer? According to Igor Aleksander [1] conciousness is required for programs (computers) to really become usefully intelligent. Aleksander thinks that "the line has been drawn under the philosophical discussion of conciousness, and the way is open to sound scientific investigation". Without going into the details, and with great over-simplification, there are roughly two sorts of artificial intelligence: 1) Programmed intelligence, where, to all intents and purposes, the programmer is the "intelligence". The program may perform well (but often, in practice, doesn't) and any learning which is done is simply statistical and pre-programmed. There is no way that this type of program could become concious. 2) Neural network intelligence, where the programs are based roughly on a simple model of the brain, and the network learns how to do specific tasks. It is this sort of program which, according to Aleksander, could, in the future, become concious, and thus usefully intelligent. What could the advantages of an artificial artist be? 1) There would be no need for programming. Presumbably the human artist would dialog with the artificial artist, directing its development. 2) The artificial artist could be used as an apprentice, doing the "drudge" work of art, which needs intelligence, but is, anyway, monotonous for the human artist. 3) The human artist imagines "concepts", the artificial artist makes them concrete. 4) An concious artificial artist may come up with ideas of its own. Is this science fiction? Arthur C. Clarke's 1st Law: "If a famous scientist says that something can be done, then he is in all probability correct. If a famous scientist says that something cannot be done, then he is in all probability wrong". Arthur C Clarke's 2nd Law: "Only by trying to go beyond the current limits can you find out what the real limits are." One of Bertrand Russell's 10 commandments: "Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric" 3. References 1. "From Ramon Llull to Image Idea Generation". Ransen, Owen. Proceedings of the 1998 Milan First International Conference on Generative Art. 2. "How To Build A Mind" Aleksander, Igor. Wiedenfeld and Nicolson, 1999 3. "How I Drew One of My Pictures: or, The Authorship of Generative Art" by Adrian Ward and Geof Cox. Proceedings of the 1999 Milan 2nd International Conference on Generative Art.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga9911
id	ga9911
authors	Riley, Howard
year	1999
title	Semiotics and Generative Art
source	International Conference on Generative Art
summary	The paper begins with a brief explanation of David Marr’s computational theory of visual perception, and his key terms. Marr argued that vision consists in the algorithmic transformation of retinal images so as to produce output of viewer-centred and object-centred representations from an input at the retinae. Those two kinds of output, the viewer-centred and the object-centred representations, enable us to negotiate the physical world. The paper goes on to suggest that the activity of Drawing is comparable as a process of transformation: a picture is a transformation from either viewer-centred, or object-centred descriptions, or a combination of both types of representation, to a two-dimensional drawn representation. These pictures may be described as resulting from algorithmic transformations since picture-making utilises specific geometric procedures for transforming input (our perceptions) into output (our drawings). However, a key point is made about such algorithms: they are culturally-determined. They may be defined in terms of the procedure of selecting and combining choices from the matrix of semiotic systems available within a particular social context. These systems are presented in the paper as a Chart, and are further correlated with the social functions of a communication system such as Drawing. Thus, the paper proposes a systemic-functional semiotics of Drawing, within which algorithms operate to realise specific cultural values in material form. Familiar algorithms are illustrated, such as those governing the transformation of the physics of an array of light at the eye into the set of representations known as perspective projection systems; and also illustrated in the paper are less familiar algorithms devised by artists such as Kenneth Martin and Sol LeWitt.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga9903
id	ga9903
authors	Ward, Adrian and Cox, Geoff
year	1999
title	How I Drew One of My Pictures: * or, The Authorship of Generative Art
source	International Conference on Generative Art
summary	The concept of value is traditionally bestowed on a work of art when it is seen to be unique and irreproducible, thereby granting it authenticity. Think of a famous painting: only the original canvas commands genuinely high prices. Digital artwork is not valued in the same way. It can be copied infinitely and there is therefore a corresponding crisis of value. It has been argued that under these conditions of the dematerialised artwork, it is process that becomes valued. In this way, the process of creation and creativity is valued in place of authenticity, undermining conventional notions of authorship. It is possible to correlate many of these creative processes into instructions. However, to give precise instructions on the construction of a creative work is a complex, authentic and intricate process equivalent to conventional creative work (and is therefore not simply a question of 'the death of the author'). This paper argues that to create ‘generative’ systems is a rigorous and intricate procedure. Moreover, the output from generative systems should not be valued simply as an endless, infinite series of resources but as a system. To have a machine write poetry for ten years would not generate creative music, but the process of getting the machine to do so would certainly register an advanced form of creativity. When a programmer develops a generative system, they are engaged in a creative act. Programming is no less an artform than painting is a technical process. By analogy, the mathematical value pi can be approximated as 3.14159265, but a more thorough and accurate version can be stored as the formula used to calculate it. In the same way, it is more complete to express creativity formulated as code, which can then be executed to produce the results we desire. Rather like using Leibnitz's set of symbols to represent a mathematical formula, artists can now choose to represent creativity as computer programs (Harold Cohen’s Aaron, a computer program that creates drawings is a case in point). By programming computers to undertake creative instructions, this paper will argue that more accurate and expansive traces of creativity are being developed that suitably merge artistic subjectivity with technical form. It is no longer necessary or even desirable to be able to render art as a final tangible medium, but instead it is more important to program computers to be creative by proxy. [The paper refers to Autoshop software, available from http://autoshop.signwave.co.uk]
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga9922
id	ga9922
authors	Annunziato, M. and Pierucci, P.
