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	cf2005_1_52_176
id	cf2005_1_52_176
authors	GU Ning and MAHER Mary Lou
year	2005
title	Dynamic Designs of 3D Virtual Worlds Using Generative Design Agents
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. 239-248
summary	3D virtual worlds are networked environments designed using the metaphor of architecture. Recent developments in 3D virtual worlds focus on interactivity, flexibility and adaptability. Rather than creating virtual environments in which the objects have intelligent behaviours, our research takes a different approach to develop an agent model that is associated with an individual person in the 3D virtual world as a personal design agent. This paper presents a Generative Design Agent (GDA), a kind of rational agent capable of representing a person in a virtual world and designing, implementing and demolishing 3D virtual places based on the occupants' current needs in the virtual world. The core of a GDA's design component is a generative design grammar that is able to capture a style of 3D virtual worlds. 3D virtual worlds designed using the GDA model is another kind of architecture for the "moment".
keywords	virtual environments, generative design, interactive design, shape grammars
series	CAAD Futures
email
last changed	2006/11/07 07:27

_id	2005_589
id	2005_589
authors	Reffat, Rabee M. and Gero, John S.
year	2005
title	A Virtual Mining Environment for Providing Dynamic Decision Support for Building Maintenance
doi	https://doi.org/10.52842/conf.ecaade.2005.589
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 589-596
summary	A virtual mining environment aims to provide dynamic decision support to improve building life-cycle modelling and management. This paper presents the system architecture of a virtual mining environment, its interfaces and a user scenario. This virtual mining environment integrates data mining with agent-based technology, database management systems, object-based CAD systems, and 3D virtual environments. A system prototype has been developed and implemented to support the automated feed back for building life cycle modelling, planning and decision-making.
keywords	Data Mining; Virtual Environment; Dynamic Decision Support; Building Maintenance
series	eCAADe
email
last changed	2022/06/07 08:00

_id	cf2005_1_84_44
id	cf2005_1_84_44
authors	ROSENMAN M.A., SMITH G., DING L., MARCHANT D. and MAHER M.L.
year	2005
title	Multidisciplinary Design in Virtual Worlds
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. 433-442
summary	Large design projects, such as those in the AEC domain, involve collaboration among a number of design disciplines, often in separate locations. With the increase in CAD usage in design offices, there has been an increase in the interest in collaboration using the electronic medium, both synchronously and asynchronously. The use of a single shared database representing a single model of a building has been widely put forward but this paper argues that this does not take into account the different representations required by each discipline. This paper puts forward an environment which provides real-time multi-user collaboration in a 3D virtual world for designers in different locations. Agent technology is used to manage the different views, creation and modifications of objects in the 3D virtual world and the necessary relationships with the database(s) belonging to each discipline.
keywords	collaboration, multiviews, virtual worlds, agents
series	CAAD Futures
email
last changed	2006/11/07 07:27

_id	cf2005_1_31_28
id	cf2005_1_31_28
authors	PENG Chengzhi
year	2005
title	Townscaping: Development of Dynamic Virtual City Augmented 3D Sketch Design Tools
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. 105-114
summary	The paper presents the development of an experimental Web-based design environment called Townscaping to be used at the conceptual stage of architectural and urban design. Inspired by Gordon Cullen's seminal work on Townscape (1960's-1970's), the idea of Townscaping is to explore how 3D digital sketch design tools could be developed to operate in connection with a dynamic virtual city system under a user's direct control. A prototype of Townscaping has been designed and implemented on the basis of an existing dynamic virtual city system. In Townscaping, a set of tools is provided for users to create and edit 3D graphic elements to be positioned directly onto the user-specified virtual city models. One of the key features of Townscaping is to enable sketching while navigation: designers can perform sketch design and gain immediate visual feedback while navigating the 3D virtual city models to any viewpoint at any moment. The current study suggests that it is feasible for virtual city models to serve as interactive urban contexts for 3D sketch design. Townscaping is considered primarily a research platform with which we are interested in investigating if designers' engaging in 3D space conceptions may be enhanced through interacting and sketching with virtual townscapes.
keywords	virtual city, 3D sketch design, interactive urban visualisation, web-based design
series	CAAD Futures
email
last changed	2006/11/07 07:27

