C4 Espacio de Creación Artística Contemporánea 2012, Spain, Cordoba

C4 - Building façade with an integrated light and media installation

The C4 project with a building façade with an integrated light and media installation is far away from the concept of uniform dots of light (pixel) and structured layout.

With regards to realities:united’s BIX project Nieto Sobejano architects proposed a light- and media-façade on the C4 building surface facing the Rio Guadalquivir. Realities:united was commissioned to further develop the conception and the design for this media skin. In collaboration with Nieto Sobejano realities:united transformed the façade made from pre-cast glass fibre reinforced concrete panels into a 3-dimensional relief with indented “bowls”, which are an abstract derivate of the interior structure of the building. The indirectly lit “bowls” are arranged in patterns of varying density and respectively element size. They result into a screen with a varying image resolution similar to the retina of the human eye. The grey scale system based on fluorescent light will allow the display of moving images at a rate of 40 frames per second.




Building or project owner : Junta de Andalusia

Architecture : Nieto Sobejano Arquitectos, Madrid

Facade design : Nieto Sobejano Arquitectos in collaboration with realities:united

Light design : realities:united, Berlin

Light hardware (LED hardware) : eCue, eldoLED

Lighting control software : realities:united


Facade type and geometry (structure) : Complex 3-dimensional topography made of glass fibre reinforced concrete panels. Total surface area: approx. 1.300m²

Kind of light creation : 1.513 modular LED lights assembled into the façade’s panels.

Resolution and transmitting behaviour : 1.314 bowls (i.e."pixels") varying in size between 0,10 and 91,7 m2 creating areas of varying resolution

Luminace : Indirect lighting, use at night only.

Urban situation : Highly visible from city centre.

Participatory architecture & urban interaction