“In some respects, Op Art can be thought of as a development from Kinetic Art. The question posed was how to provide the viewer with an illusion of movement on a static 2D surface. Exploitation of the fallibility of the eye through the use of optical illusion provided Op Artists with the answer.
The use of repetition of pattern and line, often in high contrast black and white was one way Op Artists used to create this illusion of movement. The overall optical effect of the technique leads the viewer to see flashing and vibration, or alternatively swelling or warping.
Riley’s Untitled Diagonal Curve (shown below) is a good example of this technique, where black and white wavy lines are placed close to one another on the canvas making the surface appear to shimmer and move before the eyes.
Galaxie - 1979 Victor Vasarely
Victor Vasarely‘s Galaxie (shown below) is a classic example of the use of perspective in Op Art with the centralised vanishing point creating the illusion of a receeding frame or lattice set in space. The separation of art from traditional perspective that began with Cezanne in the late 19th Century allowed for the birth of the Abstract and Expressionist movements amongst others, both important influences on Op Art. Movements such as these de-emphasized (or, in many cases, eliminated altogether) representational subject matter.
Because of its geometrically-based nature, Op Art is, almost without exception, non-representational. However, despite this non-represenational nature, the Op Artists made extensive use of the traditional perspective techniques originally developed to allow for the accurate representation of the natural world in art, in order to create the feeling of depth and space within their paintings.
Orient 4 - 1970 Bridget Riley
With Op Art came an acute awareness of the work done on the science of colour and colour theory. Colours appear to change depending on their proximity to other colours. For example, a red shape on a white ground appears much lighter than the same red shape on a black ground. Colours opposite each other on the colour wheel when placed next to each other seem to be of different intensity than when placed some distance apart. Those colours in the cool range – blues, purples & greens – are recessive and seem to sink back on the surface whilst the warm colours – red, orange and yellow particularly – are ‘emergent’.
The manipulation of colours to achieve apparent movement is endless – some colours placed next to neutral greys appear to create new colours – an echo of a colour, an after image, and so on. The color relationships in play are known as simultaneous contrast, successive contrast, and reverse contrast (or assimilation).
The Hermann Grid (1870s) Ludimar Hermann
The phrase ‘Op Art’ was coined around the time of the famous ‘Responsive Eye’ exhibition, with ‘Op’ of course referring to optics – the physical and psychological process of vision. Work on the mathematical and scientific basis of perception had been ongoing since the 1800s, with much progress having been made in the 1950s and 1960s leading to a resurgence of interest in the field.
The Op Artists, through their study of the science behind how the eye and brain work together to perceive color, light, depth, perspective, size, shape, and motion, were able to put into practice the scientific work around visual perception. Op Art exploits the functional relationship between the eye’s retina (the organ that ‘sees’ patterns) and the brain (the organ that interprets patterns). Certain visual stimuli can cause confusion between these two organs, resulting in the perception of irrational optical phenomena, something the Op Artists used to full effect.
Enigma - 1981 Isia Leviant
In Perspective part I and part II we saw how linear perspective developed as the dominant force in Western art, only later to be discarded. This in turn led to the cubists experiments with form, Cezanne’s work with colour and the abandonment of representational art entirely in the form of abstraction. From here we looked at the simple geometric shapes of Mondrian and Malevich, the anti-art of the Dadaists, the wild imagination of the Surrealists, the expressive freedom of the Abstract Expressionists and the fascination with popular culture of the Pop Artists.
In this section we have looked at the influence of the simple geometry of the Bahaus movement and the movement of the Kinetic Artists. We have also looked at how the scientific basis of perception and colour developed and became better understood. So to answer the question as to what were the influences and origins of Op Art, the answer is hopefully clear… all of the above!”
http://www.op-art.co.uk/history/op-art-history-part-iii/
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