year	1999
title	The Art of Emergence
source	International Conference on Generative Art
summary	Since several years, the term emergence is mentioned in the paradigm of chaos and complexity. Following this approach, complex system constituted by multitude of individual develop global behavioral properties on the base of local chaotic interactions (self-organization). These theories, developed in scientific and philosophical milieus are rapidly spreading as a "way of thinking" in the several fields of cognitive activities. According to this "way of thinking" it is possible revise some fundamental themes as the economic systems, the cultural systems, the scientific paths, the communication nets under a new approach where nothing is pre-determined, but the global evolution is determined by specific mechanisms of interaction and fundamental events (bifurcation). With a jump in scale of the life, also other basic concepts related to the individuals as intelligence, consciousness, psyche can be revised as self-organizing phenomena. Such a conceptual fertility has been the base for the revision of the artistic activities as flexible instruments for the investigation of imaginary worlds, metaphor of related real worlds. In this sense we claim to the artist a role of "researcher". Through the free exploration of new concepts, he can evoke qualities, configurations and hypothesis which have an esthetical and expressive value and in the most significant cases, they can induce nucleation of cultural and scientific bifurcation. Our vision of the art-science relation is of cooperative type instead of the conflict of the past decades. In this paper we describe some of the most significant realized artworks in order to make explicit the concepts and basic themes. One of the fundamental topics is the way to generate and think to the artwork. Our characterization is to see the artwork not as a static finished product, but as an instance or a dynamic sequence of instances of a creative process which continuously evolves. In this sense, the attention is focused on the "generative idea" which constitutes the envelop of the artworks generable by the process. In this approach the role of technology (computers, synthesizers) is fundamental to create the dimension of the generative environment. Another characterizing aspect of our artworks is derived by the previous approach and specifically related to the interactive installations. The classical relation between artist, artwork and observers is viewed as an unidirectional flux of messages from the artist to the observer through the artwork. In our approach artist, artwork and observer are autonomous entities provided with own personality which jointly intervene to determine the creative paths. The artist which generate the environment in not longer the "owner" of the artwork; simply he dialectically bring the generative environment (provided by a certain degree of autonomy) towards cultural and creative "void" spaces (not still discovered). The observers start from these platforms to generate other creative paths, sometimes absolutely unexpected , developing their new dialectical relations with the artwork itself. The results derived by these positions characterize the expressive elements of the artworks (images, sequences and sounds) as the outcomes of emergent behavior or dynamics both in the sense of esthetical shapes emergent from fertile generative environments, either in terms of emergent relations between artist, artwork and observer, either in terms of concepts which emerge by the metaphor of artificial worlds to produce imaginary hypothesis for the real worlds.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	f58e
authors	Bugay, Edson Luiz and Ulbricht, Vania Ribas
year	1999
title	Hipermidia para Ensino de Render no AutoCad 14 (Hypermedia for the Tachinf of Render 14 AutoCad)
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 280-284
summary	Hypermedia applications in education have grown very much and are nowadays available in a great variety of titles covering a major extension of topics. However most of these applications have not gathered too much pedagogic embodiment and when they do have it, it is rather nearly to the intuitive level than based on one or more pedagogic theories. This paper's objective is to provide a practical view of hypermedia directed to teaching which has formed the development basis of a prototype for teaching render in Autocad 14. The several stages' view of developing an hypermedia were considered in the process of the prototype's creation such as the theme's definition, the staffs composition, the metaphor's choice, and the pedagogic model are discussed in details, as well as the several stages that should be followed since the proposals beginning until the product's final distribution. The chosen metaphor is the one of an art study having in mind the meaning of the word "render" being "the artistic representation of a model" once defined the metaphor, the screen's graphical part were developed accordingly.
