The installation can be viewed from 18-20 September. Visitors will see the artists creations beamed onto a 500msq wall, made to fit the shape using Lumacoustic's software.
"It will be breathtaking stuff as people will be able to see these massive artworks take shape in front of their eyes," said Lumacoustics spokesperson Tom Hogan.
"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."
Elsewhere, the festival will feature 200 bands, DJs, comedians, artists and circus performers.
The event's hub is the Lloyd's Amphitheatre with an outdoor festival featuring seven stages and family-style entertainment, followed by ‘Rave on Avon' in ten city centre night clubs.
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