'Casting Light' is a visual spectacle in the form of highly luminous projections onto the façade of the Ulster Bank building in the centre of Cavan town to run in conjunction with Fleadh Cheoil na hÉireann 2011. This custom made, animated video imagery on the theme of contemporary Ireland was architecturally mapped onto the period buildings' façade. Avcom provided extremely bright high definition projection for the event. The alignment of the projection needs to be pixel perfect to achieve this spectacular effect.