keywords	Hypermedia, Rendering, Learning, Teaching
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ga9915
id	ga9915
authors	Calio, F. and Marchetti, E.
year	1999
title	Linear algebra and creative process
source	International Conference on Generative Art
summary	Mathematical methods providing metamorphosis of three-dimensional objects are considered. Linear algebra is the basic tool : precisely linear transformations depending on a parameter are the way to produce the basic surface, moreover logic rules of manipulation of its parametric equations allow the realization of the generative process. We think that mathematical methods introduced into a generative approach can increase the performances in the designing evolution. This paper illustrates an example realized by modifying mathematically a three-dimensional form, whose initial idea is recognisable at every step.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	840e
authors	Ceccato, C.
year	1999
title	Microgenesis. The Architect as Toolmaker: Computer-Based GenerativeDesign Tools and Methods
source	Soddu, C. (ed.): The Proceedings of the First International Generative Art Conference. Generative Design Lab at DiAP, Politecnico di Milano University
summary	The purpose of this paper is to illustrate the results of various stages of research into the development of generative design methods and tools, conducted at the Architectural Association School of Architecture (London), Imperial College of Science, Technology and Medicine (London), and independently. A brief introduction explains the philosophy behind generative design methods and their basic principles. A number of computer software tools and projects developed by the author are then used to illustrate the methodology, techniques and features of generative design and its organisation of information.
series	other
last changed	2003/04/23 15:14

_id	ga9913
id	ga9913
authors	Ceccato, Cristiano and Liauw, Laurence
year	1999
title	Parametric Urbanism: Explorations in Generative Urban Design
source	International Conference on Generative Art
summary	This paper is the result of several years of research by the Authors into the new field of generative design, as applied to urbanism. Its purpose is to formulate a concept of parametric urbanism and data-driven urban design, and how it departs from existing concepts of urban analysis and resulting design methods. This paper first gives a definition and description of the notion of generative urban design, and its relevance to current the practice of architecture and global political, sociological and economic developments. The difference between dogmatic forms of urban design and new parametric research methods is explained, and the Authors argue the fundamental relevance of using examples of post-colonial large-scale projects. In support of this, the Authors explore the widening field of research into parametric and data-driven architecture and urban design and the history of rule-based and evolutionary design methodologies. The paper illustrates examples of successful research in the field of parametric and rule-based urban design, by the Authors as well as colleagues within the field. It surveys the Authors’ work done at the Architectural Association School of Architecture, at the Hong Kong Polytechnic University School of Design, as well as in practice and research-oriented consultancy. The projects illustrated support the thesis of parametric urbanism by showing its power and versatility when applied to very large-scale projects, in particular within the People’s Republic of China.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	a9b0
authors	Cha, Myung Yeol and Gero, John
year	1999
title	Style Learning: Inductive Generalisation of Architectural Shape Patterns
doi	https://doi.org/10.52842/conf.ecaade.1999.629
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 629-644
summary	Art historians and critics have defined the style as common features appeared in a class of objects. Abstract common features from a set of objects have been used as a bench mark for date and location of original works. Common features in shapes are identified by relationships as well as physical properties from shape descriptions. This paper will focus on how the computer recognises common shape properties from a class of shape objects to learn style. Shape representation using schema theory has been explored and possible inductive generalisation from shape descriptions has been investigated.
