ENGLISH FOR DESIGN 1 Meeting 8 Prepared by : Dr. Ir. Indra Tjahjani, SS, MLA, MMSI Indra Tj - D 2422 1 OP ART Indra Tj - D 2422 2 OP ART - 1 • Op (optical illusion) art relies on confusing the brain with particular ambiguous arrangements of shapes. They consist of an equal proportion of black and white, however they may be distributed. We are designed physiologically to make ‘sense’ of what we see, and we do this by finding the structure of any arrangement. If there are two identical structures, one white and one black, the eye moves rapidly from one to the other trying to find the dominant one, and this rapid eye movement causes the dazzle typical of op art. Vasarely began working on op art between 1931 and 1938, and continued after 1951, but in England, Bridget Riley is the most well known practitioner. Indra Tj - D 2422 3 OP ART - 2 • Equal portions of complementary colors (red and green, orange and blue, etc) may be used instead of black and white. Indra Tj - D 2422 4 OP ART - 3 • Most op art images are worked out carefully to some predetermined plan, and all the edges of the shapes must be very sharp for the visual disturbance to work. The original paper could have been painted in black and white stripes of equal widths. Concentric circles with an equal distance between each circle could then have been cut out. By rotating the outermost ring until the stripes were at right angles to the background and so on until the centre was reached, one could achieve the effect in this picture. Indra Tj - D 2422 5 OP ART - 4 • Exactly the same procedure of cutting out concentric circles could have been used in this example, but instead of altering the stripes at affix 90 change each time, they are moved progressively a little more off the horizontal. Indra Tj - D 2422 6 OP ART - 5 • This time great care has been taken to see that the black stripes of one circle correspond exactly to the white stripes of the previous circle and so on, producing the check-board pattern. Most intriguing is the effect of changing the color of the border around the design, by shifting the emphasis of the shapes, one can see black shapes on a white ground, or vise versa. Indra Tj - D 2422 7 PLEASE SEE THE OTHER READING Indra Tj - D 2422 8