_id	55c9
id	55c9
authors	Yehuda Kalay, Gokce Kinayoglu, Seung Wook Kim
year	2005
title	Spatio-Temporally Navigable Representation and Communication of Urban Cultural Heritage
source	Proceedings: VSMM 2005 International Conference on Virtual Systems and Multimedia
summary	Virtual environments are effective tools for the representation and communication of cultural heritage. We suggest that an interactive, immersive and dynamic navigation of the virtual representation of the urban environment will not only convey the essence of the culture and the changes it underwent in a more comprehensible manner, but will engender a 'sense of place'—genius loci— in the visitors. This cognitive mode will help them learn about much more than the geometry and materiality of the city: it will make them 'feel' part of the event itself. By presenting a socially shareable experience, we aim to introduce the medium the character of a genuine place, and make it a social venue for active exploration, discussion and interaction. Virtual reality surpasses both traditional media and 3D-models and offers what they cannot. The affordances of the medium, however, also have the potential to destroy the sense of place it strives to engender. It can do so by allowing a kind of ‘time travel,’ to different periods in the history of the site. This ability locates visitors not only spatially, but also temporally. Everyday experience helps us understand the meaning of spatial boundedness, but does not prepare us to deal with temporal boundedness: sensing the presence of fellow visitors at different times. In this paper we describe our experiences in producing spatio-temporally navigable virtual reconstructions of two distinct culturally significant historic sites: the neolithic village of Çatalhöyük, and the medieval city of Cairo. We demonstrate the use of spatio-temporal navigation through a dynamic, chronologically layered model that can be browsed by multiple users at the same time. Such a dynamic system for representing chronological architectural events requires the extension of our conception of place into the temporal domain. We introduce a new concept, temporal field of view (t-FOV) and discuss how it can aid us in resolving an intrinsic challenge introduced by the representation of the temporal dimension in virtual environments.
keywords	Multi-User Virtual Environments (MUVE), Cairo, cultural heritage, temporal representation, timeline
series	other
type	normal paper
email
last changed	2008/10/03 21:34

_id	acadia05_170
id	acadia05_170
authors	Barker, Daniel and Dong, Andy
year	2005
title	A Representation Language for a Prototype CAD Tool for Intelligent Rooms
doi	https://doi.org/10.52842/conf.acadia.2005.170
source	Smart Architecture: Integration of Digital and Building Technologies [Proceedings of the 2005 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 0-9772832-0-8] Savannah (Georgia) 13-16 October 2005, pp. 170-183
summary	Intelligent rooms are a type of intelligent environment which enhance ordinary activities within the confines of a room by responding to human interaction using pervasive and ubiquitous computing. In the design of intelligent rooms, the specification of how the intelligent room enacts intelligent behavior through computational means is as integral as the geometric description. The self-aware and context-aware capabilities of intelligent rooms extend the requirements for computer-aided design tools beyond 3D modeling of objects. This article presents a Hardware as Agents Description Language for Intelligent Rooms (HADLIR) to model hardware in an intelligent room as “hardware agents” having sensor and/or effector modalities with rules and goals. End-users describe intelligent room hardware as agents based on the HADLIR representation and write agent rules and goals in Jess for each hardware component. This HADLIR agent description and the requisite software sensors/effectors constitute “hardware agents” which are instantiated into a multi-agent society software environment. The society is then bridged to either a virtual environment to prototype the intelligent room or to microelectronic controllers to implement a physical intelligent room. The integration illustrates how the HADLIR representation assists in the design, simulation and implementation of an intelligent room and provides a foundation technology for CAD tools for the creation of intelligent rooms.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	cf2005_1_54_91
id	cf2005_1_54_91
authors	CANEPARO Luca, MASALA Elena and ROBIGLIO Matteo
year	2005
title	Dynamic Generative Modelling System for Urban and Regional 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. 259-268
summary	This paper introduces a dynamic generative modelling system for urban and regional design. Through dynamic modelling the system evolves in time according to the interactions of the planners, decision-makers and citizens. On the basis of several synchronous and/or asynchronous user interactions, models are dynamically generated at run time. The models are built by defining the data (datasets) and the actions to perform on that data (tasks). The system reads and correlates data at urban and regional scale from various authorities to generate dynamic datasets. Tasks are especially powerful when they integrate generative procedures in a hierarchical structure. This allows us to model urban and regional dynamics through the interaction of tasks at micro- and macro-scale. Tasks can also implement either Cellular Automata or software agents. We examine the system application to a case project: the simulation of micro- and macro-dynamics in an Alpine valley, with specific challenges to fit competitive and sustainable growth in a landscape quality perspective. The simulation in spatial and temporal dimensions of regional data provided us with the elements to study the territorial evolution over the next twenty years. Four strategies gave as many scenarios highlighting the results of specific policies.
keywords	large-scale modelling, participatory design, GIS, software agent, datascape
series	CAAD Futures
email
last changed	2006/11/07 07:27

