Archive for the ‘open source’ Category

null Pointer Exception Visit

November 14th, 2011 by Tegan

 

Maia Grotepass is the first research MA by Dissertation student at the Digital Arts Division of the Wits School of Arts. Most of our MA candidates take the coursework program. Grotepass came into the research from an Engineering Degree from Stellenbosch University and a Bachelor of Arts from UNISA in 2010. Grotepass's research paper address the difference between engineers as coders and artists as coders. The difference in conception, implementation, testing and delivery shows interesting differences in convention and rule making and breaking. Grotepass's research centers on how the two approaches can inform and assist each other towards better development practice and ultimately better art making.

The exhibition nullPointerException is made up of four interactive pieces developed in Open Frameworks. Grotepass has used a Microsoft XBox Kinect sensor for each of the four individual pieces. The pieces explore the relationship between code, developer and audience, expanding on what is seen externally and what is developed artistically internally in the code. Each piece speaks to process and engagement, the titles indicating the area of exploration:  comment_compile, interface_instead, commit_often and init_before. Full descriptions and photo's can be found on her nullPointerException site.

The exhibition opening in Stellenbosch was a massive success and the pieces run effortlessly with live interaction. I highly recommend a visit if you are in the Western Cape.

 

 

 

 

 

 

Speaking about the Unsaid

May 26th, 2010 by christo


Artist, Tegan Bristow, testing the facial recognition system in her installation, Unsaid.

Wits Digital Arts lecturer, Tegan Bristow, recently had a new interactive work selected for exhibition on the Spier Contemporary in Cape Town.  Now the largest biennale of South African art, this is the second Spier Contemporary art competition to take place since the event was launched in 2008.  This year the exhibition was staged in the Cape Town City Hall and opened on 14 March.  Tegan was one of the 101 artists who were selected from the 2,700 submissions which were made to the competition.  With the title "Unsaid"  the piece was an interactive installation that made innovative use of face-recognition software to explore the hazy line between self-expression and self-obsession.  The following question and answer session (and photographs) give a taste of the work which we hope to see on display in Johannesburg soon:

What were you trying to achieve/express with the work?
The work is titled "UnSaid". The concept behind the work is based on 
the relationship between self expression and self obsession. I find 
that in public media (predominately the internet) this is very 
unbalanced and expression is often over blown and tends to be a waste 
of space. In the same token the work speaks to the concept of the 
"artist ego" and the relationship between interesting technique and 
worthy expression as apposed to self indulgent excess. I made the work 
with the Spier Contemporary Award in mind, as it’s curatorial agenda 
is hard to understand. Of course the work is also drawn from my own 
personality and my disregard for over the top egotistical expression.

As an interactive video piece, the audience, in interacting with the 
artwork are put in a position where their own self expression and 
willingness to engage is challenged and in so doing the person 
interacting with the piece becomes more closely aware of why they 
would or should express themselves.

Please describe the work.
The piece uses face detection software and was built using Open 
Frameworks
in C++. The interactive experience is as follows:
When someone enters the installation room they will see a video 
mirrored image of themselves. The program will automatically draw a 
black square over their faces, essentially blocking out their ability 
to see their own faces but the rest of the body is still visible. On 
the side of the block are a serious of sentences, each person getting 
a different sentence; these say things like: "leave it unsaid", 
"better left unsaid", etc. In the room is a microphone on a stand, it 
is the only other element in the room and therefore entices the 
audience member to actually say something or sing etc.

If an audience member chooses to speak into the microphone the black squares are 
lifted and a golden pollen drifts up out of the crown of the heads in 
the video mirror.

This is exciting and beautiful and also starts up a 
timer that after an amount of time will aggressively attempt to 
‘erase’ the faces with graphic crosses, scratching and blurring.  The 
idea is that the audience members will feel the urge to stop and when 
they do, the black boxes with "better left unsaid" etc reappear. It is 
a closed system that challenges self expression by encouraging and 
then denying ‘a sense’ of self through an engagement with one own 
mirrored face. There by putting the audience in a position where they 
might question their own integrity and that of the "machine" artwork.

What was involved in presenting it at Spier?
Spier Contemporary gives each artist R2000.00 once the artwork has 
been accepted. As an artist (particularly of such a complex 
installation) you are required to install your own work. Because of 
that I used the R2000.00 to fly down to Cape Town to install. This did 
however mean that I needed to self fund alot of the equipment used in 
the installation. There is a team of people, though very under staffed 
who are very helpful and assist in the installation.

The exhibition is partly ‘curated’ and you are given a specific  place 
in the exhibition hall to install the work. What these decisions are 
made on however is rather unclear.

What reception has the work received?
It is hard to tell because there is no direct feedback mechanism at Spier and 
not being in Cape Town it is difficult to visit the installation 
regularly and see the response. I have however received many 
compliments from people who have seen it. The general response is that 
it is lots of fun.

