This is my contribution to the realtime 4 kilobytes visuals (usually known as "4k intro") competition for Inspire 2008 (held in Spain). It is a set of spheres with radious controlled by the Fourier Transform (without the "fast") of the music. it contains some realtime ambient occlusion and depth of field. It's done in C, using shaders (GLSL). Once again, it all fits in a 4 kilobytes executable (music, animation, rendering engine and effects). Music composition is made by Jose Manuel Perez Paredes (aka JosSs). The idea was to make something with lots of energy, and to see how well the SSAO does work with structures of spheres. I was very inspired by the experiments of Simon Geilfus on driving cubes with the sound spectrum.