Signal festival is the largest showcase of light art projecting on buildings in the Czech Republic. The task was to create a campaign to attract new potential visitors and draw the attention of visitors who know the event from previous years. I came up with an idea to show light coming through different materials to create a countdown of the days, which remained till its beginning. I chose materials that are similar to the building by their structure. I got some interesting photos from this experiment and later built the whole campaign on them.