jagged shapes of light origami designed to trick the mind , and forests of floating white dresses are just some of the magical installations coming to this year 's vivid .
each winter since 2009 the city has come alight with mind-bending light shows projected onto iconic buildings such as the sydney harbour bridge , opera house and the museum of contemporary art .
in 2015 the festival , which also includes a plethora of art , music and theatre shows as part of the exhibition , has expanded its installations outside the cbd .