Proto-Cubism that Metzinger was the first to recognize explicitly and implicitly the significance of the use of "a free, mobile perspective", and the "mixing... of the successive and the simultaneous". He was the first to write of the fact that artists had abandoned traditional perspective and were now free to move around their subjects to paint them from various points in space, and at various moments in time. Metzinger's role at center of Cubism both as a painter and theorist prompted Guillaume Apollinaire to write of Picasso, Braque and Metzinger as the first three Cubist painters. Now well beyond the teachings
Robert Paul (painter) 1979; his works can be found in the National Gallery of Zimbabwe. Robert Paul (painter) Robert Paul (1906–1979) was a Rhodesian abstract painter. Paul joined the Rhodesian police force, the British South Africa Police, in 1927, and during patrols in his early years became enamored of the local landscape. Self-taught as an artist, he would often bring his sketchbook along on his trips, recording the passing countryside. He was encouraged to paint by John Piper and Ivon Hitchens, who introduced him to the work of Georges Braque and other painters. Paul retired from the force in 1951 to paint full-time.