keywords	Style, Inductive Generalisation, Knowledge Representation, Shape
series	eCAADe
email
last changed	2022/06/07 07:55

_id	ga9904
id	ga9904
authors	Chupa, Anna
year	1999
title	Generative Texture Maps for Animation (artwork and paper)
source	International Conference on Generative Art
summary	An aperiodic planar tiling is employed as the initial structure for texture application. A generative process for texture metamorphosis is used to create variation producing two-dimensional art work intended for printed output. Two-dimensional animations demonstrate the process for producing new textures. Expanding from this preliminary test, rules for opacity and relative depth, scale and velocity of movement will be related the length of time a form is visible on screen and geometric form. These are demonstrated in a two-dimensional animation that uses pictorial depth cues such as atmospheric perspective, occlusion, vertical placement, and diminishing size. Modification of rules take into consideration two underlying philosophical assumptions: 1) the world is created by a benevolent "god" and 2) aesthetic criteria govern issues related to selection of visual forms that persist.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga9921
id	ga9921
authors	Coates, P.S. and Hazarika, L.
year	1999
title	The use of genetic programming for applications in the field of spatial composition
source	International Conference on Generative Art
summary	Architectural design teaching using computers has been a preoccupation of CECA since 1991. All design tutors provide their students with a set of models and ways to form, and we have explored a set of approaches including cellular automata, genetic programming ,agent based modelling and shape grammars as additional tools with which to explore architectural ( and architectonic) ideas.This paper discusses the use of genetic programming (G.P.) for applications in the field of spatial composition. CECA has been developing the use of Genetic Programming for some time ( see references ) and has covered the evolution of L-Systems production rules( coates 1997, 1999b), and the evolution of generative grammars of form (Coates 1998 1999a). The G.P. was used to generate three-dimensional spatial forms from a set of geometrical structures .The approach uses genetic programming with a Genetic Library (G.Lib) .G.P. provides a way to genetically breed a computer program to solve a problem.G. Lib. enables genetic programming to define potentially useful subroutines dynamically during a run .* Exploring a shape grammar consisting of simple solid primitives and transformations. * Applying a simple fitness function to the solid breeding G.P.* Exploring a shape grammar of composite surface objects. * Developing grammarsfor existing buildings, and creating hybrids. * Exploring the shape grammar of abuilding within a G.P.We will report on new work using a range of different morphologies ( boolean operations, surface operations and grammars of style ) and describe the use of objective functions ( natural selection) and the "eyeball test" ( artificial selection) as ways of controlling and exploring the design spaces thus defined.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga0020
id	ga0020
authors	Codignola, G.Matteo
year	2000
title	[Title missing]
source	International Conference on Generative Art
summary	This paper is a summary of my last degree in architecture (discussed in December 1999) with Prof. Celestino Soddu and Prof. Enrica Colabella. In this work I had the possibility to reach complexity by a generative approach with the construction of a paradigm that organizes the different codes of project identity. My general objective was to design shape complexity in variable categories : 3d space surfaces, 2d drawings and 2d textures. I was to discover the identity of one of my favourite architects of the 20th century : Antoni Gaudì, by constructing codes relative to shape complexity. I defined my particular objective in the possibility to abduct from Gaudì's imaginary reference the generatives codes that operate in the logical processing I use to create a possible species project. The next step was to verify the exact working of the new generative codes by means of 3d scenaries, that are recognizable as "Antoni Gaudì specie's architecture". Whit project processing on the generative codes and not on a possible resulting shape design, I was able to organize by my general paradigm the attributes of the project's species : different shapes, different attributes (color, scale, proportion), to get to possible and different scenarys, all recognizable by the relative class codes. I chose three examples in Barcellona built during the period 1902 to 1914 : The Parco Guell, Casa Batllò and Casa Milà are the three reference sceneryes that I used to create the generative codes. In the second step I defined different codes that operate in sequence (it is defined in the paradigm) : The generatives codes are only subjective; they are one possible solution of my interpretation of Antoni Gaudì's identity. This codes operate in four differents ways : Geometrical codes for 2d shapes Geometrical codes for interface relations Spatial codes for 3d extrusion of 2d shapes Geometrical codes for 2d and 3d texturing of generated surfaces. By a stratified application of this codes I arrived at one idea for all the generative processes but many different, possible scenaryes, all recognizable in Gaudì's species. So, my final result has made possible sceneryes belonging to related species defined previously. At the end of my research I designed a project by combination : using Antoni Gaudì's generative codes on a new 3d scenary with a shape catalyst : the Frank Lloyd Wright Guggenheim Museum of New York. In this process I created a "hybrid scenary" : a new species of architectural look; a Guggenheim museum planned by Wright with a god pinch of Gaudì.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	84e8
authors	Cohen, J.M., Markosian, L., Zeleznik, R.C., Hughes, J.F. and Barzel, R.
