scholarly journals Persistence of Illusion: Using Spatial Illusion as a Visual Performance Mechanism

2021 ◽  
Author(s):  
◽  
Johann Nortje

<p>This thesis presents the design of a real-time visual performance system for live performances. Building on a research analysis of historical context and precedents, it is evident that software systems currently available to Live Cinema and VJ performers are often complex to navigate and counter intuitive to perform with. An alternative approach to visual performance system design is investigated in this thesis, where the spatial zone of the physical performance is used as the basis for the design, rather than purely placing the focus on software architecture. The investigation focuses on how the creation of live visual content can be achieved through the virtual and physical spatial relationships within the performance and how the performer then interacts with these relationships through bodily response and navigation. This is achieved through combining the successes of contemporary visual performances, the interaction techniques used in pre-cinema instrumentation and the use of projection mapping as a means of visually addressing the entire space of the performance. These investigations are demonstrated through a series of experiments and theoretical studies culminating in a set of design criteria, put together in a final system design accompanied by a demonstrative performance. The significance of this research is to provide the design basis for a successfully intuitive visual performance instrument, which can provide immediate results yet still require skill and experience to master. This will move the skill base of visual performance away from software navigation and more towards the physical ability to create and perform complex visual compositions in real time.</p>

2021 ◽  
Author(s):  
◽  
Johann Nortje

<p>This thesis presents the design of a real-time visual performance system for live performances. Building on a research analysis of historical context and precedents, it is evident that software systems currently available to Live Cinema and VJ performers are often complex to navigate and counter intuitive to perform with. An alternative approach to visual performance system design is investigated in this thesis, where the spatial zone of the physical performance is used as the basis for the design, rather than purely placing the focus on software architecture. The investigation focuses on how the creation of live visual content can be achieved through the virtual and physical spatial relationships within the performance and how the performer then interacts with these relationships through bodily response and navigation. This is achieved through combining the successes of contemporary visual performances, the interaction techniques used in pre-cinema instrumentation and the use of projection mapping as a means of visually addressing the entire space of the performance. These investigations are demonstrated through a series of experiments and theoretical studies culminating in a set of design criteria, put together in a final system design accompanied by a demonstrative performance. The significance of this research is to provide the design basis for a successfully intuitive visual performance instrument, which can provide immediate results yet still require skill and experience to master. This will move the skill base of visual performance away from software navigation and more towards the physical ability to create and perform complex visual compositions in real time.</p>


Author(s):  
Simon Bliudze ◽  
Panagiotis Katsaros ◽  
Saddek Bensalem ◽  
Martin Wirsing

AbstractFull a posteriori verification of the correctness of modern software systems is practically infeasible due to the sheer complexity resulting from their intrinsic concurrent nature. An alternative approach consists of ensuring correctness by construction. We discuss the Rigorous System Design (RSD) approach, which relies on a sequence of semantics-preserving transformations to obtain an implementation of the system from a high-level model while preserving all the properties established along the way. In particular, we highlight some of the key requirements for the feasibility of such an approach, namely availability of (1) methods and tools for the design of correct-by-construction high-level models and (2) definition and proof of the validity of suitable domain-specific abstractions. We summarise the results of the extended versions of seven papers selected among those presented at the $$1\mathrm {st}$$ 1 st and the $$2\mathrm {nd}$$ 2 nd  International Workshops on Methods and Tools for Rigorous System Design (MeTRiD 2018–2019), indicating how they contribute to the advancement of the RSD approach.


Author(s):  
Gabriel de Almeida Souza ◽  
Larissa Barbosa ◽  
Glênio Ramalho ◽  
Alexandre Zuquete Guarato

2021 ◽  
pp. 1-25
Author(s):  
A. Filippone ◽  
B. Parkes ◽  
N. Bojdo ◽  
T. Kelly

ABSTRACT Real-time flight data from the Automatic Dependent Surveillance–Broadcast (ADS-B) has been integrated, through a data interface, with a flight performance computer program to predict aviation emissions at altitude. The ADS-B, along with data from Mode-S, are then used to ‘fly’ selected long-range aircraft models (Airbus A380-841, A330-343 and A350-900) and one turboprop (ATR72). Over 2,500 flight trajectories have been processed to demonstrate the integration between databases and software systems. Emissions are calculated for altitudes greater than 3,000 feet (609m) and exclude landing and take-off cycles. This proof of concept fills a gap in the aviation emissions inventories, since it uses real-time flights and produces estimates at a very granular level. It can be used to analyse emissions of gases such as carbon dioxide ( $\mathrm{CO}_2$ ), carbon monoxide (CO), nitrogen oxides ( $\mathrm{NO}_x$ ) and water vapour on a specific route (city pair), for a specific aircraft, for an entire fleet, or on a seasonal basis. It is shown how $\mathrm{NO}_x$ and water vapour emissions concentrate around tropospheric altitudes only for long-range flights, and that the cruise range is the biggest discriminator in the absolute value of these and other exhaust emissions.


2020 ◽  
Author(s):  
Elizabeth L. Lown ◽  
Keith C. Radley ◽  
Evan H. Dart ◽  
Brad A. Dufrene ◽  
Daniel H. Tingstrom ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document