In my diploma project, the CMY Pavilion, I dealt with subtractive colour mixing. It consists of a system of triangular modules that span a linear surface with arches. These arcs are connected with pressure rods and tension ropes, through which strips of coloured foil are woven. The arch modules, which form a three-layer system, can be moved axially. The inner layer is interwoven with yellow stripes, the middle with magenta, while the outer layer is cyan. This way, the colours red green and blue can be created by superimposing the colours cyan, magenta and yellow. The pavilion is integrated into the concept of an existing school as an extension and is intended to facilitate a variety of uses and activities. Each of the six possible colours is assigned attributes that support the respective activities. In this way, the modules can be moved for different activities so that the desired mood and atmosphere can be created for the respective activity.