José María Yturralde was among the first Spanish artists to use computers as a creative tool. Between 1968 and 1973, Yturralde developed a system for generating and transforming geometric shapes through code, creating structures that played with symmetry, depth, and illusion. Works from this period, including Five Pentagons, belong to his Impossible Figures series, generated from programmed instructions and drawn with a plotter. By combining computational methods with studies of perception, he created images that question how we experience space and how rational order can give rise to visual contradiction.
Five Pentagons presents two vertical sequences of pentagons set against a bright red background. Each column follows its own logic of arrangement, creating a subtle dissonance between them. The precision of the crisp blue lines heightens the sense of control, while the variation between columns introduces a quiet instability. The work highlights Yturralde’s pursuit of a space where mathematical order gives rise to perceptual ambiguity.
Related Works
Untitled Impossible Figure (red and yellow)José María Yturralde1971Print
Untitled Impossible Figure (red cube)José María Yturralde1972Print
Tanz der ElektronenHerbert W. Franke1970Print
KAESHerbert W. Franke1970Print
OszillgrammmeHerbert W. Franke1970Print
Untitled Plotter Drawing 2Gary Alfred Demos1970Plotter Drawing
Untitled Plotter Drawing 1Gary Alfred Demos1970Plotter Drawing
Earth's Magnetic FieldCharles Dodge1970Music/Sound
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