year	1999
title	An Interface for Sketching 3D Curves
source	ACM Symposium on Interactive 3D Graphics, pp. 17-22 (April 1999). ACM SIGGRAPH. Edited by Jessica Hodgins and James D. Foley
summary	The ability to specify nonplanar 3D curves is of fundamental importance in 3D modeling and animation systems. Effective techniques for specifying such curves using 2D input devices are desirable, but existing methods typically require the user to edit the curve from several viewpoints. We present a novel method for specifying 3D curves with 2D input from a single viewpoint. The user rst draws the curve as it appears from the current viewpoint, and then draws its shadow on the oor plane. The system correlates the curve with its shadow to compute the curve's 3D shape. This method is more natural than existing methods in that it leverages skills that many artists and designers have developed from work with pencil and paper.
series	other
last changed	2003/04/23 15:14

_id	ga9920
id	ga9920
authors	Daru, Roel
year	1999
title	Hunting Design Memes in the Architectural Studio, student projects as a source of memetic analysis
source	International Conference on Generative Art
summary	The current practice in design programming is to generate forms based on preconceptions of what architectural design is supposed to be. But to offer adequate morphogenetic programs for architectural design processes, we should identify the diversity of types of cultural replicators applied by a variety of architectural designers. In order to explore the variety of replicators actually used, around hundred 4th year architectural students were asked to analyse two or three of their own past design assignments. The students were invited to look for the occurrence of evolutionary design processes. They were requested to try and find some traces of 'transmission', 'variation' and 'selection' in their own design assignments. The paper will present an overview of their answers, the arguments applied and the diversity of the found types of verbal and visual design memes as cultural replicators. A discussion about the applicability of the found results in the genotypes and phenotypes of morphogenetic design software will conclude the presentation.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ae38
authors	Jabi, Wassim
year	1999
title	Integrating Databases, Objects and the World-Wide Web for Collaboration in Architectural Design
source	Proceedings of the focus symposium: World Wide Web as Framework for Collaboration in conjunction with the 11th International Conference on Systems Research, Informatics and Cybernetics, The International Institute for Advanced Studies in Systems Research
summary	Architectural design requires specialized vertical knowledge that goes beyond the sharing of marks on paper or the multi-casting of video images. This paper briefly surveys the state-ofthe- art in groupware and outlines the need for vertical and integrated support of synchronous and asynchronous design collaboration. The paper also describes a software prototype (WebOutliner) under development that uses a three-tier persistent object-oriented, web-based technology for a richer representation of hierarchical architectural artifacts using Apple’s WebObjects technology. The prototype contributes to earlier work that defined a framework for a shared workspace consisting of Participants, Tasks, Proposals, and Artifacts. These four elements have been found through observation and analysis to be adequate representations of the essential components of collaborative architectural design. These components are also hierarchical which allows users to filter information, copy completed solutions to other parts of the program, analyze and compare design parameters and aggregate hierarchical amounts. Given its object orientation, the represented artifacts have built-in data and methods that allow them to respond to user actions and manage their own sub-artifacts. In addition, the prototype integrates this technology with Java tools for ubiquitous synchronous web-based access. The prototype uses architectural programming (defining the spatial program of a building) and early conceptual design as examples of seamlessly integrated groupware applications.
keywords	Computer Supported Collaborative Design, WebObjects, Synchronous and Asynchronous Collaboration, Java Applets, Application Server, Web-based Interface
series	other
email
last changed	2002/03/05 19:55

_id	ga9917
id	ga9917
authors	Maia Jr., A., Valle, R. do, Manzolli, J. and Pereira, L.N.S.
