Central Presentations Ltd (CPL) supported Lumacoustics by providing the hardware to create "the world's largest graffiti wall". CPL supplied technical support as well as Barco FLMHD20 projectors, Barco DVI matrix switching equipment and fibre optic links to ensure top quality signal paths around the outdoor site on the Harbourside in Bristol.
The project involved firing two projectors side by side to cover a 26m x 10m canvas across the Lloyd's headquarters building. The system primarily was driven by Lumacoustics' custom software YrWall which allows artists to create graffiti digitally using a modified spray can on a three metre wide screen, CPL also took the opportunity to successfully experiment with warping video imagery around the architectural features of the building using their own Pandora's Box media servers.
Both parties needed to account for the geometric distortions which came from the projection positions, as well as using soft-edge blending to create a seamless image despite the 3D warping.
Visitors had an opportunity to paint on the building using the digital graffiti wall and there was an extra digital element on the night. During the painting Lumacoustics used their software to project a virtual helicopter flying around the side of the office building. As the 3D helicopter, modelled on an Avon and Somerset Police helicopter, flew it highlighted the works of art being painted. The system used cutting edge mapping techniques to make the helicopter look real. The custom software was developed in VVVV which is a software toolkit allowing visual programming.
Tom Hogan, 30, of Lumacoustics Limited said: "It was breathtaking stuff as people were able to see these massive artworks take shape in front of their eyes. There have been laser pens used to digitally 'tag' the side of buildings but with this you can do full colour and detailed graffiti artwork. This is definitely a world first."
(Lee Baldock)
