Jon McCormack

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Implicit surfaces obtained by convolution of multi-dimensional primitives with some potential function, are a generalisation of popular implicit surface models: blobs, metaballs and soft objects. These models di er in their choice of potential functions but agree upon the use of underlying modelling primitives, namely, points. In this paper a method is(More)
L-Systems have traditionally been used as a popular method for the modelling of spacefilling curves, biological systems and morphogenesis. In this paper, we adapt string rewriting grammars based on L-Systems into a system for music composition. Representation of pitch, duration and timbre are encoded as grammar symbols, upon which a series of re-writing(More)
This chapter examines the possibilities and challenges that lie ahead for evolutionary music and art. Evolutionary computing methods have enabled new modes of creative expression in the art made by humans. One day, it may be possible for computers to make art autonomously. The idea of machines making art leads to the question: what do we mean by 'making(More)
This paper describes an Artificial Life system for music composition. An evolving ecology of sonic entities populate a virtual world and compete for limited resources. Part of their genetic representation permits the creatures to make and listen to sounds. Complex musical and sonic relationships can develop as the creatures use sound to aid in their(More)
This paper describes a novel type of artistic Artificial Life environment. Evolving agents, who have the ability to make and listen to sound, populate a synthetic world. An evolvable, rule-based system drives agent behaviour. Agents compete for limited resources in a virtual environment that is influenced by the presence and movement of the artwork’s(More)
Evolution of Lindenmayer Systems (L-Systems) provides a powerful method for creating complex computer graphics and animations. This paper describes an interactive modelling system for computer graphics in which the user is able to “evolve” grammatical rules and surface equations. Starting from any initial L-System grammar the evolution proceeds via repeated(More)
Applying evolutionary methods to the generation of music and art is a relatively new field of enquiry. While there have been some important developments, it might be argued that to date, successful results in this domain have been limited. Much of the present research can be characterized as finding adhoc methods that can produce subjectively interesting(More)
BACKGROUND Propofol is a versatile anesthetic agent used in pediatric practice to facilitate investigational and interventional procedures. Propofol can cause significant respiratory depression, the management of which may require advanced airway management skills. This investigation aimed to increase the safety of propofol administration by developing a(More)