_id	acadia06_510
id	acadia06_510
authors	Johnson, Jason
year	2006
title	Complexity as a Creative Force in Design Variegation, Heterogeneity, Diversity
doi	https://doi.org/10.52842/conf.acadia.2006.510
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 510-517
summary	This paper describes an experimental project that attempts to use complexity as a creative and vital force within the design process. The project seeks to release architecture from its conventional role as a static urban backdrop and to transform it into a vital, dynamic, and active participant within cities. The project, entitled “Energy Farm”, was instigated by the 2005 International Open Design Competition for a “Performing Arts Island” located within the Han River in Seoul, Korea. Through the exploration of the site and program elements as an interacting matrix of fields, forces, and flows (energy, program, water flow, infrastructure, etc.), our proposal emerged as a variegated landscape marked by its capacities to produce its own energy, interweave heterogeneous threads of structure and program, and instigate a diverse set of scenarios in which physical and virtual realms coalesce. Architecture, in its unique capacity to bridge these realms, can release the rich computation potential of complexity into the physical realm. Within this scenario, architecture becomes a creative and vital agent for productive change with profound social, political, and ecological implications.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	cf2005_1_22_147
id	cf2005_1_22_147
authors	CHAN Chiu-Shui, DANG Anrong and TONG Ziyu
year	2005
title	A 3D Model of the Inner City of Beijing
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. 63-72
summary	This study has two major concentrations: 1) exploring methods of creating a digital city model, and 2) applying the model to study urban spatial structure, an issue of particular interest and importance to urban planners. Based on existing studies that primarily address two-dimensional (2D) urban structure, this paper focuses on the three-dimensional (3D) structure relating to the 3D urban form. Given their greater clarity and possibilities for quantitative analysis, both 3D digital urban models and GIS spatial overlay analysis methods hold tremendous potential for analysing and predicting future urban form. In this project, the Xidan Business District in Beijing's Inner City was the area selected to implement the digital-city application. Under the hypothesis that the existing urban spatial structure is determined by the city's urban planning scheme and current urban marketing forces, it is found that actual urban development does not follow the planning restrictions on zoning and building height regulations. Some contradictions and conflicts, such as building location and height, appeared in the studied district. The specific reasons for the discrepancies need to be further studied.
keywords	3D city modeling, GIS, remote sensing, virtual environments
series	CAAD Futures
email
last changed	2006/11/07 07:27

_id	ijac20053104
id	ijac20053104
authors	Fischer, Thomas
year	2005
title	Teaching Programming for and with Microcontroller-Enhanced Physical Models
source	International Journal of Architectural Computing vol. 3 - no. 1, 57-74
summary	As processes of use, interaction and transformation take center stage in various fields of design, electronic sensors, controllers, displays and actuators can significantly enhance the value of physical models. These technologies allow the development of novel computer interfaces for new kinds of interaction with virtual models, and in the future they can be expected to play an important role in the development of new types of active building components and materials for automated construction and dynamic runtime adaptations of inhabitable environments. However, embedding programmed logic into physical objects involves skills outside the traditional domains of expertise of designers and model makers and confronts them with a steep learning curve. The wide variety of alternative technologies and development tools available in this area has a particularly disorienting effect on novices. However, some early experiences suggest that mastery of this learning curve is easily within reach, given some basic introduction, guidance and support. To assist design students in acquiring a basic level of programming knowledge, better educational programming tools are still required. It is the intent of this paper to provide designers and educators with a starting point for explorations into this area as well as to report on the development of an educational approach to electronics programming called haptic programming.
series	journal
email
more	http://www.multi-science.co.uk/ijac.htm
last changed	2007/03/04 07:08