year	1999
title	Generative Polymodal Music Process
source	International Conference on Generative Art
summary	We present underlying ideas used to develop an Algorithmic Composition software named KYKLOS. It was designed to generate music based on generalised musical scales and modes. It is an interactive sonic device to be applied in composition as well in performance. The sonic output of the whole process can be described as generalised polymodal music since “synthetic scales” are generated by the algorithm. This environment can be used in a Computer Assisted Composition manner in order to generate MIDI files. On the other hand, it can equally be used as a performance environment in which a dynamic change of parameters enables a real time control of the sonic process. Recently, we advocated that several mathematical applications in Computer Music can be understood as Sound Functors [1]. In extension, we describe here a sound functor used to model scales and modes. As can be verified, part of early investigations on mathematical structures in music studied musical scales and modes using Combinatorics, Fibonacci Series and Golden Mean in order to understand compositional processes which use modal concepts. Using the Functor definition it is possible to enumerate n-scales as a sequence of integers. Each value in that sequence gives the distance (in half tones) between two consecutive tones. For example, the sequence 3:2:2:3 is interpreted as a pentatonic scale C-Eb-F-G-Bb, and as defined above it is a C mode. So, if we apply cyclical permutations, (n-1)-sequences of numbers should be interpreted as n-modes of tones. Our algorithmic implementation is described briefly. A n-mode is defined as an array with n-1 integers [a1, a2, ...an-1]. Each array generated at k-th step can be read as a number a1a2a3 ....an-1 in decimal representation, where ai is a integer between 1 and 9. We denote the number obtained at k-th step as (a1a2a3 ...an-1)(k) . The rules to implement the algorithm are the following:1) V0 = (1, 1, 1, 1 ......,1) (initial n-mode)2) ? ai ? 11 with i= 1, 2...n-1 (octave range constraint)3) Vk = (a1a2a3 ...an-1)(k) < (b1b2b3 ...bn-1)(k+1) = Vk+1 where aj ?bj , 1? j ? n-1.4) Vmax = (13 – n, 1, 1, ...,1)In this paper we start with a theoretical view and an introduction on the algorithmic mechanism used. Further, we present a concept of man ? machine interaction used to create the composition environment. We also describe the compositional graphic interface developed and general functions of the system. Finally there is a set of music examples generated by KYKLOS as MIDI files.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga9905
id	ga9905
authors	Maldonado, Gabriel
year	1999
title	Generating digital music with DirectCsound & VMCI
source	International Conference on Generative Art
summary	This paper concerns two computer-music programs: DirectCsound, a real-time version of the well-known sound-synthesis language Csound, and VMCI, a GUI program that allow the user to control DirectCsound in real-time. DirectCsound allows a total live control of the synthesis process. The aim of DirectCsound project is to give the user a powerful and low-cost workstation in order to produce new sounds and new music interactively, and to make live performances with the computer. Try to imagine DirectCsound being a universal musical instrument. VMCI (Virtual Midi Control Interface) is a program which allows to send any kind of MIDI message by means of the mouse and the alpha-numeric keyboard. It has been thought to be used together with DirectCsound, but it can also be used to control any MIDI instrument. It provides several panels with virtual sliders, virtual joysticks and virtual-piano keyboard. The newer version of the program (VMCI Plus 2.0) allows the user to change more than one parameter at the same time by means of the new Hyper-Vectorial-Synthesis control. VMCI supports seven-bit data as well as higher-resolution fourteen-bit data, all supported by the newest versions of Csound.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	ga9910
id	ga9910
authors	Mottram, Chiron and Penn, Alan
year	1999
title	Slugfest
source	International Conference on Generative Art
summary	This paper describes the creation of interactive and responsive digital art. By adding a message handling interpreter to SGI's Performer software we have created a medium within which interactions between virtual objects and interactions with the user are made possible. By making objects within the medium responsive to each other it is possible to create emergent effects. By making the medium responsive to the user the viewer is more intimately involved in the artwork. However, at the same time this requires the artist to work with the intrinsic properties of emergence in the system to and to develop the audience relationship by means of involvement in a manner more akin to performance than the plastic arts.The use of virtual reality allows the creation of a profusion of different forms and behaviours not possible in conventional plastic media. The aesthetic of these forms can be governed in two ways, either by in built rules or by direct intervention by the artist/audience persona. The built in rules can be changed dynamically as can the objects' actions as mediated by the viewer's intervention. Underlying this is the aesthetic produced by the machinery of the computer, which can both impede and improve this process, this is the illusion of 3D provided by the Performer libraries in conjuction with the SGI box, and the many constraints implied by this. As such we are also limited by the input devices, though the mouse has now almost become synonymous with the pen, as a means by which our interaction with computer is governed. The paper describes a series of pieces which explore the boundaries of generated and evolving artworks in which kinetics and morphogenesis are integral to investigations of social interaction between virtual performers.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

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