Note:

Unlike with many other stand-alone shader programs, Komplex handles these shaders a little differently. In Komplex, Shaders are single-pass Fragment Shaders that are either intended to perform simple manipulation or generative effects. They are not meant to be used by themselves, but rather intended to be used as building blocks for a Komplex Pack. In a future update, they will likely be re-labelled as “Filters”. If you were looking for more advanced features such as framebuffers, multipass etc, try the Pack Builder