Spinning Screens

Results of experiments with the artist Laurent Bolognini. A Raspberry Pi B+ is used for generation of openGL graphics. Two amazon purchase GPS screens are fixed back-to-back on a spinning axis. RCA Analog Video was used for it's minimal need of electric contacts, thus facilitating the use of a slip ring to allow both power and video to pass a point of 360° continuous rotation. The project works by simply plugging it in. Different animations can be chosen by the use of a push button. OpenGLSL Shaders used were lifted from the beautiful and generous site glslsandbox.com The best graphics for this medium were those that lent themselves to the form factor of spinning screen on a single axis. Any centered spherical graphics seems to work best.