What plans do you have for work after Spier?
I do intend to re-show the work. I hope to install it in the 
Substation Gallery at Wits to get a more personal measure of how it functions on a 
daily basis and also view peoples’ use of it. I think from that I will 
see if I would like to change or grow the piece, for further showing.

This was my first use of face detection software and Open Frameworks 
and it was very successful, so I hope to create more works along the 
same lines with face detection.

Anything else of significance about the experience?
I highly recommend the use of the Open Frameworks library.

How to Make the World Responsive with Arduino

May 18th, 2010 by Tegan

Physical Computing Workshop for Artists and Designers



Artist and Creative Developer Daniel Hirshmann

3 Part Workshop: 1 – 6 June 2010

Digital Arts, Wits University, Johannesburg.

 

“Physical Computing is an approach to design and making that positions the human at the centre of the interaction.  Over the course of 3 sessions, participants will learn how to gather sensor information from the real world and use it to effect change within their own projects.  We will cover introductions to communication, LED control, programming, motors, and various electronic components – while remaining aware of their creative applications in the real world.”

 

More of Hirshmann’s work here http://www.plankman.com

 

Please note:

This workshop will be extended into an open creative workgroup with local creative people and the Hacksaws Group. So if you can, book off two weekends.




This workshop is being hosted by the Hacksaws Art and Technology Support Group and the Digital Arts Division of the WSOA.

If you are interested in attending please contact me at tegan (dot) bristow (at) gmail (dot) com.

Arduino in the Print Studio

October 2nd, 2009 by Tegan




Our Arduino boards are almost done!


Last Saturday the 26th of Septmeber Dino Fizzotti (Electrical Engineering Dept.) and Jill Ross printer at David Krut Printing put there heads together and shared a wealth of information on copper etching and DIY circuit board making.  I was truely impressed by Jills printmaking experience in helping make the perfectly etched board.

All that is left to do is drill and add the components. Interestingly it is only the mirco that costs, excluding the mirco everything else comes to under R20. Dino and I are now in the processes of making extensive documentation. I’m focusing on the use of the print studio as a location and source of shared expertise for DIY circuit board making for artists and designers.

There has been a great deal of interest from Printers and artists working with paper and metal on the potentials of this collaboration. Later in October I will present the project at the University of Johannesburg’s Faculty of Art, Design and Architecture’s Practice Led Research Colloquium. I will be using the documentation of the project to elaborate on the relationship between electrical engineering and fine arts, with interactive digital art practice and its tools as the mid-point between the two.

Please look out for future posts on our Arduino and circuitry experiments.


Wax feet for the acid bath.


One of our best etches.

Printing a circuit board in a Fine Arts studio?

September 25th, 2009 by christo

This exciting research collaboration between a Digital Arts lecturer and an Electrical Engineering postgraduate  aims to prototype an affordable circuit board for African arts and design practitioners to use in the creation of interactive electronic devices. Tegan Bristow, lecturer in Interactive Media in Digital Arts and Dino Fizzotti, an MSc student in Electronics Research group of the School of Electrical and Information Engineering will be conducting an experiment together with Jill Ross from David Krut Print Workshop.  Starting on the 26 September, the team aim to establish that a low-cost circuit board can be produced using the technologies available in the Fine Arts print studio at the Wits School of Arts.

Tegan Bristow and Dino Fizzotti

The circuit board is based on the Arduino design; an open source hardware platform developed by a team of engineers, artists and designers led by the Italian Massimo Banzi in 2005. The board is designed for the easy creation of sensor based interactive installations, objects and environmental interventions. Since the board was developed for artists and designers, it means that it is easy to use and requires very little knowledge of electronics and sensors.  There are also extensive libraries of tutorials and examples available for users at no cost on the Internet.  This research aims to find ways for African arts and design practitioners to easily and cheaply access a local version of the circuit board for use in the development of design and artworks.

The process will involve using a laser printer to print the circuit image onto glossy magazine paper.  This image is then transferred onto a single-sided copper board using a hot clothes iron.  The board is then cut to size using a paper guillotine before using an etching process to inscribe the circuits onto the board.  Fizzotti estimates that it should be possible to produce a a single board for  R112.  At this cost, the local board will be significantly cheaper than the Arduino boards currently imported from Italy.

This experiment builds upon the already strong collaborations between staff and students in WSOA Digital Arts and the Wits School of Electrical and Information Engineering. Since 2005,  the division of Digital Arts and the School of Electrical and Information Engineering have successfully co-operated on a number of student and student-staff collaborative projects. These projects have ranged from the design and development of an experimental art game, to the development of software for interactive displays, to the creation of an “intelligent glove” which won the National award in 2007 for  a student electrical engineering project.