The simulation of dynamic, coloured light is extremely complex as seen when moving through a space. In a film, the individual images can differ both in light and perspective. To ensure maximum flexibility in the design, the luminaire groups were calculated separately without setting the final light colour. The video processing program was then used to put together the films of the different luminaire groups and to combine the dynamic colour settings. In this way, the colours could be adjusted without requiring new calculations for the film.