_id	sigradi2205_725
id	sigradi2205_725
authors	Haque, Mohammed E.
year	2005
title	DESKTOP VIRTUAL ENVIRONMENTS IN CONSTRUCTION EDUCATION
source	SIGraDi 2005 - [Proceedings of the 9th Iberoamerican Congress of Digital Graphics] Lima - Peru 21-24 november 2005, vol. 2, pp. 725-730
summary	In construction science, classroom oriented education remains the preferred mode of teaching. Alternative methods such as field trips, use of 3D drawings, and physical models often supplement and enhance the understanding of students. In addition to the risks involved with field trips, designated sites may not be at the particular stage of construction during the academic semester, or the construction sequence may not be fast enough to demonstrate the multiple facets during field visits. Considerable pedagogical advantages can be achieved by the integration of IT and visualization tools in teaching construction engineering/technology. The objective of this research was to develop a desktop virtual environment using 3D, animations, virtual reality and walkthrough of construction processes of steel, concrete, and lightwood structures. These visualization techniques can be valuable aids not only in teaching in the classroom but also an effective self-directed tool for open learning via the web.
series	SIGRADI
type	normal paper
email
last changed	2016/03/10 09:53

_id	1ae1
id	1ae1
authors	Horne M, Roupé M, Johansson M
year	2005
title	Building Information Modelling for Visualisation in AEC Education
source	CONVR2005 5th Conference of Construction Applications of Virtual Reality, ADETTI/ISCTE, Durham, UK, 12-13 September 2005
summary	This paper outlines the process used to introduce building information modelling into the academic curriculum of built environment students and reflects on the techniques used to ensure appropriate use of parametric tools for the purposes of visualisation. The integration of building information modelling into other curriculum sub-jects is outlined. The study introduces the collaboration between Northumbria University and Chalmers Lind-holmen Visualiseringsstudio and considers the future potential of building information modelling and whether it may contribute to reduced time and cost of creating three dimensional models suitable for Virtual Reality worlds.
keywords	Building Information Modelling, Visualisation, Virtual Reality, Built Environment Curriculum, MrViz.
series	other
type	normal paper
email
last changed	2006/06/08 22:06

_id	2005_399
id	2005_399
authors	Johansson, Mikael and Roupé, Mattias
year	2005
title	From CAD to VR – Implementations for Urban Planning and Building Design
doi	https://doi.org/10.52842/conf.ecaade.2005.399
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 399-405
summary	At present time, three-dimensional objects are often represented with 2D-data in urban planning and building design. In order to get all the involved parties to fully understand a certain project, this may not be enough. More and more projects therefore take use of the Virtual Reality (VR) technique as a complement to traditional 2D drawings and sketches. All the involved parties can then share a common frame of reference for all discussions regarding a certain project. Unfortunately, the technique is not yet adapted to fit the current building design process. In this paper, we present a solution for semi-automatic generation of a VR-model based on 3D CAD information and aerial photos obtained from the City Planning Authorities in Sweden. The data is imported to support real-time editing of terrain, roads and buildings. We also present a framework for importing 3D-models created in Autodesk Revit which enables a seamless integration of modern 3D CAD and VR-models. The features are implemented in a software developed at Chalmers Visualization studio (Gothenburg, Sweden) and technical details about terrain handling and speed-up techniques will be given.
keywords	Virtual Reality; 3D City modeling; Urban planning; Terrain; Visualization
series	eCAADe
email
last changed	2022/06/07 07:52

_id	2005_091
id	2005_091
authors	Kirschner, Ursula and Kirschner, Nauka
year	2005
title	E-learning in Creative Planning Processes
doi	https://doi.org/10.52842/conf.ecaade.2005.091
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 91-97
summary	This conference paper examines experimental design exercises on a simulated model in relation to designing on a physical model. In the initial design phases, the process of designing on both a haptic and digital model is analysed with regard to the didactic objectives. In this context, only form-related aesthetic aspects are discussed. The starting point is the didactic necessity of imparting to students the process of designing on spatial models. Reduced to form determination, the question examined is for which aspects of design theory the potentials of real and virtual models, as well as of the interaction of both types, can be exploited.
keywords	Design methods; Digital and Physical Models; 3D-Digizer; Design Education
series	eCAADe
email
last changed	2022/06/07 07:52

