“Formes Virtuelles Par Deplacement du Spectateur,” created by Julio Le Parc in 1969, is an installation belonging to the Kinetic Art movement.
The artwork is an intricate installation designed to engage and challenge the viewer’s perception. It consists of a divided rectangular structure with two distinct sections. On the left, it features a dynamic interplay of black, white, and red curvilinear forms that appear to undulate and shift. The right section showcases black and white vertical striped patterns that create an optical illusion of motion and depth. This work exemplifies Kinetic Art’s emphasis on movement and viewer interaction, inviting spectators to actively participate in the visual experience and to perceive forms that change as they move.