Technology changes not only our way of living but also our mode of thinking. With the help of computers, art presentations can become more interactive. Media art is the term used to define interactive computer-based art pieces. The genre has been growing since the early 1990s, following the bloom of computer technology. Playing with Desiring Machines is the latest exhibition presented by Videotage, which is showcasing two media art pieces titled The Nudemen Garden and Disorientation by local artists. The exhibition aims to explore the relationship between men and machines. The artists use web cameras, custom sensors, video tracking systems and software programmes to develop a new perspective. The Nudemen Garden is a joint project by local artists Francis Lam and Henry Chu Lik-hang. A large projection screen will show computer-generated images of naked men. Visitors will be able to see an image of themselves projected onto the screen via a web camera and projector. The naked men will then be seen falling onto the viewer's projected image. 'The internet world is occupied by an overwhelming amount of pornography,' said Chu, an interactive web designer. 'We're bombarded with countless spam e-mails featuring pornographic content every day. We want to reflect this phenomenon in a witty way.' He added: 'Media art challenges the traditional method of exhibition. It's more interactive. As an interactive artist I don't just create a set-up, but an experience for audiences to take part in.' Disorientation is an interactive media work by Hung Keung, a lecturer at the School of Design at Hong Kong Polytechnic University. It challenges the two-dimensional interface of video and television which 'only shows a single moment in one interface', Hung said. 'Our projects experiment with filming and projecting real-life moving images from various viewpoints simultaneously', which results in the altered appearance of the image. Visitors can control the movement of the projected images using a joystick. In conjunction with the exhibition, a seminar titled How to be a (Hong Kong) media artist? - hosted by artists and exhibition curator Fion Ng Yin-chun - will be held on Saturday at 5pm in Videotage. Discussion topics include the development of local media art and basic training for media artists. According to Ng, most artists who try to explore media art have a problem with using the complex computer programmes unless they can find a programmer or engineer as a partner. 'Unlike the Western art scene, not many scientists or engineers here have an interest in creating art,' Ng said. 'You can see the influence of our educational system, which makes us choose either literature or science in secondary school while ignoring the fact that the computer is an important tool for art creation too.' Playing with Desiring Machines runs until Sunday at Videotage (Block 13, 63 Ma Tau Kok Rd, To Kwa Wan). Admission is free. For more information contact 2573 1869 or visit www.videotage.org.hk .