_id	caadria2005_a_7c_f
id	caadria2005_a_7c_f
authors	M.N.H. Siddique, Qazi A. Mowla, Mohammad A. Al Masum
year	2005
title	VIRTUALITY IN ARCHITECTURE: A DESIGN METAPHOR
doi	https://doi.org/10.52842/conf.caadria.2005.342
source	CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 1, pp. 342-350
summary	Traditionally, architecture in its design process employs physical matter, requires physical presence and relies on real world environment using conventional methods of 2D depictions such as paper and pen or 3D representations such as physical models and communicates design ideas in verbal or text-based form. The conventional design process, for example an interior design, a residential house, a commercial complex or even urban design projects, follows the same hierarchy of activities. Efforts are made to the satisfaction of both parties to give the ideas of a physical shape through sketches, drafts and models which may take weeks even months. Finally the project gets its final shape in a working drawing, 3D visualisation or model making. This process is time consuming and somewhat redundant. In recent years technology has offered architects a new tool - the virtual environment. Architects use virtual environment increasingly as device of communication and presentation of design intensions. Virtual environment enables users to interact in real-time with design but unfortunately have not been used widely in the process of design development. The aim of this paper is to investigates the relationship between present design process and the emerging technology of virtual reality, establish a relationship between the two and its influence on architecture to form a new translated design process and communication, an interface between architect and client.
series	CAADRIA
type	normal paper
email
last changed	2022/06/07 07:59

_id	sigradi2005_108
id	sigradi2005_108
authors	Martens, Bob; Martijn Stellingwerff
year	2005
title	Creating Physical Models Using Virtual Reconstructions: Mixed CAM-techniques for a Viennese Synagogue Scale-model
source	SIGraDi 2005 - [Proceedings of the 9th Iberoamerican Congress of Digital Graphics] Lima - Peru 21-24 november 2005, vol. 1, pp. 108-113
summary	In the framework of a preceding SiGraDi-conference the virtual reconstruction work of Viennese Synagogues was elaborated. The focus of this continued research project is laid on historic/reconstructive modeling, which has specific requirements towards the modeling and subsequent production of scale models. In this paper, the prerequisites of 3D-printing and lasercutting technology for model making will be presented. This includes aspects of scale and handling of individual building elements regarding the possibilities and limitations for each specific CAM-technique. Compared to the rendering models, the modeling procedures for scale-model fabrication had to be adjusted. For example, certain dimensions for details and the structural strength of 3D-printed parts have to be taken into account. Due to economical and constructional reasons as well the printing time involved, a scale-model should be created by means of mixed CAM-techniques; building components have to be split up and assigned accordingly.
keywords	Virtual heritage, Rapid Prototyping, 3D-printing (3DP), Lasercutting
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	caadria2005_b_4b_d
id	caadria2005_b_4b_d
authors	Martin Tamke
year	2005
title	Baking Light: Global Illumination in VR Environments as architectural design tool
doi	https://doi.org/10.52842/conf.caadria.2005.214
source	CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 2, pp. 214-228
summary	As proven in the past, immersive Virtual Environments can be helpful in the process of architectural design (Achten et al. 1999). But still years later, these systems are not common in the architectural design process, neither in architectural education nor in professional work. The reasons might be the high price of e.g. CAVEs, the lack of intuitive navigation and design tools in those environments, the absence of useful and easy to handle design workflows, and the quality constraints of real-time display of 3D models. A great potential for VR in the architectural workflow is the review of design decisions: Display quality, comfortable navigation and realistic illumination are crucial ingredients here. Light is one of the principal elements in architectural design, so design reviews must enable the architect to judge the quality of his design in this respect. Realistic light simulations, e.g. via radiosity algorithms, are no longer the domain of high-end graphic workstations. Today's off-the-shelf hardware and 3D-software provide the architect with high-quality tools to simulate physically correct light distributions. But the quality and impression of light is hard to judge from looking at still renderings. In collaboration with the Institute of Computer Graphics at our university we have established a series of regular design reviews in their immersive virtual environment. This paper describes the workflow that has emerged from this collaboration, the tools that were developed and used, and our practical experiences with global-light-simulations. We share results which we think are helpful to others, and we highlight areas where further research is necessary.
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	2005_349
id	2005_349
authors	Rafi, Ahmad, Izani, Mohd and Tinauli Musstanser
year	2005
title	High Dynamic Range Image (HDRI) Rendering
doi	https://doi.org/10.52842/conf.ecaade.2005.349
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 349-356
summary	This paper suggests a method known as High Dynamic Range Image (HDRI) to pre-visualise architectural elements in three-dimensional (3D) environment used by Computer Graphic Imaging (CGI) film-makers to integrate 3D models and characters into live action background (special effect). This Intensification Research Priority Area (IRPA) grant project was developed to suggest ways to achieve effective rendering solution and composition of the final output. It will focus on experimental modelling of local cultural elements that provides solutions for radiosity-type effects and dirt shadings. A set of data from an established site (i.e. environment) was captured and represented in High Dynamic Range (HDR) file. This data is integrated with architectural elements (e.g. 3D objects) and then pre-rendered to get the 3D visualisation of the actual environment. Several different exposures were also captured and tested to establish the correct rendering and lighting condition. This earlier result shows that HDRI method provides accurate visualisation and drastically reduces the rendering time without compromising the data (images) with accurate lighting. This paper will demonstrate the process of HDRI, compare the visual impact with ‘radiosity’ technique and other related rendering solutions and present the results, which are useful for architectural animation, simulation and other modelling developments.
keywords	HDRI, Pre-Visualisation, Modelling, Rendering
series	eCAADe
email
last changed	2022/06/07 07:59

