Born in Udine, Italy, 1939, died on 24 February 2018 in Milan. Distinguished representative and protector of rational art based on mathematical rules. His creative ideas derive from rigorous rules of geometric abstraction and analysis of the properties of light, colour and material structure. His entire work, encompassing painting, sculpture, graphic art, spatial form, environmental art, industrial design and architecture, is rationally and mathematically verifiable; conducted research on optical and perceptual phenomena at the end of the 1950s and the beginning of the 1960s which led his to his Superfici a testura vibratile (vibrating texture surfaces) cycle, for which he used aluminium surfaces which he had polished and then abraded in order to produce a series of light reflections and oscillations. The 1960s and 70s marked the height of his artistic career, during which period he participated in numerous world-famous exhibitions. known for his ‘environments’ and optical-kinetic fabrics which later led to the op-art movement; head of the Painting Department at the Accademii di Belle Arti in Carrara (1976); Director of Museo de Arte Moderno in Ciudad Bolivar, Venezuela (1981–85); currently engaged in architectural design.