Vitreography (art form) fine art rendition of the Ken Burns effect, giving new dimension and life to still images. Both the particular art form and the application of the term "vitreography" were pioneered by the French-American artist Jean-Pierre Weill, Weill having trademarked the word in 1992. Painting on successive glass panes to add real-world dimension to a depiction is seen by some as the natural bridge between the arts of sculpting and painting. What distinguishes vitreography from other stacked glass pane paintings is that each level of a vitreography largely maintains its independence, creating scenes within a larger scene rather than a singular
Mathematics and art Optical illusions such as the Fraser spiral strikingly demonstrate limitations in human visual perception, creating what the art historian Ernst Gombrich called a "baffling trick." The black and white ropes that appear to form spirals are in fact concentric circles. The mid-twentieth century Op art or optical art style of painting and graphics exploited such effects to create the impression of movement and flashing or vibrating patterns seen in the work of artists such as Bridget Riley, Spyros Horemis, and Victor Vasarely. A strand of art from Ancient Greece onwards sees God as the geometer of the world, and the