_id	2006_566
id	2006_566
authors	Rafi, Ahmad; Mohamad Izani Zainal Abidin; Avijit Paul and Aishah Abdul Razak
year	2006
title	Simulation of architectural lighting in a virtual environment - A case study on real and fake High Dynamic Range Images (HDRI)
doi	https://doi.org/10.52842/conf.ecaade.2006.566
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 566-572
summary	The early findings of this research were presented in eCAADe 2005 International Conference, Lisbon primarily to highlight the concept of High Dynamic Range Images (HDRI) when representing architectural spaces in the form of still images. An experiment had been carried out to compare the results between HDRI rendering and ‘conventional’ lighting simulation algorithms namely ray tracing and radiosity. The results were based on static and using the same exposure factors, when capturing HDRI. This project, funded by Intensification Research Priority Area (IRPA) grant continues to present and report HDRI results in a simulation environment. In this paper, we first briefly explain on the concept of real and fake HDRI. Then a comparison experiment is conducted to compare these two methods and discuss the impact and effectiveness of the illumination computation in architectural simulation environment. In order to carry out the experiment, a few models of the architectural scenes were developed. These models were then textured with real photos and manipulated with ‘shaders’, and further rendered using fake and real HDRI techniques. As for the fake HDRI, two methods were developed. The first was using an image as the ambient map and different exposures were created by increasing the value of Hue, V of HSV and saturation. The second involved a series of digital photos with the selection of the brightest and darkest area using Adobe Photoshop to establish the scale of luminosity. A few camera movements were triggered and position for ‘real-time’ rendering simulation. The result of the experiment has shown a significant improvement on the rendering time and quality of the rendering. Finally this paper suggests the selection criteria for choosing real and fake HDRI, and how each technique can be best utilized for architectural representations in a simulation environment.
keywords	HDRI; simulation; Real HDRI;Fake HDRI; illumination computation
series	eCAADe
email
last changed	2022/06/07 07:59

_id	5b89
id	5b89
authors	Sevaldson, Birger
year	2005
title	Developing Digital Design Techniques Investigations on Creative Design Computing
source	Oslo School of Architecture and Design, PHD-Thesis
summary	1.1. The themes in this theses 16 1.1.1. Mind the mind gap 16 1.1.2. Prologue: The World Center for Human Concerns 17 1.1.3. Creative computer use 26 1.1.4. Design strategies and techniques 31 1.2. Overview 33 1.2.1. Main issues 34 1.2.2. The material 36 1.2.3. The framework of this thesis 37 2. CURRENT STATE AND BACKGROUND 39 2.1. New tools, old thoughts. 39 2.1.1. A misuse strategy 44 2.1.2. Emergence in design 47 2.1.3. Programming and design 50 2.1.4. Artificial intelligence 53 2.1.5. Human intelligence and artificial representations 53 2.2. Electronic dreams 54 2.2.1. The dream of intuitive software 55 2.2.2. The dream of the designing machine 60 2.2.3. The dream of self-emerging architecture; genetic algorithms in design 61 2.2.4. A cultural lag 62 2.3. Ideas and ideology 64 2.3.1. A personal perspective on the theories of the 1990s 65 2.3.2. "The suffering of diagrams" 68 2.3.3. Architectural theory and design methodology 69 2.4. Ideas on creativity 72 2.4.1. What is creativity? 73 2.4.2. Creativity, a cultural phenomenon. 75 2.4.3. Creativity in the information age 79 2.4.4. Creativity-enhancing techniques 81 2.4.5. Crucial fiicro-cultures 82 2.4.6. A proposal for a practitioner approach to creativity 83 2.5. Summary and conclusion of part 2 84 3. NEW DESIGN TECHNIQUES 86 3.1. Introduction 86 3.2. New technology - new strategy 87 3.3. Thinking through design practice: the inspirational playful design approach 88 3.4. A Corner stone: emergence 89 3.4.1. The source material 94 3.5. Recoding, translation and interpretation 95 A case: Tidsrom 97 3.6. Reconfiguring schemata 109 3.7. Rules and games 113 3.8. Virtuality and virtual models 118 3.8.1. What is "The Virtual"? 118 3.8.2. Virtual reality 119 Investigating "the virtual" 120 3.8.3. Analysing the virtual 126 3.9. Visual thinking (diagrams and visual thinking) 130 3.9.1. Visual Thinking and Abstraction. 130 3.9.2. A heuristic process 132 3.9.3. Visual thinking, skills and tacit knowledge 132 3.9.4. Media for visual thinking 133 3.10. Diagrammatic thinking 138 3.10.1. Descriptive diagrams 142 3.10.2. Generative diagrams 144 3.10.3. Versioning 149 3.10.4. Finding 153 3.10.5. Translation and interpretation 158 3.10.6. From generative diagram to program 168 3.10.7. Dynamic generative diagrams 171 3.11. The question of selection 175 3.12. Summary and conclusion of part 3 178 4. WAYS OF WORKING: FROM DESIGN PRACTICE TOWARDS THEORY AND DIGITAL DESIGN METHODS 179 4.1. Introduction 179 4.1.1. Practice-based research 180 4.1.2. Visual material is central. 180 4.1.3. Two investigation paths 180 4.1.4. Achievements 180 4.2. Methods 181 4.2.1. Explorative and generative research 182 4.2.2. A first-person approach 183 4.2.3. Analysis 184 4.2.4. The Material 185 4.3. Systematising creative computer use. Ways of working; techniques in creative computer use. 186 4.3.1. Categorization 186 4.3.2. Mapping the field of design computing. 187 4.3.3. Generic techniques 190 4.3.4. Specific techniques 192 4.3.5. Table of techniques 193 4.3.6. Examples of techniques 200 4.3.7. Traces of technology. 213 4.4. The further use of the generated material 219 4.4.1. Realisation strategies 221 4.4.2. Templates and scaffolds 223 4.5. Summary of Part 4 240 PART 5. WAYS OF THINKING: INTENTIONS IN CREATIVE COMPUTER USE. 241 5.1. Intentions 241 5.1.1. Categorising intentions 242 5.2. Intention themes 243 5.2.1. Cases and samples from Group one: Formal, phenomenal, spatial and geometrical themes 244 5.2.2. Intentions of response to the complexity of urban systems 297 5.3. The Hybrid Process 317 5.3.1. Hybridization strategies 319 5.3.2. The hybrid process and its elements. 328 6. SUMMARY AND CONCLUSIONS 344 6.1. Principles, concepts and methods for creative design computing 344 6.2. A new type of creativity? 348 6.3. A practice as the field for an investigation 349 6.4. Suggestions for further studies 349
series	thesis:PhD
type	normal paper
last changed	2007/04/08 16:11

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